193 lines
2.7 KiB
ArmAsm
193 lines
2.7 KiB
ArmAsm
.file "string.c"
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.text
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.p2align 4,,15
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.globl strlen
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.type strlen, @function
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strlen:
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.LFB2:
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.cfi_startproc
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movq %rdi, %rax
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.p2align 4,,10
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.p2align 3
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.L2:
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addq $1, %rax
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cmpb $0, -1(%rax)
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jne .L2
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subq %rdi, %rax
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subq $1, %rax
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ret
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.cfi_endproc
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.LFE2:
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.size strlen, .-strlen
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.p2align 4,,15
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.globl strcpy
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.type strcpy, @function
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strcpy:
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.LFB3:
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.cfi_startproc
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movq %rdi, %rax
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movq %rdi, %rdx
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.p2align 4,,10
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.p2align 3
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.L6:
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addq $1, %rsi
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movzbl -1(%rsi), %ecx
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addq $1, %rdx
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testb %cl, %cl
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movb %cl, -1(%rdx)
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jne .L6
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rep ret
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.cfi_endproc
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.LFE3:
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.size strcpy, .-strcpy
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.p2align 4,,15
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.globl strncpy
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.type strncpy, @function
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strncpy:
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.LFB4:
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.cfi_startproc
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testq %rdx, %rdx
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movq %rdi, %rax
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je .L9
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movzbl (%rsi), %r8d
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xorl %ecx, %ecx
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testb %r8b, %r8b
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jne .L11
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jmp .L12
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.p2align 4,,10
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.p2align 3
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.L20:
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movzbl (%rsi,%rcx), %r8d
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testb %r8b, %r8b
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je .L12
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.L11:
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movb %r8b, (%rax,%rcx)
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addq $1, %rcx
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cmpq %rcx, %rdx
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jne .L20
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.L9:
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rep ret
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.p2align 4,,10
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.p2align 3
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.L12:
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addq $1, %rcx
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cmpq %rcx, %rdx
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movb $0, -1(%rax,%rcx)
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jbe .L9
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addq $1, %rcx
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cmpq %rcx, %rdx
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movb $0, -1(%rax,%rcx)
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ja .L12
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jmp .L9
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.cfi_endproc
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.LFE4:
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.size strncpy, .-strncpy
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.p2align 4,,15
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.globl xstrcnpy
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.type xstrcnpy, @function
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xstrcnpy:
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.LFB5:
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.cfi_startproc
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testq %rdx, %rdx
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je .L22
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movzbl (%rsi), %ecx
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xorl %eax, %eax
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testb %cl, %cl
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jne .L24
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jmp .L25
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.p2align 4,,10
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.p2align 3
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.L33:
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movzbl (%rsi,%rax), %ecx
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testb %cl, %cl
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je .L25
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.L24:
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movb %cl, (%rdi,%rax)
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addq $1, %rax
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cmpq %rax, %rdx
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jne .L33
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.L22:
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movl $1, %eax
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ret
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.p2align 4,,10
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.p2align 3
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.L25:
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addq $1, %rax
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cmpq %rax, %rdx
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movb $0, -1(%rdi,%rax)
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jbe .L22
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addq $1, %rax
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cmpq %rax, %rdx
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movb $0, -1(%rdi,%rax)
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ja .L25
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jmp .L22
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.cfi_endproc
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.LFE5:
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.size xstrcnpy, .-xstrcnpy
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.p2align 4,,15
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.globl strrev
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.type strrev, @function
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strrev:
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.LFB6:
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.cfi_startproc
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movq %rdi, %rax
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movq %rsi, %rdx
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.p2align 4,,10
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.p2align 3
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.L35:
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addq $1, %rdx
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cmpb $0, -1(%rdx)
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jne .L35
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subq %rsi, %rdx
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movb $0, -1(%rax,%rdx)
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leaq -2(%rsi,%rdx), %rcx
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movq %rax, %rdx
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.p2align 4,,10
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.p2align 3
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.L36:
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movzbl (%rcx), %esi
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addq $1, %rdx
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subq $1, %rcx
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testb %sil, %sil
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movb %sil, -1(%rdx)
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jne .L36
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rep ret
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.cfi_endproc
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.LFE6:
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.size strrev, .-strrev
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.p2align 4,,15
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.globl reverse
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.type reverse, @function
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reverse:
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.LFB7:
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.cfi_startproc
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movq %rdi, %rax
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movq %rdi, %rdx
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.p2align 4,,10
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.p2align 3
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.L40:
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addq $1, %rdx
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cmpb $0, -1(%rdx)
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jne .L40
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subq $2, %rdx
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cmpq %rdx, %rax
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jnb .L41
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movq %rax, %rcx
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.p2align 4,,10
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.p2align 3
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.L42:
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movzbl (%rdx), %esi
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movzbl (%rcx), %r8d
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subq $1, %rdx
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addq $1, %rcx
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cmpq %rcx, %rdx
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movb %r8b, 1(%rdx)
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movb %sil, -1(%rcx)
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ja .L42
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.L41:
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rep ret
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.cfi_endproc
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.LFE7:
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.size reverse, .-reverse
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.ident "GCC: (GNU) 7.3.0"
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