mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-18 15:27:48 +01:00
35 lines
1011 B
NASM
35 lines
1011 B
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
|
||
|
|
; SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
;
|
||
|
|
; Module Name:
|
||
|
|
;
|
||
|
|
; MultU64x32.nasm
|
||
|
|
;
|
||
|
|
; Abstract:
|
||
|
|
;
|
||
|
|
; Calculate the product of a 64-bit integer and a 32-bit integer
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
SECTION .text
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; UINT64
|
||
|
|
; EFIAPI
|
||
|
|
; InternalMathMultU64x32 (
|
||
|
|
; IN UINT64 Multiplicand,
|
||
|
|
; IN UINT32 Multiplier
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
global ASM_PFX(InternalMathMultU64x32)
|
||
|
|
ASM_PFX(InternalMathMultU64x32):
|
||
|
|
mov ecx, [esp + 12]
|
||
|
|
mov eax, ecx
|
||
|
|
imul ecx, [esp + 8] ; overflow not detectable
|
||
|
|
mul dword [esp + 4]
|
||
|
|
add edx, ecx
|
||
|
|
ret
|
||
|
|
|