1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4 ; This program and the accompanying materials 5 ; are licensed and made available under the terms and conditions of the BSD License 6 ; which accompanies this distribution. The full text of the license may be found at 7 ; http://opensource.org/licenses/bsd-license.php. 8 ; 9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 ; 12 ; Module Name: 13 ; 14 ; DivError.asm 15 ; 16 ; Abstract: 17 ; 18 ; Set error flag for all division functions 19 ; 20 ;------------------------------------------------------------------------------ 21 22 SECTION .text 23 24 ;------------------------------------------------------------------------------ 25 ; UINT64 26 ; EFIAPI 27 ; InternalMathDivRemU64x32 ( 28 ; IN UINT64 Dividend, 29 ; IN UINT32 Divisor, 30 ; OUT UINT32 *Remainder 31 ; ); 32 ;------------------------------------------------------------------------------ 33 global ASM_PFX(InternalMathDivRemU64x32) 34 ASM_PFX(InternalMathDivRemU64x32): 35 mov ecx, [esp + 12] ; ecx <- divisor 36 mov eax, [esp + 8] ; eax <- dividend[32..63] 37 xor edx, edx 38 div ecx ; eax <- quotient[32..63], edx <- remainder 39 push eax 40 mov eax, [esp + 8] ; eax <- dividend[0..31] 41 div ecx ; eax <- quotient[0..31] 42 mov ecx, [esp + 20] ; ecx <- Remainder 43 jecxz .0 ; abandon remainder if Remainder == NULL 44 mov [ecx], edx 45 .0: 46 pop edx ; edx <- quotient[32..63] 47 ret 48 49
