72 lines
1.1 KiB
PHP
72 lines
1.1 KiB
PHP
;;; rdi should contain the source to copy from
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;;; rsi should contain the destination pointer
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;;; rdx should contain the number of bytes to copy
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copy_mem_to_string:
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cmp rdx, 0
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jz .finish
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mov r8, [rdi]
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mov [rsi], r8
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inc rsi
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inc rdi
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dec rdx
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jmp copy_mem_to_string
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.finish:
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mov byte [rsi], 0
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ret
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;;; rdi should contain the source to copy from
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;;; rsi should contain the destination pointer
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copy_line_to_string:
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mov rax, 0
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.start:
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cmp byte [rdi], 10
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jz .finish
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mov r8, [rdi]
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mov [rsi], r8
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inc rsi
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inc rdi
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inc rax
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jmp copy_line_to_string
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.finish:
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mov byte [rsi], 0
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ret
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;;; rdi should contain the source to copy from
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;;; rsi should contain the destination pointer
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;;; dl should contain the delimiter
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copy_until_token_to_string:
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mov rax, 0
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.start:
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cmp byte [rdi], dl
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jz .finish
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mov r8, [rdi]
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mov [rsi], r8
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inc rsi
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inc rdi
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inc rax
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jmp copy_until_token_to_string
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.finish:
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mov byte [rsi], 0
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ret
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;;; rdi should contain the string to measure
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string_length:
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mov rax, 0
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.start:
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cmp byte [rdi], 0
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jz .finish
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inc rdi
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inc rax
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jmp string_length
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.finish:
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ret
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