Re: [Freemint-discuss] "r" modifiers in osbind.h & falcon.h

[Thorsten O. <ad...@th...>]

On Donnerstag, 4. April 2024 12:07:55 CEST Miro Kropáček wrote:
> But that requires getting rid of those "short _a = (short)(a);" first

No, that does not matter:

$ cat foo.c

static void test(int x, int y)
{
	short _x = x;
	short _y = y;
	
        __asm__ volatile(
        "movw %0,%%sp@-\n\t"
        "movw %1,%%sp@-\n\t"
        "trap #14\n\t"
        "addq.l #4,%%sp\n"
        :
        : "ri"(_x), "ri"(_y)
        : "d1", "d2", "a0", "a1", "a2", "cc", "memory");
}

void test2(int x)
{
        test(x, 100);
}

$ m68k-atari-mint-gcc -S -O2 -fomit-frame-pointer -o - foo.c

_test2:
        move.l %a2,-(%sp)
        move.l %d2,-(%sp)
        move.l 12(%sp),%d0
        movw %d0,%sp@-
        movw #100,%sp@-
        trap #14
        addq.l #4,%sp
        move.l (%sp)+,%d2
        move.l (%sp)+,%a2
        rts