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/* This is a simple version of setjmp and longjmp for the PowerPC.
Ian Lance Taylor, Cygnus Support, 9 Feb 1994.
Modified by Jeff Johnston, Red Hat Inc. 2 Oct 2001. */
#include "ppc-asm.h"
FUNC_START(setjmp)
#ifdef __ALTIVEC__
addi 3,3,15 # align Altivec to 16 byte boundary
rlwinm 3,3,0,0,27
#else
addi 3,3,7 # align to 8 byte boundary
rlwinm 3,3,0,0,28
#endif
stw 1,0(3) # offset 0
stwu 2,4(3) # offset 4
stwu 13,4(3) # offset 8
stwu 14,4(3) # offset 12
stwu 15,4(3) # offset 16
stwu 16,4(3) # offset 20
stwu 17,4(3) # offset 24
stwu 18,4(3) # offset 28
stwu 19,4(3) # offset 32
stwu 20,4(3) # offset 36
stwu 21,4(3) # offset 40
stwu 22,4(3) # offset 44
stwu 23,4(3) # offset 48
stwu 24,4(3) # offset 52
stwu 25,4(3) # offset 56
stwu 26,4(3) # offset 60
stwu 27,4(3) # offset 64
stwu 28,4(3) # offset 68
stwu 29,4(3) # offset 72
stwu 30,4(3) # offset 76
stwu 31,4(3) # offset 80
mflr 4
stwu 4,4(3) # offset 84
mfcr 4
stwu 4,4(3) # offset 88
# one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
stfdu 14,8(3) # offset 96
stfdu 15,8(3) # offset 104
stfdu 16,8(3) # offset 112
stfdu 17,8(3) # offset 120
stfdu 18,8(3) # offset 128
stfdu 19,8(3) # offset 136
stfdu 20,8(3) # offset 144
stfdu 21,8(3) # offset 152
stfdu 22,8(3) # offset 160
stfdu 23,8(3) # offset 168
stfdu 24,8(3) # offset 176
stfdu 25,8(3) # offset 184
stfdu 26,8(3) # offset 192
stfdu 27,8(3) # offset 200
stfdu 28,8(3) # offset 208
stfdu 29,8(3) # offset 216
stfdu 30,8(3) # offset 224
stfdu 31,8(3) # offset 232
#endif
/* This requires a total of 21 * 4 + 18 * 8 + 4 + 4 + 4
bytes == 60 * 4 bytes == 240 bytes. */
#ifdef __ALTIVEC__
/* save Altivec vrsave and vr20-vr31 registers */
mfspr 4,256 # vrsave register
stwu 4,16(3) # offset 248
addi 3,3,8
stvx 20,0,3 # offset 256
addi 3,3,16
stvx 21,0,3 # offset 272
addi 3,3,16
stvx 22,0,3 # offset 288
addi 3,3,16
stvx 23,0,3 # offset 304
addi 3,3,16
stvx 24,0,3 # offset 320
addi 3,3,16
stvx 25,0,3 # offset 336
addi 3,3,16
stvx 26,0,3 # offset 352
addi 3,3,16
stvx 27,0,3 # offset 368
addi 3,3,16
stvx 28,0,3 # offset 384
addi 3,3,16
stvx 29,0,3 # offset 400
addi 3,3,16
stvx 30,0,3 # offset 416
addi 3,3,16
stvx 31,0,3 # offset 432
/* This requires a total of 240 + 8 + 8 + 12 * 16 == 448 bytes. */
#endif
li 3,0
blr
FUNC_END(setjmp)
FUNC_START(longjmp)
#ifdef __ALTIVEC__
addi 3,3,15 # align Altivec to 16 byte boundary
rlwinm 3,3,0,0,27
#else
addi 3,3,7 # align to 8 byte boundary
rlwinm 3,3,0,0,28
#endif
lwz 1,0(3) # offset 0
lwzu 2,4(3) # offset 4
lwzu 13,4(3) # offset 8
lwzu 14,4(3) # offset 12
lwzu 15,4(3) # offset 16
lwzu 16,4(3) # offset 20
lwzu 17,4(3) # offset 24
lwzu 18,4(3) # offset 28
lwzu 19,4(3) # offset 32
lwzu 20,4(3) # offset 36
lwzu 21,4(3) # offset 40
lwzu 22,4(3) # offset 44
lwzu 23,4(3) # offset 48
lwzu 24,4(3) # offset 52
lwzu 25,4(3) # offset 56
lwzu 26,4(3) # offset 60
lwzu 27,4(3) # offset 64
lwzu 28,4(3) # offset 68
lwzu 29,4(3) # offset 72
lwzu 30,4(3) # offset 76
lwzu 31,4(3) # offset 80
lwzu 5,4(3) # offset 84
mtlr 5
lwzu 5,4(3) # offset 88
mtcrf 255,5
# one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
lfdu 14,8(3) # offset 96
lfdu 15,8(3) # offset 104
lfdu 16,8(3) # offset 112
lfdu 17,8(3) # offset 120
lfdu 18,8(3) # offset 128
lfdu 19,8(3) # offset 136
lfdu 20,8(3) # offset 144
lfdu 21,8(3) # offset 152
lfdu 22,8(3) # offset 160
lfdu 23,8(3) # offset 168
lfdu 24,8(3) # offset 176
lfdu 25,8(3) # offset 184
lfdu 26,8(3) # offset 192
lfdu 27,8(3) # offset 200
lfdu 28,8(3) # offset 208
lfdu 29,8(3) # offset 216
lfdu 30,8(3) # offset 224
lfdu 31,8(3) # offset 232
#endif
#ifdef __ALTIVEC__
/* restore Altivec vrsave and v20-v31 registers */
lwzu 5,16(3) # offset 248
mtspr 256,5 # vrsave
addi 3,3,8
lvx 20,0,3 # offset 256
addi 3,3,16
lvx 21,0,3 # offset 272
addi 3,3,16
lvx 22,0,3 # offset 288
addi 3,3,16
lvx 23,0,3 # offset 304
addi 3,3,16
lvx 24,0,3 # offset 320
addi 3,3,16
lvx 25,0,3 # offset 336
addi 3,3,16
lvx 26,0,3 # offset 352
addi 3,3,16
lvx 27,0,3 # offset 368
addi 3,3,16
lvx 28,0,3 # offset 384
addi 3,3,16
lvx 29,0,3 # offset 400
addi 3,3,16
lvx 30,0,3 # offset 416
addi 3,3,16
lvx 31,0,3 # offset 432
#endif
mr. 3,4
bclr+ 4,2
li 3,1
blr
FUNC_END(longjmp)
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