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41 lines
1.3 KiB
41 lines
1.3 KiB
4 years ago
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php.
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;
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; Module Name:
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;
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; MultU64x32.nasm
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;
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; Abstract:
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;
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; Calculate the product of a 64-bit integer and a 32-bit integer
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;
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;------------------------------------------------------------------------------
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SECTION .text
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;------------------------------------------------------------------------------
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; UINT64
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; EFIAPI
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; InternalMathMultU64x32 (
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; IN UINT64 Multiplicand,
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; IN UINT32 Multiplier
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(InternalMathMultU64x32)
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ASM_PFX(InternalMathMultU64x32):
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mov ecx, [esp + 12]
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mov eax, ecx
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imul ecx, [esp + 8] ; overflow not detectable
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mul dword [esp + 4]
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add edx, ecx
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ret
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