* Copyright (c) 1988 Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
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* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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#if defined(LIBC_SCCS) && !defined(lint)
.asciz "@(#)_setjmp.s 5.1 (Berkeley) 1/30/91"
#endif /* LIBC_SCCS and not lint */
* C library -- _setjmp, _longjmp
* will generate a "return(v)" from
* by restoring registers from the stack,
* The previous signal state is NOT restored.
movl (fp),(r0) # save frame pointer of caller
movl -8(fp),4(r0) # save pc of caller
movl 8(fp),r0 # return(v)
movl 4(fp),r1 # fetch buffer
cmpb *-8(fp),reiins # returning to an "rei"?
movab 3f,-8(fp) # do return w/ psl-pc pop
movab 4f,-8(fp) # do standard return
ret # unwind stack before signals enabled
addl2 $8,sp # compensate for PSL-PC push
jmp *4(r1) # done, return....