5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
67 lines
1015 B
ArmAsm
67 lines
1015 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0
|
|
|
|
Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
|
|
2004, 2005
|
|
Free Software Foundation, Inc.
|
|
*/
|
|
|
|
!! libgcc routines for the Renesas / SuperH SH CPUs.
|
|
!! Contributed by Steve Chamberlain.
|
|
!! sac@cygnus.com
|
|
|
|
.balign 4
|
|
.global __udivsi3
|
|
.type __udivsi3, @function
|
|
div8:
|
|
div1 r5,r4
|
|
div7:
|
|
div1 r5,r4; div1 r5,r4; div1 r5,r4
|
|
div1 r5,r4; div1 r5,r4; div1 r5,r4; rts; div1 r5,r4
|
|
|
|
divx4:
|
|
div1 r5,r4; rotcl r0
|
|
div1 r5,r4; rotcl r0
|
|
div1 r5,r4; rotcl r0
|
|
rts; div1 r5,r4
|
|
|
|
__udivsi3:
|
|
sts.l pr,@-r15
|
|
extu.w r5,r0
|
|
cmp/eq r5,r0
|
|
bf/s large_divisor
|
|
div0u
|
|
swap.w r4,r0
|
|
shlr16 r4
|
|
bsr div8
|
|
shll16 r5
|
|
bsr div7
|
|
div1 r5,r4
|
|
xtrct r4,r0
|
|
xtrct r0,r4
|
|
bsr div8
|
|
swap.w r4,r4
|
|
bsr div7
|
|
div1 r5,r4
|
|
lds.l @r15+,pr
|
|
xtrct r4,r0
|
|
swap.w r0,r0
|
|
rotcl r0
|
|
rts
|
|
shlr16 r5
|
|
|
|
large_divisor:
|
|
mov #0,r0
|
|
xtrct r4,r0
|
|
xtrct r0,r4
|
|
bsr divx4
|
|
rotcl r0
|
|
bsr divx4
|
|
rotcl r0
|
|
bsr divx4
|
|
rotcl r0
|
|
bsr divx4
|
|
rotcl r0
|
|
lds.l @r15+,pr
|
|
rts
|
|
rotcl r0
|