source: buchla-68k/libsm/memcmp.c@ dade7a0

Last change on this file since dade7a0 was dade7a0, checked in by Thomas Lopatic <thomas@…>, 8 years ago

No more warnings in libsm.
  • Property mode set to 100644
File size: 521 bytes
Line 
1/*
2 =============================================================================
3 memcmp.c -- compare memory areas
4 Version 2 -- 1987-06-15
5
6 Compare n bytes: vp1>vp2: >0 vp1==vp2: 0 vp1<vp2: <0
7 =============================================================================
8*/
9
10#include "ram.h"
11
12int16_t memcmp(void *vp1, void *vp2, int16_t n)
13{
14 int8_t *cp1 = vp1;
15 int8_t *cp2 = vp2;
16 register int16_t diff;
17
18 if (cp1 != cp2)
19 while (--n >= 0)
20 if ((diff = *cp1++ - *cp2++))
21 return(diff);
22
23 return(0);
24}
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