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;
; Port of uClibc for TMS320C6000 DSP architecture
; Copyright (C) 2004 Texas Instruments Incorporated
; Author of TMS320C6000 port: Aurelien Jacquiot
;
; This program is free software; you can redistribute it and/or modify it
; under the terms of the GNU Library General Public License as published by
; the Free Software Foundation; either version 2 of the License, or (at your
; option) any later version.
;
; This program is distributed in the hope that it will be useful, but WITHOUT
; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
; for more details.
;
; You should have received a copy of the GNU Library General Public License
; along with this program; if not, see <http://www.gnu.org/licenses/>.
;
.global setjmp
setjmp:
#if 0
.if 1 /* was: .if (CONFIG_UCLIBC_SHARED == 0) */
MVKL .S1 ___curr_eh_stack_entry,A6
|| SUB .D1X A4,B15,A3
MVKH .S1 ___curr_eh_stack_entry,A6
|| CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case
LDW .D1T1 *A6,A2
.else
MVKL .S2 (___curr_eh_stack_entry - $bss)/4,B6
|| SUB .D1X A4,B15,A3
MVKH .S2 (___curr_eh_stack_entry - $bss)/4,B6
|| CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case
LDW .D2T1 *+B14[B6],A2
.endif
NOP
#else
MVK .S1 0, A0
#endif
MVK .L2 1,B4 ; indicate to ___sigjmp_save to save signal mask
|| MV .D2X A4,B6 ; jmp_buf address
|| STW .D1T2 B3,*+A4(48) ; return address
ADDAW .D1 A2,2,A2
[A0] CMPEQ .L1 A4,A2,A0 ; A0 set if C++ exceptions case
STW .D1T1 A10,*+A4(0)
|| STW .D2T2 B10,*+B6(4)
||[!A0] B .S1 __sigjmp_save ; branch to ___sigjmp_save in 5 cycles
||[A0] B .S2 B3
STW .D1T1 A11,*+A4(8)
|| STW .D2T2 B11,*+B6(12)
STW .D1T1 A12,*+A4(16)
|| STW .D2T2 B12,*+B6(20)
STW .D1T1 A13,*+A4(24)
|| STW .D2T2 B13,*+B6(28)
STW .D1T1 A14,*+A4(32)
|| STW .D2T2 B14,*+B6(36)
STW .D1T1 A15,*+A4(40)
|| STW .D2T2 B15,*+B6(44)
||[A0] ZERO .L1 A4 ; returns 0 for the C++ case
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