超级玉米人の部屋

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.intel_syntax noprefix
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.data
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  char_endline:
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    .ascii "\n"
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    char_endline_len = . - char_endline
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  char_buf_1: .byte 0             # char 缓冲区 大小1
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  char_buf_1ln: .byte 0, 0x0a     # char 缓冲区 大小2 + (换行符)
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.text
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# print 函数 实现原型
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.global asm_print
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.type asm_print, @function
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__asm_print_old:
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  # push address[msg]
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  # push msg_len
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  mov rax, 1
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  mov rdi, 1
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  mov rsi, [rsp + 16]
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  mov rdx, [rsp + 8]
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  syscall
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  ret 16
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.global __asm_func_print_stack
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.type __asm_func_print_stack, @function
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__asm_func_print_stack:
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  push rbp
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  mov rbp, rsp
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  mov rax, 1
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  mov rdi, 1
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  mov rsi, [rbp + 24]
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  mov rdx, [rbp + 16]
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  syscall
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  leave
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  ret 16
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# 打印字符
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.macro asm_print _str _str_len
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  push offset \_str
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  push \_str_len
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  call __asm_func_print_stack
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.endm
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# 打印字符并在末尾添加换行
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.macro asm_println _str _str_len
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  push offset \_str
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  push \_str_len
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  call __asm_print
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  push offset char_endline
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  push char_endline_len
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  call __asm_func_print_stack
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.endm