Rooba
/
ReC98
mirror of https://github.com/nmlgc/ReC98.git
1
1
Fork 0
Code Issues Packages Projects Releases Wiki Activity
ReC98/libs/BorlandC/RULES.ASI

397 lines
11 KiB
Plaintext
Raw Normal View History

Include RULES.ASI from every executable's dump file. Having thought this over for a while, I've decided to stay with the "include slice" model for now, due to various bugs and other reasons. We need to compile for the 386 CPU, but this causes TASM to automatically default every segment to 32-bit mode, which of course is not what we want (and no, .MODEL USE16 sadly does not help either). Appending USE16 to every segment declaration in all included files seems to work, but for some reason, this messes up certain jump instructions. WTF? And even if it did work, we would still have to do this for every single file we include. The alternative would be to build proper libraries and let the linker merge all the code. This would add a lot of unwarranted complexity to the build process. Not to mention all the EXTERN statements we'd have to maintain. Ultimately, all of the C runtime ASM code is going to vanish anyway once we've completed the reduction step. Once we're there, we can simply link to the original version of the library. These initial dumps are not pretty, and I see no point in wasting time on making intermediary stages of development look pretty. Since including RULES.ASI from every slice seems a bit inefficient (and even potentiall harmful, considering the age of the development tools we have to work with), we'll only include it once at the top of every main dump file. [Binary change] Relocations in TH01's REIIDEN.EXE, again.
2014-08-14 06:01:36 +00:00
; *Not* the original file. All segment-related code was removed in order to
; turn it into an includable slice.
;[]-----------------------------------------------------------------[]
;| RULES.ASI -- Rules & Structures for assembler |
;[]-----------------------------------------------------------------[]
; $Copyright: 1987$
;*** 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
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