Question

I’m trying to compile inline assembly (with -fasm-blocks) which works in MSVC, but GCC gives me the junk `(%ebp)+4′ after expression error… Why won’t it accept the syntax and how should I fix this?

uint64_t _tmp = 100;

_asm
{
     //_tmp value may be changed
     //...
     cmp dword ptr _tmp, 100 // Ok
     jnae temp
     cmp dword ptr _tmp + 4, 50 // It seems GCC doesn't want to accept _tmp + 4
     jnae temp
     //...
     temp:
};

Answer 1

You should change it to:

cmp dword ptr [_tmp + 4], 50