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48 lines
535 B
ArmAsm
48 lines
535 B
ArmAsm
/*
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* $Id$
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*/
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/*
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* void *memset (void *src, int val, size_t count)
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*/
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.globl _memset
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_memset:
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push %ebp
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mov %esp,%ebp
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push %edi
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mov 0x8(%ebp),%edi
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movzb 0xc(%ebp),%eax
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mov 0x10(%ebp),%ecx
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cld
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cmp $16,%ecx
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jb .L1
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mov $0x01010101,%edx
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mul %edx
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mov %ecx,%edx
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test $3,%edi
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je .L2
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mov %edi,%ecx
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and $3,%ecx
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sub $5,%ecx
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not %ecx
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sub %ecx,%edx
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rep stosb
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mov %edx,%ecx
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.L2:
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shr $2,%ecx
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rep stosl
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mov %edx,%ecx
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and $3,%ecx
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.L1:
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test %ecx,%ecx
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je .L3
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rep stosb
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.L3:
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pop %edi
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mov 0x8(%ebp),%eax
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leave
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ret
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