[taking in Segher as gcc expert]
On 16.10.2008 14:53, Myles Watson wrote:
On Wed, Oct 15, 2008 at 5:44 PM, Carl-Daniel Hailfinger wrote:
On 16.10.2008 01:13, Peter Stuge wrote:
ron minnich wrote:
Myles, try setting -mregparm=0 and see if life is better.
Good find.
__attribute__((stdcall)) will do this for you.
It doesn't work for me. I tried it in various places, but it doesn't change the way the parameters are handled.
void __attribute__ ((stdcall)) callbiosint(void) __attribute__ ((stdcall)) void callbiosint(void) void callbiosint(void) __attribute__ ((stdcall))
biosint: INT# 0x18 biosint: eax 0x2e ebx 0x10000 ecx 0xfe4 edx 0xcf11c biosint: ebp 0xc0000000 esp 0xd0000 edi 0x1a esi 0x0 biosint: ip 0x1022 cs 0xf flags 0x2067 BIOSINT: Unsupport int #0x18
What about __attribute__((regparm(0))) ?
The gcc documentation is not clear on this, but a call made this way should take all of its arguments from the stack.
Segher: How do regparm(0) and stdcall differ for i386?
Regards, Carl-Daniel