Leaked source code of windows server 2003
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title "Pnp Bios Bus Extender ASM support routines";++;; Copyright (c) Microsoft Corporation. All rights reserved.;; Module Name:;; pbiosa.asm;; Abstract:;; This file contains Pnp Bios ASM support routines.;; Author:;; Shie-Lin Tzong (shielint) Jan 15, 1998;; Environment:;; Kernel mode only.;; Revision History:;;--
.386p.xlistinclude callconv.inc ; calling convention macros.list
EXTRNP _RtlMoveMemory, 3 EXTRNP _KeI386Call16BitCStyleFunction, 4
PAGELK SEGMENT DWORD PUBLIC 'CODE' ASSUME DS:FLAT, ES:FLAT, SS:NOTHING, FS:NOTHING, GS:NOTHING
;++;; VOID; PbCallPnpBiosWorker (; IN ULONG EntryOffset,; IN ULONG EntrySelector,; IN PUSHORT Parameters,; IN ULONG ParameterSize; );;; Routine Description:;; This routines copies the specified parameters to stack and invokes; Pnp Bios Entry point.;; Arguments:;; EntryOffset and EntrySelector - supplies the entry point of the bios function.;; Parameters - Supplies a pointer to argument block.;; ParameterSize - Size of the argument block;; Return Value:;; Registers/context contains the register values returned from pnp bios.;;--
EntryOffset equ [ebp + 8]EntrySelector equ [ebp + 12]Parameters equ [ebp + 16]ParameterSize equ [ebp + 20]
cPublicProc _PbCallPnpBiosWorker, 4
push ebp mov ebp, esp sub esp, ParameterSize mov eax, esp
stdCall _RtlMoveMemory, <eax, Parameters, ParameterSize>
stdCall _KeI386Call16BitCStyleFunction, <EntryOffset, EntrySelector, Parameters, ParameterSize>
mov esp, ebp pop ebp stdRET _PbCallPnpBiosWorker
stdENDP _PbCallPnpBiosWorker
PAGELK ends end
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