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Diffstat (limited to 'src/setjmp/powerpc64/longjmp.s')
-rw-r--r--src/setjmp/powerpc64/longjmp.s77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/setjmp/powerpc64/longjmp.s b/src/setjmp/powerpc64/longjmp.s
new file mode 100644
index 00000000..7f241c2d
--- /dev/null
+++ b/src/setjmp/powerpc64/longjmp.s
@@ -0,0 +1,77 @@
+ .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 r1-r2 (SP and TOC)
+ ld 1, 2*8(3)
+ ld 2, 3*8(3)
+ # 3) 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)
+ # 4) 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)
+
+ # 5) restore vector registers v20-v31
+ 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
+
+ # 6) return r4 ? r4 : 1
+ mr 3, 4
+ cmpwi cr7, 4, 0
+ bne cr7, 1f
+ li 3, 1
+1:
+ blr
+