我最近开始在 NASM 程序集中编码，我的问题是我不知道如何以正确的方式访问结构元素。我已经在这个网站和谷歌上搜索了解决方案，但我看到的每个地方人们都有不同的说法。我的程序崩溃了，我感觉问题出在访问结构上。
查看示例代码时：
STRUC Test
.normalValue RESD 1
.address RESD 1
ENDSTRUC
TestStruct:
istruc Test
at Test.normalValue dd ffff0000h
at Test.address dd 01234567h
iend
;Example:
mov eax, TestStruct ; moves pointer to first element to eax
mov eax, [TestStruct] ; moves content of the dereferenced pointer to eax (same as mov eax, ffff0000h)
mov eax, TestStruct
add eax, 4
mov ebx, eax ; moves pointer to the second element (4 because RESD 1)
mov eax, [TestStruct+4] ; moves content of the dereferenced pointer to eax (same as mov eax, 01234567h)
mov ebx, [eax] ; moves content at the address 01234567h to ebx
是对的吗？
感谢帮助
我不知道你是否明白了，但这是我们的代码，经过一些小的修改后就可以工作了。除最后一条外，所有说明均正确mov ebx, [eax]这是预期的，因为您正在尝试访问地址处的内容0x1234567导致SIGSEGV
section .bss
struc Test
normalValue RESD 1
address RESD 1
endstruc
section .data
TestStruct:
istruc Test
at normalValue, dd 0xffff0000
at address, dd 0x01234567
iend
section .text
global _start
_start:
mov eax, TestStruct ; moves pointer to first element to eax
mov eax, [TestStruct] ; moves content of the dereferenced pointer to eax same as mov eax, ffff0000h
mov eax, TestStruct
add eax, 4
mov ebx, eax ; moves pointer to the second element 4 because RESD 1
mov eax, [TestStruct+4] ; moves content of the dereferenced pointer to eax same as mov eax, 01234567h
mov ebx, [eax] ; moves content at the address 01234567h to ebx
逐步编译、链接和运行nasm -f elf64 main.nasm -o main.o; ld main.o -o main; gdb main
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