;------------------------------------------------------------------------------ | |
; | |
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> | |
; SPDX-License-Identifier: BSD-2-Clause-Patent | |
; | |
; Module Name: | |
; | |
; DivError.asm | |
; | |
; Abstract: | |
; | |
; Set error flag for all division functions | |
; | |
;------------------------------------------------------------------------------ | |
SECTION .text | |
;------------------------------------------------------------------------------ | |
; UINT64 | |
; EFIAPI | |
; InternalMathDivRemU64x32 ( | |
; IN UINT64 Dividend, | |
; IN UINT32 Divisor, | |
; OUT UINT32 *Remainder | |
; ); | |
;------------------------------------------------------------------------------ | |
global ASM_PFX(InternalMathDivRemU64x32) | |
ASM_PFX(InternalMathDivRemU64x32): | |
mov ecx, [esp + 12] ; ecx <- divisor | |
mov eax, [esp + 8] ; eax <- dividend[32..63] | |
xor edx, edx | |
div ecx ; eax <- quotient[32..63], edx <- remainder | |
push eax | |
mov eax, [esp + 8] ; eax <- dividend[0..31] | |
div ecx ; eax <- quotient[0..31] | |
mov ecx, [esp + 20] ; ecx <- Remainder | |
jecxz .0 ; abandon remainder if Remainder == NULL | |
mov [ecx], edx | |
.0: | |
pop edx ; edx <- quotient[32..63] | |
ret | |