mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
180ae2037f
This moves in the necessary libgcc bits and kills off the libgcc linking for sh64 kernels as well. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
60 lines
1.1 KiB
ArmAsm
60 lines
1.1 KiB
ArmAsm
.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
|