Changed the handling of variadic intrinsics a bit. Removed the -fp80 option and made real be 80bit floats on X86, this is what the D spec really says it should be and fixes a bunch of issues. Changed the handling of parameter attributes to a bit more generalized approach. Added sext/zext attributes for byte/short/ubyte/ushort parameters, fixes #60 . Parameter attribs now properly set for intrinsic calls if necessary. Made the tango.math.Math patch less intrusive. Fixed/added some mini tests.

module tangotests.asm3;

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

void main()
{
    char* fmt = "Hello D World\n";
    printf(fmt);
    asm
    {
        push fmt;
        call printf;
        pop EAX;
    }
}