;[]-----------------------------------------------------------------[] ;| RULES.ASI -- Rules & Structures for assembler | ;[]-----------------------------------------------------------------[] ; ; C/C++ Run Time Library - Version 6.5 ; ; Copyright (c) 1987, 1994 by Borland International ; 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 __t__ __TINY__ equ 1 ENDIF 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 IFIDN , <__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 IFIDN , <__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 IFIDN , <__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,
, sName ENDM dPtrPub@ MACRO Sym, VALUE, sName ;; Global Data Pointer PubSym@ Sym,
, 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, , sName ENDM dPtrPub@ MACRO Sym, VALUE, sName ;; Global Data Pointer PubSym@ Sym, , 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, , sName ENDM PubProc@ MACRO Sym, sName ;; Open a Public function PubSym@ Sym, , sName ENDM ExtProc@ MACRO Sym, sName ;; External Function ExtSym@ Sym, FAR, sName ENDM cPtr@ MACRO Sym, VALUE, sName ;; Static Function pointer Static@ Sym,
, sName ENDM cPtrPub@ MACRO Sym, VALUE, sName;; Global Function Pointer PubSym@ Sym,
, 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, , sName ENDM PubProc@ MACRO Sym, sName ;; Open a Public function PubSym@ Sym, , sName ENDM ExtProc@ MACRO Sym, sName ;; External Function ExtSym@ Sym, NEAR, sName ENDM cPtr@ MACRO Sym, VALUE, sName ;; Static Function pointer Static@ Sym, , sName ENDM cPtrPub@ MACRO Sym, VALUE, sName ;; Global Function Pointer PubSym@ Sym, , 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 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 mov sp, bp ENDIF pop bp ENDM .LIST