1/*
2 * Copyright (C) 1996 Paul Mackerras.
3 *
4 * NB this file must be compiled with -O2.
5 */
6
7int
8xmon_setjmp(long *buf)
9{
10    asm ("mflr 0; stw 0,0(%0);"
11	 "stw 1,4(%0); stw 2,8(%0);"
12	 "mfcr 0; stw 0,12(%0);"
13	 "stmw 13,16(%0)"
14	 : : "r" (buf));
15    return 0;
16}
17
18void
19xmon_longjmp(long *buf, int val)
20{
21    if (val == 0)
22	val = 1;
23    asm ("lmw 13,16(%0);"
24	 "lwz 0,12(%0); mtcrf 0x38,0;"
25	 "lwz 0,0(%0); lwz 1,4(%0); lwz 2,8(%0);"
26	 "mtlr 0; mr 3,%1"
27	 : : "r" (buf), "r" (val));
28}
29