mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-21 05:49:19 +08:00
a74181ee01
* libc/sys/h8300hms/_exit.c (_exit, __exit): Slip a magic cookie into registers r1 and r2, so that the simulator can distinguish this trap from a breakpoint trap. Copied from libgloss.
36 lines
682 B
C
36 lines
682 B
C
/* FIXME: which one? */
|
|
|
|
#include <_ansi.h>
|
|
|
|
/* `sleep' is passed an argument in r0 that indicates the reason
|
|
the program is exiting. The format of r0 is defined in devo/include/wait.h.
|
|
*/
|
|
|
|
void
|
|
_DEFUN (_exit,(rc),
|
|
int rc)
|
|
{
|
|
short rc2;
|
|
|
|
rc2 = 0xdead;
|
|
asm("mov.w %0,r1" : : "r" (rc2) : "r1");
|
|
rc2 = 0xbeef;
|
|
asm("mov.w %0,r2" : : "r" (rc2) : "r2");
|
|
rc2 = rc << 8;
|
|
asm("mov.w %0,r0\n\tsleep" : : "r" (rc2) : "r0");
|
|
}
|
|
|
|
void
|
|
_DEFUN (__exit,(rc),
|
|
int rc)
|
|
{
|
|
short rc2;
|
|
|
|
rc2 = 0xdead;
|
|
asm("mov.w %0,r1" : : "r" (rc2) : "r1");
|
|
rc2 = 0xbeef;
|
|
asm("mov.w %0,r2" : : "r" (rc2) : "r2");
|
|
rc2 = rc << 8;
|
|
asm("mov.w %0,r0\n\tsleep" : : "r" (rc2) : "r0");
|
|
}
|