48 lines
889 B
C
48 lines
889 B
C
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/*
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bcmp(s1, s2, len) returns 0 if the "len" bytes starting at "s1" are
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identical to the "len" bytes starting at "s2", non-zero if they are
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different.
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Now only used with purify.
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*/
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#include <global.h>
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#include "m_string.h"
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#if !defined(bcmp) && !defined(HAVE_BCMP)
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#if defined(MC68000) && defined(DS90)
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int bcmp(s1,s2, len)
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const char *s1;
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const char *s2;
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uint len; /* 0 <= len <= 65535 */
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{
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asm(" movl 12(a7),d0 ");
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asm(" subqw #1,d0 ");
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asm(" blt .L5 ");
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asm(" movl 4(a7),a1 ");
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asm(" movl 8(a7),a0 ");
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asm(".L4: cmpmb (a0)+,(a1)+ ");
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asm(" dbne d0,.L4 ");
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asm(".L5: addqw #1,d0 ");
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}
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#else
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#ifdef HAVE_purify
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int my_bcmp(s1, s2, len)
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#else
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int bcmp(s1, s2, len)
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#endif
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register const char *s1;
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register const char *s2;
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register uint len;
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{
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while (len-- != 0 && *s1++ == *s2++) ;
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return len+1;
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}
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#endif
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#endif /* BSD_FUNCS */
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