80 lines
1.3 KiB
NASM
80 lines
1.3 KiB
NASM
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title "NtCurTeb.asm"
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;++
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;
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; Copyright (c) 1989 Microsoft Corporation
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;
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; Module Name:
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;
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; NtCurTeb.asm
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;
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; Abstract:
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;
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; Efficient NtCurrentTeb code.
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;
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; Author:
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;
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; Bryan Willman (bryanwi) 28 feb 90
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;
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; Environment:
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;
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; Revision History:
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;
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;--
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.386p
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.xlist
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include ks386.inc
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include callconv.inc ; calling convention macros
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.list
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page ,132
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subttl "NtCurrentTeb"
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IFDEF NTOS_KERNEL_RUNTIME
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.PAGE SEGMENT DWORD PUBLIC 'CODE'
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ELSE
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_TEXT SEGMENT DWORD PUBLIC 'CODE'
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ENDIF
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ASSUME DS:FLAT, ES:FLAT, SS:NOTHING, FS:NOTHING, GS:NOTHING
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;++
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;
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; PTEB
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; NtCurrentTeb();
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;
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; Routine Description:
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;
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; This routine returns the address of the current TEB.
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;
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; Arguments:
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;
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; None
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;
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; Return Value:
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;
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; Address of TEB.
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;
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;--
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cPublicProc ___NtCurrentTeb ,0
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cPublicFpo 0,0
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;
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; How this works in both user and kernel mode.
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;
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; In user mode, TEB.TIB.Self is flat address of containing structure.
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; In kernel mode, PCR.TIB.Self is flat address of the TEB.
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; Same offset both places, so fs:PcTeb is always the flat address
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; of the TEB.
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;
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mov eax,fs:[PcTeb]
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stdRET ___NtCurrentTeb
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stdENDP ___NtCurrentTeb
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IFDEF NTOS_KERNEL_RUNTIME
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.PAGE ENDS
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ELSE
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_TEXT ENDS
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ENDIF
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end
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