git: 9front

ref: 82f4d6c720c9ee7706878fd6a9c90c7e527e8ffb
dir: /sys/src/libc/power64/notejmp.c/

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#include <u.h>
#include <libc.h>
#include <ureg.h>

int	__noterestore(void);

void
notejmp(void *vr, jmp_buf j, int ret)
{
	struct Ureg *r = vr;

	/*
	 * song and dance to get around the kernel smashing r3 in noted
	 */
	r->r4 = ret;
	if(ret == 0)
		r->r4 = 1;
	r->r5 = j[JMPBUFPC] - JMPBUFDPC;
	r->pc = (uintptr)__noterestore;
	r->sp = j[JMPBUFSP];
	noted(NCONT);
}