X64 inline asm

[Fyyre]

Originally Posted by jump

Very interesting news. I have read everywhere that inline assmbler isnt possible on x64 architecture.
Could you show us correct syntax for inline assembler which will Intel C++ Compiler accept ?

--
Jump

It is virtually the same as MSVC:

__asm mov rbx, rax;

or

__asm
{
...
}

emit format is:

__asm __emit 0xCC;

sample function:

__declspec(naked) int __fastcall strcmpW(const wchar_t *s1, const wchar_t *s2)
{
	__asm {
	push rdi
	push rsi
	mov rdi, rdx
	mov rsi, rcx
	or rcx, -1
	xor rax, rax
	repne scasw
	not rcx
	mov rdi, rdx
	repe cmpsw
	xor rdx, rdx
	mov ax, [rsi - 2]
	mov dx, [rdi - 2]
	sub rax, rdx
	pop rsi
	pop rdi
	ret
	}
}