;
; grafix --- macros.ah 
;
; general purpose definitions
;
; Written 4/87 by Scott Snyder (ssnyder@romeo.caltech.edu or @citromeo.bitnet)
;
; Memory model stuff added 5/29/87 by sss
;

;include model.inc

;
; break down modules
;
ifdef SMALL
  NEARDATA equ 1
  NEARCODE equ 1
endif

ifdef COMPACT
   FARDATA equ 1
  NEARCODE equ 1
endif

ifdef MEDIUM
  NEARDATA equ 1
   FARCODE equ 1
endif

ifdef LARGE
   FARDATA equ 1
   FARCODE equ 1
endif

;
; define model-dependent parameters
;

ifdef NEARCODE
  argbase equ 4
endif

ifdef FARCODE
  argbase equ 6
endif

;
; macros
;

cseg	macro moduleName
	ifdef FARCODE
	  moduleName&_TEXT segment byte public 'CODE'
	  assume cs: moduleName&_TEXT
	else
	  _TEXT segment byte public 'CODE'
	  assume cs: _TEXT
	endif
	endm

endcs	macro moduleName
	ifdef FARCODE
	  moduleName&_TEXT ends
	else
	  _TEXT ends
	endif
	endm

pBegin	macro pName
	ifdef FARCODE
	  pName proc far
	else
	  pName proc near
	endif
	endm

pEnd	macro pName
	pName endp
	endm

dseg	macro
	assume	ds:DGROUP
_DATA	segment byte public 'DATA'
	endm

endds	macro
_DATA	ends
	endm

sseg	macro
DGROUP	group	_STACK, _DATA
	assume	ss:DGROUP
_STACK	segment word stack 'STACK'
	endm

endss	macro
_STACK	ends
	endm

df	macro	sym
public	sym
_&sym	=	sym
public	_&sym
	endm

ex	macro	sym, typ
extrn	_&sym : typ
sym	equ	_&sym
	endm

exProc	macro pName
	ifdef FARCODE
	  ex pName, far
	else
	  ex pName, near
	endif
	endm