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https://github.com/fail0verflow/switch-coreboot.git
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534f6d31be
Some updates to the docs, but these will change more. add memcmp. Crude implementation, but it really does not matter. add compute_ip_checksum.c mods to elfboot. Thanks to our new design, BOUNCE BUFFERS ARE DEAD. Yee ha! updates to makefile Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@96 f3766cd6-281f-0410-b1cd-43a5c92072e9
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* mem -- simple routines that have no optimizations for anything
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*
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*
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* Copright (C) 2007 Ronald G. Minnich <rminnich@gmail.com>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*
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*/
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/* this one is pretty stupid. Won't handle overlaps, it's not efficient, etc. */
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/* Please don't be silly and inline these. Inlines are not as wonderful as people think */
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void memcpy(void *dest, const void *src, int len)
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{
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unsigned char *d = dest;
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const unsigned char *s = src;
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while (len--)
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*d++ = *s++;
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}
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void memset(void *v, unsigned char a, int len)
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{
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unsigned char *cp = v;
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while(len--)
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*cp++ = a;
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}
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/* did you ever notice that the memcmp web page does not specify
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* a signed or unsigned compare? It matters ... oh well, we assumed unsigned
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*/
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int memcmp(const void *s1, const void *s2, size_t n)
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{
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const unsigned char *d = s1
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const unsigned char *s = s2;
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while (len--){
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if (*d < *s)
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return -1;
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if (*d > *s)
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return 1;
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d++, s++;
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}
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return 0;
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}
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