138 lines
2.4 KiB
C
138 lines
2.4 KiB
C
/*******************************************************************
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** s y s d e p . c
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** Forth Inspired Command Language
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** Author: John Sadler (john_sadler@alum.mit.edu)
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** Created: 16 Oct 1997
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** Implementations of FICL external interface functions...
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**
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*******************************************************************/
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/* $FreeBSD$ */
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#ifdef TESTMAIN
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#include <stdio.h>
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#include <stdlib.h>
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#else
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#include <stand.h>
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#ifdef __i386__
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#include <machine/cpufunc.h>
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#endif
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#endif
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#include "ficl.h"
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/*
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******************* FreeBSD P O R T B E G I N S H E R E ******************** Michael Smith
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*/
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#if PORTABLE_LONGMULDIV == 0
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DPUNS ficlLongMul(FICL_UNS x, FICL_UNS y)
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{
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DPUNS q;
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u_int64_t qx;
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qx = (u_int64_t)x * (u_int64_t) y;
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q.hi = (u_int32_t)( qx >> 32 );
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q.lo = (u_int32_t)( qx & 0xFFFFFFFFL);
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return q;
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}
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UNSQR ficlLongDiv(DPUNS q, FICL_UNS y)
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{
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UNSQR result;
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u_int64_t qx, qh;
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qh = q.hi;
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qx = (qh << 32) | q.lo;
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result.quot = qx / y;
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result.rem = qx % y;
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return result;
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}
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#endif
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void ficlTextOut(FICL_VM *pVM, char *msg, int fNewline)
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{
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IGNORE(pVM);
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while(*msg != 0)
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putchar(*(msg++));
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if (fNewline)
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putchar('\n');
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return;
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}
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void *ficlMalloc (size_t size)
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{
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return malloc(size);
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}
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void *ficlRealloc (void *p, size_t size)
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{
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return realloc(p, size);
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}
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void ficlFree (void *p)
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{
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free(p);
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}
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#ifndef TESTMAIN
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#ifdef __i386__
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/*
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* outb ( port# c -- )
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* Store a byte to I/O port number port#
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*/
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void
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ficlOutb(FICL_VM *pVM)
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{
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u_char c;
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u_int32_t port;
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port=stackPopUNS(pVM->pStack);
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c=(u_char)stackPopINT(pVM->pStack);
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outb(port,c);
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}
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/*
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* inb ( port# -- c )
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* Fetch a byte from I/O port number port#
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*/
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void
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ficlInb(FICL_VM *pVM)
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{
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u_char c;
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u_int32_t port;
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port=stackPopUNS(pVM->pStack);
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c=inb(port);
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stackPushINT(pVM->pStack,c);
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}
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#endif
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#endif
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/*
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** Stub function for dictionary access control - does nothing
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** by default, user can redefine to guarantee exclusive dict
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** access to a single thread for updates. All dict update code
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** is guaranteed to be bracketed as follows:
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** ficlLockDictionary(TRUE);
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** <code that updates dictionary>
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** ficlLockDictionary(FALSE);
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**
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** Returns zero if successful, nonzero if unable to acquire lock
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** befor timeout (optional - could also block forever)
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*/
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#if FICL_MULTITHREAD
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int ficlLockDictionary(short fLock)
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{
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IGNORE(fLock);
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return 0;
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}
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#endif /* FICL_MULTITHREAD */
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