tss.asm

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;***************************************************************************
;*                                                                         *
;* PROT - A softdog killer                                                 *
;* Copyright (C) 1996,by Li Wen_xian                                       *
;* All rights reserved.                                                    *
;*                                                                         *
;* This file is: TSS.ASM, the Task State Segment definitions.              *
;* If you are using TASM, you may have to change this file.                *
;* See elow for more details.                                              *
;*                                                                         *
;***************************************************************************
INCLUDE         EQUMAC.INC
TSS_FILE        EQU     1
INCLUDE         EXTERNAL.INC
INCLUDE         TSS.INC


TSSSEG          SEGMENT
                ORG     0

;Dummy TSS that stores the original machine state
TSS0BEG         TSSBLK  <>
TSS0END         EQU     $

;TSS to run the USER task
TSS1BEG         EQU     $
                DD      0                    ;TASK LINK
                DD      OFFSET SSEG321       ;ESP0
                DW      SEL_STACK            ;SS0
                DW      0
                DD      0                    ;ESP1
                DW      SEL_STACK            ;SS1
                DW      0
                DD      0                    ;ESP2
                DW      SEL_STACK            ;SS2
                DW      0
                DD      0                    ;CR3
                DD      OFFSET USER          ;EIP
                DD      200H                 ;EFLAGS
                DD      0                    ;EAX
                DD      0                    ;ECX
                DD      0                    ;EDX
                DD      0                    ;EBX
                DD      OFFSET SSEG321       ;ESP
                DD      0                    ;EBP
                DD      0                    ;ESI
                DD      0                    ;EDI
                DW      SEL_DATA             ;ES
                DW      0
                DW      SEL_UCODE            ;CS
                DW      0
                DW      SEL_STACK            ;SS
                DW      0
                DW      SEL_UDATA            ;DS
                DW      0
                DW      SEL_DATA0            ;FS
                DW      0
                DW      SEL_VIDEO            ;GS
                DW      0
                DD      0                    ;LDT
                DW      0                    ;T
                DW      $+2-OFFSET TSS1BEG
_IOPORT         DB      8192 DUP (0)
                DB      0FFH

TSS1END         EQU     $
TSSLEN          EQU     (TSS0END-TSS0BEG)-1
                PUBLIC  TSS1BEG,TSSLEN,_IOPORT
TSSSEG          ENDS
                END