############################################################################## # 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