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24 lines
508 B
ArmAsm
24 lines
508 B
ArmAsm
/* strncpy() Author: Kees J. Bot */
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/* 1 Jan 1994 */
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/* char *strncpy(char *s1, const char *s2, size_t n) */
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/* Copy string s2 to s1. */
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/* */
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#include "asm.h"
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ENTRY(strncpy)
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push %ebp
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movl %esp, %ebp
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push %esi
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push %edi
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movl 16(%ebp), %ecx /* Maximum length */
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call _C_LABEL(_strncpy) /* Common code */
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movl %edx, %ecx /* Number of bytes not copied */
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rep stosb /* strncpy always copies n bytes by null padding */
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movl 8(%ebp), %eax /* Return s1 */
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pop %edi
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pop %esi
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pop %ebp
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ret
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