acrn-kernel/arch/avr32/lib/__avr32_asr64.S

32 lines
560 B
ArmAsm

/*
* Copyright (C) 2005-2006 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* DWtype __avr32_asr64(DWtype u, word_type b)
*/
.text
.global __avr32_asr64
.type __avr32_asr64,@function
__avr32_asr64:
cp.w r12, 0
reteq r12
rsub r9, r12, 32
brle 1f
lsl r8, r11, r9
lsr r10, r10, r12
asr r11, r11, r12
or r10, r8
retal r12
1: neg r9
asr r10, r11, r9
asr r11, 31
retal r12