4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/** @file
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 64-bit Math Worker Function.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The 32-bit versions of C compiler generate calls to library routines
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync to handle 64-bit math. These functions use non-standard calling conventions.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials are licensed and made available
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync under the terms and conditions of the BSD License which accompanies this
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync http://opensource.org/licenses/bsd-license.php.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync**/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Library/BaseLib.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Divides a 64-bit signed value by another 64-bit signed value and returns
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the 64-bit signed remainder.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync__declspec(naked) void __cdecl _allrem(void)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Wrapper Implementation over EDKII DivS64x64Remainder() routine
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // UINT64
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // EFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // DivS64x64Remainder (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // IN UINT64 Dividend,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // IN UINT64 Divisor,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // OUT UINT64 *Remainder
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // )
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _asm {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Original local stack when calling _allrem
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; -----------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; | |
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; |---------------|
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; | |
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; |-- Divisor --|
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; | |
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; |---------------|
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; | |
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; |-- Dividend --|
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; | |
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; |---------------|
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; | ReturnAddr** |
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; ESP---->|---------------|
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Set up the local stack for Reminder pointer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sub esp, 8
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push esp
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Set up the local stack for Divisor parameter
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, [esp + 28]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, [esp + 28]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Set up the local stack for Dividend parameter
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, [esp + 28]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, [esp + 28]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Call native DivS64x64Remainder of BaseLib
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync call DivS64x64Remainder
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Put the Reminder in EDX:EAX as return value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, [esp + 20]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov edx, [esp + 24]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Adjust stack
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync add esp, 28
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ret 16
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}