184ed5f988
Massive update. The highlights: o dramatically cut memory usage by writing better, less intertwingled code. o implement booting off mmc/sd cards (sd only tested one at the moment) o start to split out board specific stuff for boot2.
134 lines
4.0 KiB
C
134 lines
4.0 KiB
C
/*-
|
|
* Copyright (c) 2006 M. Warner Losh. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* This software is derived from software provide by Kwikbyte who specifically
|
|
* disclaimed copyright on the code.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/******************************************************************************
|
|
*
|
|
* Filename: p_string.c
|
|
*
|
|
* Instantiation of basic string operations to prevent inclusion of full
|
|
* string library. These are simple implementations not necessarily optimized
|
|
* for speed, but rather to show intent.
|
|
*
|
|
* Revision information:
|
|
*
|
|
* 20AUG2004 kb_admin initial creation
|
|
* 12JAN2005 kb_admin minor updates
|
|
*
|
|
* BEGIN_KBDD_BLOCK
|
|
* No warranty, expressed or implied, is included with this software. It is
|
|
* provided "AS IS" and no warranty of any kind including statutory or aspects
|
|
* relating to merchantability or fitness for any purpose is provided. All
|
|
* intellectual property rights of others is maintained with the respective
|
|
* owners. This software is not copyrighted and is intended for reference
|
|
* only.
|
|
* END_BLOCK
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include "lib.h"
|
|
|
|
/*
|
|
* .KB_C_FN_DEFINITION_START
|
|
* int p_IsWhiteSpace(char)
|
|
* This global function returns true if the character is not considered
|
|
* a non-space character.
|
|
* .KB_C_FN_DEFINITION_END
|
|
*/
|
|
int
|
|
p_IsWhiteSpace(char cValue)
|
|
{
|
|
return ((cValue == ' ') ||
|
|
(cValue == '\t') ||
|
|
(cValue == 0) ||
|
|
(cValue == '\r') ||
|
|
(cValue == '\n'));
|
|
}
|
|
|
|
|
|
/*
|
|
* .KB_C_FN_DEFINITION_START
|
|
* unsigned p_HexCharValue(char)
|
|
* This global function returns the decimal value of the validated hex char.
|
|
* .KB_C_FN_DEFINITION_END
|
|
*/
|
|
unsigned
|
|
p_HexCharValue(char cValue)
|
|
{
|
|
if (cValue < ('9' + 1))
|
|
return (cValue - '0');
|
|
if (cValue < ('F' + 1))
|
|
return (cValue - 'A' + 10);
|
|
return (cValue - 'a' + 10);
|
|
}
|
|
|
|
/*
|
|
* .KB_C_FN_DEFINITION_START
|
|
* unsigned p_ASCIIToHex(char *)
|
|
* This global function set the unsigned value equal to the converted
|
|
* hex number passed as a string. No error checking is performed; the
|
|
* string must be valid hex value, point at the start of string, and be
|
|
* NULL-terminated.
|
|
* .KB_C_FN_DEFINITION_END
|
|
*/
|
|
unsigned
|
|
p_ASCIIToHex(const char *buf)
|
|
{
|
|
unsigned lValue = 0;
|
|
|
|
if ((*buf == '0') && ((buf[1] == 'x') || (buf[1] == 'X')))
|
|
buf += 2;
|
|
|
|
while (*buf) {
|
|
lValue <<= 4;
|
|
lValue += p_HexCharValue(*buf++);
|
|
}
|
|
return (lValue);
|
|
}
|
|
|
|
|
|
/*
|
|
* .KB_C_FN_DEFINITION_START
|
|
* unsigned p_ASCIIToDec(char *)
|
|
* This global function set the unsigned value equal to the converted
|
|
* decimal number passed as a string. No error checking is performed; the
|
|
* string must be valid decimal value, point at the start of string, and be
|
|
* NULL-terminated.
|
|
* .KB_C_FN_DEFINITION_END
|
|
*/
|
|
unsigned
|
|
p_ASCIIToDec(const char *buf)
|
|
{
|
|
unsigned v = 0;
|
|
|
|
while (*buf) {
|
|
v *= 10;
|
|
v += (*buf++) - '0';
|
|
}
|
|
return (v);
|
|
}
|