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|
;------------------------------------------------------------------------------
;
; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; MathRShiftU64.nasm
;
; Abstract:
;
; 64-bit Math Worker Function.
; Shifts a 64-bit unsigned value right by a certain number of bits.
;
;------------------------------------------------------------------------------
SECTION .text
;------------------------------------------------------------------------------
;
; void __cdecl __ashrdi3 (void)
;
;------------------------------------------------------------------------------
global ASM_PFX(__ashrdi3)
ASM_PFX(__ashrdi3):
cmp cl,0x40
jnc _Exit
cmp cl,0x20
jnc More32
shrd eax,edx,cl
shr edx,cl
ret
More32:
mov eax,edx
xor edx,edx
and cl,0x1f
shr eax,cl
ret
_Exit:
xor eax,eax
xor edx,edx
ret
|
