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wolf3d/RULES.ASI
archive c8940ef65f as released 1995-07-21
1995-07-21 00:00:00 +00:00

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;[]-----------------------------------------------------------------[]
;| RULES.ASI -- Rules & Structures for assembler |
;| |
;| Turbo C++ Run Time Library |
;| |
;| Copyright (c) 1987, 1991 by Borland International Inc. |
;| All Rights Reserved. |
;[]-----------------------------------------------------------------[]
;*** First we begin with a few of the major constants of C.
false equ 0 ; Beware ! For incoming parameters, non-false = true.
true equ 1 ; For results, we generate the proper numbers.
lesser equ -1 ; Incoming, lesser < 0
equal equ 0
greater equ 1 ; Incoming, greater > 0
PAGE
;[]------------------------------------------------------------[]
;| |
;| Conditional Assembly Directives |
;| |
;[]------------------------------------------------------------[]
;memory model aliases, for the convenience of building the library
IFDEF __s__
__SMALL__ equ 1
ENDIF
IFDEF __c__
__COMPACT__ equ 1
ENDIF
IFDEF __m__
__MEDIUM__ equ 1
ENDIF
IFDEF __l__
__LARGE__ equ 1
ENDIF
IFDEF __h__
__HUGE__ equ 1
ENDIF
IFNDEF __TINY__
IFNDEF __SMALL__
IFNDEF __MEDIUM__
IFNDEF __COMPACT__
IFNDEF __LARGE__
IFNDEF __HUGE__
%OUT You must supply a model symbol.
.ERR
ENDIF
ENDIF
ENDIF
ENDIF
ENDIF
ENDIF
;bit masks to extract default pointer types from MMODEL (at run-time)
FCODE equ 8000h
FDATA equ 4000h
IFDEF __TINY__ ; Small Code - Small Data
LPROG equ false
LDATA equ false
MMODEL equ 0
_DSSTACK_ equ <>
ENDIF
IFDEF __SMALL__ ; Small Code - Small Data
LPROG equ false
LDATA equ false
MMODEL equ 1
_DSSTACK_ equ <>
ENDIF
IFDEF __MEDIUM__ ; Large Code - Small Data
LPROG equ true
LDATA equ false
MMODEL equ FCODE+2
_DSSTACK_ equ <>
ENDIF
IFDEF __COMPACT__ ; Small Code - Large Data
LPROG equ false
LDATA equ true
MMODEL equ FDATA+3
ENDIF
IFDEF __LARGE__ ; Large Code - Large Data
LPROG equ true
LDATA equ true
MMODEL equ FCODE+FDATA+4
ENDIF
IFDEF __HUGE__ ; Large Code - Large Data
LPROG equ true
LDATA equ true
MMODEL equ FCODE+FDATA+5
ENDIF
IF LPROG
DIST equ FAR
ELSE
DIST equ NEAR
ENDIF
PAGE
;[]------------------------------------------------------------[]
;| |
;| Segment Declarations Macros |
;| |
;[]------------------------------------------------------------[]
Code_Seg@ MACRO ;; Open a Code Segment
IFDEF __WINDOWS__
_TEXT SEGMENT WORD PUBLIC 'CODE'
ELSE
_TEXT SEGMENT BYTE PUBLIC 'CODE'
ENDIF
ASSUME CS:_TEXT
ENDM
Code_EndS@ MACRO ;; Close a Code Segment
_TEXT ENDS
ENDM
Data_Seg@ MACRO ;; Open a Data Segment (initialized)
_DATA SEGMENT WORD PUBLIC 'DATA'
ENDM
Data_EndS@ MACRO ;; Close a Data Segment (initialized)
_DATA ENDS
ENDM
IFNDEF __HUGE__
BSS_Seg@ MACRO ;; Open a Data Segment (un-initialized)
_BSS SEGMENT WORD PUBLIC 'BSS'
ENDM
BSS_EndS@ MACRO ;; Close a Data Segment (un-initialized)
_BSS ENDS
ENDM
ENDIF
FarData_Seg@ MACRO ;; Open a FAR Data Segment
_FARDATA SEGMENT PARA PUBLIC 'FAR_DATA'
ENDM
FarData_EndS@ MACRO ;; Close a FAR Data Segment
_FARDATA ENDS
ENDM
FarBSS_Seg@ MACRO ;; Open a FAR BSS Segment
_FARBSS SEGMENT PARA PUBLIC 'FAR_BSS'
ENDM
FarBSS_EndS@ MACRO ;; Close a FAR BSS Segment
_FARBSS ENDS
ENDM
Const_Seg@ MACRO ;; Open a CONST Segment
_CONST SEGMENT WORD PUBLIC 'CONST'
ENDM
Const_EndS@ MACRO ;; Close a CONST Segment
_CONST ENDS
ENDM
Init_Seg@ MACRO ;; Open a INIT Segment
_INIT_ SEGMENT WORD PUBLIC 'INITDATA'
ENDM
Init_EndS@ MACRO ;; Close a INIT Segment
_INIT_ ENDS
ENDM
Exit_Seg@ MACRO ;; Open a EXIT Segment
_EXIT_ SEGMENT WORD PUBLIC 'EXITDATA'
ENDM
Exit_EndS@ MACRO ;; Close a EXIT Segment
_EXIT_ ENDS
ENDM
CVT_Seg@ MACRO
_CVTSEG SEGMENT WORD PUBLIC 'DATA'
ENDM
CVT_EndS@ MACRO
_CVTSEG ENDS
ENDM
SCN_Seg@ MACRO
_SCNSEG SEGMENT WORD PUBLIC 'DATA'
ENDM
SCN_EndS@ MACRO
_SCNSEG ENDS
ENDM
Header@ MACRO
Code_Seg@
Code_EndS@
Data_Seg@
Data_EndS@
BSS_Seg@
BSS_EndS@
ASSUME CS:_TEXT, DS:DGROUP
ENDM
;[]------------------------------------------------------------[]
;| |
;| Segment Definitions |
;| |
;[]------------------------------------------------------------[]
IFDEF __C0__
IFDEF __WINDOWS__
_TEXT SEGMENT WORD PUBLIC 'CODE'
ENDS
ELSE
_TEXT SEGMENT BYTE PUBLIC 'CODE'
ENDS
ENDIF
_FARDATA SEGMENT PARA PUBLIC 'FAR_DATA'
ENDS
_FARBSS SEGMENT PARA PUBLIC 'FAR_BSS'
ENDS
IFNDEF __WINDOWS__
IFNDEF __TINY__
_OVERLAY_ SEGMENT PARA PUBLIC 'OVRINFO'
ENDS
_1STUB_ SEGMENT PARA PUBLIC 'STUBSEG'
ENDS
ENDIF
ENDIF
IFDEF __WINDOWS__
NULL SEGMENT PARA PUBLIC 'BEGDATA'
ENDS
ENDIF
_DATA SEGMENT PARA PUBLIC 'DATA'
ENDS
ENDS
_CONST SEGMENT WORD PUBLIC 'CONST'
ENDS
IFDEF __WINDOWS__
_FPSEG SEGMENT WORD PUBLIC 'DATA'
ENDS
ENDIF
_CVTSEG SEGMENT WORD PUBLIC 'DATA'
ENDS
_SCNSEG SEGMENT WORD PUBLIC 'DATA'
ENDS
_INIT_ SEGMENT WORD PUBLIC 'INITDATA'
InitStart label byte
ENDS
_INITEND_ SEGMENT BYTE PUBLIC 'INITDATA'
InitEnd label byte
ENDS
_EXIT_ SEGMENT WORD PUBLIC 'EXITDATA'
ExitStart label byte
ENDS
_EXITEND_ SEGMENT BYTE PUBLIC 'EXITDATA'
ExitEnd label byte
ENDS
IFNDEF __HUGE__
_BSS SEGMENT WORD PUBLIC 'BSS'
BeginBSS label byte
ENDS
_BSSEND SEGMENT BYTE PUBLIC 'BSSEND'
EndBSS label byte
ENDS
ENDIF
IFDEF __WINDOWS__
IFDEF __HUGE__
DGROUP GROUP NULL,_DATA,_CONST,_FPSEG,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_
ELSE
DGROUP GROUP NULL,_DATA,_CONST,_FPSEG,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_,_BSS,_BSSEND
ENDIF
ELSE
IFNDEF __NOFLOAT__
IF LDATA
IFDEF __HUGE__
DGROUP GROUP _DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_
ELSE
DGROUP GROUP _DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_,_BSS,_BSSEND
ENDIF
ELSE
IFDEF __TINY__
DGROUP GROUP _TEXT,_DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_,_BSS,_BSSEND
ELSE
DGROUP GROUP _DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_,_BSS,_BSSEND
ENDIF
ENDIF
ELSE
IF LDATA
IFDEF __HUGE__
DGROUP GROUP _DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_
ELSE
DGROUP GROUP _DATA,_CONST,_CVTSEG,_SCNSEG,_BSS,_BSSEND
ENDIF
ELSE
IFDEF __TINY__
DGROUP GROUP _TEXT,_DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_,_BSS,_BSSEND
ELSE
DGROUP GROUP _DATA,_CONST,_CVTSEG,_SCNSEG,_INIT_,_INITEND_,_EXIT_,_EXITEND_,_BSS,_BSSEND
ENDIF
ENDIF
ENDIF ; __NOFLOAT__
ENDIF ; __WINDOWS__
ELSE
Code_Seg@
Code_EndS@
Data_Seg@
Data_EndS@
DGROUP GROUP _DATA
ENDIF ; __C0__
PAGE
;[]------------------------------------------------------------[]
;| |
;| Old Segment Declarations Macros |
;| |
;[]------------------------------------------------------------[]
CSeg@ MACRO ;; Open a Code Segment
IFDEF __WINDOWS__
_TEXT SEGMENT WORD PUBLIC 'CODE'
ELSE
_TEXT SEGMENT BYTE PUBLIC 'CODE'
ENDIF
ASSUME CS:_TEXT
ENDM
CSegEnd@ MACRO ;; Close a Code Segment
_TEXT ENDS
ENDM
DSeg@ MACRO ;; Open a Data Segment (initialized)
_DATA SEGMENT WORD PUBLIC 'DATA'
ENDM
DSegEnd@ MACRO ;; Close a Data Segment (initialized)
_DATA ENDS
ENDM
IFDEF __BSS__
IFNDEF __HUGE__
BSeg@ MACRO ;; Open a Data Segment (un-initialized)
_BSS SEGMENT WORD PUBLIC 'BSS'
ENDM
BSegEnd@ MACRO ;; Close a Data Segment (un-initialized)
_BSS ENDS
ENDM
ENDIF
ENDIF
Header@ MACRO
IFDEF __WINDOWS__
_TEXT SEGMENT WORD PUBLIC 'CODE'
ELSE
_TEXT SEGMENT BYTE PUBLIC 'CODE'
ENDIF
_TEXT ENDS
_DATA SEGMENT WORD PUBLIC 'DATA'
_DATA ENDS
IFDEF __BSS__
IFNDEF __HUGE__
_BSS SEGMENT WORD PUBLIC 'BSS'
_BSS ENDS
ENDIF
ENDIF
ASSUME CS:_TEXT, DS:DGROUP
ENDM
PAGE
;[]------------------------------------------------------------[]
;| |
;| C Naming Convention Macros |
;| |
;[]------------------------------------------------------------[]
UNDERSCORE EQU 1
ExtSym@ MACRO Sym, sType, sName
IFNB <sName>
IFIDN <sName>, <__PASCAL__>
NAMING = 0
ELSE
NAMING = UNDERSCORE
ENDIF
ENDIF
IF NAMING
EXTRN _&Sym : sType
Sym&@ equ _&Sym
ELSE
EXTRN Sym : sType
Sym&@ equ Sym
ENDIF
ENDM
PubSym@ MACRO Sym, Definition, sName
IFNB <sName>
IFIDN <sName>, <__PASCAL__>
NAMING = 0
ELSE
NAMING = UNDERSCORE
ENDIF
ENDIF
IF NAMING
PUBLIC _&Sym
_&Sym Definition
Sym&@ equ _&Sym
ELSE
PUBLIC Sym
Sym Definition
Sym&@ equ Sym
ENDIF
ENDM
Static@ MACRO Sym, Definition, sName
IFNB <sName>
IFIDN <sName>, <__PASCAL__>
NAMING = 0
ELSE
NAMING = UNDERSCORE
ENDIF
ENDIF
IF NAMING
_&Sym Definition
Sym&@ equ _&Sym
ELSE
Sym Definition
Sym&@ equ Sym
ENDIF
ENDM
PAGE
;[]------------------------------------------------------------[]
;| |
;| Macros which are Data Size Dependent |
;| |
;[]------------------------------------------------------------[]
IF LDATA
DPTR_ equ DWORD PTR
dPtrSize equ 4
LES_ equ LES
ES_ equ ES:
SS_ equ SS:
LDS_ equ LDS
pushDS_ MACRO
PUSH DS
ENDM
popDS_ MACRO
POP DS
ENDM
PushPtr MACRO dPtrOff, dPtrSeg
PUSH dPtrSeg
PUSH dPtrOff
ENDM
dPtr@ MACRO Sym, VALUE, sName ;; Static Data pointer
Static@ Sym, <DD VALUE>, sName
ENDM
dPtrPub@ MACRO Sym, VALUE, sName ;; Global Data Pointer
PubSym@ Sym, <DD VALUE>, sName
ENDM
dPtrExt@ MACRO Sym, sName ;; External Data Pointer
ExtSym@ Sym, DWORD, sName
ENDM
ELSE
DPTR_ equ WORD PTR
dPtrSize equ 2
LES_ equ MOV
ES_ equ DS:
SS_ equ DS:
LDS_ equ MOV
pushDS_ MACRO
ENDM
popDS_ MACRO
ENDM
PushPtr MACRO dPtrOff, dPtrSeg
PUSH dPtrOff
ENDM
dPtr@ MACRO Sym, VALUE, sName ;; Static Data pointer
Static@ Sym, <DW VALUE>, sName
ENDM
dPtrPub@ MACRO Sym, VALUE, sName ;; Global Data Pointer
PubSym@ Sym, <DW VALUE>, sName
ENDM
dPtrExt@ MACRO Sym, sName ;; External Data Pointer
ExtSym@ Sym, WORD, sName
ENDM
ENDIF
PAGE
;[]------------------------------------------------------------[]
;| |
;| Macros which are Code Size Dependent |
;| |
;[]------------------------------------------------------------[]
IF LPROG
CPTR_ equ DWORD PTR
cPtrSize equ 4
Proc@ MACRO Sym, sName ;; Open a Static function
Static@ Sym, <PROC FAR>, sName
ENDM
PubProc@ MACRO Sym, sName ;; Open a Public function
PubSym@ Sym, <PROC FAR>, sName
ENDM
ExtProc@ MACRO Sym, sName ;; External Function
ExtSym@ Sym, FAR, sName
ENDM
cPtr@ MACRO Sym, VALUE, sName ;; Static Function pointer
Static@ Sym, <DD VALUE>, sName
ENDM
cPtrPub@ MACRO Sym, VALUE, sName;; Global Function Pointer
PubSym@ Sym, <DD VALUE>, sName
ENDM
cPtrExt@ MACRO Sym, sName ;; External Function Pointer
ExtSym@ Sym, DWORD, sName
ENDM
ELSE
CPTR_ equ WORD PTR
cPtrSize equ 2
Proc@ MACRO Sym, sName ;; Open a Static function
Static@ Sym, <PROC NEAR>, sName
ENDM
PubProc@ MACRO Sym, sName ;; Open a Public function
PubSym@ Sym, <PROC NEAR>, sName
ENDM
ExtProc@ MACRO Sym, sName ;; External Function
ExtSym@ Sym, NEAR, sName
ENDM
cPtr@ MACRO Sym, VALUE, sName ;; Static Function pointer
Static@ Sym, <DW VALUE>, sName
ENDM
cPtrPub@ MACRO Sym, VALUE, sName ;; Global Function Pointer
PubSym@ Sym, <DW VALUE>, sName
ENDM
cPtrExt@ MACRO Sym, sName ;; External Function Pointer
ExtSym@ Sym, WORD, sName
ENDM
ENDIF
EndProc@ MACRO Sym, sName ;; Close a function
Static@ Sym, ENDP, sName
ENDM
PAGE
;[]------------------------------------------------------------[]
;| |
;| Miscellaneous Definitions |
;| |
;[]------------------------------------------------------------[]
;*** Set up some macros for procedure parameters and export/import
nearCall STRUC
nearBP dw ?
nearIP dw ?
nearParam dw ?
nearCall ENDS
farCall STRUC
farBP dw ?
farCSIP dd ?
aParam dw ?
farCall ENDS
;*** Next, we define some convenient structures to access the parts
; of larger objects.
_twoBytes STRUC
BY0 db ?
BY1 db ?
_twoBytes ENDS
_fourWords STRUC
W0 dw ?
W1 dw ?
W2 dw ?
W3 dw ?
_fourWords ENDS
_twoDwords STRUC
DD0 dd ?
DD1 dd ?
_twoDwords ENDS
_aFloat STRUC
double dq ?
_aFloat ENDS
; How to invoke MSDOS.
MSDOS@ MACRO
int 21h
ENDM
PAGE
; The next section concerns the use of registers. SI and DI are used
; for register variables, and must be conserved.
; Registers AX, BX, CX, DX will not be preserved across function calls.
; Firstly, the registers to be conserved through function calls, including
; the setup of local variables.
link@ MACRO _si,_di,_ES,locals
push bp
mov bp, sp
IFNB <locals>
lea sp, locals
ENDIF
IFNB <_si>
push si
ENDIF
IFNB <_di>
push di
ENDIF
ENDM
unLink@ MACRO _si,_di,_ES,locals
IFNB <_di>
pop di
ENDIF
IFNB <_si>
pop si
ENDIF
IFNB <locals>
mov sp, bp
ENDIF
pop bp
ENDM
.LIST
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