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- / memcpy.s (emx+gcc) -- Copyright (c) 1990-1993 by Eberhard Mattes
-
- .globl _memcpy
-
- / void *memcpy (void *s1, const void *s2, size_t n)
- / {
- / size_t i;
- /
- / for (i = 0; i < n; ++i)
- / ((char *)s1)[i] = ((char *)s2)[i];
- / return (s1);
- / }
-
- / assumes ds=es!
-
- .text
-
- .align 2, 0x90
-
- _memcpy:
- pushl %esi
- pushl %edi
- movl 3*4(%esp), %edi / s1
- movl 4*4(%esp), %esi / s2
- movl 5*4(%esp), %ecx / n
- shrl $2, %ecx
- rep
- movsl
- movl 5*4(%esp), %ecx / n
- andl $3, %ecx
- rep
- movsb
- movl 3*4(%esp), %eax / s1
- popl %edi
- popl %esi
- ret
-