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47 lines
1.7 KiB
47 lines
1.7 KiB
4 years ago
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#------------------------------------------------------------------------------
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#
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# Copyright (c) 2006 - 2008, 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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# DivError.S
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#
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# Abstract:
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#
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# Set error flag for all division functions
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#
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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(InternalMathDivRemU64x32)
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#------------------------------------------------------------------------------
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# UINT64
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# EFIAPI
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# InternalMathDivRemU64x32 (
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# IN UINT64 Dividend,
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# IN UINT32 Divisor,
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# OUT UINT32 *Remainder
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# );
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#------------------------------------------------------------------------------
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ASM_PFX(InternalMathDivRemU64x32):
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movl 12(%esp), %ecx # ecx <- divisor
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movl 8(%esp), %eax # eax <- dividend[32..63]
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xorl %edx, %edx
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divl %ecx # eax <- quotient[32..63], edx <- remainder
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push %eax
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movl 8(%esp), %eax # eax <- dividend[0..31]
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divl %ecx # eax <- quotient[0..31]
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movl 20(%esp), %ecx # ecx <- Remainder
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jecxz L1 # abandon remainder if Remainder == NULL
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movl %edx, (%ecx)
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L1:
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pop %edx # edx <- quotient[32..63]
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ret
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