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2275 EF17 E0 3C OUTD1A CPX #60 ;LAST CHAR FOR DISP?
2276 EF19 90 05 BCC OUTD2
2277 EF1B 20 AC EB JSR PLXY ;GO BACK
2278 EF1E 68 PLA ;DO NOT STORE
2279 EF1F 60 RTS
2280 EF20 9D 38 A4 OUTD2 STA DIBUFF,X ;PUT CHAR IN BUFF
2281 EF23 EE 15 A4 INC CURPO2 ;INC POINTER
2282 EF26 E0 14 CPX #20 ;DISPLAY FULL?
2283 EF28 90 1E BCC OUTD4
2284 EF2A 20 2F EF JSR OUTD2A ;THIS WAY SCROLL IS A SUBR
2285 EF2D 30 47 BMI OUTD7 ;EXIT DISP
2286 EF2F ;YES, SCROLL CHARS TO THE LEFT
2287 EF2F 8A OUTD2A TXA ;X---> Y
2288 EF30 A8 TAY
2289 EF31 A2 13 LDX #19 ;ADDR FOR DISP DO NOT
2290 EF33 8E 27 A4 OUTD3 STX STIY ;DECREM IN BINARY
2291 EF36 B9 38 A4 LDA DIBUFF,Y ;FROM BUFFER TO DISP
2292 EF39 09 80 ORA #$80 ;NO CURSOR
2293 EF3B 20 7B EF JSR OUTDD1 ;CONVERT X INTO REAL ADDR
2294 EF3E 88 DEY
2295 EF3F CE 27 A4 DEC STIY
2296 EF42 AE 27 A4 LDX STIY
2297 EF45 10 EC BPL OUTD3 ;AGAIN UNTIL WHOLE DISP
2298 EF47 60 RTS
2299 EF48 48 OUTD4 PHA
2300 EF49 09 80 ORA #$80 ;NO CURSOR
2301 EF4B 20 7B EF JSR OUTDD1 ;X=<$19 ,CONVRT TO REAL ADDR
2302 EF4E 68 PLA
2303 EF4F 29 80 AND #$80 ;IF MSB=0 CLEAR REST OF DISPLAY
2304 EF51 D0 23 BNE OUTD7
2305 EF53 AE 15 A4 LDX CURPO2
2306 EF56 ;CLEAR DISP TO THE RIGHT
2307 EF56 E0 14 OUTD5 CPX #20
2308 EF58 B0 1C BCS OUTD7
2309 EF5A 8E 27 A4 STX STIY
2310 EF5D A9 A0 LDA #' '+$80 ;<SPACE>
2311 EF5F 20 7B EF JSR OUTDD1 ;CONVRT TO REAL ADDR
2312 EF62 EE 27 A4 INC STIY
2313 EF65 AE 27 A4 LDX STIY
2314 EF68 D0 EC BNE OUTD5 ;GO NEXT
2315 EF6A 4C 76 EF JMP OUTD7
2316 EF6D EA NOP
2317 EF6E EA NOP
2318 EF6F EA NOP
2319 EF70 EA NOP
2320 EF71 EA NOP
2321 EF72 EA NOP
2322 EF73 EA NOP
2323 EF74 EA NOP
2324 EF75 EA NOP
2325 EF76 20 AC EB OUTD7 JSR PLXY ;REST ,SO PRINTR INDEPEN
2326 EF79 68 PLA
2327 EF7A 60 RTS
2328 EF7B
2329 EF7B ;CONVERT X INTO REAL ADDR FOR DISPLAY
2330 EF7B ;AND OUTPUT IT PB=DATA ; PA=W,CE ,A0 A1 (6520)
2331 EF7B 48 OUTDD1 PHA ;SAVE DATA
2332 EF7C 8A TXA
2333 EF7D 48 PHA ;SAVE X
2334 EF7E 4A LSR A ;DIVIDE X BY 4
2335 EF7F 4A LSR A ;TO GET CHIP SELECT
2336 EF80 AA TAX ;BACK TO X