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