Home » Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF » Library/BASIC/FindBadSec
Library/BASIC/FindBadSec
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF |
| Filename: | Library/BASIC/FindBadSec |
| Read OK: | ✔ |
| File size: | 0E82 bytes |
| Load address: | FFFF1D00 |
| Exec address: | FFFF8023 |
Duplicates
There are 7 duplicate copies of this file in the archive:
- AEW website » acp_pres » acp_pres_3_5_discs_Electron-Adfs-E00_A-E00.adf » Library/BASIC/FindBadSec
- AEW website » database » database_3_5_discs_Classic-Card-And-Board-Games-2_A-CCB2.adf » LIBRARY/BASIC/FindBadSec
- Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF » Library/BASIC/FindBadSec
- Personal collection » Acorn ADFS disks » Electron » PRES_E00_backup.ADF » Library/Basic/FindBadSec
- Personal collection » Acorn ADFS disks » Electron » Utilities_1.ADF » LIBRARY/Basic/FindBadSec
- Personal collection » Acorn ADFS disks » Electron » Utilities_2.ADF » LIBRARY/Basic/FindBadSec
- Personal collection » Acorn ADFS disks » Greaseweazled » adfs_E00.adf » Library/BASIC/FindBadSec
- Personal collection » Acorn ADFS disks » Greaseweazled » dfs_box04_disk01b_adfs_welcome_disk_interleaved.adf » Library/BASIC/FindBadSec
File contents
10REM Program "FindBadSec". Finds the bad sectors on a floppy or Winnie.
20REM Looks for faulty sectors by reading the sectors via OSWORD &72.
30REM Asks for drive number, first & last sectors for search window.
40REM Searches a track at a time.
50
55ON ERROR GOTO 960
60MODE6
65or% = ?&1000: ?&1000 = 2
70SectorsPerTrack% = 16: Read = 8: OSWORD = &FFF1
80DIM FCB 16, Buffer &1005
90
100PRINT '' "F I N D B A D S E C T O R - V1.00"'
110
120REPEAT
130INPUT "Drive 0, 1, 4 or 5? " Drive$
140IF Drive$ = "" Drive$ = "0"
150UNTIL Drive$="0" OR Drive$ = "1" OR Drive$ = "4" OR Drive$ = "5"
160PRINT"Reading drive "Drive$
170Drive% = EVAL(Drive$)
180
190REPEAT
200
210 REPEAT
220
230 INPUT '"Which sector should I start at? Type a decimal number or a Hex number preceded by & " FirstSector$
240 IF FirstSector$ = "" THEN FirstSector$ = "0"
250 FirstSector% = EVAL(FirstSector$)
260 PRINT "Starting at sector "; FirstSector% " = &"; ~FirstSector%
270 INPUT '"Which sector should I stop after? " LastSector$
280 IF LastSector$ = "" THEN LastSector$ = "&4FF"
290 LastSector% = EVAL(LastSector$)
300 IF LastSector% < FirstSector% THEN PRINT "Last sector < First sector" ELSE PRINT "Stopping after sector "; LastSector%" = &"; ~LastSector%
310
320 UNTIL LastSector% >= FirstSector%
330
340PRINT '"Insert disc and press a key to start" : Junk% = GET
350OSCLI ("DIR:" + Drive$)
360 REM Reset drive else couldn't do an OSWORD &72 to drive 0 if drive 1 were selected
370REM Now check disc size. First set up FCB for OSWORD call.
380
390!(FCB + 1) = Buffer: ?(FCB + 10) = 0
400REM FCB is set up to read sector 0 in PROC ReadSector0
410PROC_ReadSector0
420TotalSectors% = ?(Buffer + 252) + (?(Buffer + 253))*&100 + (?(Buffer + 254))*&10000
430IF TotalSectors% <= LastSector% THEN PRINT'"This disc only contains &"; ~TotalSectors% " sectors"
440
450UNTIL TotalSectors% > LastSector%
460
480ThisSector% = FirstSector%
490NoOfBadSectors% = 0
500CLS
510PRINT ''''SPC(10) "BAD SECTORS" '" Sector Error code"'" (Dec) (Hex)"'
520VDU28,2,20,39,6
525VDU 23,1,0;0;0;0;
530
540REM Now the real work - read the sectors
550REPEAT
560 SectorsLeftOnTrack% = SectorsPerTrack% - (ThisSector% MOD SectorsPerTrack%)
570Temp% = LastSector% - ThisSector%
580IF Temp% < SectorsLeftOnTrack% THEN SectorsLeftOnTrack% = Temp% + 1
590?(FCB + 6) = (ThisSector% DIV &10000) AND &FF
600?(FCB + 7) = (ThisSector% DIV &100) AND &FF
610?(FCB + 8) = (ThisSector% ) AND &FF
620?(FCB + 9) = SectorsLeftOnTrack%
630
640vpos%=VPOS
650VDU26
660PRINTTAB(4,2)"READING TRACK" ThisSector% DIV 16
670VDU28,2,24,39,8
680PRINTTAB(0,vpos%);
690
700PROC_ReadSectors
710ThisSector% = ((ThisSector% + SectorsPerTrack%) DIV SectorsPerTrack%) * SectorsPerTrack%
720
730
740IF ?FCB = 0 THEN GOTO 900
750
760REM Error has occurred
770NoOfBadSectors% = NoOfBadSectors% + 1
780A% = &73: X% = Buffer AND &FF: Y% = (Buffer DIV &100) AND &FF
790CALL OSWORD
800ThisSector% = ?Buffer + (?(Buffer + 1))*&100 + ((?(Buffer + 2)) AND &1F)*&10000
810Error% = (?(Buffer + 3)) AND &7F
820PROC_ReadSector0
830
840PRINT ; ThisSector%;TAB(8) ~ ThisSector%;TAB(21) ~Error%
850IFNoOfBadSectors% MOD 15 = 0THEN PRINT"Continue?(Y/N) ";: go$ = GET$ :PRINTgo$ :ELSE go$ = "y"
860 ThisSector% = ThisSector% + 1: REM Start on next sector
870IF go$ <> "Y" AND go$ <> "y" THEN GOTO 950
880REM End of error part
890
900
910UNTIL ThisSector% > LastSector%
920
930IF NoOfBadSectors% = 0 PRINT''"Search done, no bad sectors found"
940IF NoOfBadSectors% = 1 PRINT''"Search done, 1 bad sector found"
950IF NoOfBadSectors% > 1 PRINT''"Search done, "; NoOfBadSectors% " bad sectors found"
960?&1000 = or%
970VDU26
975VDU 23,1,1;0;0;0;
980PRINTTAB(0,23)
990END
1000
1010
1020DEFPROC_ReadSector0
1030?FCB=0
1040!(FCB + 5) = Read
1050?(FCB + 9) = 1: REM Read 1 sector
1060PROC_ReadSectors
1070ENDPROC
1080
1090DEFPROC_ReadSectors
1100A% = &72
1110X% = FCB AND &FF: Y% = (FCB DIV &100) AND &FF
1120CALL OSWORD
1130ENDPROC
J� Program "FindBadSec". Finds the bad sectors on a floppy or Winnie.
G� Looks for faulty sectors by reading the sectors via OSWORD &72.
F� Asks for drive number, first & last sectors for search window.
(!� Searches a track at a time.
2
7� � � �d@C
<�6
A or% = ?&1000: ?&1000 = 2
F5SectorsPerTrack% = 16: Read = 8: OSWORD = &FFF1
P � FCB 16, Buffer &1005
Z
d3� '' "F I N D B A D S E C T O R - V1.00"'
n
x�
�%� "Drive 0, 1, 4 or 5? " Drive$
� � Drive$ = "" Drive$ = "0"
�=� Drive$="0" � Drive$ = "1" � Drive$ = "4" � Drive$ = "5"
��"Reading drive "Drive$
�Drive% = �(Drive$)
�
��
�
� �
�
�r � '"Which sector should I start at? Type a decimal number or a Hex number preceded by & " FirstSector$
�0 � FirstSector$ = "" � FirstSector$ = "0"
�& FirstSector% = �(FirstSector$)
G � "Starting at sector "; FirstSector% " = &"; ~FirstSector%
< � '"Which sector should I stop after? " LastSector$
3 � LastSector$ = "" � LastSector$ = "&4FF"
"$ LastSector% = �(LastSector$)
,� � LastSector% < FirstSector% � � "Last sector < First sector" � � "Stopping after sector "; LastSector%" = &"; ~LastSector%
6
@% � LastSector% >= FirstSector%
J
T:� '"Insert disc and press a key to start" : Junk% = �
^� ("DIR:" + Drive$)
hW � Reset drive else couldn't do an OSWORD &72 to drive 0 if drive 1 were selected
r=� Now check disc size. First set up FCB for OSWORD call.
|
�)!(FCB + 1) = Buffer: ?(FCB + 10) = 0
�9� FCB is set up to read sector 0 in PROC ReadSector0
��_ReadSector0
�WTotalSectors% = ?(Buffer + 252) + (?(Buffer + 253))*&100 + (?(Buffer + 254))*&10000
�^� TotalSectors% <= LastSector% � �'"This disc only contains &"; ~TotalSectors% " sectors"
�
�!� TotalSectors% > LastSector%
�
� ThisSector% = FirstSector%
�NoOfBadSectors% = 0
��
�P� ''''�(10) "BAD SECTORS" '" Sector Error code"'" (Dec) (Hex)"'
�28,2,20,39,6
� 23,1,0;0;0;0;
*� Now the real work - read the sectors
&�
0N SectorsLeftOnTrack% = SectorsPerTrack% - (ThisSector% � SectorsPerTrack%)
:%Temp% = LastSector% - ThisSector%
DC� Temp% < SectorsLeftOnTrack% � SectorsLeftOnTrack% = Temp% + 1
N-?(FCB + 6) = (ThisSector% � &10000) � &FF
X,?(FCB + 7) = (ThisSector% � &100) � &FF
b&?(FCB + 8) = (ThisSector% ) � &FF
l$?(FCB + 9) = SectorsLeftOnTrack%
v
� vpos%=�
�
�26
�*�4,2)"READING TRACK" ThisSector% � 16
��28,2,24,39,8
��0,vpos%);
�
��_ReadSectors
�ZThisSector% = ((ThisSector% + SectorsPerTrack%) � SectorsPerTrack%) * SectorsPerTrack%
�
�
�� ?FCB = 0 � � �tDC
�
�� Error has occurred
)NoOfBadSectors% = NoOfBadSectors% + 1
=A% = &73: X% = Buffer � &FF: Y% = (Buffer � &100) � &FF
� OSWORD
RThisSector% = ?Buffer + (?(Buffer + 1))*&100 + ((?(Buffer + 2)) � &1F)*&10000
*"Error% = (?(Buffer + 3)) � &7F
4�_ReadSector0
>
H3� ; ThisSector%;�8) ~ ThisSector%;�21) ~Error%
RP�NoOfBadSectors% � 15 = 0� �"Continue?(Y/N) ";: go$ = � :�go$ :� go$ = "y"
\= ThisSector% = ThisSector% + 1: � Start on next sector
f&� go$ <> "Y" � go$ <> "y" � � �tvC
p� End of error part
z
�
� � ThisSector% > LastSector%
�
�@� NoOfBadSectors% = 0 �''"Search done, no bad sectors found"
�@� NoOfBadSectors% = 1 �''"Search done, 1 bad sector found"
�R� NoOfBadSectors% > 1 �''"Search done, "; NoOfBadSectors% " bad sectors found"
�?&1000 = or%
��26
�� 23,1,1;0;0;0;
� �0,23)
��
�
�
���_ReadSector0
?FCB=0
!(FCB + 5) = Read
+?(FCB + 9) = 1: � Read 1 sector
$�_ReadSectors
.�
8
B��_ReadSectors
L A% = &72
V,X% = FCB � &FF: Y% = (FCB � &100) � &FF
` � OSWORD
j�
� 00000000 0d 00 0a 4a f4 20 20 50 72 6f 67 72 61 6d 20 22 |...J. Program "|
00000010 46 69 6e 64 42 61 64 53 65 63 22 2e 20 20 46 69 |FindBadSec". Fi|
00000020 6e 64 73 20 74 68 65 20 62 61 64 20 73 65 63 74 |nds the bad sect|
00000030 6f 72 73 20 6f 6e 20 61 20 66 6c 6f 70 70 79 20 |ors on a floppy |
00000040 6f 72 20 57 69 6e 6e 69 65 2e 0d 00 14 47 f4 20 |or Winnie....G. |
00000050 4c 6f 6f 6b 73 20 66 6f 72 20 66 61 75 6c 74 79 |Looks for faulty|
00000060 20 73 65 63 74 6f 72 73 20 62 79 20 72 65 61 64 | sectors by read|
00000070 69 6e 67 20 74 68 65 20 73 65 63 74 6f 72 73 20 |ing the sectors |
00000080 76 69 61 20 4f 53 57 4f 52 44 20 26 37 32 2e 20 |via OSWORD &72. |
00000090 20 0d 00 1e 46 f4 20 41 73 6b 73 20 66 6f 72 20 | ...F. Asks for |
000000a0 64 72 69 76 65 20 6e 75 6d 62 65 72 2c 20 66 69 |drive number, fi|
000000b0 72 73 74 20 26 20 6c 61 73 74 20 73 65 63 74 6f |rst & last secto|
000000c0 72 73 20 66 6f 72 20 73 65 61 72 63 68 20 77 69 |rs for search wi|
000000d0 6e 64 6f 77 2e 20 20 0d 00 28 21 f4 20 53 65 61 |ndow. ..(!. Sea|
000000e0 72 63 68 65 73 20 61 20 74 72 61 63 6b 20 61 74 |rches a track at|
000000f0 20 61 20 74 69 6d 65 2e 0d 00 32 05 20 0d 00 37 | a time...2. ..7|
00000100 0e ee 20 85 20 e5 20 8d 64 40 43 0d 00 3c 06 eb |.. . . .d@C..<..|
00000110 36 0d 00 41 1e 6f 72 25 20 3d 20 3f 26 31 30 30 |6..A.or% = ?&100|
00000120 30 3a 20 20 3f 26 31 30 30 30 20 3d 20 32 20 0d |0: ?&1000 = 2 .|
00000130 00 46 35 53 65 63 74 6f 72 73 50 65 72 54 72 61 |.F5SectorsPerTra|
00000140 63 6b 25 20 3d 20 31 36 3a 20 20 52 65 61 64 20 |ck% = 16: Read |
00000150 3d 20 38 3a 20 20 4f 53 57 4f 52 44 20 3d 20 26 |= 8: OSWORD = &|
00000160 46 46 46 31 0d 00 50 1c de 20 46 43 42 20 31 36 |FFF1..P.. FCB 16|
00000170 2c 20 42 75 66 66 65 72 20 26 31 30 30 35 20 20 |, Buffer &1005 |
00000180 0d 00 5a 05 20 0d 00 64 33 f1 20 27 27 20 22 46 |..Z. ..d3. '' "F|
00000190 20 49 20 4e 20 44 20 20 20 42 20 41 20 44 20 20 | I N D B A D |
000001a0 20 53 20 45 20 43 20 54 20 4f 20 52 20 20 2d 20 | S E C T O R - |
000001b0 56 31 2e 30 30 22 27 20 0d 00 6e 05 20 0d 00 78 |V1.00"' ..n. ..x|
000001c0 05 f5 0d 00 82 25 e8 20 22 44 72 69 76 65 20 30 |.....%. "Drive 0|
000001d0 2c 20 31 2c 20 34 20 6f 72 20 35 3f 20 20 22 20 |, 1, 4 or 5? " |
000001e0 44 72 69 76 65 24 20 0d 00 8c 1e e7 20 44 72 69 |Drive$ ..... Dri|
000001f0 76 65 24 20 3d 20 22 22 20 44 72 69 76 65 24 20 |ve$ = "" Drive$ |
00000200 3d 20 22 30 22 0d 00 96 3d fd 20 44 72 69 76 65 |= "0"...=. Drive|
00000210 24 3d 22 30 22 20 84 20 44 72 69 76 65 24 20 3d |$="0" . Drive$ =|
00000220 20 22 31 22 20 84 20 44 72 69 76 65 24 20 3d 20 | "1" . Drive$ = |
00000230 22 34 22 20 84 20 44 72 69 76 65 24 20 3d 20 22 |"4" . Drive$ = "|
00000240 35 22 0d 00 a0 1b f1 22 52 65 61 64 69 6e 67 20 |5"....."Reading |
00000250 64 72 69 76 65 20 22 44 72 69 76 65 24 0d 00 aa |drive "Drive$...|
00000260 16 44 72 69 76 65 25 20 3d 20 a0 28 44 72 69 76 |.Drive% = .(Driv|
00000270 65 24 29 0d 00 b4 05 20 0d 00 be 05 f5 0d 00 c8 |e$).... ........|
00000280 05 20 0d 00 d2 09 20 20 20 20 f5 0d 00 dc 05 20 |. .... ..... |
00000290 0d 00 e6 72 20 20 20 20 e8 20 27 22 57 68 69 63 |...r . '"Whic|
000002a0 68 20 73 65 63 74 6f 72 20 73 68 6f 75 6c 64 20 |h sector should |
000002b0 49 20 73 74 61 72 74 20 61 74 3f 20 20 54 79 70 |I start at? Typ|
000002c0 65 20 61 20 64 65 63 69 6d 61 6c 20 6e 75 6d 62 |e a decimal numb|
000002d0 65 72 20 6f 72 20 61 20 48 65 78 20 6e 75 6d 62 |er or a Hex numb|
000002e0 65 72 20 70 72 65 63 65 64 65 64 20 62 79 20 26 |er preceded by &|
000002f0 20 20 22 20 46 69 72 73 74 53 65 63 74 6f 72 24 | " FirstSector$|
00000300 20 20 0d 00 f0 30 20 20 20 20 e7 20 46 69 72 73 | ...0 . Firs|
00000310 74 53 65 63 74 6f 72 24 20 3d 20 22 22 20 8c 20 |tSector$ = "" . |
00000320 46 69 72 73 74 53 65 63 74 6f 72 24 20 3d 20 22 |FirstSector$ = "|
00000330 30 22 0d 00 fa 26 20 20 20 20 46 69 72 73 74 53 |0"...& FirstS|
00000340 65 63 74 6f 72 25 20 3d 20 a0 28 46 69 72 73 74 |ector% = .(First|
00000350 53 65 63 74 6f 72 24 29 0d 01 04 47 20 20 20 20 |Sector$)...G |
00000360 f1 20 22 53 74 61 72 74 69 6e 67 20 20 20 61 74 |. "Starting at|
00000370 20 20 73 65 63 74 6f 72 20 22 3b 20 46 69 72 73 | sector "; Firs|
00000380 74 53 65 63 74 6f 72 25 20 22 20 20 3d 20 26 22 |tSector% " = &"|
00000390 3b 20 7e 46 69 72 73 74 53 65 63 74 6f 72 25 0d |; ~FirstSector%.|
000003a0 01 0e 3c 20 20 20 20 e8 20 27 22 57 68 69 63 68 |..< . '"Which|
000003b0 20 73 65 63 74 6f 72 20 73 68 6f 75 6c 64 20 49 | sector should I|
000003c0 20 73 74 6f 70 20 61 66 74 65 72 3f 20 22 20 4c | stop after? " L|
000003d0 61 73 74 53 65 63 74 6f 72 24 20 0d 01 18 33 20 |astSector$ ...3 |
000003e0 20 20 20 e7 20 4c 61 73 74 53 65 63 74 6f 72 24 | . LastSector$|
000003f0 20 3d 20 22 22 20 8c 20 4c 61 73 74 53 65 63 74 | = "" . LastSect|
00000400 6f 72 24 20 3d 20 22 26 34 46 46 22 20 20 0d 01 |or$ = "&4FF" ..|
00000410 22 24 20 20 20 20 4c 61 73 74 53 65 63 74 6f 72 |"$ LastSector|
00000420 25 20 3d 20 a0 28 4c 61 73 74 53 65 63 74 6f 72 |% = .(LastSector|
00000430 24 29 0d 01 2c 84 20 20 20 20 e7 20 4c 61 73 74 |$)..,. . Last|
00000440 53 65 63 74 6f 72 25 20 3c 20 46 69 72 73 74 53 |Sector% < FirstS|
00000450 65 63 74 6f 72 25 20 8c 20 f1 20 22 4c 61 73 74 |ector% . . "Last|
00000460 20 73 65 63 74 6f 72 20 3c 20 46 69 72 73 74 20 | sector < First |
00000470 73 65 63 74 6f 72 22 20 8b 20 f1 20 22 53 74 6f |sector" . . "Sto|
00000480 70 70 69 6e 67 20 61 66 74 65 72 20 73 65 63 74 |pping after sect|
00000490 6f 72 20 22 3b 20 4c 61 73 74 53 65 63 74 6f 72 |or "; LastSector|
000004a0 25 22 20 20 3d 20 26 22 3b 20 7e 4c 61 73 74 53 |%" = &"; ~LastS|
000004b0 65 63 74 6f 72 25 0d 01 36 05 20 0d 01 40 25 20 |ector%..6. ..@% |
000004c0 20 20 20 fd 20 4c 61 73 74 53 65 63 74 6f 72 25 | . LastSector%|
000004d0 20 3e 3d 20 46 69 72 73 74 53 65 63 74 6f 72 25 | >= FirstSector%|
000004e0 0d 01 4a 05 20 0d 01 54 3a f1 20 27 22 49 6e 73 |..J. ..T:. '"Ins|
000004f0 65 72 74 20 64 69 73 63 20 61 6e 64 20 70 72 65 |ert disc and pre|
00000500 73 73 20 61 20 6b 65 79 20 74 6f 20 73 74 61 72 |ss a key to star|
00000510 74 22 20 3a 20 4a 75 6e 6b 25 20 3d 20 a5 20 0d |t" : Junk% = . .|
00000520 01 5e 17 ff 20 28 22 44 49 52 3a 22 20 2b 20 44 |.^.. ("DIR:" + D|
00000530 72 69 76 65 24 29 0d 01 68 57 20 20 f4 20 20 52 |rive$)..hW . R|
00000540 65 73 65 74 20 64 72 69 76 65 20 65 6c 73 65 20 |eset drive else |
00000550 63 6f 75 6c 64 6e 27 74 20 64 6f 20 61 6e 20 4f |couldn't do an O|
00000560 53 57 4f 52 44 20 26 37 32 20 74 6f 20 64 72 69 |SWORD &72 to dri|
00000570 76 65 20 30 20 69 66 20 64 72 69 76 65 20 31 20 |ve 0 if drive 1 |
00000580 77 65 72 65 20 73 65 6c 65 63 74 65 64 0d 01 72 |were selected..r|
00000590 3d f4 20 4e 6f 77 20 63 68 65 63 6b 20 64 69 73 |=. Now check dis|
000005a0 63 20 73 69 7a 65 2e 20 20 46 69 72 73 74 20 73 |c size. First s|
000005b0 65 74 20 75 70 20 46 43 42 20 66 6f 72 20 4f 53 |et up FCB for OS|
000005c0 57 4f 52 44 20 63 61 6c 6c 2e 0d 01 7c 05 20 0d |WORD call...|. .|
000005d0 01 86 29 21 28 46 43 42 20 2b 20 31 29 20 3d 20 |..)!(FCB + 1) = |
000005e0 42 75 66 66 65 72 3a 20 20 3f 28 46 43 42 20 2b |Buffer: ?(FCB +|
000005f0 20 31 30 29 20 3d 20 30 0d 01 90 39 f4 20 20 46 | 10) = 0...9. F|
00000600 43 42 20 69 73 20 73 65 74 20 75 70 20 74 6f 20 |CB is set up to |
00000610 72 65 61 64 20 73 65 63 74 6f 72 20 30 20 69 6e |read sector 0 in|
00000620 20 50 52 4f 43 20 52 65 61 64 53 65 63 74 6f 72 | PROC ReadSector|
00000630 30 0d 01 9a 11 f2 5f 52 65 61 64 53 65 63 74 6f |0....._ReadSecto|
00000640 72 30 0d 01 a4 57 54 6f 74 61 6c 53 65 63 74 6f |r0...WTotalSecto|
00000650 72 73 25 20 3d 20 3f 28 42 75 66 66 65 72 20 2b |rs% = ?(Buffer +|
00000660 20 32 35 32 29 20 2b 20 28 3f 28 42 75 66 66 65 | 252) + (?(Buffe|
00000670 72 20 2b 20 32 35 33 29 29 2a 26 31 30 30 20 2b |r + 253))*&100 +|
00000680 20 28 3f 28 42 75 66 66 65 72 20 2b 20 32 35 34 | (?(Buffer + 254|
00000690 29 29 2a 26 31 30 30 30 30 0d 01 ae 5e e7 20 54 |))*&10000...^. T|
000006a0 6f 74 61 6c 53 65 63 74 6f 72 73 25 20 3c 3d 20 |otalSectors% <= |
000006b0 4c 61 73 74 53 65 63 74 6f 72 25 20 8c 20 f1 27 |LastSector% . .'|
000006c0 22 54 68 69 73 20 64 69 73 63 20 6f 6e 6c 79 20 |"This disc only |
000006d0 63 6f 6e 74 61 69 6e 73 20 26 22 3b 20 7e 54 6f |contains &"; ~To|
000006e0 74 61 6c 53 65 63 74 6f 72 73 25 20 22 20 73 65 |talSectors% " se|
000006f0 63 74 6f 72 73 22 20 0d 01 b8 05 20 0d 01 c2 21 |ctors" .... ...!|
00000700 fd 20 54 6f 74 61 6c 53 65 63 74 6f 72 73 25 20 |. TotalSectors% |
00000710 3e 20 4c 61 73 74 53 65 63 74 6f 72 25 0d 01 cc |> LastSector%...|
00000720 05 20 0d 01 e0 1e 54 68 69 73 53 65 63 74 6f 72 |. ....ThisSector|
00000730 25 20 3d 20 46 69 72 73 74 53 65 63 74 6f 72 25 |% = FirstSector%|
00000740 0d 01 ea 17 4e 6f 4f 66 42 61 64 53 65 63 74 6f |....NoOfBadSecto|
00000750 72 73 25 20 3d 20 30 0d 01 f4 05 db 0d 01 fe 50 |rs% = 0........P|
00000760 f1 20 27 27 27 27 89 28 31 30 29 20 22 42 41 44 |. ''''.(10) "BAD|
00000770 20 53 45 43 54 4f 52 53 22 20 27 22 20 20 20 20 | SECTORS" '" |
00000780 53 65 63 74 6f 72 20 20 20 20 20 20 20 20 20 45 |Sector E|
00000790 72 72 6f 72 20 63 6f 64 65 22 27 22 20 28 44 65 |rror code"'" (De|
000007a0 63 29 20 20 20 28 48 65 78 29 22 27 0d 02 08 11 |c) (Hex)"'....|
000007b0 ef 32 38 2c 32 2c 32 30 2c 33 39 2c 36 0d 02 0d |.28,2,20,39,6...|
000007c0 13 ef 20 32 33 2c 31 2c 30 3b 30 3b 30 3b 30 3b |.. 23,1,0;0;0;0;|
000007d0 0d 02 12 05 20 0d 02 1c 2a f4 20 4e 6f 77 20 74 |.... ...*. Now t|
000007e0 68 65 20 72 65 61 6c 20 77 6f 72 6b 20 2d 20 72 |he real work - r|
000007f0 65 61 64 20 74 68 65 20 73 65 63 74 6f 72 73 0d |ead the sectors.|
00000800 02 26 05 f5 0d 02 30 4e 20 53 65 63 74 6f 72 73 |.&....0N Sectors|
00000810 4c 65 66 74 4f 6e 54 72 61 63 6b 25 20 3d 20 53 |LeftOnTrack% = S|
00000820 65 63 74 6f 72 73 50 65 72 54 72 61 63 6b 25 20 |ectorsPerTrack% |
00000830 2d 20 28 54 68 69 73 53 65 63 74 6f 72 25 20 83 |- (ThisSector% .|
00000840 20 53 65 63 74 6f 72 73 50 65 72 54 72 61 63 6b | SectorsPerTrack|
00000850 25 29 0d 02 3a 25 54 65 6d 70 25 20 3d 20 4c 61 |%)..:%Temp% = La|
00000860 73 74 53 65 63 74 6f 72 25 20 2d 20 54 68 69 73 |stSector% - This|
00000870 53 65 63 74 6f 72 25 0d 02 44 43 e7 20 54 65 6d |Sector%..DC. Tem|
00000880 70 25 20 3c 20 53 65 63 74 6f 72 73 4c 65 66 74 |p% < SectorsLeft|
00000890 4f 6e 54 72 61 63 6b 25 20 8c 20 53 65 63 74 6f |OnTrack% . Secto|
000008a0 72 73 4c 65 66 74 4f 6e 54 72 61 63 6b 25 20 3d |rsLeftOnTrack% =|
000008b0 20 54 65 6d 70 25 20 2b 20 31 0d 02 4e 2d 3f 28 | Temp% + 1..N-?(|
000008c0 46 43 42 20 2b 20 36 29 20 3d 20 28 54 68 69 73 |FCB + 6) = (This|
000008d0 53 65 63 74 6f 72 25 20 81 20 26 31 30 30 30 30 |Sector% . &10000|
000008e0 29 20 80 20 26 46 46 0d 02 58 2c 3f 28 46 43 42 |) . &FF..X,?(FCB|
000008f0 20 2b 20 37 29 20 3d 20 28 54 68 69 73 53 65 63 | + 7) = (ThisSec|
00000900 74 6f 72 25 20 81 20 26 31 30 30 29 20 80 20 26 |tor% . &100) . &|
00000910 46 46 20 0d 02 62 26 3f 28 46 43 42 20 2b 20 38 |FF ..b&?(FCB + 8|
00000920 29 20 3d 20 28 54 68 69 73 53 65 63 74 6f 72 25 |) = (ThisSector%|
00000930 20 29 20 80 20 26 46 46 20 0d 02 6c 24 3f 28 46 | ) . &FF ..l$?(F|
00000940 43 42 20 2b 20 39 29 20 3d 20 53 65 63 74 6f 72 |CB + 9) = Sector|
00000950 73 4c 65 66 74 4f 6e 54 72 61 63 6b 25 0d 02 76 |sLeftOnTrack%..v|
00000960 05 20 0d 02 80 0b 76 70 6f 73 25 3d bc 0d 02 8a |. ....vpos%=....|
00000970 0a ef 32 36 20 20 20 0d 02 94 2a f1 8a 34 2c 32 |..26 ...*..4,2|
00000980 29 22 52 45 41 44 49 4e 47 20 54 52 41 43 4b 22 |)"READING TRACK"|
00000990 20 54 68 69 73 53 65 63 74 6f 72 25 20 81 20 31 | ThisSector% . 1|
000009a0 36 0d 02 9e 11 ef 32 38 2c 32 2c 32 34 2c 33 39 |6.....28,2,24,39|
000009b0 2c 38 0d 02 a8 0f f1 8a 30 2c 76 70 6f 73 25 29 |,8......0,vpos%)|
000009c0 3b 0d 02 b2 05 20 0d 02 bc 11 f2 5f 52 65 61 64 |;.... ....._Read|
000009d0 53 65 63 74 6f 72 73 0d 02 c6 5a 54 68 69 73 53 |Sectors...ZThisS|
000009e0 65 63 74 6f 72 25 20 3d 20 28 28 54 68 69 73 53 |ector% = ((ThisS|
000009f0 65 63 74 6f 72 25 20 2b 20 53 65 63 74 6f 72 73 |ector% + Sectors|
00000a00 50 65 72 54 72 61 63 6b 25 29 20 81 20 53 65 63 |PerTrack%) . Sec|
00000a10 74 6f 72 73 50 65 72 54 72 61 63 6b 25 29 20 2a |torsPerTrack%) *|
00000a20 20 53 65 63 74 6f 72 73 50 65 72 54 72 61 63 6b | SectorsPerTrack|
00000a30 25 0d 02 d0 05 20 0d 02 da 05 20 0d 02 e4 17 e7 |%.... .... .....|
00000a40 20 3f 46 43 42 20 3d 20 30 20 8c 20 e5 20 8d 74 | ?FCB = 0 . . .t|
00000a50 44 43 0d 02 ee 05 20 0d 02 f8 19 f4 20 20 45 72 |DC.... ..... Er|
00000a60 72 6f 72 20 68 61 73 20 6f 63 63 75 72 72 65 64 |ror has occurred|
00000a70 0d 03 02 29 4e 6f 4f 66 42 61 64 53 65 63 74 6f |...)NoOfBadSecto|
00000a80 72 73 25 20 3d 20 4e 6f 4f 66 42 61 64 53 65 63 |rs% = NoOfBadSec|
00000a90 74 6f 72 73 25 20 2b 20 31 0d 03 0c 3d 41 25 20 |tors% + 1...=A% |
00000aa0 3d 20 26 37 33 3a 20 20 58 25 20 3d 20 42 75 66 |= &73: X% = Buf|
00000ab0 66 65 72 20 80 20 26 46 46 3a 20 20 59 25 20 3d |fer . &FF: Y% =|
00000ac0 20 28 42 75 66 66 65 72 20 81 20 26 31 30 30 29 | (Buffer . &100)|
00000ad0 20 80 20 26 46 46 0d 03 16 0c d6 20 4f 53 57 4f | . &FF..... OSWO|
00000ae0 52 44 0d 03 20 52 54 68 69 73 53 65 63 74 6f 72 |RD.. RThisSector|
00000af0 25 20 3d 20 3f 42 75 66 66 65 72 20 2b 20 28 3f |% = ?Buffer + (?|
00000b00 28 42 75 66 66 65 72 20 2b 20 31 29 29 2a 26 31 |(Buffer + 1))*&1|
00000b10 30 30 20 2b 20 28 28 3f 28 42 75 66 66 65 72 20 |00 + ((?(Buffer |
00000b20 2b 20 32 29 29 20 80 20 26 31 46 29 2a 26 31 30 |+ 2)) . &1F)*&10|
00000b30 30 30 30 20 0d 03 2a 22 45 72 72 6f 72 25 20 3d |000 ..*"Error% =|
00000b40 20 28 3f 28 42 75 66 66 65 72 20 2b 20 33 29 29 | (?(Buffer + 3))|
00000b50 20 80 20 26 37 46 0d 03 34 11 f2 5f 52 65 61 64 | . &7F..4.._Read|
00000b60 53 65 63 74 6f 72 30 0d 03 3e 05 20 0d 03 48 33 |Sector0..>. ..H3|
00000b70 f1 20 3b 20 54 68 69 73 53 65 63 74 6f 72 25 3b |. ; ThisSector%;|
00000b80 8a 38 29 20 7e 20 54 68 69 73 53 65 63 74 6f 72 |.8) ~ ThisSector|
00000b90 25 3b 8a 32 31 29 20 7e 45 72 72 6f 72 25 20 0d |%;.21) ~Error% .|
00000ba0 03 52 50 e7 4e 6f 4f 66 42 61 64 53 65 63 74 6f |.RP.NoOfBadSecto|
00000bb0 72 73 25 20 83 20 31 35 20 3d 20 30 8c 20 f1 22 |rs% . 15 = 0. ."|
00000bc0 43 6f 6e 74 69 6e 75 65 3f 28 59 2f 4e 29 20 22 |Continue?(Y/N) "|
00000bd0 3b 3a 20 20 67 6f 24 20 3d 20 be 20 3a f1 67 6f |;: go$ = . :.go|
00000be0 24 20 3a 8b 20 67 6f 24 20 3d 20 22 79 22 20 0d |$ :. go$ = "y" .|
00000bf0 03 5c 3d 20 54 68 69 73 53 65 63 74 6f 72 25 20 |.\= ThisSector% |
00000c00 3d 20 54 68 69 73 53 65 63 74 6f 72 25 20 2b 20 |= ThisSector% + |
00000c10 31 3a 20 20 20 20 f4 20 53 74 61 72 74 20 6f 6e |1: . Start on|
00000c20 20 6e 65 78 74 20 73 65 63 74 6f 72 0d 03 66 26 | next sector..f&|
00000c30 e7 20 67 6f 24 20 3c 3e 20 22 59 22 20 80 20 67 |. go$ <> "Y" . g|
00000c40 6f 24 20 3c 3e 20 22 79 22 20 8c 20 e5 20 8d 74 |o$ <> "y" . . .t|
00000c50 76 43 0d 03 70 18 f4 20 20 45 6e 64 20 6f 66 20 |vC..p.. End of |
00000c60 65 72 72 6f 72 20 70 61 72 74 0d 03 7a 05 20 0d |error part..z. .|
00000c70 03 84 05 20 0d 03 8e 1f fd 20 54 68 69 73 53 65 |... ..... ThisSe|
00000c80 63 74 6f 72 25 20 3e 20 4c 61 73 74 53 65 63 74 |ctor% > LastSect|
00000c90 6f 72 25 0d 03 98 05 20 0d 03 a2 40 e7 20 4e 6f |or%.... ...@. No|
00000ca0 4f 66 42 61 64 53 65 63 74 6f 72 73 25 20 3d 20 |OfBadSectors% = |
00000cb0 30 20 f1 27 27 22 53 65 61 72 63 68 20 64 6f 6e |0 .''"Search don|
00000cc0 65 2c 20 6e 6f 20 62 61 64 20 73 65 63 74 6f 72 |e, no bad sector|
00000cd0 73 20 66 6f 75 6e 64 22 0d 03 ac 40 e7 20 4e 6f |s found"...@. No|
00000ce0 4f 66 42 61 64 53 65 63 74 6f 72 73 25 20 20 3d |OfBadSectors% =|
00000cf0 20 31 20 f1 27 27 22 53 65 61 72 63 68 20 64 6f | 1 .''"Search do|
00000d00 6e 65 2c 20 31 20 62 61 64 20 73 65 63 74 6f 72 |ne, 1 bad sector|
00000d10 20 66 6f 75 6e 64 22 20 0d 03 b6 52 e7 20 4e 6f | found" ...R. No|
00000d20 4f 66 42 61 64 53 65 63 74 6f 72 73 25 20 3e 20 |OfBadSectors% > |
00000d30 31 20 f1 27 27 22 53 65 61 72 63 68 20 64 6f 6e |1 .''"Search don|
00000d40 65 2c 20 22 3b 20 4e 6f 4f 66 42 61 64 53 65 63 |e, "; NoOfBadSec|
00000d50 74 6f 72 73 25 20 22 20 62 61 64 20 73 65 63 74 |tors% " bad sect|
00000d60 6f 72 73 20 66 6f 75 6e 64 22 0d 03 c0 10 3f 26 |ors found"....?&|
00000d70 31 30 30 30 20 3d 20 6f 72 25 0d 03 ca 07 ef 32 |1000 = or%.....2|
00000d80 36 0d 03 cf 13 ef 20 32 33 2c 31 2c 31 3b 30 3b |6..... 23,1,1;0;|
00000d90 30 3b 30 3b 0d 03 d4 0b f1 8a 30 2c 32 33 29 0d |0;0;......0,23).|
00000da0 03 de 05 e0 0d 03 e8 05 20 0d 03 f2 05 20 0d 03 |........ .... ..|
00000db0 fc 12 dd f2 5f 52 65 61 64 53 65 63 74 6f 72 30 |...._ReadSector0|
00000dc0 0d 04 06 0a 3f 46 43 42 3d 30 0d 04 10 15 21 28 |....?FCB=0....!(|
00000dd0 46 43 42 20 2b 20 35 29 20 3d 20 52 65 61 64 0d |FCB + 5) = Read.|
00000de0 04 1a 2b 3f 28 46 43 42 20 2b 20 39 29 20 3d 20 |..+?(FCB + 9) = |
00000df0 31 3a 20 20 20 20 20 20 20 20 20 f4 20 52 65 61 |1: . Rea|
00000e00 64 20 31 20 73 65 63 74 6f 72 0d 04 24 11 f2 5f |d 1 sector..$.._|
00000e10 52 65 61 64 53 65 63 74 6f 72 73 0d 04 2e 05 e1 |ReadSectors.....|
00000e20 0d 04 38 05 20 0d 04 42 12 dd f2 5f 52 65 61 64 |..8. ..B..._Read|
00000e30 53 65 63 74 6f 72 73 0d 04 4c 0c 41 25 20 3d 20 |Sectors..L.A% = |
00000e40 26 37 32 0d 04 56 2c 58 25 20 3d 20 46 43 42 20 |&72..V,X% = FCB |
00000e50 80 20 26 46 46 3a 20 20 59 25 20 3d 20 28 46 43 |. &FF: Y% = (FC|
00000e60 42 20 81 20 26 31 30 30 29 20 80 20 26 46 46 0d |B . &100) . &FF.|
00000e70 04 60 0c d6 20 4f 53 57 4f 52 44 0d 04 6a 05 e1 |.`.. OSWORD..j..|
00000e80 0d ff |..|
00000e82 
Library/BASIC/FindBadSec.m0
Library/BASIC/FindBadSec.m1
Library/BASIC/FindBadSec.m2
Library/BASIC/FindBadSec.m4
Library/BASIC/FindBadSec.m5
.