10 REM Scan drive [,drive] 20 MODE6 30 HIMEM=HIMEM-&A00 40 OSRDCH=&FFE0 50 OSASCI=&FFE3 60 OSWORD=&FFF1 70 buffer=&70 80 FORI%=0 TO 3 STEP 3 90 P%=&900 100 [OPTI% 110 .scan 120 LDY #0 130 .findend 140 LDA(&F2),Y:INY:CMP#13:BEQhelp:CMP# 32:BNE findend:BEQ findd1 150 .help 160 JSR print 170 EQUB10 180 EQUS"DFS Scandisk " 190 EQUW&0A0D 200 EQUS"*Scan drive [,drive]" 210 EQUW&0A0D 220 EQUB0 230 RTS ½ Retur n to Basic 310 .findd1 320 LDA(&F2),Y:CMP #32:BNE gck1 330 .skip1 340 INY:LDA(&F2),Y:CMP #32:BEQ skip1 350 .gck1 360 CMP#13:BNE clrbuf1:JMP help 370 .clrbuf1 380 LDA #32:LDX #16 390 .clr1 400 DEX:STA buffer,X:BNE clr1 410 .getd1 420 LDA (&F2),Y:STA buffer,X 430 INY:INX 440 CMP #13:BNE getd1 450 460 .loop 470 LDX xstore 480 LDA buffer,X:INX:STX xstore 490 CMP #13:BEQ end 500 CMP #32:BEQ loop 510 CMP #44:BEQ loop 520 JSR do:JMP loop 530 .end 540 LDA #13:JSR OSASCI 550 RTS ½ Retur n to Basic 560 570 .do 580 SEC:SBC #48:CMP #4:BMI valid:JMP h elp 590 .valid 600 STA drive 610 JSR print 620 EQUB&0D 630 EQUS"Scanning :" 640 EQUB0 650 LDA drive:CLC:ADC #48:JSR OSASCI 660 LDY #0:STY track 670 LDA #46:JSR OSASCI:JSR pdecimal 672 LDA #48:STA errcnt 680 JSR osword 690 LDA ern:BEQ ok1:JSR doerror ½ er ror check 700 .ok1 710 LDX HIMEM+&106:AND #&0F ½ No. sectors hibyte 720 LDA #40:CPX #1:BEQ t40:ASL A 730 .t40 740 STA count:DEC count 750 .loop2 760 INC track 770 JSR pdecimal 780 JSR osword 790 LDA ern:BEQ ok2 ½ error check 800 JSR doerror:BCS out 810 .ok2 820 DEC count:BNE loop2 830 LDA errcnt:CMP #48:BNE out 840 JSR print 850 EQUW&0909 860 EQUW&0909 870 EQUS"ok" 880 EQUB0 890 RTS 900 .out 910 JSR print 920 EQUW&0909 930 EQUW&0909 940 .errcnt EQUB 48 950 EQUS" errors" 960 EQUB0 970 RTS 980 990 .doerror 992 INC errcnt 994 LDA errcnt:CMP #57:BCS errend 1000 LDA #10:JSR OSASCI 1002 .errend 1010 RTS 1020 1030 .pdecimal 1040 LDY track:STY &81 1050 LDA #&30 1060 STA &80 1070 LDA #0 1080 LDX &81 1090 BEQ zero 1100 SED 1110 CLC 1120 .back 1130 ADC #1 1140 BCC nocarry 1150 INC &80 1160 CLC 1170 .nocarry 1180 DEX 1190 BNE back 1200 CLD 1210 .zero 1220 TAY 1230 ½ LDA &80 ½ hundreds 1240 ½ JSR OSASCI 1250 ½ TYA 1260 LSR A 1270 LSR A 1280 LSR A 1290 LSR A 1300 CLC 1310 ADC #&30 1320 JSR OSASCI 1330 TYA 1340 AND #&0F 1350 ADC #&30 1360 JSR OSASCI 1370 LDA #8:JSR OSASCI:JSR OSASCI ½ J SR OSASCI 1380 RTS 1390 1400 .print 1410 LDY #0:PLA:STA pr1+2:PLA:STA pr1+3 1420 .pr1 1430 INY:LDA &FFFF,Y ½DUMMY 1440 JSR OSASCI:BNE pr1 1450 TYA:CLC:ADC pr1+2:TAX:BCC pr2:INC pr1+3 1460 .pr2 1470 LDA pr1+3:PHA:TXA:PHA:RTS 1480 .osword 1490 LDA #&7F:LDX #drive MOD &100:LDY # drive DIV &100:JSR OSWORD:RTS 1500 .drive EQUB 0 1510 EQUB HIMEM MOD &100 1520 EQUB HIMEM DIV &100 1530 EQUB 0 1540 EQUB 0 1550 EQUB 3 1560 EQUB &53 1570 .track EQUB 0 1580 EQUB 0 1590 EQUB &20+10 1600 .ern EQUB 0 1610 .xstore EQUB 0 1620 .count EQUB 0 1640 ] 1650 NEXT 1660 PRINT'" *SAVE SCAN "STR$÷scan" "ST R$÷P%