;This is a macro library for standard ROM
;Calls Jumps and returns from within an
;Option ROM
;The macro format and file name are
;Compatible with Digital Research's RMAC and
;MAC Assemblers
;If you are using a linker to link to the ROMHD.ASM
;File then you will have to declare STDON as an EXTRN
;and Decalre STDON within the ROMHD.ASM file as a 
;PUBLIC.

;Macro to call a Standard ROM routine
;Syntax:
;	SCALL	4b44h

SCALL	MACRO	ADDRESS
	RST	6
	DW	ADDRESS
	ENDM

;Macro to jump to a Standard ROM routine
;Syntax:
;	SJMP	5797h

SJMP	MACRO	ADDRESS
;Optional for linkers
;	EXTRN	STDON
	PUSH	H
	LXI	H,ADDRESS
	XTHL
	JMP	STDON
	ENDM

;Macro to return to a Standard ROM Routine
;Syntax:
;	SRET

STDRET	MACRO
;Optional for linking version
;	EXTRN	STDON
	JMP	STDON
	ENDM