1 /* SPDX-License-Identifier: GPL-2.0-or-later W !! 1 /* $Id: lshrdi3.S,v 1.1 1999/03/21 06:37:45 davem Exp $ */
2 #include <linux/linkage.h> <<
3 #include <asm/asmmacro.h> <<
4 #include <asm/core.h> <<
5 2
6 #ifdef __XTENSA_EB__ !! 3 #include <asm/cprefix.h>
7 #define uh a2 <<
8 #define ul a3 <<
9 #else <<
10 #define uh a3 <<
11 #define ul a2 <<
12 #endif /* __XTENSA_EB__ */ <<
13 4
14 ENTRY(__lshrdi3) !! 5 .globl C_LABEL(__lshrdi3)
>> 6 C_LABEL(__lshrdi3):
>> 7 cmp %o2, 0
>> 8 be 3f
>> 9 mov 0x20, %g2
15 10
16 abi_entry_default !! 11 sub %g2, %o2, %g2
17 ssr a4 !! 12 cmp %g2, 0
18 bgei a4, 32, .Lhigh_only !! 13 bg 1f
19 src ul, uh, ul !! 14 srl %o0, %o2, %o4
20 srl uh, uh <<
21 abi_ret_default <<
22 15
23 .Lhigh_only: !! 16 clr %o4
24 srl ul, uh !! 17 neg %g2
25 movi uh, 0 !! 18 b 2f
26 abi_ret_default !! 19 srl %o0, %g2, %o5
27 !! 20 1:
28 ENDPROC(__lshrdi3) !! 21 sll %o0, %g2, %g3
29 EXPORT_SYMBOL(__lshrdi3) !! 22 srl %o1, %o2, %g2
>> 23 or %g2, %g3, %o5
>> 24 2:
>> 25 mov %o4, %o0
>> 26 mov %o5, %o1
>> 27 3:
>> 28 retl
>> 29 nop
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