UC知道'_NOSSE2' : illegal jump into __try scope
来源：百度知道 编辑：UC知道 时间：2024/06/28 21:20:18
__try {
_asm {
mov eax, 0 // eax=0 => CPUID returns vendor name
CPUID // perform CPUID function
mov esi, pStr
mov [esi], ebx // first 4 chars
mov [esi+4], edx // next for chars
mov [esi+8], ecx // last 4 chars
mov eax, 1 // EAX=1 => CPUID returns feature bits
CPUID // perform CPUID (puts feature info to EDX)
test edx, 04000000h // test bit 26 for SSE2
jz _NOSSE2 // if test failed jump
mov [info.bSSE2], 1 // set to true
_NOSSE2: test edx, 02000000h // test bit 25 for SSE
jz _NOSSE // if test failed jump
mov [info.bSSE], 1 // set to true
_NOSSE: test edx, 00800000h // test bit 23 for MMX
jz _EXIT1 // if test failed jump
m
_asm {
mov eax, 0 // eax=0 => CPUID returns vendor name
CPUID // perform CPUID function
mov esi, pStr
mov [esi], ebx // first 4 chars
mov [esi+4], edx // next for chars
mov [esi+8], ecx // last 4 chars
mov eax, 1 // EAX=1 => CPUID returns feature bits
CPUID // perform CPUID (puts feature info to EDX)
test edx, 04000000h // test bit 26 for SSE2
jz _NOSSE2 // if test failed jump
mov [info.bSSE2], 1 // set to true
_NOSSE2: test edx, 02000000h // test bit 25 for SSE
jz _NOSSE // if test failed jump
mov [info.bSSE], 1 // set to true
_NOSSE: test edx, 00800000h // test bit 23 for MMX
jz _EXIT1 // if test failed jump
m
__try{......}
__excetp(EXCEPTION_EXECUTE_HANDLER)
{......}
异常处理TRY块内部不允许出现 JZ JE JMP之类的跳转命令，解决办法嘛，只能把跳转前后分别TRY一下，确定不会异常了，再运行最终的包含有跳转指令的这段代码。
另一个办法插入高级语言代码，来代替JZ这类跳转，比如：
text eax,0
je lj_j1
上面这俩行放入TRY肯定报错，可改成高级语言
int li_eax=0;
mov li_eax,eax
if (li_eax==0)
{
......
}
这样吧JE跳转转换成高级语言，就可以通过了，上面例子是C的，你自己使用什么语言就转换成对应的高级语言就行了