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| /* SPDX-License-Identifier: GPL-2.0 */
| .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
|
|
