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| | .global _longjmp
.global longjmp
.type _longjmp,@function
.type longjmp,@function
_longjmp:
longjmp:
# 0) move old return address into the link register
ld 0, 0*8(3)
mtlr 0
# 1) restore cr
ld 0, 1*8(3)
mtcr 0
# 2) restore SP
ld 1, 2*8(3)
# 3) restore TOC into both r2 and the caller's stack.
# Which location is required depends on whether setjmp was called
# locally or non-locally, but it's always safe to restore to both.
ld 2, 3*8(3)
std 2, 24(1)
# 4) restore r14-r31
ld 14, 4*8(3)
ld 15, 5*8(3)
ld 16, 6*8(3)
ld 17, 7*8(3)
ld 18, 8*8(3)
ld 19, 9*8(3)
ld 20, 10*8(3)
ld 21, 11*8(3)
ld 22, 12*8(3)
ld 23, 13*8(3)
ld 24, 14*8(3)
ld 25, 15*8(3)
ld 26, 16*8(3)
ld 27, 17*8(3)
ld 28, 18*8(3)
ld 29, 19*8(3)
ld 30, 20*8(3)
ld 31, 21*8(3)
# 5) restore floating point registers f14-f31
lfd 14, 22*8(3)
lfd 15, 23*8(3)
lfd 16, 24*8(3)
lfd 17, 25*8(3)
lfd 18, 26*8(3)
lfd 19, 27*8(3)
lfd 20, 28*8(3)
lfd 21, 29*8(3)
lfd 22, 30*8(3)
lfd 23, 31*8(3)
lfd 24, 32*8(3)
lfd 25, 33*8(3)
lfd 26, 34*8(3)
lfd 27, 35*8(3)
lfd 28, 36*8(3)
lfd 29, 37*8(3)
lfd 30, 38*8(3)
lfd 31, 39*8(3)
# 6) restore vector registers v20-v31 if hardware supports AltiVec
mflr 0
bl 1f
.hidden __hwcap
.long __hwcap-.
1: mflr 4
lwz 5, 0(4)
add 4, 4, 5
ld 4, 0(4)
andis. 4, 4, 0x1000
beq 1f
addi 3, 3, 40*8
lvx 20, 0, 3 ; addi 3, 3, 16
lvx 21, 0, 3 ; addi 3, 3, 16
lvx 22, 0, 3 ; addi 3, 3, 16
lvx 23, 0, 3 ; addi 3, 3, 16
lvx 24, 0, 3 ; addi 3, 3, 16
lvx 25, 0, 3 ; addi 3, 3, 16
lvx 26, 0, 3 ; addi 3, 3, 16
lvx 27, 0, 3 ; addi 3, 3, 16
lvx 28, 0, 3 ; addi 3, 3, 16
lvx 29, 0, 3 ; addi 3, 3, 16
lvx 30, 0, 3 ; addi 3, 3, 16
lvx 31, 0, 3
1: mtlr 0
# 7) return r4 ? r4 : 1
mr 3, 4
cmpwi cr7, 4, 0
bne cr7, 1f
li 3, 1
1:
blr
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