;
; MARK IV HARDWARE DEFINITIONS
;
RAMBIAS		.EQU	512		; RAM STARTS AT 512K
;
MK4_BASE	.EQU	$80		; I/O BASE ADDRESS FOR ONBOARD PERIPHERALS
;
MK4_IDE		.EQU	MK4_BASE + $00	; IDE REGISTERS ($00-$07, $0E-$0F)
MK4_XAR		.EQU	MK4_BASE + $08	; EXTERNAL ADDRESS REGISTER (XAR)
MK4_SD		.EQU	MK4_BASE + $09	; SD CARD CONTROL REGISTER
MK4_RTC		.EQU	MK4_BASE + $0A	; RTC INTERFACE REGISTER
;
RTC		.EQU	MK4_RTC		; GENERIC ALIAS FOR RTC PORT
;
Z180_BASE	.EQU	$40		; I/O BASE ADDRESS FOR INTERNAL Z180 REGISTERS
#INCLUDE "z180.inc"