view tests/mini/asm1.d @ 920:545f54041d91

Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :) Fixed align N; in asm blocks. Fixed inreg parameter passing on x86 for ref/out params. Removed support for lazy initialization of function local static variables, I have no idea why I ever implemented this, it's not in the D spec, and DMD doesn't support it :P Some of the global variable related changes might cause minor regressions, but they should be easily fixable.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 03 Feb 2009 08:54:57 +0100
parents a58784e0f035
children 4c524d80e6e1
line wrap: on
line source

module asm1;

extern(C) int printf(char*, ...);

void main()
{
    version(LLVM_InlineAsm_X86)
    {
	int x;
	asm
	{
	    mov EAX, 42;
	    mov x, EAX;
	}
	printf("x = %d\n", x);
    }
    else version(LLVM_InlineAsm_X86_64)
    {
        long x;
        asm
        {
            movq RAX, 42L;
            movq x, RAX;
        }
        printf("x = %ld\n", x);
    }
    else
    {
        static assert(0, "no inline asm for this platform yet");
    }
}