1 .global _longjmp 2 .global longjmp 3 .type _longjmp,@function 4 .type longjmp,@function 5_longjmp: 6longjmp: 7 # 0) move old return address into the link register 8 ld 0, 0*8(3) 9 mtlr 0 10 # 1) restore cr 11 ld 0, 1*8(3) 12 mtcr 0 13 # 2) restore r1-r2 (SP and TOC) 14 ld 1, 2*8(3) 15 ld 2, 3*8(3) 16 # 3) restore r14-r31 17 ld 14, 4*8(3) 18 ld 15, 5*8(3) 19 ld 16, 6*8(3) 20 ld 17, 7*8(3) 21 ld 18, 8*8(3) 22 ld 19, 9*8(3) 23 ld 20, 10*8(3) 24 ld 21, 11*8(3) 25 ld 22, 12*8(3) 26 ld 23, 13*8(3) 27 ld 24, 14*8(3) 28 ld 25, 15*8(3) 29 ld 26, 16*8(3) 30 ld 27, 17*8(3) 31 ld 28, 18*8(3) 32 ld 29, 19*8(3) 33 ld 30, 20*8(3) 34 ld 31, 21*8(3) 35 # 4) restore floating point registers f14-f31 36 lfd 14, 22*8(3) 37 lfd 15, 23*8(3) 38 lfd 16, 24*8(3) 39 lfd 17, 25*8(3) 40 lfd 18, 26*8(3) 41 lfd 19, 27*8(3) 42 lfd 20, 28*8(3) 43 lfd 21, 29*8(3) 44 lfd 22, 30*8(3) 45 lfd 23, 31*8(3) 46 lfd 24, 32*8(3) 47 lfd 25, 33*8(3) 48 lfd 26, 34*8(3) 49 lfd 27, 35*8(3) 50 lfd 28, 36*8(3) 51 lfd 29, 37*8(3) 52 lfd 30, 38*8(3) 53 lfd 31, 39*8(3) 54 55 # 5) restore vector registers v20-v31 56 addi 3, 3, 40*8 57 lvx 20, 0, 3 ; addi 3, 3, 16 58 lvx 21, 0, 3 ; addi 3, 3, 16 59 lvx 22, 0, 3 ; addi 3, 3, 16 60 lvx 23, 0, 3 ; addi 3, 3, 16 61 lvx 24, 0, 3 ; addi 3, 3, 16 62 lvx 25, 0, 3 ; addi 3, 3, 16 63 lvx 26, 0, 3 ; addi 3, 3, 16 64 lvx 27, 0, 3 ; addi 3, 3, 16 65 lvx 28, 0, 3 ; addi 3, 3, 16 66 lvx 29, 0, 3 ; addi 3, 3, 16 67 lvx 30, 0, 3 ; addi 3, 3, 16 68 lvx 31, 0, 3 69 70 # 6) return r4 ? r4 : 1 71 mr 3, 4 72 cmpwi cr7, 4, 0 73 bne cr7, 1f 74 li 3, 1 751: 76 blr 77 78