4944 lines
131 KiB
C
4944 lines
131 KiB
C
/*******************************************************************
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** w o r d s . c
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** Forth Inspired Command Language
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** ANS Forth CORE word-set written in C
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** Author: John Sadler (john_sadler@alum.mit.edu)
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** Created: 19 July 1997
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** $Id: words.c,v 1.17 2001/12/05 07:21:34 jsadler Exp $
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*******************************************************************/
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/*
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** Copyright (c) 1997-2001 John Sadler (john_sadler@alum.mit.edu)
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** All rights reserved.
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**
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** Get the latest Ficl release at http://ficl.sourceforge.net
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**
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** I am interested in hearing from anyone who uses ficl. If you have
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** a problem, a success story, a defect, an enhancement request, or
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** if you would like to contribute to the ficl release, please
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** contact me by email at the address above.
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**
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** L I C E N S E and D I S C L A I M E R
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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** SUCH DAMAGE.
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*/
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/* $FreeBSD$ */
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#ifdef TESTMAIN
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <fcntl.h>
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#else
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#include <stand.h>
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#endif
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#include <string.h>
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#include "ficl.h"
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#include "math64.h"
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static void colonParen(FICL_VM *pVM);
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static void literalIm(FICL_VM *pVM);
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static int ficlParseWord(FICL_VM *pVM, STRINGINFO si);
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/*
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** Control structure building words use these
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** strings' addresses as markers on the stack to
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** check for structure completion.
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*/
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static char doTag[] = "do";
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static char colonTag[] = "colon";
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static char leaveTag[] = "leave";
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static char destTag[] = "target";
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static char origTag[] = "origin";
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#if FICL_WANT_LOCALS
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static void doLocalIm(FICL_VM *pVM);
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static void do2LocalIm(FICL_VM *pVM);
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#endif
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/*
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** C O N T R O L S T R U C T U R E B U I L D E R S
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**
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** Push current dict location for later branch resolution.
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** The location may be either a branch target or a patch address...
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*/
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static void markBranch(FICL_DICT *dp, FICL_VM *pVM, char *tag)
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{
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PUSHPTR(dp->here);
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PUSHPTR(tag);
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return;
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}
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static void markControlTag(FICL_VM *pVM, char *tag)
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{
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PUSHPTR(tag);
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return;
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}
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static void matchControlTag(FICL_VM *pVM, char *tag)
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{
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char *cp;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 0);
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#endif
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cp = (char *)stackPopPtr(pVM->pStack);
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/*
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** Changed the code below to compare the pointers first (by popular demand)
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*/
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if ( (cp != tag) && strcmp(cp, tag) )
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{
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vmThrowErr(pVM, "Error -- unmatched control structure \"%s\"", tag);
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}
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return;
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}
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/*
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** Expect a branch target address on the param stack,
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** compile a literal offset from the current dict location
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** to the target address
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*/
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static void resolveBackBranch(FICL_DICT *dp, FICL_VM *pVM, char *tag)
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{
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FICL_INT offset;
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CELL *patchAddr;
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matchControlTag(pVM, tag);
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 0);
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#endif
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patchAddr = (CELL *)stackPopPtr(pVM->pStack);
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offset = patchAddr - dp->here;
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dictAppendCell(dp, LVALUEtoCELL(offset));
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return;
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}
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/*
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** Expect a branch patch address on the param stack,
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** compile a literal offset from the patch location
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** to the current dict location
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*/
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static void resolveForwardBranch(FICL_DICT *dp, FICL_VM *pVM, char *tag)
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{
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FICL_INT offset;
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CELL *patchAddr;
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matchControlTag(pVM, tag);
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 0);
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#endif
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patchAddr = (CELL *)stackPopPtr(pVM->pStack);
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offset = dp->here - patchAddr;
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*patchAddr = LVALUEtoCELL(offset);
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return;
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}
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/*
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** Match the tag to the top of the stack. If success,
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** sopy "here" address into the cell whose address is next
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** on the stack. Used by do..leave..loop.
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*/
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static void resolveAbsBranch(FICL_DICT *dp, FICL_VM *pVM, char *tag)
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{
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CELL *patchAddr;
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char *cp;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 0);
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#endif
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cp = stackPopPtr(pVM->pStack);
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/*
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** Changed the comparison below to compare the pointers first (by popular demand)
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*/
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if ((cp != tag) && strcmp(cp, tag))
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{
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vmTextOut(pVM, "Warning -- Unmatched control word: ", 0);
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vmTextOut(pVM, tag, 1);
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}
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patchAddr = (CELL *)stackPopPtr(pVM->pStack);
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*patchAddr = LVALUEtoCELL(dp->here);
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return;
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}
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/**************************************************************************
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f i c l P a r s e N u m b e r
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** Attempts to convert the NULL terminated string in the VM's pad to
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** a number using the VM's current base. If successful, pushes the number
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** onto the param stack and returns TRUE. Otherwise, returns FALSE.
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** (jws 8/01) Trailing decimal point causes a zero cell to be pushed. (See
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** the standard for DOUBLE wordset.
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**************************************************************************/
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int ficlParseNumber(FICL_VM *pVM, STRINGINFO si)
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{
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FICL_INT accum = 0;
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char isNeg = FALSE;
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char hasDP = FALSE;
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unsigned base = pVM->base;
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char *cp = SI_PTR(si);
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FICL_COUNT count= (FICL_COUNT)SI_COUNT(si);
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unsigned ch;
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unsigned digit;
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if (count > 1)
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{
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switch (*cp)
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{
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case '-':
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cp++;
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count--;
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isNeg = TRUE;
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break;
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case '+':
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cp++;
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count--;
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isNeg = FALSE;
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break;
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default:
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break;
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}
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}
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if ((count > 0) && (cp[count-1] == '.')) /* detect & remove trailing decimal */
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{
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hasDP = TRUE;
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count--;
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}
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if (count == 0) /* detect "+", "-", ".", "+." etc */
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return FALSE;
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while ((count--) && ((ch = *cp++) != '\0'))
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{
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if (!isalnum(ch))
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return FALSE;
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digit = ch - '0';
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if (digit > 9)
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digit = tolower(ch) - 'a' + 10;
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if (digit >= base)
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return FALSE;
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accum = accum * base + digit;
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}
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if (hasDP) /* simple (required) DOUBLE support */
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PUSHINT(0);
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if (isNeg)
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accum = -accum;
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PUSHINT(accum);
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if (pVM->state == COMPILE)
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literalIm(pVM);
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return TRUE;
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}
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/**************************************************************************
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a d d & f r i e n d s
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**
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**************************************************************************/
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static void add(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 1);
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#endif
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i = stackPopINT(pVM->pStack);
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i += stackGetTop(pVM->pStack).i;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void sub(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 1);
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#endif
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i = stackPopINT(pVM->pStack);
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i = stackGetTop(pVM->pStack).i - i;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void mul(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 1);
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#endif
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i = stackPopINT(pVM->pStack);
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i *= stackGetTop(pVM->pStack).i;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void negate(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 1);
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#endif
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i = -stackPopINT(pVM->pStack);
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PUSHINT(i);
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return;
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}
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static void ficlDiv(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 1);
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#endif
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i = stackPopINT(pVM->pStack);
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i = stackGetTop(pVM->pStack).i / i;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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/*
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** slash-mod CORE ( n1 n2 -- n3 n4 )
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** Divide n1 by n2, giving the single-cell remainder n3 and the single-cell
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** quotient n4. An ambiguous condition exists if n2 is zero. If n1 and n2
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** differ in sign, the implementation-defined result returned will be the
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** same as that returned by either the phrase
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** >R S>D R> FM/MOD or the phrase >R S>D R> SM/REM .
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** NOTE: Ficl complies with the second phrase (symmetric division)
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*/
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static void slashMod(FICL_VM *pVM)
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{
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DPINT n1;
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FICL_INT n2;
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INTQR qr;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 2);
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#endif
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n2 = stackPopINT(pVM->pStack);
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n1.lo = stackPopINT(pVM->pStack);
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i64Extend(n1);
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qr = m64SymmetricDivI(n1, n2);
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PUSHINT(qr.rem);
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PUSHINT(qr.quot);
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return;
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}
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static void onePlus(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 1);
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#endif
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i = stackGetTop(pVM->pStack).i;
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i += 1;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void oneMinus(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 1);
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#endif
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i = stackGetTop(pVM->pStack).i;
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i -= 1;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void twoMul(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 1);
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#endif
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i = stackGetTop(pVM->pStack).i;
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i *= 2;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void twoDiv(FICL_VM *pVM)
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{
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FICL_INT i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 1);
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#endif
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i = stackGetTop(pVM->pStack).i;
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i >>= 1;
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stackSetTop(pVM->pStack, LVALUEtoCELL(i));
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return;
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}
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static void mulDiv(FICL_VM *pVM)
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{
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FICL_INT x, y, z;
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DPINT prod;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 1);
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#endif
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z = stackPopINT(pVM->pStack);
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y = stackPopINT(pVM->pStack);
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x = stackPopINT(pVM->pStack);
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prod = m64MulI(x,y);
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x = m64SymmetricDivI(prod, z).quot;
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PUSHINT(x);
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return;
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}
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static void mulDivRem(FICL_VM *pVM)
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{
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FICL_INT x, y, z;
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DPINT prod;
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INTQR qr;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 2);
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#endif
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z = stackPopINT(pVM->pStack);
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y = stackPopINT(pVM->pStack);
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x = stackPopINT(pVM->pStack);
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prod = m64MulI(x,y);
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qr = m64SymmetricDivI(prod, z);
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PUSHINT(qr.rem);
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PUSHINT(qr.quot);
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return;
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}
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/**************************************************************************
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c o l o n d e f i n i t i o n s
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** Code to begin compiling a colon definition
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** This function sets the state to COMPILE, then creates a
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** new word whose name is the next word in the input stream
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** and whose code is colonParen.
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**************************************************************************/
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static void colon(FICL_VM *pVM)
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{
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FICL_DICT *dp = vmGetDict(pVM);
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STRINGINFO si = vmGetWord(pVM);
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dictCheckThreshold(dp);
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pVM->state = COMPILE;
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markControlTag(pVM, colonTag);
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dictAppendWord2(dp, si, colonParen, FW_DEFAULT | FW_SMUDGE);
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#if FICL_WANT_LOCALS
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pVM->pSys->nLocals = 0;
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#endif
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return;
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}
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|
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/**************************************************************************
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c o l o n P a r e n
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** This is the code that executes a colon definition. It assumes that the
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** virtual machine is running a "next" loop (See the vm.c
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** for its implementation of member function vmExecute()). The colon
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** code simply copies the address of the first word in the list of words
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** to interpret into IP after saving its old value. When we return to the
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** "next" loop, the virtual machine will call the code for each word in
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** turn.
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**
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**************************************************************************/
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static void colonParen(FICL_VM *pVM)
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{
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IPTYPE tempIP = (IPTYPE) (pVM->runningWord->param);
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vmPushIP(pVM, tempIP);
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return;
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}
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|
|
|
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/**************************************************************************
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|
s e m i c o l o n C o I m
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|
**
|
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** IMMEDIATE code for ";". This function sets the state to INTERPRET and
|
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** terminates a word under compilation by appending code for "(;)" to
|
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** the definition. TO DO: checks for leftover branch target tags on the
|
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** return stack and complains if any are found.
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**************************************************************************/
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static void semiParen(FICL_VM *pVM)
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{
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vmPopIP(pVM);
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return;
|
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}
|
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|
|
|
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static void semicolonCoIm(FICL_VM *pVM)
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{
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FICL_DICT *dp = vmGetDict(pVM);
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assert(pVM->pSys->pSemiParen);
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matchControlTag(pVM, colonTag);
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|
|
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#if FICL_WANT_LOCALS
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assert(pVM->pSys->pUnLinkParen);
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if (pVM->pSys->nLocals > 0)
|
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{
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FICL_DICT *pLoc = ficlGetLoc(pVM->pSys);
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dictEmpty(pLoc, pLoc->pForthWords->size);
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dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pUnLinkParen));
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}
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pVM->pSys->nLocals = 0;
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#endif
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|
|
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dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pSemiParen));
|
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pVM->state = INTERPRET;
|
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dictUnsmudge(dp);
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return;
|
|
}
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|
|
|
|
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/**************************************************************************
|
|
e x i t
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|
** CORE
|
|
** This function simply pops the previous instruction
|
|
** pointer and returns to the "next" loop. Used for exiting from within
|
|
** a definition. Note that exitParen is identical to semiParen - they
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|
** are in two different functions so that "see" can correctly identify
|
|
** the end of a colon definition, even if it uses "exit".
|
|
**************************************************************************/
|
|
static void exitParen(FICL_VM *pVM)
|
|
{
|
|
vmPopIP(pVM);
|
|
return;
|
|
}
|
|
|
|
static void exitCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
assert(pVM->pSys->pExitParen);
|
|
IGNORE(pVM);
|
|
|
|
#if FICL_WANT_LOCALS
|
|
if (pVM->pSys->nLocals > 0)
|
|
{
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pUnLinkParen));
|
|
}
|
|
#endif
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pExitParen));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
c o n s t a n t P a r e n
|
|
** This is the run-time code for "constant". It simply returns the
|
|
** contents of its word's first data cell.
|
|
**
|
|
**************************************************************************/
|
|
|
|
void constantParen(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pFW = pVM->runningWord;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
stackPush(pVM->pStack, pFW->param[0]);
|
|
return;
|
|
}
|
|
|
|
void twoConstParen(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pFW = pVM->runningWord;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 2);
|
|
#endif
|
|
stackPush(pVM->pStack, pFW->param[0]); /* lo */
|
|
stackPush(pVM->pStack, pFW->param[1]); /* hi */
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
c o n s t a n t
|
|
** IMMEDIATE
|
|
** Compiles a constant into the dictionary. Constants return their
|
|
** value when invoked. Expects a value on top of the parm stack.
|
|
**************************************************************************/
|
|
|
|
static void constant(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
dictAppendWord2(dp, si, constantParen, FW_DEFAULT);
|
|
dictAppendCell(dp, stackPop(pVM->pStack));
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoConstant(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
CELL c;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
c = stackPop(pVM->pStack);
|
|
dictAppendWord2(dp, si, twoConstParen, FW_DEFAULT);
|
|
dictAppendCell(dp, stackPop(pVM->pStack));
|
|
dictAppendCell(dp, c);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
d i s p l a y C e l l
|
|
** Drop and print the contents of the cell at the top of the param
|
|
** stack
|
|
**************************************************************************/
|
|
|
|
static void displayCell(FICL_VM *pVM)
|
|
{
|
|
CELL c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
c = stackPop(pVM->pStack);
|
|
ltoa((c).i, pVM->pad, pVM->base);
|
|
strcat(pVM->pad, " ");
|
|
vmTextOut(pVM, pVM->pad, 0);
|
|
return;
|
|
}
|
|
|
|
static void uDot(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS u;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
u = stackPopUNS(pVM->pStack);
|
|
ultoa(u, pVM->pad, pVM->base);
|
|
strcat(pVM->pad, " ");
|
|
vmTextOut(pVM, pVM->pad, 0);
|
|
return;
|
|
}
|
|
|
|
|
|
static void hexDot(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS u;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
u = stackPopUNS(pVM->pStack);
|
|
ultoa(u, pVM->pad, 16);
|
|
strcat(pVM->pad, " ");
|
|
vmTextOut(pVM, pVM->pad, 0);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s t r l e n
|
|
** FICL ( c-string -- length )
|
|
**
|
|
** Returns the length of a C-style (zero-terminated) string.
|
|
**
|
|
** --lch
|
|
**/
|
|
static void ficlStrlen(FICL_VM *ficlVM)
|
|
{
|
|
char *address = (char *)stackPopPtr(ficlVM->pStack);
|
|
stackPushINT(ficlVM->pStack, strlen(address));
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s p r i n t f
|
|
** FICL ( i*x c-addr-fmt u-fmt c-addr-buffer u-buffer -- c-addr-buffer u-written success-flag )
|
|
** Similar to the C sprintf() function. It formats into a buffer based on
|
|
** a "format" string. Each character in the format string is copied verbatim
|
|
** to the output buffer, until SPRINTF encounters a percent sign ("%").
|
|
** SPRINTF then skips the percent sign, and examines the next character
|
|
** (the "format character"). Here are the valid format characters:
|
|
** s - read a C-ADDR U-LENGTH string from the stack and copy it to
|
|
** the buffer
|
|
** d - read a cell from the stack, format it as a string (base-10,
|
|
** signed), and copy it to the buffer
|
|
** x - same as d, except in base-16
|
|
** u - same as d, but unsigned
|
|
** % - output a literal percent-sign to the buffer
|
|
** SPRINTF returns the c-addr-buffer argument unchanged, the number of bytes
|
|
** written, and a flag indicating whether or not it ran out of space while
|
|
** writing to the output buffer (TRUE if it ran out of space).
|
|
**
|
|
** If SPRINTF runs out of space in the buffer to store the formatted string,
|
|
** it still continues parsing, in an effort to preserve your stack (otherwise
|
|
** it might leave uneaten arguments behind).
|
|
**
|
|
** --lch
|
|
**************************************************************************/
|
|
static void ficlSprintf(FICL_VM *pVM) /* */
|
|
{
|
|
int bufferLength = stackPopINT(pVM->pStack);
|
|
char *buffer = (char *)stackPopPtr(pVM->pStack);
|
|
char *bufferStart = buffer;
|
|
|
|
int formatLength = stackPopINT(pVM->pStack);
|
|
char *format = (char *)stackPopPtr(pVM->pStack);
|
|
char *formatStop = format + formatLength;
|
|
|
|
int base = 10;
|
|
int unsignedInteger = FALSE;
|
|
|
|
FICL_INT append = FICL_TRUE;
|
|
|
|
while (format < formatStop)
|
|
{
|
|
char scratch[64];
|
|
char *source;
|
|
int actualLength;
|
|
int desiredLength;
|
|
int leadingZeroes;
|
|
|
|
|
|
if (*format != '%')
|
|
{
|
|
source = format;
|
|
actualLength = desiredLength = 1;
|
|
leadingZeroes = 0;
|
|
}
|
|
else
|
|
{
|
|
format++;
|
|
if (format == formatStop)
|
|
break;
|
|
|
|
leadingZeroes = (*format == '0');
|
|
if (leadingZeroes)
|
|
{
|
|
format++;
|
|
if (format == formatStop)
|
|
break;
|
|
}
|
|
|
|
desiredLength = isdigit(*format);
|
|
if (desiredLength)
|
|
{
|
|
desiredLength = strtol(format, &format, 10);
|
|
if (format == formatStop)
|
|
break;
|
|
}
|
|
else if (*format == '*')
|
|
{
|
|
desiredLength = stackPopINT(pVM->pStack);
|
|
format++;
|
|
if (format == formatStop)
|
|
break;
|
|
}
|
|
|
|
|
|
switch (*format)
|
|
{
|
|
case 's':
|
|
case 'S':
|
|
{
|
|
actualLength = stackPopINT(pVM->pStack);
|
|
source = (char *)stackPopPtr(pVM->pStack);
|
|
break;
|
|
}
|
|
case 'x':
|
|
case 'X':
|
|
base = 16;
|
|
case 'u':
|
|
case 'U':
|
|
unsignedInteger = TRUE;
|
|
case 'd':
|
|
case 'D':
|
|
{
|
|
int integer = stackPopINT(pVM->pStack);
|
|
if (unsignedInteger)
|
|
ultoa(integer, scratch, base);
|
|
else
|
|
ltoa(integer, scratch, base);
|
|
base = 10;
|
|
unsignedInteger = FALSE;
|
|
source = scratch;
|
|
actualLength = strlen(scratch);
|
|
break;
|
|
}
|
|
case '%':
|
|
source = format;
|
|
actualLength = 1;
|
|
default:
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (append != FICL_FALSE)
|
|
{
|
|
if (!desiredLength)
|
|
desiredLength = actualLength;
|
|
if (desiredLength > bufferLength)
|
|
{
|
|
append = FICL_FALSE;
|
|
desiredLength = bufferLength;
|
|
}
|
|
while (desiredLength > actualLength)
|
|
{
|
|
*buffer++ = (char)((leadingZeroes) ? '0' : ' ');
|
|
bufferLength--;
|
|
desiredLength--;
|
|
}
|
|
memcpy(buffer, source, actualLength);
|
|
buffer += actualLength;
|
|
bufferLength -= actualLength;
|
|
}
|
|
|
|
format++;
|
|
}
|
|
|
|
stackPushPtr(pVM->pStack, bufferStart);
|
|
stackPushINT(pVM->pStack, buffer - bufferStart);
|
|
stackPushINT(pVM->pStack, append);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
d u p & f r i e n d s
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void depth(FICL_VM *pVM)
|
|
{
|
|
int i;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
i = stackDepth(pVM->pStack);
|
|
PUSHINT(i);
|
|
return;
|
|
}
|
|
|
|
|
|
static void drop(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
stackDrop(pVM->pStack, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoDrop(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
stackDrop(pVM->pStack, 2);
|
|
return;
|
|
}
|
|
|
|
|
|
static void dup(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 2);
|
|
#endif
|
|
stackPick(pVM->pStack, 0);
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoDup(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 4);
|
|
#endif
|
|
stackPick(pVM->pStack, 1);
|
|
stackPick(pVM->pStack, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void over(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 3);
|
|
#endif
|
|
stackPick(pVM->pStack, 1);
|
|
return;
|
|
}
|
|
|
|
static void twoOver(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 4, 6);
|
|
#endif
|
|
stackPick(pVM->pStack, 3);
|
|
stackPick(pVM->pStack, 3);
|
|
return;
|
|
}
|
|
|
|
|
|
static void pick(FICL_VM *pVM)
|
|
{
|
|
CELL c = stackPop(pVM->pStack);
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, c.i+1, c.i+2);
|
|
#endif
|
|
stackPick(pVM->pStack, c.i);
|
|
return;
|
|
}
|
|
|
|
|
|
static void questionDup(FICL_VM *pVM)
|
|
{
|
|
CELL c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 2);
|
|
#endif
|
|
c = stackGetTop(pVM->pStack);
|
|
|
|
if (c.i != 0)
|
|
stackPick(pVM->pStack, 0);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void roll(FICL_VM *pVM)
|
|
{
|
|
int i = stackPop(pVM->pStack).i;
|
|
i = (i > 0) ? i : 0;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, i+1, i+1);
|
|
#endif
|
|
stackRoll(pVM->pStack, i);
|
|
return;
|
|
}
|
|
|
|
|
|
static void minusRoll(FICL_VM *pVM)
|
|
{
|
|
int i = stackPop(pVM->pStack).i;
|
|
i = (i > 0) ? i : 0;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, i+1, i+1);
|
|
#endif
|
|
stackRoll(pVM->pStack, -i);
|
|
return;
|
|
}
|
|
|
|
|
|
static void rot(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 3, 3);
|
|
#endif
|
|
stackRoll(pVM->pStack, 2);
|
|
return;
|
|
}
|
|
|
|
|
|
static void swap(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 2);
|
|
#endif
|
|
stackRoll(pVM->pStack, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoSwap(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 4, 4);
|
|
#endif
|
|
stackRoll(pVM->pStack, 3);
|
|
stackRoll(pVM->pStack, 3);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
e m i t & f r i e n d s
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void emit(FICL_VM *pVM)
|
|
{
|
|
char *cp = pVM->pad;
|
|
int i;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
i = stackPopINT(pVM->pStack);
|
|
cp[0] = (char)i;
|
|
cp[1] = '\0';
|
|
vmTextOut(pVM, cp, 0);
|
|
return;
|
|
}
|
|
|
|
|
|
static void cr(FICL_VM *pVM)
|
|
{
|
|
vmTextOut(pVM, "", 1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void commentLine(FICL_VM *pVM)
|
|
{
|
|
char *cp = vmGetInBuf(pVM);
|
|
char *pEnd = vmGetInBufEnd(pVM);
|
|
char ch = *cp;
|
|
|
|
while ((cp != pEnd) && (ch != '\r') && (ch != '\n'))
|
|
{
|
|
ch = *++cp;
|
|
}
|
|
|
|
/*
|
|
** Cope with DOS or UNIX-style EOLs -
|
|
** Check for /r, /n, /r/n, or /n/r end-of-line sequences,
|
|
** and point cp to next char. If EOL is \0, we're done.
|
|
*/
|
|
if (cp != pEnd)
|
|
{
|
|
cp++;
|
|
|
|
if ( (cp != pEnd) && (ch != *cp)
|
|
&& ((*cp == '\r') || (*cp == '\n')) )
|
|
cp++;
|
|
}
|
|
|
|
vmUpdateTib(pVM, cp);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** paren CORE
|
|
** Compilation: Perform the execution semantics given below.
|
|
** Execution: ( "ccc<paren>" -- )
|
|
** Parse ccc delimited by ) (right parenthesis). ( is an immediate word.
|
|
** The number of characters in ccc may be zero to the number of characters
|
|
** in the parse area.
|
|
**
|
|
*/
|
|
static void commentHang(FICL_VM *pVM)
|
|
{
|
|
vmParseStringEx(pVM, ')', 0);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
F E T C H & S T O R E
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void fetch(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
pCell = (CELL *)stackPopPtr(pVM->pStack);
|
|
stackPush(pVM->pStack, *pCell);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** two-fetch CORE ( a-addr -- x1 x2 )
|
|
** Fetch the cell pair x1 x2 stored at a-addr. x2 is stored at a-addr and
|
|
** x1 at the next consecutive cell. It is equivalent to the sequence
|
|
** DUP CELL+ @ SWAP @ .
|
|
*/
|
|
static void twoFetch(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 2);
|
|
#endif
|
|
pCell = (CELL *)stackPopPtr(pVM->pStack);
|
|
stackPush(pVM->pStack, *pCell++);
|
|
stackPush(pVM->pStack, *pCell);
|
|
swap(pVM);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** store CORE ( x a-addr -- )
|
|
** Store x at a-addr.
|
|
*/
|
|
static void store(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
pCell = (CELL *)stackPopPtr(pVM->pStack);
|
|
*pCell = stackPop(pVM->pStack);
|
|
}
|
|
|
|
/*
|
|
** two-store CORE ( x1 x2 a-addr -- )
|
|
** Store the cell pair x1 x2 at a-addr, with x2 at a-addr and x1 at the
|
|
** next consecutive cell. It is equivalent to the sequence
|
|
** SWAP OVER ! CELL+ ! .
|
|
*/
|
|
static void twoStore(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 3, 0);
|
|
#endif
|
|
pCell = (CELL *)stackPopPtr(pVM->pStack);
|
|
*pCell++ = stackPop(pVM->pStack);
|
|
*pCell = stackPop(pVM->pStack);
|
|
}
|
|
|
|
static void plusStore(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
pCell = (CELL *)stackPopPtr(pVM->pStack);
|
|
pCell->i += stackPop(pVM->pStack).i;
|
|
}
|
|
|
|
|
|
static void quadFetch(FICL_VM *pVM)
|
|
{
|
|
UNS32 *pw;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
pw = (UNS32 *)stackPopPtr(pVM->pStack);
|
|
PUSHUNS((FICL_UNS)*pw);
|
|
return;
|
|
}
|
|
|
|
static void quadStore(FICL_VM *pVM)
|
|
{
|
|
UNS32 *pw;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
pw = (UNS32 *)stackPopPtr(pVM->pStack);
|
|
*pw = (UNS32)(stackPop(pVM->pStack).u);
|
|
}
|
|
|
|
static void wFetch(FICL_VM *pVM)
|
|
{
|
|
UNS16 *pw;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
pw = (UNS16 *)stackPopPtr(pVM->pStack);
|
|
PUSHUNS((FICL_UNS)*pw);
|
|
return;
|
|
}
|
|
|
|
static void wStore(FICL_VM *pVM)
|
|
{
|
|
UNS16 *pw;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
pw = (UNS16 *)stackPopPtr(pVM->pStack);
|
|
*pw = (UNS16)(stackPop(pVM->pStack).u);
|
|
}
|
|
|
|
static void cFetch(FICL_VM *pVM)
|
|
{
|
|
UNS8 *pc;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
pc = (UNS8 *)stackPopPtr(pVM->pStack);
|
|
PUSHUNS((FICL_UNS)*pc);
|
|
return;
|
|
}
|
|
|
|
static void cStore(FICL_VM *pVM)
|
|
{
|
|
UNS8 *pc;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
pc = (UNS8 *)stackPopPtr(pVM->pStack);
|
|
*pc = (UNS8)(stackPop(pVM->pStack).u);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
i f C o I m
|
|
** IMMEDIATE
|
|
** Compiles code for a conditional branch into the dictionary
|
|
** and pushes the branch patch address on the stack for later
|
|
** patching by ELSE or THEN/ENDIF.
|
|
**************************************************************************/
|
|
|
|
static void ifCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pIfParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pIfParen));
|
|
markBranch(dp, pVM, origTag);
|
|
dictAppendUNS(dp, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
i f P a r e n
|
|
** Runtime code to do "if" or "until": pop a flag from the stack,
|
|
** fall through if true, branch if false. Probably ought to be
|
|
** called (not?branch) since it does "branch if false".
|
|
**************************************************************************/
|
|
|
|
static void ifParen(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS flag;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
flag = stackPopUNS(pVM->pStack);
|
|
|
|
if (flag)
|
|
{ /* fall through */
|
|
vmBranchRelative(pVM, 1);
|
|
}
|
|
else
|
|
{ /* take branch (to else/endif/begin) */
|
|
vmBranchRelative(pVM, (uintptr_t)*(pVM->ip));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
e l s e C o I m
|
|
**
|
|
** IMMEDIATE -- compiles an "else"...
|
|
** 1) Compile a branch and a patch address; the address gets patched
|
|
** by "endif" to point past the "else" code.
|
|
** 2) Pop the the "if" patch address
|
|
** 3) Patch the "if" branch to point to the current compile address.
|
|
** 4) Push the "else" patch address. ("endif" patches this to jump past
|
|
** the "else" code.
|
|
**************************************************************************/
|
|
|
|
static void elseCoIm(FICL_VM *pVM)
|
|
{
|
|
CELL *patchAddr;
|
|
FICL_INT offset;
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pBranchParen);
|
|
/* (1) compile branch runtime */
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pBranchParen));
|
|
matchControlTag(pVM, origTag);
|
|
patchAddr =
|
|
(CELL *)stackPopPtr(pVM->pStack); /* (2) pop "if" patch addr */
|
|
markBranch(dp, pVM, origTag); /* (4) push "else" patch addr */
|
|
dictAppendUNS(dp, 1); /* (1) compile patch placeholder */
|
|
offset = dp->here - patchAddr;
|
|
*patchAddr = LVALUEtoCELL(offset); /* (3) Patch "if" */
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
b r a n c h P a r e n
|
|
**
|
|
** Runtime for "(branch)" -- expects a literal offset in the next
|
|
** compilation address, and branches to that location.
|
|
**************************************************************************/
|
|
|
|
static void branchParen(FICL_VM *pVM)
|
|
{
|
|
vmBranchRelative(pVM, (uintptr_t)*(pVM->ip));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
e n d i f C o I m
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void endifCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
resolveForwardBranch(dp, pVM, origTag);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
h a s h
|
|
** hash ( c-addr u -- code)
|
|
** calculates hashcode of specified string and leaves it on the stack
|
|
**************************************************************************/
|
|
|
|
static void hash(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
SI_SETLEN(si, stackPopUNS(pVM->pStack));
|
|
SI_SETPTR(si, stackPopPtr(pVM->pStack));
|
|
PUSHUNS(hashHashCode(si));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
i n t e r p r e t
|
|
** This is the "user interface" of a Forth. It does the following:
|
|
** while there are words in the VM's Text Input Buffer
|
|
** Copy next word into the pad (vmGetWord)
|
|
** Attempt to find the word in the dictionary (dictLookup)
|
|
** If successful, execute the word.
|
|
** Otherwise, attempt to convert the word to a number (isNumber)
|
|
** If successful, push the number onto the parameter stack.
|
|
** Otherwise, print an error message and exit loop...
|
|
** End Loop
|
|
**
|
|
** From the standard, section 3.4
|
|
** Text interpretation (see 6.1.1360 EVALUATE and 6.1.2050 QUIT) shall
|
|
** repeat the following steps until either the parse area is empty or an
|
|
** ambiguous condition exists:
|
|
** a) Skip leading spaces and parse a name (see 3.4.1);
|
|
**************************************************************************/
|
|
|
|
static void interpret(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
int i;
|
|
FICL_SYSTEM *pSys;
|
|
|
|
assert(pVM);
|
|
|
|
pSys = pVM->pSys;
|
|
si = vmGetWord0(pVM);
|
|
|
|
/*
|
|
** Get next word...if out of text, we're done.
|
|
*/
|
|
if (si.count == 0)
|
|
{
|
|
vmThrow(pVM, VM_OUTOFTEXT);
|
|
}
|
|
|
|
/*
|
|
** Attempt to find the incoming token in the dictionary. If that fails...
|
|
** run the parse chain against the incoming token until somebody eats it.
|
|
** Otherwise emit an error message and give up.
|
|
** Although ficlParseWord could be part of the parse list, I've hard coded it
|
|
** in for robustness. ficlInitSystem adds the other default steps to the list.
|
|
*/
|
|
if (ficlParseWord(pVM, si))
|
|
return;
|
|
|
|
for (i=0; i < FICL_MAX_PARSE_STEPS; i++)
|
|
{
|
|
FICL_WORD *pFW = pSys->parseList[i];
|
|
|
|
if (pFW == NULL)
|
|
break;
|
|
|
|
if (pFW->code == parseStepParen)
|
|
{
|
|
FICL_PARSE_STEP pStep;
|
|
pStep = (FICL_PARSE_STEP)(pFW->param->fn);
|
|
if ((*pStep)(pVM, si))
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
stackPushPtr(pVM->pStack, SI_PTR(si));
|
|
stackPushUNS(pVM->pStack, SI_COUNT(si));
|
|
ficlExecXT(pVM, pFW);
|
|
if (stackPopINT(pVM->pStack))
|
|
return;
|
|
}
|
|
}
|
|
|
|
i = SI_COUNT(si);
|
|
vmThrowErr(pVM, "%.*s not found", i, SI_PTR(si));
|
|
|
|
return; /* back to inner interpreter */
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
f i c l P a r s e W o r d
|
|
** From the standard, section 3.4
|
|
** b) Search the dictionary name space (see 3.4.2). If a definition name
|
|
** matching the string is found:
|
|
** 1.if interpreting, perform the interpretation semantics of the definition
|
|
** (see 3.4.3.2), and continue at a);
|
|
** 2.if compiling, perform the compilation semantics of the definition
|
|
** (see 3.4.3.3), and continue at a).
|
|
**
|
|
** c) If a definition name matching the string is not found, attempt to
|
|
** convert the string to a number (see 3.4.1.3). If successful:
|
|
** 1.if interpreting, place the number on the data stack, and continue at a);
|
|
** 2.if compiling, compile code that when executed will place the number on
|
|
** the stack (see 6.1.1780 LITERAL), and continue at a);
|
|
**
|
|
** d) If unsuccessful, an ambiguous condition exists (see 3.4.4).
|
|
**
|
|
** (jws 4/01) Modified to be a FICL_PARSE_STEP
|
|
**************************************************************************/
|
|
static int ficlParseWord(FICL_VM *pVM, STRINGINFO si)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
FICL_WORD *tempFW;
|
|
|
|
#if FICL_ROBUST
|
|
dictCheck(dp, pVM, 0);
|
|
vmCheckStack(pVM, 0, 0);
|
|
#endif
|
|
|
|
#if FICL_WANT_LOCALS
|
|
if (pVM->pSys->nLocals > 0)
|
|
{
|
|
tempFW = ficlLookupLoc(pVM->pSys, si);
|
|
}
|
|
else
|
|
#endif
|
|
tempFW = dictLookup(dp, si);
|
|
|
|
if (pVM->state == INTERPRET)
|
|
{
|
|
if (tempFW != NULL)
|
|
{
|
|
if (wordIsCompileOnly(tempFW))
|
|
{
|
|
vmThrowErr(pVM, "Error: Compile only!");
|
|
}
|
|
|
|
vmExecute(pVM, tempFW);
|
|
return (int)FICL_TRUE;
|
|
}
|
|
}
|
|
|
|
else /* (pVM->state == COMPILE) */
|
|
{
|
|
if (tempFW != NULL)
|
|
{
|
|
if (wordIsImmediate(tempFW))
|
|
{
|
|
vmExecute(pVM, tempFW);
|
|
}
|
|
else
|
|
{
|
|
dictAppendCell(dp, LVALUEtoCELL(tempFW));
|
|
}
|
|
return (int)FICL_TRUE;
|
|
}
|
|
}
|
|
|
|
return FICL_FALSE;
|
|
}
|
|
|
|
|
|
/*
|
|
** Surrogate precompiled parse step for ficlParseWord (this step is hard coded in
|
|
** INTERPRET)
|
|
*/
|
|
static void lookup(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
SI_SETLEN(si, stackPopUNS(pVM->pStack));
|
|
SI_SETPTR(si, stackPopPtr(pVM->pStack));
|
|
stackPushINT(pVM->pStack, ficlParseWord(pVM, si));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
p a r e n P a r s e S t e p
|
|
** (parse-step) ( c-addr u -- flag )
|
|
** runtime for a precompiled parse step - pop a counted string off the
|
|
** stack, run the parse step against it, and push the result flag (FICL_TRUE
|
|
** if success, FICL_FALSE otherwise).
|
|
**************************************************************************/
|
|
|
|
void parseStepParen(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
FICL_WORD *pFW = pVM->runningWord;
|
|
FICL_PARSE_STEP pStep = (FICL_PARSE_STEP)(pFW->param->fn);
|
|
|
|
SI_SETLEN(si, stackPopINT(pVM->pStack));
|
|
SI_SETPTR(si, stackPopPtr(pVM->pStack));
|
|
|
|
PUSHINT((*pStep)(pVM, si));
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void addParseStep(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pStep;
|
|
FICL_DICT *pd = vmGetDict(pVM);
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
pStep = (FICL_WORD *)(stackPop(pVM->pStack).p);
|
|
if ((pStep != NULL) && isAFiclWord(pd, pStep))
|
|
ficlAddParseStep(pVM->pSys, pStep);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
l i t e r a l P a r e n
|
|
**
|
|
** This is the runtime for (literal). It assumes that it is part of a colon
|
|
** definition, and that the next CELL contains a value to be pushed on the
|
|
** parameter stack at runtime. This code is compiled by "literal".
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void literalParen(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
PUSHINT(*(FICL_INT *)(pVM->ip));
|
|
vmBranchRelative(pVM, 1);
|
|
return;
|
|
}
|
|
|
|
static void twoLitParen(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 2);
|
|
#endif
|
|
PUSHINT(*((FICL_INT *)(pVM->ip)+1));
|
|
PUSHINT(*(FICL_INT *)(pVM->ip));
|
|
vmBranchRelative(pVM, 2);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
l i t e r a l I m
|
|
**
|
|
** IMMEDIATE code for "literal". This function gets a value from the stack
|
|
** and compiles it into the dictionary preceded by the code for "(literal)".
|
|
** IMMEDIATE
|
|
**************************************************************************/
|
|
|
|
static void literalIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
assert(pVM->pSys->pLitParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pLitParen));
|
|
dictAppendCell(dp, stackPop(pVM->pStack));
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoLiteralIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
assert(pVM->pSys->pTwoLitParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pTwoLitParen));
|
|
dictAppendCell(dp, stackPop(pVM->pStack));
|
|
dictAppendCell(dp, stackPop(pVM->pStack));
|
|
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
l o g i c a n d c o m p a r i s o n s
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void zeroEquals(FICL_VM *pVM)
|
|
{
|
|
CELL c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
c.i = FICL_BOOL(stackPopINT(pVM->pStack) == 0);
|
|
stackPush(pVM->pStack, c);
|
|
return;
|
|
}
|
|
|
|
static void zeroLess(FICL_VM *pVM)
|
|
{
|
|
CELL c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
c.i = FICL_BOOL(stackPopINT(pVM->pStack) < 0);
|
|
stackPush(pVM->pStack, c);
|
|
return;
|
|
}
|
|
|
|
static void zeroGreater(FICL_VM *pVM)
|
|
{
|
|
CELL c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
c.i = FICL_BOOL(stackPopINT(pVM->pStack) > 0);
|
|
stackPush(pVM->pStack, c);
|
|
return;
|
|
}
|
|
|
|
static void isEqual(FICL_VM *pVM)
|
|
{
|
|
CELL x, y;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
x = stackPop(pVM->pStack);
|
|
y = stackPop(pVM->pStack);
|
|
PUSHINT(FICL_BOOL(x.i == y.i));
|
|
return;
|
|
}
|
|
|
|
static void isLess(FICL_VM *pVM)
|
|
{
|
|
CELL x, y;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
y = stackPop(pVM->pStack);
|
|
x = stackPop(pVM->pStack);
|
|
PUSHINT(FICL_BOOL(x.i < y.i));
|
|
return;
|
|
}
|
|
|
|
static void uIsLess(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS u1, u2;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
u2 = stackPopUNS(pVM->pStack);
|
|
u1 = stackPopUNS(pVM->pStack);
|
|
PUSHINT(FICL_BOOL(u1 < u2));
|
|
return;
|
|
}
|
|
|
|
static void isGreater(FICL_VM *pVM)
|
|
{
|
|
CELL x, y;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
y = stackPop(pVM->pStack);
|
|
x = stackPop(pVM->pStack);
|
|
PUSHINT(FICL_BOOL(x.i > y.i));
|
|
return;
|
|
}
|
|
|
|
static void bitwiseAnd(FICL_VM *pVM)
|
|
{
|
|
CELL x, y;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
x = stackPop(pVM->pStack);
|
|
y = stackPop(pVM->pStack);
|
|
PUSHINT(x.i & y.i);
|
|
return;
|
|
}
|
|
|
|
static void bitwiseOr(FICL_VM *pVM)
|
|
{
|
|
CELL x, y;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
x = stackPop(pVM->pStack);
|
|
y = stackPop(pVM->pStack);
|
|
PUSHINT(x.i | y.i);
|
|
return;
|
|
}
|
|
|
|
static void bitwiseXor(FICL_VM *pVM)
|
|
{
|
|
CELL x, y;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 1);
|
|
#endif
|
|
x = stackPop(pVM->pStack);
|
|
y = stackPop(pVM->pStack);
|
|
PUSHINT(x.i ^ y.i);
|
|
return;
|
|
}
|
|
|
|
static void bitwiseNot(FICL_VM *pVM)
|
|
{
|
|
CELL x;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
x = stackPop(pVM->pStack);
|
|
PUSHINT(~x.i);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
D o / L o o p
|
|
** do -- IMMEDIATE COMPILE ONLY
|
|
** Compiles code to initialize a loop: compile (do),
|
|
** allot space to hold the "leave" address, push a branch
|
|
** target address for the loop.
|
|
** (do) -- runtime for "do"
|
|
** pops index and limit from the p stack and moves them
|
|
** to the r stack, then skips to the loop body.
|
|
** loop -- IMMEDIATE COMPILE ONLY
|
|
** +loop
|
|
** Compiles code for the test part of a loop:
|
|
** compile (loop), resolve forward branch from "do", and
|
|
** copy "here" address to the "leave" address allotted by "do"
|
|
** i,j,k -- COMPILE ONLY
|
|
** Runtime: Push loop indices on param stack (i is innermost loop...)
|
|
** Note: each loop has three values on the return stack:
|
|
** ( R: leave limit index )
|
|
** "leave" is the absolute address of the next cell after the loop
|
|
** limit and index are the loop control variables.
|
|
** leave -- COMPILE ONLY
|
|
** Runtime: pop the loop control variables, then pop the
|
|
** "leave" address and jump (absolute) there.
|
|
**************************************************************************/
|
|
|
|
static void doCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pDoParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pDoParen));
|
|
/*
|
|
** Allot space for a pointer to the end
|
|
** of the loop - "leave" uses this...
|
|
*/
|
|
markBranch(dp, pVM, leaveTag);
|
|
dictAppendUNS(dp, 0);
|
|
/*
|
|
** Mark location of head of loop...
|
|
*/
|
|
markBranch(dp, pVM, doTag);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void doParen(FICL_VM *pVM)
|
|
{
|
|
CELL index, limit;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
index = stackPop(pVM->pStack);
|
|
limit = stackPop(pVM->pStack);
|
|
|
|
/* copy "leave" target addr to stack */
|
|
stackPushPtr(pVM->rStack, *(pVM->ip++));
|
|
stackPush(pVM->rStack, limit);
|
|
stackPush(pVM->rStack, index);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void qDoCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pQDoParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pQDoParen));
|
|
/*
|
|
** Allot space for a pointer to the end
|
|
** of the loop - "leave" uses this...
|
|
*/
|
|
markBranch(dp, pVM, leaveTag);
|
|
dictAppendUNS(dp, 0);
|
|
/*
|
|
** Mark location of head of loop...
|
|
*/
|
|
markBranch(dp, pVM, doTag);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void qDoParen(FICL_VM *pVM)
|
|
{
|
|
CELL index, limit;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
index = stackPop(pVM->pStack);
|
|
limit = stackPop(pVM->pStack);
|
|
|
|
/* copy "leave" target addr to stack */
|
|
stackPushPtr(pVM->rStack, *(pVM->ip++));
|
|
|
|
if (limit.u == index.u)
|
|
{
|
|
vmPopIP(pVM);
|
|
}
|
|
else
|
|
{
|
|
stackPush(pVM->rStack, limit);
|
|
stackPush(pVM->rStack, index);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** Runtime code to break out of a do..loop construct
|
|
** Drop the loop control variables; the branch address
|
|
** past "loop" is next on the return stack.
|
|
*/
|
|
static void leaveCo(FICL_VM *pVM)
|
|
{
|
|
/* almost unloop */
|
|
stackDrop(pVM->rStack, 2);
|
|
/* exit */
|
|
vmPopIP(pVM);
|
|
return;
|
|
}
|
|
|
|
|
|
static void unloopCo(FICL_VM *pVM)
|
|
{
|
|
stackDrop(pVM->rStack, 3);
|
|
return;
|
|
}
|
|
|
|
|
|
static void loopCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pLoopParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pLoopParen));
|
|
resolveBackBranch(dp, pVM, doTag);
|
|
resolveAbsBranch(dp, pVM, leaveTag);
|
|
return;
|
|
}
|
|
|
|
|
|
static void plusLoopCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pPLoopParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pPLoopParen));
|
|
resolveBackBranch(dp, pVM, doTag);
|
|
resolveAbsBranch(dp, pVM, leaveTag);
|
|
return;
|
|
}
|
|
|
|
|
|
static void loopParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT index = stackGetTop(pVM->rStack).i;
|
|
FICL_INT limit = stackFetch(pVM->rStack, 1).i;
|
|
|
|
index++;
|
|
|
|
if (index >= limit)
|
|
{
|
|
stackDrop(pVM->rStack, 3); /* nuke the loop indices & "leave" addr */
|
|
vmBranchRelative(pVM, 1); /* fall through the loop */
|
|
}
|
|
else
|
|
{ /* update index, branch to loop head */
|
|
stackSetTop(pVM->rStack, LVALUEtoCELL(index));
|
|
vmBranchRelative(pVM, (uintptr_t)*(pVM->ip));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void plusLoopParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT index,limit,increment;
|
|
int flag;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
index = stackGetTop(pVM->rStack).i;
|
|
limit = stackFetch(pVM->rStack, 1).i;
|
|
increment = POP().i;
|
|
|
|
index += increment;
|
|
|
|
if (increment < 0)
|
|
flag = (index < limit);
|
|
else
|
|
flag = (index >= limit);
|
|
|
|
if (flag)
|
|
{
|
|
stackDrop(pVM->rStack, 3); /* nuke the loop indices & "leave" addr */
|
|
vmBranchRelative(pVM, 1); /* fall through the loop */
|
|
}
|
|
else
|
|
{ /* update index, branch to loop head */
|
|
stackSetTop(pVM->rStack, LVALUEtoCELL(index));
|
|
vmBranchRelative(pVM, (uintptr_t)*(pVM->ip));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void loopICo(FICL_VM *pVM)
|
|
{
|
|
CELL index = stackGetTop(pVM->rStack);
|
|
stackPush(pVM->pStack, index);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void loopJCo(FICL_VM *pVM)
|
|
{
|
|
CELL index = stackFetch(pVM->rStack, 3);
|
|
stackPush(pVM->pStack, index);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void loopKCo(FICL_VM *pVM)
|
|
{
|
|
CELL index = stackFetch(pVM->rStack, 6);
|
|
stackPush(pVM->pStack, index);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
r e t u r n s t a c k
|
|
**
|
|
**************************************************************************/
|
|
static void toRStack(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
stackPush(pVM->rStack, POP());
|
|
}
|
|
|
|
static void fromRStack(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
PUSH(stackPop(pVM->rStack));
|
|
}
|
|
|
|
static void fetchRStack(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
PUSH(stackGetTop(pVM->rStack));
|
|
}
|
|
|
|
static void twoToR(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
stackRoll(pVM->pStack, 1);
|
|
stackPush(pVM->rStack, stackPop(pVM->pStack));
|
|
stackPush(pVM->rStack, stackPop(pVM->pStack));
|
|
return;
|
|
}
|
|
|
|
static void twoRFrom(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 2);
|
|
#endif
|
|
stackPush(pVM->pStack, stackPop(pVM->rStack));
|
|
stackPush(pVM->pStack, stackPop(pVM->rStack));
|
|
stackRoll(pVM->pStack, 1);
|
|
return;
|
|
}
|
|
|
|
static void twoRFetch(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 2);
|
|
#endif
|
|
stackPush(pVM->pStack, stackFetch(pVM->rStack, 1));
|
|
stackPush(pVM->pStack, stackFetch(pVM->rStack, 0));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
v a r i a b l e
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void variableParen(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *fw;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
fw = pVM->runningWord;
|
|
PUSHPTR(fw->param);
|
|
}
|
|
|
|
|
|
static void variable(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
|
|
dictAppendWord2(dp, si, variableParen, FW_DEFAULT);
|
|
dictAllotCells(dp, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoVariable(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
|
|
dictAppendWord2(dp, si, variableParen, FW_DEFAULT);
|
|
dictAllotCells(dp, 2);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
b a s e & f r i e n d s
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void base(FICL_VM *pVM)
|
|
{
|
|
CELL *pBase;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
pBase = (CELL *)(&pVM->base);
|
|
stackPush(pVM->pStack, LVALUEtoCELL(pBase));
|
|
return;
|
|
}
|
|
|
|
|
|
static void decimal(FICL_VM *pVM)
|
|
{
|
|
pVM->base = 10;
|
|
return;
|
|
}
|
|
|
|
|
|
static void hex(FICL_VM *pVM)
|
|
{
|
|
pVM->base = 16;
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
a l l o t & f r i e n d s
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void allot(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp;
|
|
FICL_INT i;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
dp = vmGetDict(pVM);
|
|
i = POPINT();
|
|
|
|
#if FICL_ROBUST
|
|
dictCheck(dp, pVM, i);
|
|
#endif
|
|
|
|
dictAllot(dp, i);
|
|
return;
|
|
}
|
|
|
|
|
|
static void here(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
dp = vmGetDict(pVM);
|
|
PUSHPTR(dp->here);
|
|
return;
|
|
}
|
|
|
|
static void comma(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp;
|
|
CELL c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
dp = vmGetDict(pVM);
|
|
c = POP();
|
|
dictAppendCell(dp, c);
|
|
return;
|
|
}
|
|
|
|
static void cComma(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp;
|
|
char c;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
dp = vmGetDict(pVM);
|
|
c = (char)POPINT();
|
|
dictAppendChar(dp, c);
|
|
return;
|
|
}
|
|
|
|
static void cells(FICL_VM *pVM)
|
|
{
|
|
FICL_INT i;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
|
|
i = POPINT();
|
|
PUSHINT(i * (FICL_INT)sizeof (CELL));
|
|
return;
|
|
}
|
|
|
|
static void cellPlus(FICL_VM *pVM)
|
|
{
|
|
char *cp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
|
|
cp = POPPTR();
|
|
PUSHPTR(cp + sizeof (CELL));
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************************
|
|
t i c k
|
|
** tick CORE ( "<spaces>name" -- xt )
|
|
** Skip leading space delimiters. Parse name delimited by a space. Find
|
|
** name and return xt, the execution token for name. An ambiguous condition
|
|
** exists if name is not found.
|
|
**************************************************************************/
|
|
void ficlTick(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pFW = NULL;
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
pFW = dictLookup(vmGetDict(pVM), si);
|
|
if (!pFW)
|
|
{
|
|
int i = SI_COUNT(si);
|
|
vmThrowErr(pVM, "%.*s not found", i, SI_PTR(si));
|
|
}
|
|
PUSHPTR(pFW);
|
|
return;
|
|
}
|
|
|
|
|
|
static void bracketTickCoIm(FICL_VM *pVM)
|
|
{
|
|
ficlTick(pVM);
|
|
literalIm(pVM);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
p o s t p o n e
|
|
** Lookup the next word in the input stream and compile code to
|
|
** insert it into definitions created by the resulting word
|
|
** (defers compilation, even of immediate words)
|
|
**************************************************************************/
|
|
|
|
static void postponeCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
FICL_WORD *pFW;
|
|
FICL_WORD *pComma = ficlLookup(pVM->pSys, ",");
|
|
assert(pComma);
|
|
|
|
ficlTick(pVM);
|
|
pFW = stackGetTop(pVM->pStack).p;
|
|
if (wordIsImmediate(pFW))
|
|
{
|
|
dictAppendCell(dp, stackPop(pVM->pStack));
|
|
}
|
|
else
|
|
{
|
|
literalIm(pVM);
|
|
dictAppendCell(dp, LVALUEtoCELL(pComma));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************************
|
|
e x e c u t e
|
|
** Pop an execution token (pointer to a word) off the stack and
|
|
** run it
|
|
**************************************************************************/
|
|
|
|
static void execute(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pFW;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
pFW = stackPopPtr(pVM->pStack);
|
|
vmExecute(pVM, pFW);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
i m m e d i a t e
|
|
** Make the most recently compiled word IMMEDIATE -- it executes even
|
|
** in compile state (most often used for control compiling words
|
|
** such as IF, THEN, etc)
|
|
**************************************************************************/
|
|
|
|
static void immediate(FICL_VM *pVM)
|
|
{
|
|
IGNORE(pVM);
|
|
dictSetImmediate(vmGetDict(pVM));
|
|
return;
|
|
}
|
|
|
|
|
|
static void compileOnly(FICL_VM *pVM)
|
|
{
|
|
IGNORE(pVM);
|
|
dictSetFlags(vmGetDict(pVM), FW_COMPILE, 0);
|
|
return;
|
|
}
|
|
|
|
|
|
static void setObjectFlag(FICL_VM *pVM)
|
|
{
|
|
IGNORE(pVM);
|
|
dictSetFlags(vmGetDict(pVM), FW_ISOBJECT, 0);
|
|
return;
|
|
}
|
|
|
|
static void isObject(FICL_VM *pVM)
|
|
{
|
|
int flag;
|
|
FICL_WORD *pFW = (FICL_WORD *)stackPopPtr(pVM->pStack);
|
|
|
|
flag = ((pFW != NULL) && (pFW->flags & FW_ISOBJECT)) ? FICL_TRUE : FICL_FALSE;
|
|
stackPushINT(pVM->pStack, flag);
|
|
return;
|
|
}
|
|
|
|
static void cstringLit(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp = (FICL_STRING *)(pVM->ip);
|
|
|
|
char *cp = sp->text;
|
|
cp += sp->count + 1;
|
|
cp = alignPtr(cp);
|
|
pVM->ip = (IPTYPE)(void *)cp;
|
|
|
|
stackPushPtr(pVM->pStack, sp);
|
|
return;
|
|
}
|
|
|
|
|
|
static void cstringQuoteIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
if (pVM->state == INTERPRET)
|
|
{
|
|
FICL_STRING *sp = (FICL_STRING *) dp->here;
|
|
vmGetString(pVM, sp, '\"');
|
|
stackPushPtr(pVM->pStack, sp);
|
|
/* move HERE past string so it doesn't get overwritten. --lch */
|
|
dictAllot(dp, sp->count + sizeof(FICL_COUNT));
|
|
}
|
|
else /* COMPILE state */
|
|
{
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pCStringLit));
|
|
dp->here = PTRtoCELL vmGetString(pVM, (FICL_STRING *)dp->here, '\"');
|
|
dictAlign(dp);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
d o t Q u o t e
|
|
** IMMEDIATE word that compiles a string literal for later display
|
|
** Compile stringLit, then copy the bytes of the string from the TIB
|
|
** to the dictionary. Backpatch the count byte and align the dictionary.
|
|
**
|
|
** stringlit: Fetch the count from the dictionary, then push the address
|
|
** and count on the stack. Finally, update ip to point to the first
|
|
** aligned address after the string text.
|
|
**************************************************************************/
|
|
|
|
static void stringLit(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
FICL_COUNT count;
|
|
char *cp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 2);
|
|
#endif
|
|
|
|
sp = (FICL_STRING *)(pVM->ip);
|
|
count = sp->count;
|
|
cp = sp->text;
|
|
PUSHPTR(cp);
|
|
PUSHUNS(count);
|
|
cp += count + 1;
|
|
cp = alignPtr(cp);
|
|
pVM->ip = (IPTYPE)(void *)cp;
|
|
}
|
|
|
|
static void dotQuoteCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
FICL_WORD *pType = ficlLookup(pVM->pSys, "type");
|
|
assert(pType);
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pStringLit));
|
|
dp->here = PTRtoCELL vmGetString(pVM, (FICL_STRING *)dp->here, '\"');
|
|
dictAlign(dp);
|
|
dictAppendCell(dp, LVALUEtoCELL(pType));
|
|
return;
|
|
}
|
|
|
|
|
|
static void dotParen(FICL_VM *pVM)
|
|
{
|
|
char *pSrc = vmGetInBuf(pVM);
|
|
char *pEnd = vmGetInBufEnd(pVM);
|
|
char *pDest = pVM->pad;
|
|
char ch;
|
|
|
|
/*
|
|
** Note: the standard does not want leading spaces skipped (apparently)
|
|
*/
|
|
for (ch = *pSrc; (pEnd != pSrc) && (ch != ')'); ch = *++pSrc)
|
|
*pDest++ = ch;
|
|
|
|
*pDest = '\0';
|
|
if ((pEnd != pSrc) && (ch == ')'))
|
|
pSrc++;
|
|
|
|
vmTextOut(pVM, pVM->pad, 0);
|
|
vmUpdateTib(pVM, pSrc);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s l i t e r a l
|
|
** STRING
|
|
** Interpretation: Interpretation semantics for this word are undefined.
|
|
** Compilation: ( c-addr1 u -- )
|
|
** Append the run-time semantics given below to the current definition.
|
|
** Run-time: ( -- c-addr2 u )
|
|
** Return c-addr2 u describing a string consisting of the characters
|
|
** specified by c-addr1 u during compilation. A program shall not alter
|
|
** the returned string.
|
|
**************************************************************************/
|
|
static void sLiteralCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp;
|
|
char *cp, *cpDest;
|
|
FICL_UNS u;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 0);
|
|
#endif
|
|
|
|
dp = vmGetDict(pVM);
|
|
u = POPUNS();
|
|
cp = POPPTR();
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pStringLit));
|
|
cpDest = (char *) dp->here;
|
|
*cpDest++ = (char) u;
|
|
|
|
for (; u > 0; --u)
|
|
{
|
|
*cpDest++ = *cp++;
|
|
}
|
|
|
|
*cpDest++ = 0;
|
|
dp->here = PTRtoCELL alignPtr(cpDest);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s t a t e
|
|
** Return the address of the VM's state member (must be sized the
|
|
** same as a CELL for this reason)
|
|
**************************************************************************/
|
|
static void state(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
PUSHPTR(&pVM->state);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
c r e a t e . . . d o e s >
|
|
** Make a new word in the dictionary with the run-time effect of
|
|
** a variable (push my address), but with extra space allotted
|
|
** for use by does> .
|
|
**************************************************************************/
|
|
|
|
static void createParen(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
pCell = pVM->runningWord->param;
|
|
PUSHPTR(pCell+1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void create(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
|
|
dictCheckThreshold(dp);
|
|
|
|
dictAppendWord2(dp, si, createParen, FW_DEFAULT);
|
|
dictAllotCells(dp, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
static void doDoes(FICL_VM *pVM)
|
|
{
|
|
CELL *pCell;
|
|
IPTYPE tempIP;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
|
|
pCell = pVM->runningWord->param;
|
|
tempIP = (IPTYPE)((*pCell).p);
|
|
PUSHPTR(pCell+1);
|
|
vmPushIP(pVM, tempIP);
|
|
return;
|
|
}
|
|
|
|
|
|
static void doesParen(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
dp->smudge->code = doDoes;
|
|
dp->smudge->param[0] = LVALUEtoCELL(pVM->ip);
|
|
vmPopIP(pVM);
|
|
return;
|
|
}
|
|
|
|
|
|
static void doesCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
#if FICL_WANT_LOCALS
|
|
assert(pVM->pSys->pUnLinkParen);
|
|
if (pVM->pSys->nLocals > 0)
|
|
{
|
|
FICL_DICT *pLoc = ficlGetLoc(pVM->pSys);
|
|
dictEmpty(pLoc, pLoc->pForthWords->size);
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pUnLinkParen));
|
|
}
|
|
|
|
pVM->pSys->nLocals = 0;
|
|
#endif
|
|
IGNORE(pVM);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pDoesParen));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
t o b o d y
|
|
** to-body CORE ( xt -- a-addr )
|
|
** a-addr is the data-field address corresponding to xt. An ambiguous
|
|
** condition exists if xt is not for a word defined via CREATE.
|
|
**************************************************************************/
|
|
static void toBody(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pFW;
|
|
/*#$-GUY CHANGE: Added robustness.-$#*/
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
|
|
pFW = POPPTR();
|
|
PUSHPTR(pFW->param + 1);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** from-body ficl ( a-addr -- xt )
|
|
** Reverse effect of >body
|
|
*/
|
|
static void fromBody(FICL_VM *pVM)
|
|
{
|
|
char *ptr;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
|
|
ptr = (char *)POPPTR() - sizeof (FICL_WORD);
|
|
PUSHPTR(ptr);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** >name ficl ( xt -- c-addr u )
|
|
** Push the address and length of a word's name given its address
|
|
** xt.
|
|
*/
|
|
static void toName(FICL_VM *pVM)
|
|
{
|
|
FICL_WORD *pFW;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 2);
|
|
#endif
|
|
|
|
pFW = POPPTR();
|
|
PUSHPTR(pFW->name);
|
|
PUSHUNS(pFW->nName);
|
|
return;
|
|
}
|
|
|
|
|
|
static void getLastWord(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *pDict = vmGetDict(pVM);
|
|
FICL_WORD *wp = pDict->smudge;
|
|
assert(wp);
|
|
vmPush(pVM, LVALUEtoCELL(wp));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
l b r a c k e t e t c
|
|
**
|
|
**************************************************************************/
|
|
|
|
static void lbracketCoIm(FICL_VM *pVM)
|
|
{
|
|
pVM->state = INTERPRET;
|
|
return;
|
|
}
|
|
|
|
|
|
static void rbracket(FICL_VM *pVM)
|
|
{
|
|
pVM->state = COMPILE;
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
p i c t u r e d n u m e r i c w o r d s
|
|
**
|
|
** less-number-sign CORE ( -- )
|
|
** Initialize the pictured numeric output conversion process.
|
|
** (clear the pad)
|
|
**************************************************************************/
|
|
static void lessNumberSign(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp = PTRtoSTRING pVM->pad;
|
|
sp->count = 0;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** number-sign CORE ( ud1 -- ud2 )
|
|
** Divide ud1 by the number in BASE giving the quotient ud2 and the remainder
|
|
** n. (n is the least-significant digit of ud1.) Convert n to external form
|
|
** and add the resulting character to the beginning of the pictured numeric
|
|
** output string. An ambiguous condition exists if # executes outside of a
|
|
** <# #> delimited number conversion.
|
|
*/
|
|
static void numberSign(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
DPUNS u;
|
|
UNS16 rem;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 2);
|
|
#endif
|
|
|
|
sp = PTRtoSTRING pVM->pad;
|
|
u = u64Pop(pVM->pStack);
|
|
rem = m64UMod(&u, (UNS16)(pVM->base));
|
|
sp->text[sp->count++] = digit_to_char(rem);
|
|
u64Push(pVM->pStack, u);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** number-sign-greater CORE ( xd -- c-addr u )
|
|
** Drop xd. Make the pictured numeric output string available as a character
|
|
** string. c-addr and u specify the resulting character string. A program
|
|
** may replace characters within the string.
|
|
*/
|
|
static void numberSignGreater(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 2);
|
|
#endif
|
|
|
|
sp = PTRtoSTRING pVM->pad;
|
|
sp->text[sp->count] = 0;
|
|
strrev(sp->text);
|
|
DROP(2);
|
|
PUSHPTR(sp->text);
|
|
PUSHUNS(sp->count);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** number-sign-s CORE ( ud1 -- ud2 )
|
|
** Convert one digit of ud1 according to the rule for #. Continue conversion
|
|
** until the quotient is zero. ud2 is zero. An ambiguous condition exists if
|
|
** #S executes outside of a <# #> delimited number conversion.
|
|
** TO DO: presently does not use ud1 hi cell - use it!
|
|
*/
|
|
static void numberSignS(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
DPUNS u;
|
|
UNS16 rem;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 2, 2);
|
|
#endif
|
|
|
|
sp = PTRtoSTRING pVM->pad;
|
|
u = u64Pop(pVM->pStack);
|
|
|
|
do
|
|
{
|
|
rem = m64UMod(&u, (UNS16)(pVM->base));
|
|
sp->text[sp->count++] = digit_to_char(rem);
|
|
}
|
|
while (u.hi || u.lo);
|
|
|
|
u64Push(pVM->pStack, u);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** HOLD CORE ( char -- )
|
|
** Add char to the beginning of the pictured numeric output string. An ambiguous
|
|
** condition exists if HOLD executes outside of a <# #> delimited number conversion.
|
|
*/
|
|
static void hold(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
int i;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
sp = PTRtoSTRING pVM->pad;
|
|
i = POPINT();
|
|
sp->text[sp->count++] = (char) i;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** SIGN CORE ( n -- )
|
|
** If n is negative, add a minus sign to the beginning of the pictured
|
|
** numeric output string. An ambiguous condition exists if SIGN
|
|
** executes outside of a <# #> delimited number conversion.
|
|
*/
|
|
static void sign(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
int i;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
|
|
sp = PTRtoSTRING pVM->pad;
|
|
i = POPINT();
|
|
if (i < 0)
|
|
sp->text[sp->count++] = '-';
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
t o N u m b e r
|
|
** to-number CORE ( ud1 c-addr1 u1 -- ud2 c-addr2 u2 )
|
|
** ud2 is the unsigned result of converting the characters within the
|
|
** string specified by c-addr1 u1 into digits, using the number in BASE,
|
|
** and adding each into ud1 after multiplying ud1 by the number in BASE.
|
|
** Conversion continues left-to-right until a character that is not
|
|
** convertible, including any + or -, is encountered or the string is
|
|
** entirely converted. c-addr2 is the location of the first unconverted
|
|
** character or the first character past the end of the string if the string
|
|
** was entirely converted. u2 is the number of unconverted characters in the
|
|
** string. An ambiguous condition exists if ud2 overflows during the
|
|
** conversion.
|
|
**************************************************************************/
|
|
static void toNumber(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS count;
|
|
char *cp;
|
|
DPUNS accum;
|
|
FICL_UNS base = pVM->base;
|
|
FICL_UNS ch;
|
|
FICL_UNS digit;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,4,4);
|
|
#endif
|
|
|
|
count = POPUNS();
|
|
cp = (char *)POPPTR();
|
|
accum = u64Pop(pVM->pStack);
|
|
|
|
for (ch = *cp; count > 0; ch = *++cp, count--)
|
|
{
|
|
if (ch < '0')
|
|
break;
|
|
|
|
digit = ch - '0';
|
|
|
|
if (digit > 9)
|
|
digit = tolower(ch) - 'a' + 10;
|
|
/*
|
|
** Note: following test also catches chars between 9 and a
|
|
** because 'digit' is unsigned!
|
|
*/
|
|
if (digit >= base)
|
|
break;
|
|
|
|
accum = m64Mac(accum, base, digit);
|
|
}
|
|
|
|
u64Push(pVM->pStack, accum);
|
|
PUSHPTR(cp);
|
|
PUSHUNS(count);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************************
|
|
q u i t & a b o r t
|
|
** quit CORE ( -- ) ( R: i*x -- )
|
|
** Empty the return stack, store zero in SOURCE-ID if it is present, make
|
|
** the user input device the input source, and enter interpretation state.
|
|
** Do not display a message. Repeat the following:
|
|
**
|
|
** Accept a line from the input source into the input buffer, set >IN to
|
|
** zero, and interpret.
|
|
** Display the implementation-defined system prompt if in
|
|
** interpretation state, all processing has been completed, and no
|
|
** ambiguous condition exists.
|
|
**************************************************************************/
|
|
|
|
static void quit(FICL_VM *pVM)
|
|
{
|
|
vmThrow(pVM, VM_QUIT);
|
|
return;
|
|
}
|
|
|
|
|
|
static void ficlAbort(FICL_VM *pVM)
|
|
{
|
|
vmThrow(pVM, VM_ABORT);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
a c c e p t
|
|
** accept CORE ( c-addr +n1 -- +n2 )
|
|
** Receive a string of at most +n1 characters. An ambiguous condition
|
|
** exists if +n1 is zero or greater than 32,767. Display graphic characters
|
|
** as they are received. A program that depends on the presence or absence
|
|
** of non-graphic characters in the string has an environmental dependency.
|
|
** The editing functions, if any, that the system performs in order to
|
|
** construct the string are implementation-defined.
|
|
**
|
|
** (Although the standard text doesn't say so, I assume that the intent
|
|
** of 'accept' is to store the string at the address specified on
|
|
** the stack.)
|
|
** Implementation: if there's more text in the TIB, use it. Otherwise
|
|
** throw out for more text. Copy characters up to the max count into the
|
|
** address given, and return the number of actual characters copied.
|
|
**
|
|
** Note (sobral) this may not be the behavior you'd expect if you're
|
|
** trying to get user input at load time!
|
|
**************************************************************************/
|
|
static void accept(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS count, len;
|
|
char *cp;
|
|
char *pBuf, *pEnd;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
pBuf = vmGetInBuf(pVM);
|
|
pEnd = vmGetInBufEnd(pVM);
|
|
len = pEnd - pBuf;
|
|
if (len == 0)
|
|
vmThrow(pVM, VM_RESTART);
|
|
|
|
/*
|
|
** Now we have something in the text buffer - use it
|
|
*/
|
|
count = stackPopINT(pVM->pStack);
|
|
cp = stackPopPtr(pVM->pStack);
|
|
|
|
len = (count < len) ? count : len;
|
|
strncpy(cp, vmGetInBuf(pVM), len);
|
|
pBuf += len;
|
|
vmUpdateTib(pVM, pBuf);
|
|
PUSHINT(len);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
a l i g n
|
|
** 6.1.0705 ALIGN CORE ( -- )
|
|
** If the data-space pointer is not aligned, reserve enough space to
|
|
** align it.
|
|
**************************************************************************/
|
|
static void align(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
IGNORE(pVM);
|
|
dictAlign(dp);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
a l i g n e d
|
|
**
|
|
**************************************************************************/
|
|
static void aligned(FICL_VM *pVM)
|
|
{
|
|
void *addr;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,1);
|
|
#endif
|
|
|
|
addr = POPPTR();
|
|
PUSHPTR(alignPtr(addr));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
b e g i n & f r i e n d s
|
|
** Indefinite loop control structures
|
|
** A.6.1.0760 BEGIN
|
|
** Typical use:
|
|
** : X ... BEGIN ... test UNTIL ;
|
|
** or
|
|
** : X ... BEGIN ... test WHILE ... REPEAT ;
|
|
**************************************************************************/
|
|
static void beginCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
markBranch(dp, pVM, destTag);
|
|
return;
|
|
}
|
|
|
|
static void untilCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pIfParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pIfParen));
|
|
resolveBackBranch(dp, pVM, destTag);
|
|
return;
|
|
}
|
|
|
|
static void whileCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pIfParen);
|
|
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pIfParen));
|
|
markBranch(dp, pVM, origTag);
|
|
twoSwap(pVM);
|
|
dictAppendUNS(dp, 1);
|
|
return;
|
|
}
|
|
|
|
static void repeatCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pBranchParen);
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pBranchParen));
|
|
|
|
/* expect "begin" branch marker */
|
|
resolveBackBranch(dp, pVM, destTag);
|
|
/* expect "while" branch marker */
|
|
resolveForwardBranch(dp, pVM, origTag);
|
|
return;
|
|
}
|
|
|
|
|
|
static void againCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
assert(pVM->pSys->pBranchParen);
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pBranchParen));
|
|
|
|
/* expect "begin" branch marker */
|
|
resolveBackBranch(dp, pVM, destTag);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
c h a r & f r i e n d s
|
|
** 6.1.0895 CHAR CORE ( "<spaces>name" -- char )
|
|
** Skip leading space delimiters. Parse name delimited by a space.
|
|
** Put the value of its first character onto the stack.
|
|
**
|
|
** bracket-char CORE
|
|
** Interpretation: Interpretation semantics for this word are undefined.
|
|
** Compilation: ( "<spaces>name" -- )
|
|
** Skip leading space delimiters. Parse name delimited by a space.
|
|
** Append the run-time semantics given below to the current definition.
|
|
** Run-time: ( -- char )
|
|
** Place char, the value of the first character of name, on the stack.
|
|
**************************************************************************/
|
|
static void ficlChar(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,0,1);
|
|
#endif
|
|
|
|
si = vmGetWord(pVM);
|
|
PUSHUNS((FICL_UNS)(si.cp[0]));
|
|
return;
|
|
}
|
|
|
|
static void charCoIm(FICL_VM *pVM)
|
|
{
|
|
ficlChar(pVM);
|
|
literalIm(pVM);
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
c h a r P l u s
|
|
** char-plus CORE ( c-addr1 -- c-addr2 )
|
|
** Add the size in address units of a character to c-addr1, giving c-addr2.
|
|
**************************************************************************/
|
|
static void charPlus(FICL_VM *pVM)
|
|
{
|
|
char *cp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,1);
|
|
#endif
|
|
|
|
cp = POPPTR();
|
|
PUSHPTR(cp + 1);
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
c h a r s
|
|
** chars CORE ( n1 -- n2 )
|
|
** n2 is the size in address units of n1 characters.
|
|
** For most processors, this function can be a no-op. To guarantee
|
|
** portability, we'll multiply by sizeof (char).
|
|
**************************************************************************/
|
|
#if defined (_M_IX86)
|
|
#pragma warning(disable: 4127)
|
|
#endif
|
|
static void ficlChars(FICL_VM *pVM)
|
|
{
|
|
if (sizeof (char) > 1)
|
|
{
|
|
FICL_INT i;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,1);
|
|
#endif
|
|
i = POPINT();
|
|
PUSHINT(i * sizeof (char));
|
|
}
|
|
/* otherwise no-op! */
|
|
return;
|
|
}
|
|
#if defined (_M_IX86)
|
|
#pragma warning(default: 4127)
|
|
#endif
|
|
|
|
|
|
/**************************************************************************
|
|
c o u n t
|
|
** COUNT CORE ( c-addr1 -- c-addr2 u )
|
|
** Return the character string specification for the counted string stored
|
|
** at c-addr1. c-addr2 is the address of the first character after c-addr1.
|
|
** u is the contents of the character at c-addr1, which is the length in
|
|
** characters of the string at c-addr2.
|
|
**************************************************************************/
|
|
static void count(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,2);
|
|
#endif
|
|
|
|
sp = POPPTR();
|
|
PUSHPTR(sp->text);
|
|
PUSHUNS(sp->count);
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
e n v i r o n m e n t ?
|
|
** environment-query CORE ( c-addr u -- false | i*x true )
|
|
** c-addr is the address of a character string and u is the string's
|
|
** character count. u may have a value in the range from zero to an
|
|
** implementation-defined maximum which shall not be less than 31. The
|
|
** character string should contain a keyword from 3.2.6 Environmental
|
|
** queries or the optional word sets to be checked for correspondence
|
|
** with an attribute of the present environment. If the system treats the
|
|
** attribute as unknown, the returned flag is false; otherwise, the flag
|
|
** is true and the i*x returned is of the type specified in the table for
|
|
** the attribute queried.
|
|
**************************************************************************/
|
|
static void environmentQ(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *envp;
|
|
FICL_WORD *pFW;
|
|
STRINGINFO si;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
envp = pVM->pSys->envp;
|
|
si.count = (FICL_COUNT)stackPopUNS(pVM->pStack);
|
|
si.cp = stackPopPtr(pVM->pStack);
|
|
|
|
pFW = dictLookup(envp, si);
|
|
|
|
if (pFW != NULL)
|
|
{
|
|
vmExecute(pVM, pFW);
|
|
PUSHINT(FICL_TRUE);
|
|
}
|
|
else
|
|
{
|
|
PUSHINT(FICL_FALSE);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
e v a l u a t e
|
|
** EVALUATE CORE ( i*x c-addr u -- j*x )
|
|
** Save the current input source specification. Store minus-one (-1) in
|
|
** SOURCE-ID if it is present. Make the string described by c-addr and u
|
|
** both the input source and input buffer, set >IN to zero, and interpret.
|
|
** When the parse area is empty, restore the prior input source
|
|
** specification. Other stack effects are due to the words EVALUATEd.
|
|
**
|
|
**************************************************************************/
|
|
static void evaluate(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS count;
|
|
char *cp;
|
|
CELL id;
|
|
int result;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,0);
|
|
#endif
|
|
|
|
count = POPUNS();
|
|
cp = POPPTR();
|
|
|
|
IGNORE(count);
|
|
id = pVM->sourceID;
|
|
pVM->sourceID.i = -1;
|
|
result = ficlExecC(pVM, cp, count);
|
|
pVM->sourceID = id;
|
|
if (result != VM_OUTOFTEXT)
|
|
vmThrow(pVM, result);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s t r i n g q u o t e
|
|
** Interpreting: get string delimited by a quote from the input stream,
|
|
** copy to a scratch area, and put its count and address on the stack.
|
|
** Compiling: compile code to push the address and count of a string
|
|
** literal, compile the string from the input stream, and align the dict
|
|
** pointer.
|
|
**************************************************************************/
|
|
static void stringQuoteIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
|
|
if (pVM->state == INTERPRET)
|
|
{
|
|
FICL_STRING *sp = (FICL_STRING *) dp->here;
|
|
vmGetString(pVM, sp, '\"');
|
|
PUSHPTR(sp->text);
|
|
PUSHUNS(sp->count);
|
|
}
|
|
else /* COMPILE state */
|
|
{
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pStringLit));
|
|
dp->here = PTRtoCELL vmGetString(pVM, (FICL_STRING *)dp->here, '\"');
|
|
dictAlign(dp);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
t y p e
|
|
** Pop count and char address from stack and print the designated string.
|
|
**************************************************************************/
|
|
static void type(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS count = stackPopUNS(pVM->pStack);
|
|
char *cp = stackPopPtr(pVM->pStack);
|
|
char *pDest = (char *)ficlMalloc(count + 1);
|
|
|
|
/*
|
|
** Since we don't have an output primitive for a counted string
|
|
** (oops), make sure the string is null terminated. If not, copy
|
|
** and terminate it.
|
|
*/
|
|
if (!pDest)
|
|
vmThrowErr(pVM, "Error: out of memory");
|
|
|
|
strncpy(pDest, cp, count);
|
|
pDest[count] = '\0';
|
|
|
|
vmTextOut(pVM, pDest, 0);
|
|
|
|
ficlFree(pDest);
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
w o r d
|
|
** word CORE ( char "<chars>ccc<char>" -- c-addr )
|
|
** Skip leading delimiters. Parse characters ccc delimited by char. An
|
|
** ambiguous condition exists if the length of the parsed string is greater
|
|
** than the implementation-defined length of a counted string.
|
|
**
|
|
** c-addr is the address of a transient region containing the parsed word
|
|
** as a counted string. If the parse area was empty or contained no
|
|
** characters other than the delimiter, the resulting string has a zero
|
|
** length. A space, not included in the length, follows the string. A
|
|
** program may replace characters within the string.
|
|
** NOTE! Ficl also NULL-terminates the dest string.
|
|
**************************************************************************/
|
|
static void ficlWord(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
char delim;
|
|
STRINGINFO si;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,1);
|
|
#endif
|
|
|
|
sp = (FICL_STRING *)pVM->pad;
|
|
delim = (char)POPINT();
|
|
si = vmParseStringEx(pVM, delim, 1);
|
|
|
|
if (SI_COUNT(si) > nPAD-1)
|
|
SI_SETLEN(si, nPAD-1);
|
|
|
|
sp->count = (FICL_COUNT)SI_COUNT(si);
|
|
strncpy(sp->text, SI_PTR(si), SI_COUNT(si));
|
|
/*#$-GUY CHANGE: I added this.-$#*/
|
|
sp->text[sp->count] = 0;
|
|
strcat(sp->text, " ");
|
|
|
|
PUSHPTR(sp);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
p a r s e - w o r d
|
|
** ficl PARSE-WORD ( <spaces>name -- c-addr u )
|
|
** Skip leading spaces and parse name delimited by a space. c-addr is the
|
|
** address within the input buffer and u is the length of the selected
|
|
** string. If the parse area is empty, the resulting string has a zero length.
|
|
**************************************************************************/
|
|
static void parseNoCopy(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,0,2);
|
|
#endif
|
|
|
|
si = vmGetWord0(pVM);
|
|
PUSHPTR(SI_PTR(si));
|
|
PUSHUNS(SI_COUNT(si));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
p a r s e
|
|
** CORE EXT ( char "ccc<char>" -- c-addr u )
|
|
** Parse ccc delimited by the delimiter char.
|
|
** c-addr is the address (within the input buffer) and u is the length of
|
|
** the parsed string. If the parse area was empty, the resulting string has
|
|
** a zero length.
|
|
** NOTE! PARSE differs from WORD: it does not skip leading delimiters.
|
|
**************************************************************************/
|
|
static void parse(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
char delim;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,2);
|
|
#endif
|
|
|
|
delim = (char)POPINT();
|
|
|
|
si = vmParseStringEx(pVM, delim, 0);
|
|
PUSHPTR(SI_PTR(si));
|
|
PUSHUNS(SI_COUNT(si));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
f i l l
|
|
** CORE ( c-addr u char -- )
|
|
** If u is greater than zero, store char in each of u consecutive
|
|
** characters of memory beginning at c-addr.
|
|
**************************************************************************/
|
|
static void fill(FICL_VM *pVM)
|
|
{
|
|
char ch;
|
|
FICL_UNS u;
|
|
char *cp;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,3,0);
|
|
#endif
|
|
ch = (char)POPINT();
|
|
u = POPUNS();
|
|
cp = (char *)POPPTR();
|
|
|
|
while (u > 0)
|
|
{
|
|
*cp++ = ch;
|
|
u--;
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
f i n d
|
|
** FIND CORE ( c-addr -- c-addr 0 | xt 1 | xt -1 )
|
|
** Find the definition named in the counted string at c-addr. If the
|
|
** definition is not found, return c-addr and zero. If the definition is
|
|
** found, return its execution token xt. If the definition is immediate,
|
|
** also return one (1), otherwise also return minus-one (-1). For a given
|
|
** string, the values returned by FIND while compiling may differ from
|
|
** those returned while not compiling.
|
|
**************************************************************************/
|
|
static void do_find(FICL_VM *pVM, STRINGINFO si, void *returnForFailure)
|
|
{
|
|
FICL_WORD *pFW;
|
|
|
|
pFW = dictLookup(vmGetDict(pVM), si);
|
|
if (pFW)
|
|
{
|
|
PUSHPTR(pFW);
|
|
PUSHINT((wordIsImmediate(pFW) ? 1 : -1));
|
|
}
|
|
else
|
|
{
|
|
PUSHPTR(returnForFailure);
|
|
PUSHUNS(0);
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************************
|
|
f i n d
|
|
** FIND CORE ( c-addr -- c-addr 0 | xt 1 | xt -1 )
|
|
** Find the definition named in the counted string at c-addr. If the
|
|
** definition is not found, return c-addr and zero. If the definition is
|
|
** found, return its execution token xt. If the definition is immediate,
|
|
** also return one (1), otherwise also return minus-one (-1). For a given
|
|
** string, the values returned by FIND while compiling may differ from
|
|
** those returned while not compiling.
|
|
**************************************************************************/
|
|
static void cFind(FICL_VM *pVM)
|
|
{
|
|
FICL_STRING *sp;
|
|
STRINGINFO si;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,2);
|
|
#endif
|
|
sp = POPPTR();
|
|
SI_PFS(si, sp);
|
|
do_find(pVM, si, sp);
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************************
|
|
s f i n d
|
|
** FICL ( c-addr u -- 0 0 | xt 1 | xt -1 )
|
|
** Like FIND, but takes "c-addr u" for the string.
|
|
**************************************************************************/
|
|
static void sFind(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,2);
|
|
#endif
|
|
|
|
si.count = stackPopINT(pVM->pStack);
|
|
si.cp = stackPopPtr(pVM->pStack);
|
|
|
|
do_find(pVM, si, NULL);
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************************
|
|
f m S l a s h M o d
|
|
** f-m-slash-mod CORE ( d1 n1 -- n2 n3 )
|
|
** Divide d1 by n1, giving the floored quotient n3 and the remainder n2.
|
|
** Input and output stack arguments are signed. An ambiguous condition
|
|
** exists if n1 is zero or if the quotient lies outside the range of a
|
|
** single-cell signed integer.
|
|
**************************************************************************/
|
|
static void fmSlashMod(FICL_VM *pVM)
|
|
{
|
|
DPINT d1;
|
|
FICL_INT n1;
|
|
INTQR qr;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,3,2);
|
|
#endif
|
|
|
|
n1 = POPINT();
|
|
d1 = i64Pop(pVM->pStack);
|
|
qr = m64FlooredDivI(d1, n1);
|
|
PUSHINT(qr.rem);
|
|
PUSHINT(qr.quot);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s m S l a s h R e m
|
|
** s-m-slash-rem CORE ( d1 n1 -- n2 n3 )
|
|
** Divide d1 by n1, giving the symmetric quotient n3 and the remainder n2.
|
|
** Input and output stack arguments are signed. An ambiguous condition
|
|
** exists if n1 is zero or if the quotient lies outside the range of a
|
|
** single-cell signed integer.
|
|
**************************************************************************/
|
|
static void smSlashRem(FICL_VM *pVM)
|
|
{
|
|
DPINT d1;
|
|
FICL_INT n1;
|
|
INTQR qr;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,3,2);
|
|
#endif
|
|
|
|
n1 = POPINT();
|
|
d1 = i64Pop(pVM->pStack);
|
|
qr = m64SymmetricDivI(d1, n1);
|
|
PUSHINT(qr.rem);
|
|
PUSHINT(qr.quot);
|
|
return;
|
|
}
|
|
|
|
|
|
static void ficlMod(FICL_VM *pVM)
|
|
{
|
|
DPINT d1;
|
|
FICL_INT n1;
|
|
INTQR qr;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
n1 = POPINT();
|
|
d1.lo = POPINT();
|
|
i64Extend(d1);
|
|
qr = m64SymmetricDivI(d1, n1);
|
|
PUSHINT(qr.rem);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
u m S l a s h M o d
|
|
** u-m-slash-mod CORE ( ud u1 -- u2 u3 )
|
|
** Divide ud by u1, giving the quotient u3 and the remainder u2.
|
|
** All values and arithmetic are unsigned. An ambiguous condition
|
|
** exists if u1 is zero or if the quotient lies outside the range of a
|
|
** single-cell unsigned integer.
|
|
*************************************************************************/
|
|
static void umSlashMod(FICL_VM *pVM)
|
|
{
|
|
DPUNS ud;
|
|
FICL_UNS u1;
|
|
UNSQR qr;
|
|
|
|
u1 = stackPopUNS(pVM->pStack);
|
|
ud = u64Pop(pVM->pStack);
|
|
qr = ficlLongDiv(ud, u1);
|
|
PUSHUNS(qr.rem);
|
|
PUSHUNS(qr.quot);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
l s h i f t
|
|
** l-shift CORE ( x1 u -- x2 )
|
|
** Perform a logical left shift of u bit-places on x1, giving x2.
|
|
** Put zeroes into the least significant bits vacated by the shift.
|
|
** An ambiguous condition exists if u is greater than or equal to the
|
|
** number of bits in a cell.
|
|
**
|
|
** r-shift CORE ( x1 u -- x2 )
|
|
** Perform a logical right shift of u bit-places on x1, giving x2.
|
|
** Put zeroes into the most significant bits vacated by the shift. An
|
|
** ambiguous condition exists if u is greater than or equal to the
|
|
** number of bits in a cell.
|
|
**************************************************************************/
|
|
static void lshift(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS nBits;
|
|
FICL_UNS x1;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
nBits = POPUNS();
|
|
x1 = POPUNS();
|
|
PUSHUNS(x1 << nBits);
|
|
return;
|
|
}
|
|
|
|
|
|
static void rshift(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS nBits;
|
|
FICL_UNS x1;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
nBits = POPUNS();
|
|
x1 = POPUNS();
|
|
|
|
PUSHUNS(x1 >> nBits);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
m S t a r
|
|
** m-star CORE ( n1 n2 -- d )
|
|
** d is the signed product of n1 times n2.
|
|
**************************************************************************/
|
|
static void mStar(FICL_VM *pVM)
|
|
{
|
|
FICL_INT n2;
|
|
FICL_INT n1;
|
|
DPINT d;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,2);
|
|
#endif
|
|
|
|
n2 = POPINT();
|
|
n1 = POPINT();
|
|
|
|
d = m64MulI(n1, n2);
|
|
i64Push(pVM->pStack, d);
|
|
return;
|
|
}
|
|
|
|
|
|
static void umStar(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS u2;
|
|
FICL_UNS u1;
|
|
DPUNS ud;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,2);
|
|
#endif
|
|
|
|
u2 = POPUNS();
|
|
u1 = POPUNS();
|
|
|
|
ud = ficlLongMul(u1, u2);
|
|
u64Push(pVM->pStack, ud);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
m a x & m i n
|
|
**
|
|
**************************************************************************/
|
|
static void ficlMax(FICL_VM *pVM)
|
|
{
|
|
FICL_INT n2;
|
|
FICL_INT n1;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
n2 = POPINT();
|
|
n1 = POPINT();
|
|
|
|
PUSHINT((n1 > n2) ? n1 : n2);
|
|
return;
|
|
}
|
|
|
|
static void ficlMin(FICL_VM *pVM)
|
|
{
|
|
FICL_INT n2;
|
|
FICL_INT n1;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,1);
|
|
#endif
|
|
|
|
n2 = POPINT();
|
|
n1 = POPINT();
|
|
|
|
PUSHINT((n1 < n2) ? n1 : n2);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
m o v e
|
|
** CORE ( addr1 addr2 u -- )
|
|
** If u is greater than zero, copy the contents of u consecutive address
|
|
** units at addr1 to the u consecutive address units at addr2. After MOVE
|
|
** completes, the u consecutive address units at addr2 contain exactly
|
|
** what the u consecutive address units at addr1 contained before the move.
|
|
** NOTE! This implementation assumes that a char is the same size as
|
|
** an address unit.
|
|
**************************************************************************/
|
|
static void move(FICL_VM *pVM)
|
|
{
|
|
FICL_UNS u;
|
|
char *addr2;
|
|
char *addr1;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,3,0);
|
|
#endif
|
|
|
|
u = POPUNS();
|
|
addr2 = POPPTR();
|
|
addr1 = POPPTR();
|
|
|
|
if (u == 0)
|
|
return;
|
|
/*
|
|
** Do the copy carefully, so as to be
|
|
** correct even if the two ranges overlap
|
|
*/
|
|
if (addr1 >= addr2)
|
|
{
|
|
for (; u > 0; u--)
|
|
*addr2++ = *addr1++;
|
|
}
|
|
else
|
|
{
|
|
addr2 += u-1;
|
|
addr1 += u-1;
|
|
for (; u > 0; u--)
|
|
*addr2-- = *addr1--;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
r e c u r s e
|
|
**
|
|
**************************************************************************/
|
|
static void recurseCoIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *pDict = vmGetDict(pVM);
|
|
|
|
IGNORE(pVM);
|
|
dictAppendCell(pDict, LVALUEtoCELL(pDict->smudge));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s t o d
|
|
** s-to-d CORE ( n -- d )
|
|
** Convert the number n to the double-cell number d with the same
|
|
** numerical value.
|
|
**************************************************************************/
|
|
static void sToD(FICL_VM *pVM)
|
|
{
|
|
FICL_INT s;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,2);
|
|
#endif
|
|
|
|
s = POPINT();
|
|
|
|
/* sign extend to 64 bits.. */
|
|
PUSHINT(s);
|
|
PUSHINT((s < 0) ? -1 : 0);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s o u r c e
|
|
** CORE ( -- c-addr u )
|
|
** c-addr is the address of, and u is the number of characters in, the
|
|
** input buffer.
|
|
**************************************************************************/
|
|
static void source(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,0,2);
|
|
#endif
|
|
PUSHPTR(pVM->tib.cp);
|
|
PUSHINT(vmGetInBufLen(pVM));
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
v e r s i o n
|
|
** non-standard...
|
|
**************************************************************************/
|
|
static void ficlVersion(FICL_VM *pVM)
|
|
{
|
|
vmTextOut(pVM, "ficl Version " FICL_VER, 1);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
t o I n
|
|
** to-in CORE
|
|
**************************************************************************/
|
|
static void toIn(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,0,1);
|
|
#endif
|
|
PUSHPTR(&pVM->tib.index);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
c o l o n N o N a m e
|
|
** CORE EXT ( C: -- colon-sys ) ( S: -- xt )
|
|
** Create an unnamed colon definition and push its address.
|
|
** Change state to compile.
|
|
**************************************************************************/
|
|
static void colonNoName(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
FICL_WORD *pFW;
|
|
STRINGINFO si;
|
|
|
|
SI_SETLEN(si, 0);
|
|
SI_SETPTR(si, NULL);
|
|
|
|
pVM->state = COMPILE;
|
|
pFW = dictAppendWord2(dp, si, colonParen, FW_DEFAULT | FW_SMUDGE);
|
|
PUSHPTR(pFW);
|
|
markControlTag(pVM, colonTag);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
u s e r V a r i a b l e
|
|
** user ( u -- ) "<spaces>name"
|
|
** Get a name from the input stream and create a user variable
|
|
** with the name and the index supplied. The run-time effect
|
|
** of a user variable is to push the address of the indexed cell
|
|
** in the running vm's user array.
|
|
**
|
|
** User variables are vm local cells. Each vm has an array of
|
|
** FICL_USER_CELLS of them when FICL_WANT_USER is nonzero.
|
|
** Ficl's user facility is implemented with two primitives,
|
|
** "user" and "(user)", a variable ("nUser") (in softcore.c) that
|
|
** holds the index of the next free user cell, and a redefinition
|
|
** (also in softcore) of "user" that defines a user word and increments
|
|
** nUser.
|
|
**************************************************************************/
|
|
#if FICL_WANT_USER
|
|
static void userParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT i = pVM->runningWord->param[0].i;
|
|
PUSHPTR(&pVM->user[i]);
|
|
return;
|
|
}
|
|
|
|
|
|
static void userVariable(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
CELL c;
|
|
|
|
c = stackPop(pVM->pStack);
|
|
if (c.i >= FICL_USER_CELLS)
|
|
{
|
|
vmThrowErr(pVM, "Error - out of user space");
|
|
}
|
|
|
|
dictAppendWord2(dp, si, userParen, FW_DEFAULT);
|
|
dictAppendCell(dp, c);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
|
|
/**************************************************************************
|
|
t o V a l u e
|
|
** CORE EXT
|
|
** Interpretation: ( x "<spaces>name" -- )
|
|
** Skip leading spaces and parse name delimited by a space. Store x in
|
|
** name. An ambiguous condition exists if name was not defined by VALUE.
|
|
** NOTE: In ficl, VALUE is an alias of CONSTANT
|
|
**************************************************************************/
|
|
static void toValue(FICL_VM *pVM)
|
|
{
|
|
STRINGINFO si = vmGetWord(pVM);
|
|
FICL_DICT *dp = vmGetDict(pVM);
|
|
FICL_WORD *pFW;
|
|
|
|
#if FICL_WANT_LOCALS
|
|
if ((pVM->pSys->nLocals > 0) && (pVM->state == COMPILE))
|
|
{
|
|
FICL_DICT *pLoc = ficlGetLoc(pVM->pSys);
|
|
pFW = dictLookup(pLoc, si);
|
|
if (pFW && (pFW->code == doLocalIm))
|
|
{
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pToLocalParen));
|
|
dictAppendCell(dp, LVALUEtoCELL(pFW->param[0]));
|
|
return;
|
|
}
|
|
else if (pFW && pFW->code == do2LocalIm)
|
|
{
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pTo2LocalParen));
|
|
dictAppendCell(dp, LVALUEtoCELL(pFW->param[0]));
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
assert(pVM->pSys->pStore);
|
|
|
|
pFW = dictLookup(dp, si);
|
|
if (!pFW)
|
|
{
|
|
int i = SI_COUNT(si);
|
|
vmThrowErr(pVM, "%.*s not found", i, SI_PTR(si));
|
|
}
|
|
|
|
if (pVM->state == INTERPRET)
|
|
pFW->param[0] = stackPop(pVM->pStack);
|
|
else /* compile code to store to word's param */
|
|
{
|
|
PUSHPTR(&pFW->param[0]);
|
|
literalIm(pVM);
|
|
dictAppendCell(dp, LVALUEtoCELL(pVM->pSys->pStore));
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
#if FICL_WANT_LOCALS
|
|
/**************************************************************************
|
|
l i n k P a r e n
|
|
** ( -- )
|
|
** Link a frame on the return stack, reserving nCells of space for
|
|
** locals - the value of nCells is the next cell in the instruction
|
|
** stream.
|
|
**************************************************************************/
|
|
static void linkParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT nLink = *(FICL_INT *)(pVM->ip);
|
|
vmBranchRelative(pVM, 1);
|
|
stackLink(pVM->rStack, nLink);
|
|
return;
|
|
}
|
|
|
|
|
|
static void unlinkParen(FICL_VM *pVM)
|
|
{
|
|
stackUnlink(pVM->rStack);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
d o L o c a l I m
|
|
** Immediate - cfa of a local while compiling - when executed, compiles
|
|
** code to fetch the value of a local given the local's index in the
|
|
** word's pfa
|
|
**************************************************************************/
|
|
static void getLocalParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT nLocal = *(FICL_INT *)(pVM->ip++);
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[nLocal]);
|
|
return;
|
|
}
|
|
|
|
|
|
static void toLocalParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT nLocal = *(FICL_INT *)(pVM->ip++);
|
|
pVM->rStack->pFrame[nLocal] = stackPop(pVM->pStack);
|
|
return;
|
|
}
|
|
|
|
|
|
static void getLocal0(FICL_VM *pVM)
|
|
{
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[0]);
|
|
return;
|
|
}
|
|
|
|
|
|
static void toLocal0(FICL_VM *pVM)
|
|
{
|
|
pVM->rStack->pFrame[0] = stackPop(pVM->pStack);
|
|
return;
|
|
}
|
|
|
|
|
|
static void getLocal1(FICL_VM *pVM)
|
|
{
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[1]);
|
|
return;
|
|
}
|
|
|
|
|
|
static void toLocal1(FICL_VM *pVM)
|
|
{
|
|
pVM->rStack->pFrame[1] = stackPop(pVM->pStack);
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** Each local is recorded in a private locals dictionary as a
|
|
** word that does doLocalIm at runtime. DoLocalIm compiles code
|
|
** into the client definition to fetch the value of the
|
|
** corresponding local variable from the return stack.
|
|
** The private dictionary gets initialized at the end of each block
|
|
** that uses locals (in ; and does> for example).
|
|
*/
|
|
static void doLocalIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *pDict = vmGetDict(pVM);
|
|
FICL_INT nLocal = pVM->runningWord->param[0].i;
|
|
|
|
if (pVM->state == INTERPRET)
|
|
{
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[nLocal]);
|
|
}
|
|
else
|
|
{
|
|
|
|
if (nLocal == 0)
|
|
{
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pGetLocal0));
|
|
}
|
|
else if (nLocal == 1)
|
|
{
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pGetLocal1));
|
|
}
|
|
else
|
|
{
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pGetLocalParen));
|
|
dictAppendCell(pDict, LVALUEtoCELL(nLocal));
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
l o c a l P a r e n
|
|
** paren-local-paren LOCAL
|
|
** Interpretation: Interpretation semantics for this word are undefined.
|
|
** Execution: ( c-addr u -- )
|
|
** When executed during compilation, (LOCAL) passes a message to the
|
|
** system that has one of two meanings. If u is non-zero,
|
|
** the message identifies a new local whose definition name is given by
|
|
** the string of characters identified by c-addr u. If u is zero,
|
|
** the message is last local and c-addr has no significance.
|
|
**
|
|
** The result of executing (LOCAL) during compilation of a definition is
|
|
** to create a set of named local identifiers, each of which is
|
|
** a definition name, that only have execution semantics within the scope
|
|
** of that definition's source.
|
|
**
|
|
** local Execution: ( -- x )
|
|
**
|
|
** Push the local's value, x, onto the stack. The local's value is
|
|
** initialized as described in 13.3.3 Processing locals and may be
|
|
** changed by preceding the local's name with TO. An ambiguous condition
|
|
** exists when local is executed while in interpretation state.
|
|
**************************************************************************/
|
|
static void localParen(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *pDict;
|
|
STRINGINFO si;
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,2,0);
|
|
#endif
|
|
|
|
pDict = vmGetDict(pVM);
|
|
SI_SETLEN(si, POPUNS());
|
|
SI_SETPTR(si, (char *)POPPTR());
|
|
|
|
if (SI_COUNT(si) > 0)
|
|
{ /* add a local to the **locals** dict and update nLocals */
|
|
FICL_DICT *pLoc = ficlGetLoc(pVM->pSys);
|
|
if (pVM->pSys->nLocals >= FICL_MAX_LOCALS)
|
|
{
|
|
vmThrowErr(pVM, "Error: out of local space");
|
|
}
|
|
|
|
dictAppendWord2(pLoc, si, doLocalIm, FW_COMPIMMED);
|
|
dictAppendCell(pLoc, LVALUEtoCELL(pVM->pSys->nLocals));
|
|
|
|
if (pVM->pSys->nLocals == 0)
|
|
{ /* compile code to create a local stack frame */
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pLinkParen));
|
|
/* save location in dictionary for #locals */
|
|
pVM->pSys->pMarkLocals = pDict->here;
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->nLocals));
|
|
/* compile code to initialize first local */
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pToLocal0));
|
|
}
|
|
else if (pVM->pSys->nLocals == 1)
|
|
{
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pToLocal1));
|
|
}
|
|
else
|
|
{
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pToLocalParen));
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->nLocals));
|
|
}
|
|
|
|
(pVM->pSys->nLocals)++;
|
|
}
|
|
else if (pVM->pSys->nLocals > 0)
|
|
{ /* write nLocals to (link) param area in dictionary */
|
|
*(FICL_INT *)(pVM->pSys->pMarkLocals) = pVM->pSys->nLocals;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void get2LocalParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT nLocal = *(FICL_INT *)(pVM->ip++);
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[nLocal]);
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[nLocal+1]);
|
|
return;
|
|
}
|
|
|
|
|
|
static void do2LocalIm(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *pDict = vmGetDict(pVM);
|
|
FICL_INT nLocal = pVM->runningWord->param[0].i;
|
|
|
|
if (pVM->state == INTERPRET)
|
|
{
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[nLocal]);
|
|
stackPush(pVM->pStack, pVM->rStack->pFrame[nLocal+1]);
|
|
}
|
|
else
|
|
{
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pGet2LocalParen));
|
|
dictAppendCell(pDict, LVALUEtoCELL(nLocal));
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
static void to2LocalParen(FICL_VM *pVM)
|
|
{
|
|
FICL_INT nLocal = *(FICL_INT *)(pVM->ip++);
|
|
pVM->rStack->pFrame[nLocal+1] = stackPop(pVM->pStack);
|
|
pVM->rStack->pFrame[nLocal] = stackPop(pVM->pStack);
|
|
return;
|
|
}
|
|
|
|
|
|
static void twoLocalParen(FICL_VM *pVM)
|
|
{
|
|
FICL_DICT *pDict = vmGetDict(pVM);
|
|
STRINGINFO si;
|
|
SI_SETLEN(si, stackPopUNS(pVM->pStack));
|
|
SI_SETPTR(si, (char *)stackPopPtr(pVM->pStack));
|
|
|
|
if (SI_COUNT(si) > 0)
|
|
{ /* add a local to the **locals** dict and update nLocals */
|
|
FICL_DICT *pLoc = ficlGetLoc(pVM->pSys);
|
|
if (pVM->pSys->nLocals >= FICL_MAX_LOCALS)
|
|
{
|
|
vmThrowErr(pVM, "Error: out of local space");
|
|
}
|
|
|
|
dictAppendWord2(pLoc, si, do2LocalIm, FW_COMPIMMED);
|
|
dictAppendCell(pLoc, LVALUEtoCELL(pVM->pSys->nLocals));
|
|
|
|
if (pVM->pSys->nLocals == 0)
|
|
{ /* compile code to create a local stack frame */
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pLinkParen));
|
|
/* save location in dictionary for #locals */
|
|
pVM->pSys->pMarkLocals = pDict->here;
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->nLocals));
|
|
}
|
|
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->pTo2LocalParen));
|
|
dictAppendCell(pDict, LVALUEtoCELL(pVM->pSys->nLocals));
|
|
|
|
pVM->pSys->nLocals += 2;
|
|
}
|
|
else if (pVM->pSys->nLocals > 0)
|
|
{ /* write nLocals to (link) param area in dictionary */
|
|
*(FICL_INT *)(pVM->pSys->pMarkLocals) = pVM->pSys->nLocals;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
#endif
|
|
/**************************************************************************
|
|
c o m p a r e
|
|
** STRING ( c-addr1 u1 c-addr2 u2 -- n )
|
|
** Compare the string specified by c-addr1 u1 to the string specified by
|
|
** c-addr2 u2. The strings are compared, beginning at the given addresses,
|
|
** character by character, up to the length of the shorter string or until a
|
|
** difference is found. If the two strings are identical, n is zero. If the two
|
|
** strings are identical up to the length of the shorter string, n is minus-one
|
|
** (-1) if u1 is less than u2 and one (1) otherwise. If the two strings are not
|
|
** identical up to the length of the shorter string, n is minus-one (-1) if the
|
|
** first non-matching character in the string specified by c-addr1 u1 has a
|
|
** lesser numeric value than the corresponding character in the string specified
|
|
** by c-addr2 u2 and one (1) otherwise.
|
|
**************************************************************************/
|
|
static void compareInternal(FICL_VM *pVM, int caseInsensitive)
|
|
{
|
|
char *cp1, *cp2;
|
|
FICL_UNS u1, u2, uMin;
|
|
int n = 0;
|
|
|
|
vmCheckStack(pVM, 4, 1);
|
|
u2 = stackPopUNS(pVM->pStack);
|
|
cp2 = (char *)stackPopPtr(pVM->pStack);
|
|
u1 = stackPopUNS(pVM->pStack);
|
|
cp1 = (char *)stackPopPtr(pVM->pStack);
|
|
|
|
uMin = (u1 < u2)? u1 : u2;
|
|
for ( ; (uMin > 0) && (n == 0); uMin--)
|
|
{
|
|
char c1 = *cp1++;
|
|
char c2 = *cp2++;
|
|
if (caseInsensitive)
|
|
{
|
|
c1 = (char)tolower(c1);
|
|
c2 = (char)tolower(c2);
|
|
}
|
|
n = (int)(c1 - c2);
|
|
}
|
|
|
|
if (n == 0)
|
|
n = (int)(u1 - u2);
|
|
|
|
if (n < 0)
|
|
n = -1;
|
|
else if (n > 0)
|
|
n = 1;
|
|
|
|
PUSHINT(n);
|
|
return;
|
|
}
|
|
|
|
|
|
static void compareString(FICL_VM *pVM)
|
|
{
|
|
compareInternal(pVM, FALSE);
|
|
}
|
|
|
|
|
|
static void compareStringInsensitive(FICL_VM *pVM)
|
|
{
|
|
compareInternal(pVM, TRUE);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
p a d
|
|
** CORE EXT ( -- c-addr )
|
|
** c-addr is the address of a transient region that can be used to hold
|
|
** data for intermediate processing.
|
|
**************************************************************************/
|
|
static void pad(FICL_VM *pVM)
|
|
{
|
|
stackPushPtr(pVM->pStack, pVM->pad);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
s o u r c e - i d
|
|
** CORE EXT, FILE ( -- 0 | -1 | fileid )
|
|
** Identifies the input source as follows:
|
|
**
|
|
** SOURCE-ID Input source
|
|
** --------- ------------
|
|
** fileid Text file fileid
|
|
** -1 String (via EVALUATE)
|
|
** 0 User input device
|
|
**************************************************************************/
|
|
static void sourceid(FICL_VM *pVM)
|
|
{
|
|
PUSHINT(pVM->sourceID.i);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
r e f i l l
|
|
** CORE EXT ( -- flag )
|
|
** Attempt to fill the input buffer from the input source, returning a true
|
|
** flag if successful.
|
|
** When the input source is the user input device, attempt to receive input
|
|
** into the terminal input buffer. If successful, make the result the input
|
|
** buffer, set >IN to zero, and return true. Receipt of a line containing no
|
|
** characters is considered successful. If there is no input available from
|
|
** the current input source, return false.
|
|
** When the input source is a string from EVALUATE, return false and
|
|
** perform no other action.
|
|
**************************************************************************/
|
|
static void refill(FICL_VM *pVM)
|
|
{
|
|
FICL_INT ret = (pVM->sourceID.i == -1) ? FICL_FALSE : FICL_TRUE;
|
|
if (ret && (pVM->fRestart == 0))
|
|
vmThrow(pVM, VM_RESTART);
|
|
|
|
PUSHINT(ret);
|
|
return;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
freebsd exception handling words
|
|
** Catch, from ANS Forth standard. Installs a safety net, then EXECUTE
|
|
** the word in ToS. If an exception happens, restore the state to what
|
|
** it was before, and pushes the exception value on the stack. If not,
|
|
** push zero.
|
|
**
|
|
** Notice that Catch implements an inner interpreter. This is ugly,
|
|
** but given how ficl works, it cannot be helped. The problem is that
|
|
** colon definitions will be executed *after* the function returns,
|
|
** while "code" definitions will be executed immediately. I considered
|
|
** other solutions to this problem, but all of them shared the same
|
|
** basic problem (with added disadvantages): if ficl ever changes it's
|
|
** inner thread modus operandi, one would have to fix this word.
|
|
**
|
|
** More comments can be found throughout catch's code.
|
|
**
|
|
** Daniel C. Sobral Jan 09/1999
|
|
** sadler may 2000 -- revised to follow ficl.c:ficlExecXT.
|
|
**************************************************************************/
|
|
|
|
static void ficlCatch(FICL_VM *pVM)
|
|
{
|
|
int except;
|
|
jmp_buf vmState;
|
|
FICL_VM VM;
|
|
FICL_STACK pStack;
|
|
FICL_STACK rStack;
|
|
FICL_WORD *pFW;
|
|
|
|
assert(pVM);
|
|
assert(pVM->pSys->pExitInner);
|
|
|
|
|
|
/*
|
|
** Get xt.
|
|
** We need this *before* we save the stack pointer, or
|
|
** we'll have to pop one element out of the stack after
|
|
** an exception. I prefer to get done with it up front. :-)
|
|
*/
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 0);
|
|
#endif
|
|
pFW = stackPopPtr(pVM->pStack);
|
|
|
|
/*
|
|
** Save vm's state -- a catch will not back out environmental
|
|
** changes.
|
|
**
|
|
** We are *not* saving dictionary state, since it is
|
|
** global instead of per vm, and we are not saving
|
|
** stack contents, since we are not required to (and,
|
|
** thus, it would be useless). We save pVM, and pVM
|
|
** "stacks" (a structure containing general information
|
|
** about it, including the current stack pointer).
|
|
*/
|
|
memcpy((void*)&VM, (void*)pVM, sizeof(FICL_VM));
|
|
memcpy((void*)&pStack, (void*)pVM->pStack, sizeof(FICL_STACK));
|
|
memcpy((void*)&rStack, (void*)pVM->rStack, sizeof(FICL_STACK));
|
|
|
|
/*
|
|
** Give pVM a jmp_buf
|
|
*/
|
|
pVM->pState = &vmState;
|
|
|
|
/*
|
|
** Safety net
|
|
*/
|
|
except = setjmp(vmState);
|
|
|
|
switch (except)
|
|
{
|
|
/*
|
|
** Setup condition - push poison pill so that the VM throws
|
|
** VM_INNEREXIT if the XT terminates normally, then execute
|
|
** the XT
|
|
*/
|
|
case 0:
|
|
vmPushIP(pVM, &(pVM->pSys->pExitInner)); /* Open mouth, insert emetic */
|
|
vmExecute(pVM, pFW);
|
|
vmInnerLoop(pVM);
|
|
break;
|
|
|
|
/*
|
|
** Normal exit from XT - lose the poison pill,
|
|
** restore old setjmp vector and push a zero.
|
|
*/
|
|
case VM_INNEREXIT:
|
|
vmPopIP(pVM); /* Gack - hurl poison pill */
|
|
pVM->pState = VM.pState; /* Restore just the setjmp vector */
|
|
PUSHINT(0); /* Push 0 -- everything is ok */
|
|
break;
|
|
|
|
/*
|
|
** Some other exception got thrown - restore pre-existing VM state
|
|
** and push the exception code
|
|
*/
|
|
default:
|
|
/* Restore vm's state */
|
|
memcpy((void*)pVM, (void*)&VM, sizeof(FICL_VM));
|
|
memcpy((void*)pVM->pStack, (void*)&pStack, sizeof(FICL_STACK));
|
|
memcpy((void*)pVM->rStack, (void*)&rStack, sizeof(FICL_STACK));
|
|
|
|
PUSHINT(except);/* Push error */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**************************************************************************
|
|
** t h r o w
|
|
** EXCEPTION
|
|
** Throw -- From ANS Forth standard.
|
|
**
|
|
** Throw takes the ToS and, if that's different from zero,
|
|
** returns to the last executed catch context. Further throws will
|
|
** unstack previously executed "catches", in LIFO mode.
|
|
**
|
|
** Daniel C. Sobral Jan 09/1999
|
|
**************************************************************************/
|
|
static void ficlThrow(FICL_VM *pVM)
|
|
{
|
|
int except;
|
|
|
|
except = stackPopINT(pVM->pStack);
|
|
|
|
if (except)
|
|
vmThrow(pVM, except);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
** a l l o c a t e
|
|
** MEMORY
|
|
**************************************************************************/
|
|
static void ansAllocate(FICL_VM *pVM)
|
|
{
|
|
size_t size;
|
|
void *p;
|
|
|
|
size = stackPopINT(pVM->pStack);
|
|
p = ficlMalloc(size);
|
|
PUSHPTR(p);
|
|
if (p)
|
|
PUSHINT(0);
|
|
else
|
|
PUSHINT(1);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
** f r e e
|
|
** MEMORY
|
|
**************************************************************************/
|
|
static void ansFree(FICL_VM *pVM)
|
|
{
|
|
void *p;
|
|
|
|
p = stackPopPtr(pVM->pStack);
|
|
ficlFree(p);
|
|
PUSHINT(0);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
** r e s i z e
|
|
** MEMORY
|
|
**************************************************************************/
|
|
static void ansResize(FICL_VM *pVM)
|
|
{
|
|
size_t size;
|
|
void *new, *old;
|
|
|
|
size = stackPopINT(pVM->pStack);
|
|
old = stackPopPtr(pVM->pStack);
|
|
new = ficlRealloc(old, size);
|
|
if (new)
|
|
{
|
|
PUSHPTR(new);
|
|
PUSHINT(0);
|
|
}
|
|
else
|
|
{
|
|
PUSHPTR(old);
|
|
PUSHINT(1);
|
|
}
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
** e x i t - i n n e r
|
|
** Signals execXT that an inner loop has completed
|
|
**************************************************************************/
|
|
static void ficlExitInner(FICL_VM *pVM)
|
|
{
|
|
vmThrow(pVM, VM_INNEREXIT);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
d n e g a t e
|
|
** DOUBLE ( d1 -- d2 )
|
|
** d2 is the negation of d1.
|
|
**************************************************************************/
|
|
static void dnegate(FICL_VM *pVM)
|
|
{
|
|
DPINT i = i64Pop(pVM->pStack);
|
|
i = m64Negate(i);
|
|
i64Push(pVM->pStack, i);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
#if 0
|
|
/**************************************************************************
|
|
|
|
**
|
|
**************************************************************************/
|
|
static void funcname(FICL_VM *pVM)
|
|
{
|
|
IGNORE(pVM);
|
|
return;
|
|
}
|
|
|
|
|
|
#endif
|
|
/**************************************************************************
|
|
f i c l W o r d C l a s s i f y
|
|
** This public function helps to classify word types for SEE
|
|
** and the deugger in tools.c. Given a pointer to a word, it returns
|
|
** a member of WOR
|
|
**************************************************************************/
|
|
WORDKIND ficlWordClassify(FICL_WORD *pFW)
|
|
{
|
|
typedef struct
|
|
{
|
|
WORDKIND kind;
|
|
FICL_CODE code;
|
|
} CODEtoKIND;
|
|
|
|
static CODEtoKIND codeMap[] =
|
|
{
|
|
{BRANCH, branchParen},
|
|
{COLON, colonParen},
|
|
{CONSTANT, constantParen},
|
|
{CREATE, createParen},
|
|
{DO, doParen},
|
|
{DOES, doDoes},
|
|
{IF, ifParen},
|
|
{LITERAL, literalParen},
|
|
{LOOP, loopParen},
|
|
{PLOOP, plusLoopParen},
|
|
{QDO, qDoParen},
|
|
{CSTRINGLIT, cstringLit},
|
|
{STRINGLIT, stringLit},
|
|
#if FICL_WANT_USER
|
|
{USER, userParen},
|
|
#endif
|
|
{VARIABLE, variableParen},
|
|
};
|
|
|
|
#define nMAP (sizeof(codeMap) / sizeof(CODEtoKIND))
|
|
|
|
FICL_CODE code = pFW->code;
|
|
int i;
|
|
|
|
for (i=0; i < nMAP; i++)
|
|
{
|
|
if (codeMap[i].code == code)
|
|
return codeMap[i].kind;
|
|
}
|
|
|
|
return PRIMITIVE;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
f i c l C o m p i l e C o r e
|
|
** Builds the primitive wordset and the environment-query namespace.
|
|
**************************************************************************/
|
|
|
|
void ficlCompileCore(FICL_SYSTEM *pSys)
|
|
{
|
|
FICL_DICT *dp = pSys->dp;
|
|
assert (dp);
|
|
|
|
|
|
/*
|
|
** CORE word set
|
|
** see softcore.c for definitions of: abs bl space spaces abort"
|
|
*/
|
|
pSys->pStore =
|
|
dictAppendWord(dp, "!", store, FW_DEFAULT);
|
|
dictAppendWord(dp, "#", numberSign, FW_DEFAULT);
|
|
dictAppendWord(dp, "#>", numberSignGreater,FW_DEFAULT);
|
|
dictAppendWord(dp, "#s", numberSignS, FW_DEFAULT);
|
|
dictAppendWord(dp, "\'", ficlTick, FW_DEFAULT);
|
|
dictAppendWord(dp, "(", commentHang, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "*", mul, FW_DEFAULT);
|
|
dictAppendWord(dp, "*/", mulDiv, FW_DEFAULT);
|
|
dictAppendWord(dp, "*/mod", mulDivRem, FW_DEFAULT);
|
|
dictAppendWord(dp, "+", add, FW_DEFAULT);
|
|
dictAppendWord(dp, "+!", plusStore, FW_DEFAULT);
|
|
dictAppendWord(dp, "+loop", plusLoopCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, ",", comma, FW_DEFAULT);
|
|
dictAppendWord(dp, "-", sub, FW_DEFAULT);
|
|
dictAppendWord(dp, ".", displayCell, FW_DEFAULT);
|
|
dictAppendWord(dp, ".\"", dotQuoteCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "/", ficlDiv, FW_DEFAULT);
|
|
dictAppendWord(dp, "/mod", slashMod, FW_DEFAULT);
|
|
dictAppendWord(dp, "0<", zeroLess, FW_DEFAULT);
|
|
dictAppendWord(dp, "0=", zeroEquals, FW_DEFAULT);
|
|
dictAppendWord(dp, "1+", onePlus, FW_DEFAULT);
|
|
dictAppendWord(dp, "1-", oneMinus, FW_DEFAULT);
|
|
dictAppendWord(dp, "2!", twoStore, FW_DEFAULT);
|
|
dictAppendWord(dp, "2*", twoMul, FW_DEFAULT);
|
|
dictAppendWord(dp, "2/", twoDiv, FW_DEFAULT);
|
|
dictAppendWord(dp, "2@", twoFetch, FW_DEFAULT);
|
|
dictAppendWord(dp, "2drop", twoDrop, FW_DEFAULT);
|
|
dictAppendWord(dp, "2dup", twoDup, FW_DEFAULT);
|
|
dictAppendWord(dp, "2over", twoOver, FW_DEFAULT);
|
|
dictAppendWord(dp, "2swap", twoSwap, FW_DEFAULT);
|
|
dictAppendWord(dp, ":", colon, FW_DEFAULT);
|
|
dictAppendWord(dp, ";", semicolonCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "<", isLess, FW_DEFAULT);
|
|
dictAppendWord(dp, "<#", lessNumberSign, FW_DEFAULT);
|
|
dictAppendWord(dp, "=", isEqual, FW_DEFAULT);
|
|
dictAppendWord(dp, ">", isGreater, FW_DEFAULT);
|
|
dictAppendWord(dp, ">body", toBody, FW_DEFAULT);
|
|
dictAppendWord(dp, ">in", toIn, FW_DEFAULT);
|
|
dictAppendWord(dp, ">number", toNumber, FW_DEFAULT);
|
|
dictAppendWord(dp, ">r", toRStack, FW_COMPILE);
|
|
dictAppendWord(dp, "?dup", questionDup, FW_DEFAULT);
|
|
dictAppendWord(dp, "@", fetch, FW_DEFAULT);
|
|
dictAppendWord(dp, "abort", ficlAbort, FW_DEFAULT);
|
|
dictAppendWord(dp, "accept", accept, FW_DEFAULT);
|
|
dictAppendWord(dp, "align", align, FW_DEFAULT);
|
|
dictAppendWord(dp, "aligned", aligned, FW_DEFAULT);
|
|
dictAppendWord(dp, "allot", allot, FW_DEFAULT);
|
|
dictAppendWord(dp, "and", bitwiseAnd, FW_DEFAULT);
|
|
dictAppendWord(dp, "base", base, FW_DEFAULT);
|
|
dictAppendWord(dp, "begin", beginCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "c!", cStore, FW_DEFAULT);
|
|
dictAppendWord(dp, "c,", cComma, FW_DEFAULT);
|
|
dictAppendWord(dp, "c@", cFetch, FW_DEFAULT);
|
|
dictAppendWord(dp, "cell+", cellPlus, FW_DEFAULT);
|
|
dictAppendWord(dp, "cells", cells, FW_DEFAULT);
|
|
dictAppendWord(dp, "char", ficlChar, FW_DEFAULT);
|
|
dictAppendWord(dp, "char+", charPlus, FW_DEFAULT);
|
|
dictAppendWord(dp, "chars", ficlChars, FW_DEFAULT);
|
|
dictAppendWord(dp, "constant", constant, FW_DEFAULT);
|
|
dictAppendWord(dp, "count", count, FW_DEFAULT);
|
|
dictAppendWord(dp, "cr", cr, FW_DEFAULT);
|
|
dictAppendWord(dp, "create", create, FW_DEFAULT);
|
|
dictAppendWord(dp, "decimal", decimal, FW_DEFAULT);
|
|
dictAppendWord(dp, "depth", depth, FW_DEFAULT);
|
|
dictAppendWord(dp, "do", doCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "does>", doesCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "drop", drop, FW_DEFAULT);
|
|
dictAppendWord(dp, "dup", dup, FW_DEFAULT);
|
|
dictAppendWord(dp, "else", elseCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "emit", emit, FW_DEFAULT);
|
|
dictAppendWord(dp, "environment?", environmentQ,FW_DEFAULT);
|
|
dictAppendWord(dp, "evaluate", evaluate, FW_DEFAULT);
|
|
dictAppendWord(dp, "execute", execute, FW_DEFAULT);
|
|
dictAppendWord(dp, "exit", exitCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "fill", fill, FW_DEFAULT);
|
|
dictAppendWord(dp, "find", cFind, FW_DEFAULT);
|
|
dictAppendWord(dp, "fm/mod", fmSlashMod, FW_DEFAULT);
|
|
dictAppendWord(dp, "here", here, FW_DEFAULT);
|
|
dictAppendWord(dp, "hold", hold, FW_DEFAULT);
|
|
dictAppendWord(dp, "i", loopICo, FW_COMPILE);
|
|
dictAppendWord(dp, "if", ifCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "immediate", immediate, FW_DEFAULT);
|
|
dictAppendWord(dp, "invert", bitwiseNot, FW_DEFAULT);
|
|
dictAppendWord(dp, "j", loopJCo, FW_COMPILE);
|
|
dictAppendWord(dp, "k", loopKCo, FW_COMPILE);
|
|
dictAppendWord(dp, "leave", leaveCo, FW_COMPILE);
|
|
dictAppendWord(dp, "literal", literalIm, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "loop", loopCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "lshift", lshift, FW_DEFAULT);
|
|
dictAppendWord(dp, "m*", mStar, FW_DEFAULT);
|
|
dictAppendWord(dp, "max", ficlMax, FW_DEFAULT);
|
|
dictAppendWord(dp, "min", ficlMin, FW_DEFAULT);
|
|
dictAppendWord(dp, "mod", ficlMod, FW_DEFAULT);
|
|
dictAppendWord(dp, "move", move, FW_DEFAULT);
|
|
dictAppendWord(dp, "negate", negate, FW_DEFAULT);
|
|
dictAppendWord(dp, "or", bitwiseOr, FW_DEFAULT);
|
|
dictAppendWord(dp, "over", over, FW_DEFAULT);
|
|
dictAppendWord(dp, "postpone", postponeCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "quit", quit, FW_DEFAULT);
|
|
dictAppendWord(dp, "r>", fromRStack, FW_COMPILE);
|
|
dictAppendWord(dp, "r@", fetchRStack, FW_COMPILE);
|
|
dictAppendWord(dp, "recurse", recurseCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "repeat", repeatCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "rot", rot, FW_DEFAULT);
|
|
dictAppendWord(dp, "rshift", rshift, FW_DEFAULT);
|
|
dictAppendWord(dp, "s\"", stringQuoteIm, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "s>d", sToD, FW_DEFAULT);
|
|
dictAppendWord(dp, "sign", sign, FW_DEFAULT);
|
|
dictAppendWord(dp, "sm/rem", smSlashRem, FW_DEFAULT);
|
|
dictAppendWord(dp, "source", source, FW_DEFAULT);
|
|
dictAppendWord(dp, "state", state, FW_DEFAULT);
|
|
dictAppendWord(dp, "swap", swap, FW_DEFAULT);
|
|
dictAppendWord(dp, "then", endifCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "type", type, FW_DEFAULT);
|
|
dictAppendWord(dp, "u.", uDot, FW_DEFAULT);
|
|
dictAppendWord(dp, "u<", uIsLess, FW_DEFAULT);
|
|
dictAppendWord(dp, "um*", umStar, FW_DEFAULT);
|
|
dictAppendWord(dp, "um/mod", umSlashMod, FW_DEFAULT);
|
|
dictAppendWord(dp, "unloop", unloopCo, FW_COMPILE);
|
|
dictAppendWord(dp, "until", untilCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "variable", variable, FW_DEFAULT);
|
|
dictAppendWord(dp, "while", whileCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "word", ficlWord, FW_DEFAULT);
|
|
dictAppendWord(dp, "xor", bitwiseXor, FW_DEFAULT);
|
|
dictAppendWord(dp, "[", lbracketCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "[\']", bracketTickCoIm,FW_COMPIMMED);
|
|
dictAppendWord(dp, "[char]", charCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "]", rbracket, FW_DEFAULT);
|
|
/*
|
|
** CORE EXT word set...
|
|
** see softcore.fr for other definitions
|
|
*/
|
|
/* "#tib" */
|
|
dictAppendWord(dp, ".(", dotParen, FW_IMMEDIATE);
|
|
/* ".r" */
|
|
dictAppendWord(dp, "0>", zeroGreater, FW_DEFAULT);
|
|
dictAppendWord(dp, "2>r", twoToR, FW_COMPILE);
|
|
dictAppendWord(dp, "2r>", twoRFrom, FW_COMPILE);
|
|
dictAppendWord(dp, "2r@", twoRFetch, FW_COMPILE);
|
|
dictAppendWord(dp, ":noname", colonNoName, FW_DEFAULT);
|
|
dictAppendWord(dp, "?do", qDoCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "again", againCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "c\"", cstringQuoteIm, FW_IMMEDIATE);
|
|
/* case of endof endcase */
|
|
dictAppendWord(dp, "hex", hex, FW_DEFAULT);
|
|
dictAppendWord(dp, "pad", pad, FW_DEFAULT);
|
|
dictAppendWord(dp, "parse", parse, FW_DEFAULT);
|
|
dictAppendWord(dp, "pick", pick, FW_DEFAULT);
|
|
/* query restore-input save-input tib u.r u> unused [compile] */
|
|
dictAppendWord(dp, "roll", roll, FW_DEFAULT);
|
|
dictAppendWord(dp, "refill", refill, FW_DEFAULT);
|
|
dictAppendWord(dp, "source-id", sourceid, FW_DEFAULT);
|
|
dictAppendWord(dp, "to", toValue, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "value", constant, FW_DEFAULT);
|
|
dictAppendWord(dp, "\\", commentLine, FW_IMMEDIATE);
|
|
|
|
|
|
/*
|
|
** Set CORE environment query values
|
|
*/
|
|
ficlSetEnv(pSys, "/counted-string", FICL_STRING_MAX);
|
|
ficlSetEnv(pSys, "/hold", nPAD);
|
|
ficlSetEnv(pSys, "/pad", nPAD);
|
|
ficlSetEnv(pSys, "address-unit-bits", 8);
|
|
ficlSetEnv(pSys, "core", FICL_TRUE);
|
|
ficlSetEnv(pSys, "core-ext", FICL_FALSE);
|
|
ficlSetEnv(pSys, "floored", FICL_FALSE);
|
|
ficlSetEnv(pSys, "max-char", UCHAR_MAX);
|
|
ficlSetEnvD(pSys,"max-d", 0x7fffffff, 0xffffffff);
|
|
ficlSetEnv(pSys, "max-n", 0x7fffffff);
|
|
ficlSetEnv(pSys, "max-u", 0xffffffff);
|
|
ficlSetEnvD(pSys,"max-ud", 0xffffffff, 0xffffffff);
|
|
ficlSetEnv(pSys, "return-stack-cells",FICL_DEFAULT_STACK);
|
|
ficlSetEnv(pSys, "stack-cells", FICL_DEFAULT_STACK);
|
|
|
|
/*
|
|
** DOUBLE word set (partial)
|
|
*/
|
|
dictAppendWord(dp, "2constant", twoConstant, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "2literal", twoLiteralIm, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "2variable", twoVariable, FW_IMMEDIATE);
|
|
dictAppendWord(dp, "dnegate", dnegate, FW_DEFAULT);
|
|
|
|
|
|
/*
|
|
** EXCEPTION word set
|
|
*/
|
|
dictAppendWord(dp, "catch", ficlCatch, FW_DEFAULT);
|
|
dictAppendWord(dp, "throw", ficlThrow, FW_DEFAULT);
|
|
|
|
ficlSetEnv(pSys, "exception", FICL_TRUE);
|
|
ficlSetEnv(pSys, "exception-ext", FICL_TRUE);
|
|
|
|
/*
|
|
** LOCAL and LOCAL EXT
|
|
** see softcore.c for implementation of locals|
|
|
*/
|
|
#if FICL_WANT_LOCALS
|
|
pSys->pLinkParen =
|
|
dictAppendWord(dp, "(link)", linkParen, FW_COMPILE);
|
|
pSys->pUnLinkParen =
|
|
dictAppendWord(dp, "(unlink)", unlinkParen, FW_COMPILE);
|
|
dictAppendWord(dp, "doLocal", doLocalIm, FW_COMPIMMED);
|
|
pSys->pGetLocalParen =
|
|
dictAppendWord(dp, "(@local)", getLocalParen, FW_COMPILE);
|
|
pSys->pToLocalParen =
|
|
dictAppendWord(dp, "(toLocal)", toLocalParen, FW_COMPILE);
|
|
pSys->pGetLocal0 =
|
|
dictAppendWord(dp, "(@local0)", getLocal0, FW_COMPILE);
|
|
pSys->pToLocal0 =
|
|
dictAppendWord(dp, "(toLocal0)",toLocal0, FW_COMPILE);
|
|
pSys->pGetLocal1 =
|
|
dictAppendWord(dp, "(@local1)", getLocal1, FW_COMPILE);
|
|
pSys->pToLocal1 =
|
|
dictAppendWord(dp, "(toLocal1)",toLocal1, FW_COMPILE);
|
|
dictAppendWord(dp, "(local)", localParen, FW_COMPILE);
|
|
|
|
pSys->pGet2LocalParen =
|
|
dictAppendWord(dp, "(@2local)", get2LocalParen, FW_COMPILE);
|
|
pSys->pTo2LocalParen =
|
|
dictAppendWord(dp, "(to2Local)",to2LocalParen, FW_COMPILE);
|
|
dictAppendWord(dp, "(2local)", twoLocalParen, FW_COMPILE);
|
|
|
|
ficlSetEnv(pSys, "locals", FICL_TRUE);
|
|
ficlSetEnv(pSys, "locals-ext", FICL_TRUE);
|
|
ficlSetEnv(pSys, "#locals", FICL_MAX_LOCALS);
|
|
#endif
|
|
|
|
/*
|
|
** Optional MEMORY-ALLOC word set
|
|
*/
|
|
|
|
dictAppendWord(dp, "allocate", ansAllocate, FW_DEFAULT);
|
|
dictAppendWord(dp, "free", ansFree, FW_DEFAULT);
|
|
dictAppendWord(dp, "resize", ansResize, FW_DEFAULT);
|
|
|
|
ficlSetEnv(pSys, "memory-alloc", FICL_TRUE);
|
|
|
|
/*
|
|
** optional SEARCH-ORDER word set
|
|
*/
|
|
ficlCompileSearch(pSys);
|
|
|
|
/*
|
|
** TOOLS and TOOLS EXT
|
|
*/
|
|
ficlCompileTools(pSys);
|
|
|
|
/*
|
|
** FILE and FILE EXT
|
|
*/
|
|
#if FICL_WANT_FILE
|
|
ficlCompileFile(pSys);
|
|
#endif
|
|
|
|
/*
|
|
** Ficl extras
|
|
*/
|
|
#if FICL_WANT_FLOAT
|
|
dictAppendWord(dp, ".hash", dictHashSummary,FW_DEFAULT);
|
|
#endif
|
|
dictAppendWord(dp, ".ver", ficlVersion, FW_DEFAULT);
|
|
dictAppendWord(dp, "-roll", minusRoll, FW_DEFAULT);
|
|
dictAppendWord(dp, ">name", toName, FW_DEFAULT);
|
|
dictAppendWord(dp, "add-parse-step",
|
|
addParseStep, FW_DEFAULT);
|
|
dictAppendWord(dp, "body>", fromBody, FW_DEFAULT);
|
|
dictAppendWord(dp, "compare", compareString, FW_DEFAULT); /* STRING */
|
|
dictAppendWord(dp, "compare-insensitive", compareStringInsensitive, FW_DEFAULT); /* STRING */
|
|
dictAppendWord(dp, "compile-only",
|
|
compileOnly, FW_DEFAULT);
|
|
dictAppendWord(dp, "endif", endifCoIm, FW_COMPIMMED);
|
|
dictAppendWord(dp, "last-word", getLastWord, FW_DEFAULT);
|
|
dictAppendWord(dp, "hash", hash, FW_DEFAULT);
|
|
dictAppendWord(dp, "objectify", setObjectFlag, FW_DEFAULT);
|
|
dictAppendWord(dp, "?object", isObject, FW_DEFAULT);
|
|
dictAppendWord(dp, "parse-word",parseNoCopy, FW_DEFAULT);
|
|
dictAppendWord(dp, "sfind", sFind, FW_DEFAULT);
|
|
dictAppendWord(dp, "sliteral", sLiteralCoIm, FW_COMPIMMED); /* STRING */
|
|
dictAppendWord(dp, "sprintf", ficlSprintf, FW_DEFAULT);
|
|
dictAppendWord(dp, "strlen", ficlStrlen, FW_DEFAULT);
|
|
dictAppendWord(dp, "q@", quadFetch, FW_DEFAULT);
|
|
dictAppendWord(dp, "q!", quadStore, FW_DEFAULT);
|
|
dictAppendWord(dp, "w@", wFetch, FW_DEFAULT);
|
|
dictAppendWord(dp, "w!", wStore, FW_DEFAULT);
|
|
dictAppendWord(dp, "x.", hexDot, FW_DEFAULT);
|
|
#if FICL_WANT_USER
|
|
dictAppendWord(dp, "(user)", userParen, FW_DEFAULT);
|
|
dictAppendWord(dp, "user", userVariable, FW_DEFAULT);
|
|
#endif
|
|
|
|
/*
|
|
** internal support words
|
|
*/
|
|
dictAppendWord(dp, "(create)", createParen, FW_COMPILE);
|
|
pSys->pExitParen =
|
|
dictAppendWord(dp, "(exit)", exitParen, FW_COMPILE);
|
|
pSys->pSemiParen =
|
|
dictAppendWord(dp, "(;)", semiParen, FW_COMPILE);
|
|
pSys->pLitParen =
|
|
dictAppendWord(dp, "(literal)", literalParen, FW_COMPILE);
|
|
pSys->pTwoLitParen =
|
|
dictAppendWord(dp, "(2literal)",twoLitParen, FW_COMPILE);
|
|
pSys->pStringLit =
|
|
dictAppendWord(dp, "(.\")", stringLit, FW_COMPILE);
|
|
pSys->pCStringLit =
|
|
dictAppendWord(dp, "(c\")", cstringLit, FW_COMPILE);
|
|
pSys->pIfParen =
|
|
dictAppendWord(dp, "(if)", ifParen, FW_COMPILE);
|
|
pSys->pBranchParen =
|
|
dictAppendWord(dp, "(branch)", branchParen, FW_COMPILE);
|
|
pSys->pDoParen =
|
|
dictAppendWord(dp, "(do)", doParen, FW_COMPILE);
|
|
pSys->pDoesParen =
|
|
dictAppendWord(dp, "(does>)", doesParen, FW_COMPILE);
|
|
pSys->pQDoParen =
|
|
dictAppendWord(dp, "(?do)", qDoParen, FW_COMPILE);
|
|
pSys->pLoopParen =
|
|
dictAppendWord(dp, "(loop)", loopParen, FW_COMPILE);
|
|
pSys->pPLoopParen =
|
|
dictAppendWord(dp, "(+loop)", plusLoopParen, FW_COMPILE);
|
|
pSys->pInterpret =
|
|
dictAppendWord(dp, "interpret", interpret, FW_DEFAULT);
|
|
dictAppendWord(dp, "lookup", lookup, FW_DEFAULT);
|
|
dictAppendWord(dp, "(variable)",variableParen, FW_COMPILE);
|
|
dictAppendWord(dp, "(constant)",constantParen, FW_COMPILE);
|
|
dictAppendWord(dp, "(parse-step)",
|
|
parseStepParen, FW_DEFAULT);
|
|
pSys->pExitInner =
|
|
dictAppendWord(dp, "exit-inner",ficlExitInner, FW_DEFAULT);
|
|
|
|
/*
|
|
** Set up system's outer interpreter loop - maybe this should be in initSystem?
|
|
*/
|
|
pSys->pInterp[0] = pSys->pInterpret;
|
|
pSys->pInterp[1] = pSys->pBranchParen;
|
|
pSys->pInterp[2] = (FICL_WORD *)(void *)(-2);
|
|
|
|
assert(dictCellsAvail(dp) > 0);
|
|
|
|
return;
|
|
}
|
|
|