LST   OFF

* EDD.ROM

********************************
*                              *
*  ESSENTIAL DATA DUPLICATOR   *
*  VERSION 4.8 STANDARD/PLUS   *
*  6502 ASSEMBLY SOURCE CODE   *
*     COPYRIGHT (C) 1987       *
*     ALL RIGHTS RESERVED      *
*      UTILICO MICROWARE       *
*    DONALD ANTHONY SCHNAPP    *
*   PRINTED OCTOBER 28, 1987   *
*                              *
********************************

KEY      EQU   $C000      ; keyboard port
MAINREAD EQU   $C002
AUXREAD  EQU   $C003
MAINWRT  EQU   $C004
AUXWRT   EQU   $C005
STROBE   EQU   $C010      ; clear strobe
SPKR     EQU   $C030      ; speaker
TXTCLR   EQU   $C050      ; graphic mode
TXTSET   EQU   $C051
MIXCLR   EQU   $C052      ; enable full graphics
LOWSCR   EQU   $C054
HISCR    EQU   $C055      ; page 2
HIRES    EQU   $C057      ; hires
ROM      EQU   $C081

* Drive controller

PHASEOFF EQU   $C080
HC088    EQU   $C088
HC089    EQU   $C089
HC08A    EQU   $C08A
HC08B    EQU   $C08B
HC08C    EQU   $C08C
HC08D    EQU   $C08D
HC08E    EQU   $C08E
HC08F    EQU   $C08F
HC0EC    EQU   $C0EC

BASIC    EQU   $E000
ROM_VERSION EQU $FBB3
VTAB     EQU   $FC22      ; pos CV line
HOME     EQU   $FC58      ; clear screen
COUT     EQU   $FDED      ; character out
COUT1    EQU   $FDF0      ; output routine
SETKBD   EQU   $FE89
SETVID   EQU   $FE93
OLDRST   EQU   $FF59