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/*
* Copyright (C) 1996 Paul Mackerras.
*
* NB this file must be compiled with -O2.
*/
int
xmon_setjmp(long *buf)
{
asm ("mflr 0; stw 0,0(%0);"
"stw 1,4(%0); stw 2,8(%0);"
"mfcr 0; stw 0,12(%0);"
"stmw 13,16(%0)"
: : "r" (buf));
/* XXX should save fp regs as well */
return 0;
}
void
xmon_longjmp(long *buf, int val)
{
if (val == 0)
val = 1;
asm ("lmw 13,16(%0);"
"lwz 0,12(%0); mtcrf 0x38,0;"
"lwz 0,0(%0); lwz 1,4(%0); lwz 2,8(%0);"
"mtlr 0; mr 3,%1"
: : "r" (buf), "r" (val));
}
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