Files
Linux_Drivers/linux_5.10/arch/c6x/lib/divremi.S
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

35 lines
668 B
ArmAsm

;; SPDX-License-Identifier: GPL-2.0-or-later
;; Copyright 2010 Free Software Foundation, Inc.
;; Contributed by Bernd Schmidt <bernds@codesourcery.com>.
;;
#include <linux/linkage.h>
.text
ENTRY(__c6xabi_divremi)
stw .d2t2 B3, *B15--[2]
|| cmpgt .l1 0, A4, A1
|| cmpgt .l2 0, B4, B2
|| mv .s1 A4, A5
|| call .s2 __c6xabi_divu
[A1] neg .l1 A4, A4
|| [B2] neg .l2 B4, B4
|| xor .s2x B2, A1, B0
|| mv .d2 B4, B2
[B0] addkpc .s2 _divu_ret_1, B3, 1
[!B0] addkpc .s2 _divu_ret_2, B3, 1
nop 2
_divu_ret_1:
neg .l1 A4, A4
_divu_ret_2:
ldw .d2t2 *++B15[2], B3
mpy32 .m1x A4, B2, A6
nop 3
ret .s2 B3
sub .l1 A5, A6, A5
nop 4
ENDPROC(__c6xabi_divremi)