**************************************************
* Apple Standard Memory Locations
**************************************************
CH	EQU   $24
CV	EQU   $25

CLRLORES	equ $F832
LORES	equ $C050
TXTSET	equ $C051
MIXCLR	equ $C052
MIXSET	equ $C053
TXTPAGE1	equ $C054
TXTPAGE2	equ $C055
KEY	equ $C000
C80STOREOFF   equ $C000
C80STOREON    equ $C001
STROBE	equ $C010
SPEAKER	equ $C030
VBL	equ $C02E
RDVBLBAR	equ $C019 ;not VBL (VBL signal low

RAMWRTAUX	equ $C005
RAMWRTMAIN	equ $C004
SETAN3	equ $C05E	;Set annunciator-3 output to 0
SET80VID	equ $C00D	;enable 80-column display mode (WR-only)



COUT	equ $FDED	; Calls the output routine whose address is stored in CSW,
		;  normally COUTI
CLREOL    equ   $FC9C	; Clears to end of line from current cursor position
CLEOLZ	equ $FC9E	; Clear to end ofline using contents of Y register as cursor
		;  position
CLREOP	equ $FC42	; Clears to bottom of window
CLRSCR	equ $F832	; Clears the low-resolution screen
CLRTOP	equ $F836	; Clears the top 40 lines of the low-resolution screen
COUTI	equ $FDF0	; Displays a character on the screen
CROUT	equ $FD8E	; Generates a carriage return
CROUT1	equ $FD8B	; Clears to end ofline and then generates a carriage return
GETLN	equ $FD6A	; Displays the prompt character; accepts a string of characters
		;  by means of RDKEY
HLINE	equ $F819	; Draws a horizontal line of blocks
HOME	equ $FC58	; Clears the window and puts the cursor in the upper left
		;  corner of the window
KEYIN	equ $FD1B	; With 80-column fumware inactive, displays checkerboard
		;  cursor; accepts characters from keyboard
PLOT	equ $F800	; Plots a single low-resolution block on the screen
PRBL2	equ $F94A	; Sends 1 to 256 blank spaces to the output device
PRBYTE	equ $FDDA	; Prints a hexadecimal byte
PRHEX	equ $FDE3	; Prints 4 bits as a hexadecimal number

PRNTAX	equ $F941	; Prints the contents of A and X in hexadecimal format
RDKEY	equ $FD0C	; Displays blinking cursor; goes to standard input
		;  routine, nonnally KEYIN or BASICIN
SCRN	equ $F871	; Reads color of a low-resolution block
SETCOL	equ $F864	; Sets the color for plotting in low-resolution block
VTAB	equ $FC22	; Sets the cursor vertical position (from CV)
VTABZ	equ $FC24	; Sets the cursor vertical position (0)
VLINE	equ $F828	; Draws a vertical line of low-resolution blocks