10 REM SCRNROM - copies rom image
   20 REM onto 20k Mode0 screen
   30 REM (C)1996 SPROW
   40 IFINKEY(-256)<>253 THEN CLS:PRINT"Only suitable for Master"
   45 :
   50 DIM scrnrom% 128
   60 FORX=0TO3STEP3
   70 P%=scrnrom%:oswc=&FFEE
   75 :
   80 [OPTX
   90 LDA#&16:JSRoswc:LDA#0:JSRoswc
  100 \Change to Mode0
  110 SEI:LDA&F4:PHA:LDA#15:STA&F4:STA&FE30:\Change to ROM 15=TERMINAL
  120 .getbyte
  130 .romoff
  140 LDA&8000
  150 .scrnoff
  160 STA&3000
  170 INCromoff+1:INCscrnoff+1:BNEgetbyte
  180 INCromoff+2:INCscrnoff+2
  190 LDAromoff+2:CMP#&C0:BNEgetbyte
  200 .balance
  210 PLA:STA&F4:STA&FE30:CLI:RTS
  220 ]
  230 NEXT
  240 CALLscrnrom%:A=GET:MODE7