612 lines
15 KiB
PHP
612 lines
15 KiB
PHP
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; Copyright (c) Microsoft Corporation 1988-1991. All Rights Reserved.
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;****************************************************************
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;* *
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;* GENDEFS.INC -- General Symbol Defintions for Dos Extender *
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;* *
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;****************************************************************
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;* Revision History: *
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;* *
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;* 05/08/90 jimmat Changes for VCPI support. *
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;* 01/07/90 jimmat Make DOSX version 03.00. *
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;* 7/28/89 jimmat Increased GDT/LDT size yet again. *
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;* 4/01/89 jimmat Increased size of GDT/LDT (again) *
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;* 3/30/89 jimmat Added ChkPoint macro for debugging *
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;* 3/11/89 jimmat Added support for LDT & TSS *
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;* 3/09/89 jimmat Added DX_DYNALINK function *
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;* 02/22/89 (GeneA): increased size of interrupt reflector *
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;* stack frames (CB_STKFRAME) from 128 to 256 bytes *
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;* 02/17/89 (GeneA): removed ERC_??? equates *
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;* 02/10/89 (GeneA): changed form of definitions for the *
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;* EXEC_??? symbols, and added ERC_??? error code symbols. *
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;* 12/13/88 (GeneA): moved definitions for EXEC_??? symbols *
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;* and RELOC_BUFFER here from dxinit.asm
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;* 12/08/88 (GeneA): added npopf function *
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;* 12/08/88 (GeneA): added HMMFUNC definition *
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;* *
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;****************************************************************
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ifndef DEBUG ;define DEBUG switch if it isn't already
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DEBUG = 0
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endif
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ifndef MINBUG
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MINBUG = 0
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endif
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ifndef VCPI
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VCPI = 0
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endif
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ifndef NO386
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NO386 = 0
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endif
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; -------------------------------------------------------
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; MISC. PROGRAM CONSTANTS
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; -------------------------------------------------------
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DXVERSION = 030Ah ;Version 03.10
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DPMI_32BIT equ 0000000000000001b
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if VCPI
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CDSCGDTDEFAULT = 3072 ;default size of GDT **** temp for VCPI **** !!!
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CDSCLDTDEFAULT = 2
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else
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CDSCGDTDEFAULT = 3072 ;default size of GDT
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endif
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CDSCMAXLDT = 8190 ;maximum possible LDT selectors
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CDSCIDTDEFAULT = 256 ;default size of IDT
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CB_XFRBUF0 = 128 ;size of small transfer buffer
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;
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; Performance enhancement, by RalphL
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;
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CB_XFRBUF1 = 8192 ;size of large transfer buffer
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CB_STKFRAME = 384 ;size of a stack frame
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CB_MEMHDR = 16 ; size of memory block header (1 paragraph)
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CXMSBLOCKSDX = 16 ; number of XMS blocks to allocate
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INTA00 = 20h ;i/o address of master 8259
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INTA01 = 21h
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INTB00 = 0A0h ;i/o address of slave 8259
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INTB01 = 0A1h
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CMOSLoc = 70h ;CMOS ram/Real-Time Clock location port
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CMOSValue = 71h ;CMOS ram/Real-Time Clock value port
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HP_VECTRA = 01h ;Running on an HP Vectra
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HP_CLASSIC = 02h ;Running on a 'Classic' Vectra (A & A+)
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CRESERVED = 32 ;Reserved interrupt numbers
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; The following equates define the DOS Extender DynaLink services
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if DEBUG
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OutDebugStr = 0 ;debugging text out service
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TestDebugIns = 1 ;debugger installation check service
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NUM_DYNALINK = 2
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else ; !DEBUG
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NUM_DYNALINK = 0
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endif
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; This structure defines the format of the Exec paramter block used
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; by the MS-DOS exec function (ah=4Bh, al=01).
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XBLK struc
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segEnv dw ? ;segment address of environment to use
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lpchCmnd dd ? ;far pointer to command line
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lpFCB0 dd ? ;far pointer to first default fcb
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lpFCB1 dd ? ;far pointer to second default fcb
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lpChildStack dd ? ;return value, far pointer to child stack
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lpChildCode dd ? ;return value, far pointer to child code
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XBLK ends
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; The following symbols define locations in rgbXfrBuf1 used
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; during initialization. ParseCommandLine places this information
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; into the buffer to be used by later programs.
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BUFTMP = CB_XFRBUF1 - 1024 ;use the top 1k for the temporary buffers
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EXEC_PROGNAME equ <DGROUP:rgbXfrBuf1+BUFTMP+0000h> ;child program's exe file name
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EXEC_DXNAME equ <DGROUP:rgbXfrBuf1+BUFTMP+0080h> ;Dos Extender program name
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EXEC_CMNDLINE equ <DGROUP:rgbXfrBuf1+BUFTMP+0100h> ;command line to pass to the child
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EXEC_EXEHDR equ <DGROUP:rgbXfrBuf1+BUFTMP+0180h> ;buffer for holding exe header for
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; the overlay currently being
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; loaded
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EXEC_FCB0 equ <DGROUP:rgbXfrBuf1+BUFTMP+01A0h> ;FCB0 to pass to the child
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EXEC_FCB1 equ <DGROUP:rgbXfrBuf1+BUFTMP+01D0h> ;FCB1 to pass to the child
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RELOC_BUFFER equ <DGROUP:rgbXfrBuf1+BUFTMP+0200h> ;file input buffer used to hold
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; pages of the relocation table
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; while relocating the current
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; overlay
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;
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; This structure defines the stack frame used to hold the entry
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; values and automatic variables for Dos Extender functions.
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FUNCSTACK struc
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fnsUserES dw ?
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fnsUserDS dw ?
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fnsUserDI dw ?
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fnsUserSI dw ?
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fnsUserBP dw ?
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fnsUserSPx dw ?
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fnsUserBX dw ?
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fnsUserDX dw ?
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fnsUserCX dw ?
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fnsUserAX dw ?
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fnsUserIP dw ?
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fnsUserCS dw ?
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fnsUserFL dw ?
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fnsUserSS dw ?
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fnsUserSP dw ?
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FUNCSTACK ends
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; -------------------------------------------------------
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; DEFINITIONS FOR MACROS
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; -------------------------------------------------------
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; These macros are used to switch between the protected mode
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; only code segment and the mixed protected/real mode code segment.
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; They are intended to be used for switching between modes in-line
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; within a routine. They must be used in pairs, bracketing the
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; code that needs to be in the other mode (from the initial or 'native'
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; mode of the function.)
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; -------------------------------------------------------
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;
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; This macro switches the processor and the local segment context
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; to the dos extender protected mode segment.
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SwitchToProtectedMode macro
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local foo
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ifndef EnterProtectedMode
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extrn EnterProtectedMode:NEAR
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endif
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call EnterProtectedMode
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% ifidni <@CURSEG>,<DXCODE>
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; jmp far ptr foo
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db 0EAh ;avoid need for fixups
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dw offset DXPMCODE:foo
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dw SEL_DXPMCODE OR STD_RING
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DXCODE ends
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DXPMCODE segment
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assume cs:DXPMCODE
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endif
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foo:
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endm
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; -------------------------------------------------------
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;
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; This macro switches the processor and the local segment context
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; to the dos extender mixed protected/real mode segment.
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SwitchToRealMode macro
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local foo
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% ifidni <@CURSEG>,<DXPMCODE>
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; jmp far ptr foo
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db 0EAh ;avoid need for fixups
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dw offset DXCODE:foo
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dw SEL_DXCODE OR STD_RING
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DXPMCODE ends
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DXCODE segment
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assume cs:DXCODE
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endif
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ifndef EnterRealMode
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extrn EnterRealMode:NEAR
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endif
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foo:
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call EnterRealMode
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endm
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; -------------------------------------------------------
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;
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BeginLowSegment macro
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DXCODE segment
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assume cs:DXCODE
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endm
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EndLowSegment macro
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DXCODE ends
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endm
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BeginHighSegment macro
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DXPMCODE segment
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assume cs:DXPMCODE
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endm
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EndHighSegment macro
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DXPMCODE ends
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endm
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; -------------------------------------------------------
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;
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; This macro switches the local segment context
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; to the dos extender protected mode segment.
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ChangeToHighSegment macro
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local foo
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% ifidni <@CURSEG>,<DXCODE>
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.err
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%out Switch to high segment when already in high segment
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endif
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jmp far ptr foo
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DXCODE ends
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DXPMCODE segment
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assume cs:DXPMCODE
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foo:
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endm
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; -------------------------------------------------------
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;
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; This macro switches the local segment context
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; to the dos extender mixed protected/real mode segment.
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ChangeToLowSegment macro
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local foo
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% ifidni <@CURSEG>,<DXCODE>
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.err
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%out Switch to low segment when already in low segment
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endif
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jmp far ptr foo
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DXPMCODE ends
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DXCODE segment
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assume cs:DXCODE
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foo:
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endm
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; -------------------------------------------------------
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;
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PushCParams MACRO P1, P2, P3, P4, P5, P6, P7, P8, P9, P10
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IRP Param, <P10, P9, P8, P7, P6, P5, P4, P3, P2, P1>
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IFNB <Param>
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push Param
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ENDIF
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ENDM
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ENDM
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ClearCParams MACRO Count, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10
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IFNB <P1>
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ClearCParams %(Count+1), <P2>, <P3>, <P4>, <P5>, <P6>, <P7>, <P8>, <P9>, <P10>
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ELSE
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IF Count
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add sp, Count*2
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ENDIF
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ENDIF
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ENDM
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; -------------------------------------------------------
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; This macro calls one of the DX services
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DXcall MACRO Procedure, Param_List
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IFNDEF WOW_x86 ; BUGBUG
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PushCParams Param_List
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db 9Ah ;call sel:0
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dw 0
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dw SEL_DYNALINK + (Procedure SHL 3)
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ClearCParams 0, Param_List
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ENDIF
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ENDM
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; -------------------------------------------------------
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; This macro displays a string if DEBUG
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;
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; Note: This macro only works in PROTECT MODE! **********
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Trace_Out MACRO String, nocrlf
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LOCAL String_Offset
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ifndef WOW_x86 ;bugbug
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IF DEBUG
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DXDATA SEGMENT
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String_Offset LABEL BYTE
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db String
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IFB <nocrlf>
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db 0Ah, 0Dh
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ENDIF
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db 0
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DXDATA ENDS
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push ds
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pushf
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cli
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pusha ; save our registers
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pusha ; copy them for print routine
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mov ax,SEL_DXDATA ; make sure string is addressable
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mov ds,ax
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mov si,OFFSET DGROUP:String_Offset
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DXcall OutDebugStr
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popa ; restore our registers
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npopf
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pop ds
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ENDIF
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endif ;WOW_x86
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ENDM
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; -------------------------------------------------------
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; This macro displays a string and breaks if DEBUG
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;
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; Note: This macro only works in PROTECT MODE! **********
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Debug_Out MACRO String
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LOCAL Skip_Int1
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IF DEBUG
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pushf
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Trace_Out <String>
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DXcall TestDebugIns
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jz SHORT Skip_Int1
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int 1
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Skip_Int1:
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npopf
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ENDIF
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ENDM
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; -------------------------------------------------------
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; This macro displays a string if DEBUG
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;
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; Note: This macro only works in REAL MODE! **********
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;
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; DS must be set to the DOS Extender's DS before using, too.
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;
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Real_Trace_Out MACRO String, nocrlf
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LOCAL String_Offset
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IF DEBUG
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ifndef DXOutDebugStr
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EXTRN DXOutDebugStr:FAR
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endif
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DXDATA SEGMENT
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String_Offset LABEL BYTE
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db String
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IFB <nocrlf>
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db 0Ah, 0Dh
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ENDIF
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db 0
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DXDATA ENDS
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pushf
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cli
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pusha ; save our registers
|
||
|
|
pusha ; copy them for print routine
|
||
|
|
|
||
|
|
mov si,OFFSET DGROUP:String_Offset
|
||
|
|
call DXOutDebugStr
|
||
|
|
|
||
|
|
popa ; restore our registers
|
||
|
|
|
||
|
|
npopf
|
||
|
|
ENDIF
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; This macro displays a string and breaks if DEBUG
|
||
|
|
;
|
||
|
|
; Note: This macro only works in REAL MODE! **********
|
||
|
|
;
|
||
|
|
; DS must be set to the DOS Extender's DS before using, too.
|
||
|
|
;
|
||
|
|
|
||
|
|
Real_Debug_Out MACRO String
|
||
|
|
LOCAL Skip_Int1
|
||
|
|
IF DEBUG
|
||
|
|
pushf
|
||
|
|
Real_Trace_Out <String>
|
||
|
|
cmp fDebug,0
|
||
|
|
jz SHORT Skip_Int1
|
||
|
|
int 1
|
||
|
|
Skip_Int1:
|
||
|
|
npopf
|
||
|
|
ENDIF
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; Delay for I/O Instructions...
|
||
|
|
|
||
|
|
IO_Delay MACRO
|
||
|
|
jmp short $+2
|
||
|
|
jmp short $+2
|
||
|
|
jmp short $+2
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
;8080-style return macros due to Greg Whitten
|
||
|
|
|
||
|
|
genrcc macro cc
|
||
|
|
r&cc ¯o labl
|
||
|
|
if $-___ret gt 126d
|
||
|
|
jn&cc $+3 ;;Skip around ret
|
||
|
|
___ret = $
|
||
|
|
ret
|
||
|
|
else
|
||
|
|
j&cc ___ret ;;jmp to last ret
|
||
|
|
endif
|
||
|
|
&endm
|
||
|
|
|
||
|
|
rn&cc ¯o labl
|
||
|
|
if $-___ret gt 126d
|
||
|
|
j&cc $+3 ;;Skip around ret
|
||
|
|
___ret = $
|
||
|
|
ret
|
||
|
|
else
|
||
|
|
jn&cc ___ret ;;jmp to last ret
|
||
|
|
endif
|
||
|
|
&endm
|
||
|
|
|
||
|
|
call&cc ¯o labl
|
||
|
|
jn&cc $+5 ;;Skip around call
|
||
|
|
call labl
|
||
|
|
&endm
|
||
|
|
|
||
|
|
calln&cc ¯o labl
|
||
|
|
j&cc $+5 ;;Skip around call
|
||
|
|
call labl
|
||
|
|
&endm
|
||
|
|
|
||
|
|
jmp&cc ¯o labl
|
||
|
|
jn&cc $+5 ;;Skip around jmp
|
||
|
|
jmp labl
|
||
|
|
&endm
|
||
|
|
|
||
|
|
jmpn&cc ¯o labl
|
||
|
|
j&cc $+5 ;;Skip around jmp
|
||
|
|
jmp labl
|
||
|
|
&endm
|
||
|
|
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; rcc and rncc macro generators
|
||
|
|
|
||
|
|
genrcc a
|
||
|
|
genrcc ae
|
||
|
|
genrcc b
|
||
|
|
genrcc be
|
||
|
|
genrcc c
|
||
|
|
genrcc e
|
||
|
|
genrcc g
|
||
|
|
genrcc ge
|
||
|
|
genrcc l
|
||
|
|
genrcc le
|
||
|
|
genrcc o
|
||
|
|
genrcc s
|
||
|
|
genrcc z
|
||
|
|
|
||
|
|
return macro
|
||
|
|
___ret = $
|
||
|
|
ret
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
;
|
||
|
|
; This macro is used to get around the bug in the POPF instruction in
|
||
|
|
; some early 80286 chips.
|
||
|
|
IFDEF WOW
|
||
|
|
npopf macro
|
||
|
|
rpopf
|
||
|
|
endm
|
||
|
|
ELSE
|
||
|
|
npopf macro
|
||
|
|
local a
|
||
|
|
jmp $+3 ; Fix for bug in POPF on IBM AT
|
||
|
|
a: iret ; This simulates a POPF instruction
|
||
|
|
push cs
|
||
|
|
call a
|
||
|
|
endm
|
||
|
|
ENDIF
|
||
|
|
; -------------------------------------------------------
|
||
|
|
;
|
||
|
|
; MS-DOS function call macros
|
||
|
|
|
||
|
|
dossvc macro fcn
|
||
|
|
ifnb <fcn>
|
||
|
|
mov ah,fcn
|
||
|
|
endif
|
||
|
|
int 21h
|
||
|
|
endm
|
||
|
|
|
||
|
|
pmdossvc macro fcn
|
||
|
|
ifnb <fcn>
|
||
|
|
mov ah,fcn
|
||
|
|
endif
|
||
|
|
pushf ;don't do Int 21h in case child has Int 21h
|
||
|
|
cli ; hooked (like Windows)
|
||
|
|
push cs
|
||
|
|
call PmIntrDos
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; This macro will request a Dos Extender funtion.
|
||
|
|
|
||
|
|
dxsvc macro fcn
|
||
|
|
ifnb <fcn>
|
||
|
|
mov al,fcn
|
||
|
|
endif
|
||
|
|
mov ah,DXFUNC
|
||
|
|
int 2Fh
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; This macro is used to make calls to the XMS driver for
|
||
|
|
; extended memory management.
|
||
|
|
|
||
|
|
HMMFUNC = 43h ;Himem driver Int 2Fh function code
|
||
|
|
|
||
|
|
xmssvc macro fcn
|
||
|
|
ifnb <fcn>
|
||
|
|
mov ah,fcn
|
||
|
|
endif
|
||
|
|
call [lpfnXMSFunc]
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
|
||
|
|
out1 macro p
|
||
|
|
if1
|
||
|
|
%out p
|
||
|
|
endif
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
|
||
|
|
errnz macro p
|
||
|
|
if2
|
||
|
|
.errnz p
|
||
|
|
endif
|
||
|
|
endm
|
||
|
|
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; -------------------------------------------------------
|
||
|
|
; -------------------------------------------------------
|
||
|
|
|
||
|
|
;****************************************************************
|