PAGE
	SBTTL "--- HARDWARE EQUATES: CBM PLUS/4 ---"

	; ----------------------------------
	; MACHINE-DEPENDENT SOFTWARE EQUATES
	; ----------------------------------

FAST	EQU	$02		; (BYTE) FAST-READ AVAILABLE FLAG

CSHAPE	EQU	$D8		; (BYTE) CURRENT CURSOR SHAPE
COLUMN	EQU	$D9		; (BYTE) CURRENT CURSOR COLUMN
SROW	EQU	$DA		; (WORD) CURRENT SCREEN ROW ADDR
CROW	EQU	$DC		; (WORD) CURRENT COLOR ROW ADDR
BLINK	EQU	$DE		; (WORD) BLINK TIMER

FINDEX	EQU	$E0		; (BYTE) FAST-READ INDEX
FDATA	EQU	$E1		; (BYTE) FAST-READ DATA BUFFER
FASTEN	EQU	$E2		; (BYTE) FAST-READ ENABLE FLAG

	; ---------------------------
	; CBM PLUS/4 HARDWARE EQUATES
	; ---------------------------

COLRAM	EQU	$0800		; COLOR (ATTRIBUTE) RAM
SCREEN	EQU	$0C00		; SCREEN RAM

XSIZE	EQU	39		; X-SIZE OF SCREEN
YSIZE	EQU	24		; Y-SIZE OF SCREEN

EOL	EQU	$0D		; EOL CHAR
SPACE	EQU	$20		; SPACE CHAR
BACKSP	EQU	$14		; BACKSPACE
WHITE	EQU	$51		; WHITE COLOR FOR TEXT

FADDR	EQU	$22		; FUNCTION KEY STRING ADDRESS
FKEY	EQU	$76		; FUNCTION KEY ID
TIME	EQU	$A5		; SYSTEM JIFFY CLOCK
NDX	EQU	$EF		; # CHARS IN KEYBOARD QUEUE
COLOR	EQU	$053B		; TEXT COLOR
BLINKA	EQU	$053C		; BLINK ATTRIBUTE ($80 = BLINK)
SHFLAG	EQU	$0543		; SHIFT KEY FLAG
LINKEN	EQU	$07E9		; LINE LINK ENABLE (BIT 6)

	; ---
	; TED
	; ---

TED	EQU	$FF00		; START OF TED CHIP
T1LSB	EQU	TED		; TIMER #1 LSB
T1MSB	EQU	TED+1		; TIMER #1 MSB
T2LSB	EQU	TED+2		; TIMER #2 LSB
T2MSB	EQU	TED+3		; TIMER #2 MSB
T3LSB	EQU	TED+4		; TIMER #3 LSB
T3MSB	EQU	TED+5		; TIMER #3 MSB
VSCROL	EQU	TED+6		; V-SCROLL, DISPLAY CTRL
HSCROL	EQU	TED+7		; H-SCROLL, DISPLAY CTRL
KEYLAT	EQU	TED+8		; KEYBOARD LATCH
INTREG	EQU	TED+9		; INTERRUPT FLAGS
IMASK	EQU	TED+10		; INTERRUPT MASK
RASTER	EQU	TED+11		; RASTER LSB
CURSH	EQU	TED+12		; CURSOR POSITION MSB
CURSL	EQU	TED+13		; CURSOR POSITION LSB
V1FLSB	EQU	TED+14		; VOICE #1 FREQ LSB
V2FLSB	EQU	TED+15		; VOICE #2 FREQ LSB
V2FMSB	EQU	TED+16		; VOICE #2 FREQ MSB
VOLUME	EQU	TED+17		; VOLUME CTRL/VOICE SELECT
BITMAP	EQU	TED+18		; BITMAP BASE ADDR/VOICE #1 MSB
CHBASE	EQU	TED+19		; CHAR BASE ADDR
SBASE	EQU	TED+20		; SCREEN BASE ADDR
BGCOL0	EQU	TED+21		; BACKGROUND COLOR #0
BGCOL1	EQU	TED+22		; BACKGROUND COLOR #1
BGCOL2	EQU	TED+23		; BACKGROUND COLOR #2
BGCOL3	EQU	TED+24		; BACKGROUND COLOR #3
BORDER	EQU	TED+25		; BORDER COLOR
BMRMSB	EQU	TED+26		; BIT MAP RELOAD MSB
BMRLSB	EQU	TED+27		; BIT MAP RELOAD LSB
VLINEH	EQU	TED+28		; VERTICAL LINE MSB
VLINEL	EQU	TED+29		; VERTICAL LINE LSB
HSCAN	EQU	TED+30		; HORIZONTAL LINE MSB
BLINRT	EQU	TED+31		; BLINK RATE/VERTICAL SUBADDR

ROMIN	EQU	TED+62		; ROM ENABLE
ROMOUT	EQU	TED+63		; ROM DISABLE

	; -------------------
	; KERNAL JUMP VECTORS
	; -------------------

CHKIN	EQU	$FFC6		; OPEN CHANNEL FOR INPUT
CHKOUT	EQU	$FFC9		; OPEN CHANNEL FOR OUTPUT
CHRIN	EQU	$FFCF		; INPUT CHARACTER FROM CHANNEL
CHROUT	EQU	$FFD2		; OUTPUT CHARACTER TO CHANNEL
CLALL	EQU	$FFE7		; CLOSE ALL CHANNELS & FILES
CLOSE	EQU	$FFC3		; CLOSE A FILE
CLRCHN	EQU	$FFCC		; CLEAR CHANNEL
GETIN	EQU	$FFE4		; GET CHAR FROM KEYBOARD QUEUE
OPEN	EQU	$FFC0		; OPEN A FILE
PLOT	EQU	$FFF0		; READ/SET CURSOR POSITION
READST	EQU	$FFB7		; READ I/O STATUS
SETLFS	EQU	$FFBA		; SET FILE ATTRIBUTES
SETMSG	EQU	$FF90		; SET KERNAL MESSAGES
SETNAM	EQU	$FFBD		; SET FILENAME
FUNCT	EQU	$FF49		; DEFINE FUNCTION KEYS

	END