mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-28 05:51:04 +00:00
33 lines
528 B
C
33 lines
528 B
C
|
|
extern char _start_bss;
|
|
extern char end;
|
|
extern char stack;
|
|
|
|
static zeroandrun();
|
|
#pragma noprolog
|
|
|
|
start()
|
|
{
|
|
asm("mov.w #%off(_stack),sp");
|
|
/* asm("ldc.w #0x700,sr");*/
|
|
asm("ldc.b #%page(_stack),tp");
|
|
asm("ldc.b #%page(_stack),dp");
|
|
asm("ldc.b #%page(_stack),ep");
|
|
/* Can't have anything else in here, since the fp won't be set up
|
|
so local variables won't work */
|
|
zeroandrun();
|
|
}
|
|
|
|
static
|
|
zeroandrun()
|
|
{
|
|
char *p;
|
|
p = &_start_bss;
|
|
while (p < &end)
|
|
{
|
|
*p++ = 0;
|
|
}
|
|
main();
|
|
_exit();
|
|
}
|