;typedef unsigned char ch;
;typedef struct {ch s[256]; ch i; ch j;} state;
;int mv(ch * a, state * b, int c){return c+*a + b->j;}
	.section __TEXT,__text,regular,pure_instructions
	.section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32
.section __TEXT,__text,regular,pure_instructions
	.align 2
	.globl _mv1
.section __TEXT,__text,regular,pure_instructions
	.align 2
_mv1:
;void mv(ch * out, state * s, int n)
;	lbz r6,0(r3)
;	lbz r2,257(r4)
;	add r4,r5,r6
;	add r3,r4,r2
;	blr
lbz r6,256(r4)
lbz r7,257(r4)
subi r3,r3,1

;out in r3, s in r4, n in r5, i in r6, j in r7
mtctr r5 ; move n to CTR
lp:
addi r6,r6,1
andi. r6,r6,255
lbzx r0,r4,r6 ; s[i]
add r7,r7,r0   ; j
andi. r7,r7,255
lbzx r8,r4,r7 ; s[j]
stbx r0,r4,r7
stbx r8,r4,r6
add r2,r0,r8
andi. r2,r2,255
lbzx r2,r4,r2
stbu r2,1(r3)
bc 17,0,lp

stb r6,256(r4)
stb r7,257(r4)
blr