.global __udivsi3 | |
.section .text..SHmedia32,"ax" | |
.align 2 | |
/* | |
inputs: r4,r5 | |
clobbered: r18,r19,r20,r21,r22,r25,tr0 | |
result in r0. | |
*/ | |
__udivsi3: | |
addz.l r5,r63,r22 | |
nsb r22,r0 | |
shlld r22,r0,r25 | |
shlri r25,48,r25 | |
movi 0xffffffffffffbb0c,r20 /* shift count eqiv 76 */ | |
sub r20,r25,r21 | |
mmulfx.w r21,r21,r19 | |
mshflo.w r21,r63,r21 | |
ptabs r18,tr0 | |
mmulfx.w r25,r19,r19 | |
sub r20,r0,r0 | |
/* bubble */ | |
msub.w r21,r19,r19 | |
/* | |
* It would be nice for scheduling to do this add to r21 before | |
* the msub.w, but we need a different value for r19 to keep | |
* errors under control. | |
*/ | |
addi r19,-2,r21 | |
mulu.l r4,r21,r18 | |
mmulfx.w r19,r19,r19 | |
shlli r21,15,r21 | |
shlrd r18,r0,r18 | |
mulu.l r18,r22,r20 | |
mmacnfx.wl r25,r19,r21 | |
/* bubble */ | |
sub r4,r20,r25 | |
mulu.l r25,r21,r19 | |
addi r0,14,r0 | |
/* bubble */ | |
shlrd r19,r0,r19 | |
mulu.l r19,r22,r20 | |
add r18,r19,r18 | |
/* bubble */ | |
sub.l r25,r20,r25 | |
mulu.l r25,r21,r19 | |
addz.l r25,r63,r25 | |
sub r25,r22,r25 | |
shlrd r19,r0,r19 | |
mulu.l r19,r22,r20 | |
addi r25,1,r25 | |
add r18,r19,r18 | |
cmpgt r25,r20,r25 | |
add.l r18,r25,r0 | |
blink tr0,r63 |