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##############################################################################
# setjmp.S -- CRX setjmp routine #
# #
# Copyright (c) 2004 National Semiconductor Corporation #
# #
# The authors hereby grant permission to use, copy, modify, distribute, #
# and license this software and its documentation for any purpose, provided #
# that existing copyright notices are retained in all copies and that this #
# notice is included verbatim in any distributions. No written agreement, #
# license, or royalty fee is required for any of the authorized uses. #
# Modifications to this software may be copyrighted by their authors #
# and need not follow the licensing terms described here, provided that #
# the new terms are clearly indicated on the first page of each file where #
# they apply. #
# #
# C library -- setjmp, longjmp #
# longjmp(a,v) #
# will generate a "return(v)" #
# from the last call to #
# setjmp(a) #
# by restoring r7-ra, sp, #
# and pc from 'a' #
# and doing a return. (Makes sure that longjmp never returns 0). #
##############################################################################
.text
.file "setjmp.s"
.align 4
.globl _setjmp
.align 4
_setjmp:
#r2: .blkw
storm r2,{r7,r8,r9,r10,r11,r12,r13,r14}
stord sp,0(r2)
movd $0,r0
jump ra
.globl _longjmp
_longjmp:
#r2: .blkw # pointer save area
#r3: .blkw # ret vlaue
loadm r2, {r7,r8,r9,r10,r11,r12,r13,ra}
loadd 0(r2), sp
movd r3, r0
cmpd $0, r3
bne end1
movd $1, r0
end1:
jump ra
.align 4
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