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math.h: make __FLOAT_BITS and __DOUBLE_BITS C89
[musl]
/
src
/
string
/
x86_64
/
memset.s
1
.global memset
2
.type memset,@function
3
memset:
4
and $0xff,%esi
5
mov $0x101010101010101,%rax
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mov %rdx,%rcx
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mov %rdi,%r8
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imul %rsi,%rax
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cmp $16,%rcx
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jb 1f
11
12
mov %rax,-8(%rdi,%rcx)
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shr $3,%rcx
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rep
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stosq
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mov %r8,%rax
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ret
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1: test %ecx,%ecx
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jz 1f
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mov %al,(%rdi)
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mov %al,-1(%rdi,%rcx)
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cmp $2,%ecx
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jbe 1f
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mov %al,1(%rdi)
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mov %al,-2(%rdi,%rcx)
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cmp $4,%ecx
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jbe 1f
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mov %eax,(%rdi)
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mov %eax,-4(%rdi,%rcx)
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cmp $8,%ecx
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jbe 1f
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mov %eax,4(%rdi)
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mov %eax,-8(%rdi,%rcx)
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1: mov %r8,%rax
41
ret