/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
*
* File: sys/ppc/_longjmp.s
*
* Implements _longjmp()
*
* History:
* 8 September 1998 Matt Watson (mwatson@apple.com)
* Created. Derived from longjmp.s
*/
/* We use mode-independent "g" opcodes such as "lg", and/or
* mode-independent macros such as MI_CALL_EXTERNAL. These expand
* into word operations when targeting __ppc__, and into doubleword
* operations when targeting __ppc64__.
*/
#include <architecture/ppc/mode_independent_asm.h>
#include "_setjmp.h"
#define __APPLE_API_PRIVATE
#include <machine/cpu_capabilities.h>
#undef __APPLE_API_PRIVATE
#define VRSave 256
/* int _longjmp(jmp_buf env, int val)MI_ENTRY_POINT(__longjmp)
lg r6,JMP_addr_at_setjmp(r3)
lbz r7, _COMM_PAGE_ALTIVEC(0)
cmpg cr1,r3,r6 beq++ cr1,LRestoreVRs
stg r3,JMP_addr_at_setjmp(r3) mr r30,r3 addi r4,r6,JMP_vr_base_addr
clrrgi r3,r3,4 sub r7,r4,r6 li r5,(JMP_buf_end - JMP_vr_base_addr)
MI_CALL_EXTERNAL(_memmove)
mr r3,r30
LRestoreVRs:
lg r0,JMP_vrsave(r3) beq-- cr2,LRestoreFPRs mtspr VRSave,r0 lvx v20,0,r6
li r7,16*1
lvx v21,r7,r6
li r7,16*2
lvx v22,r7,r6
li r7,16*3
lvx v23,r7,r6
li r7,16*4
lvx v24,r7,r6
li r7,16*5
lvx v25,r7,r6
li r7,16*6
lvx v26,r7,r6
li r7,16*7
lvx v27,r7,r6
li r7,16*8
lvx v28,r7,r6
li r7,16*9
lvx v29,r7,r6
li r7,16*10
lvx v30,r7,r6
li r7,16*11
lvx v31,r7,r6
LRestoreFPRs:
addi r6,r3,JMP_fp_base_addr
lfd f0,JMP_fpscr(r3) lfd f14,0*8(r6)
lfd f15,1*8(r6)
lfd f16,2*8(r6)
lfd f17,3*8(r6)
lfd f18,4*8(r6)
lfd f19,5*8(r6)
lfd f20,6*8(r6)
lfd f21,7*8(r6)
lfd f22,8*8(r6)
lfd f23,9*8(r6)
lfd f24,10*8(r6)
lfd f25,11*8(r6)
lfd f26,12*8(r6)
lfd f27,13*8(r6)
lfd f28,14*8(r6)
lfd f29,15*8(r6)
lfd f30,16*8(r6)
lfd f31,17*8(r6)
mtfsf 0xFF,f0 lg r5, JMP_cr(r3) cmplgi r4,0 lg r2, JMP_r2 (r3)
lg r13, JMP_r13(r3)
lg r14, JMP_r14(r3)
lg r15, JMP_r15(r3)
lg r16, JMP_r16(r3)
lg r17, JMP_r17(r3)
mtcrf 0x20,r5 lg r19, JMP_r19(r3)
lg r20, JMP_r20(r3)
lg r21, JMP_r21(r3)
mtctr r6 lg r23, JMP_r23(r3)
lg r24, JMP_r24(r3)
lg r25, JMP_r25(r3)
mtcrf 0x10,r5 lg r27, JMP_r27(r3)
lg r28, JMP_r28(r3)
lg r29, JMP_r29(r3)
mtcrf 0x08,r5 lg r31, JMP_r31(r3)
mr r3,r4 li r3, 1