i_odef

.PAGE 'I/ODEF'
;*****************************
;*      I/O DEFINITIONS      *
;*****************************
;
UNLSN	=$3F            ; IEEE UNLISTEN COMMAND
NOTRDY	=$0             ; NOT READY
TALKER	=$80            ; IEEE TALKER FLAG
LISNER	=1 ; IEEE LISTENER FLAG
EOIOUT	=$80            ; TALK WITH EOI
EOISND	=$08            ; NOT(EOI) TO SEND
RDYTLK	=$88            ; TALK NO EOI
RDYLST	=$1             ; READY TO LISTEN
RNDRDY	=RDYTLK+RDYLST  ; RANDOM CHNRDY
RNDEOI	=EOIOUT+RDYLST  ; RANDOM W/ EOI
.SKI 3
;I/O REGISTERS
.SKIP
; MOS 6532-1
.SKI
	* =$200
IEEEDI	*=*+1           ;IEEE DATA IN
PADD1	*=*+1           ;IEEE DATA DIR
IEEEDO	*=*+1           ;IEEE DATA OUT
PBDD1	*=*+1           ;IEEE DATA OUT DIR
.SKIP2
; MOS 6532-2
.SKIP
	* =$280         ;IEEE CONTROL PORT  
PAD2	*=*+1
ATNA	=1
DACO	=2 ;(INVERTED)
RFDO	=4
EOIO	=8
DAVO	=16
EOII	=32
DAVI	=64
ATNI	=128            ;(INVERTED)
PADD2	*=*+1
PBD2	*=*+1
;BITS 0-2 =DEVICE # SELECT
LED1	=$8             ;ACTIVE LED 1
LED0	=$10            ;ACTIVE LED 0
ERRLED	=32             ;HARDWARE INIT ERR LED
NDACI	=64
NRFDI	=128
PBDD2	*=*+1
ATNND	*=*+1           ;ATN IS IRQ CAUSING
ATNPD	*=*+1
ATNNE	*=*+1
ATNPE	*=*+1
.END