/ D.I.S.C. 4 / D.I.S.C. 4.adf / 6c

< prev

next >

view JSON data

view as text

open on a Mac

open on a PC

+--------+-------------------------+-------------------------+--------+--------+
|00000000| 19 00 00 6d 66 6d 35 00 | 20 43 4f 4d 4d 41 4e 44 |...mfm5.| COMMAND|
|00000010| 20 4f 56 45 52 56 49 45 | 57 20 21 ff 00 24 0e 01 | OVERVIE|W !..$..|
|00000020| 00 e0 0f f0 0f 00 00 f0 | 00 0f 09 99 09 99 ff 00 |........|........|
|00000030| 1a 0d 20 6d 6f 76 65 2e | 77 20 20 64 30 2c 64 31 |.. move.|w  d0,d1|
|00000040| ff 20 03 10 3b 73 74 6f | 72 65 20 6d 61 73 6b 20 |. ..;sto|re mask |
|00000050| 69 6e 20 64 31 ff 00 2d | 0c 61 64 64 2e 77 20 20 |in d1..-|.add.w  |
|00000060| 20 64 30 2c 64 30 ff 20 | 03 0c 3b 73 68 69 66 74 | d0,d0. |..;shift|
|00000070| 20 31 20 6c 65 66 74 ff | 00 31 1e 6c 73 72 2e 77 | 1 left.|.1.lsr.w|
|00000080| 20 20 20 23 31 2c 64 31 | 00 00 00 20 3b 73 68 69 |   #1,d1|... ;shi|
|00000090| 66 74 20 31 20 72 69 67 | 68 74 ff 00 30 03 62 73 |ft 1 rig|ht..0.bs|
|000000a0| 65 74 ff 20 03 1d 23 31 | 35 2c 64 31 20 20 20 3b |et. ..#1|5,d1   ;|
|000000b0| 73 65 74 20 68 69 67 68 | 65 73 74 20 74 61 63 74 |set high|est tact|
|000000c0| 2d 62 69 74 ff 00 29 1d | 61 6e 64 2e 77 20 20 20 |-bit..).|and.w   |
|000000d0| 64 31 2c 64 30 00 00 20 | 20 3b 64 30 3d 64 30 20 |d1,d0.. | ;d0=d0 |
|000000e0| 41 4e 44 20 64 31 ff 00 | 31 03 6f 72 2e 77 ff 20 |AND d1..|1.or.w. |
|000000f0| 03 1f 64 32 2c 64 30 20 | 20 00 20 3b 74 61 63 74 |..d2,d0 | . ;tact|
|00000100| 2d 62 69 74 73 20 4f 52 | 20 64 61 74 61 2d 62 69 |-bits OR| data-bi|
|00000110| 74 73 ff 00 27 03 62 74 | 73 74 ff 20 03 25 23 30 |ts..'.bt|st. .%#0|
|00000120| 2c 2d 31 28 61 30 29 3b | 74 65 73 74 20 64 61 74 |,-1(a0);|test dat|
|00000130| 61 2d 62 69 74 20 6f 66 | 20 77 6f 72 64 20 62 65 |a-bit of| word be|
|00000140| 66 6f 72 65 ff 00 21 32 | 62 65 71 2e 73 20 20 20 |fore..!2|beq.s   |
|00000150| 74 61 63 74 6f 6b 00 00 | 00 3b 69 66 20 62 69 74 |tactok..|.;if bit|
|00000160| 3d 30 20 74 68 65 6e 20 | 6e 65 78 74 20 74 61 63 |=0 then |next tac|
|00000170| 74 2d 62 69 74 20 69 73 | 20 6f 6b ff 00 1c 03 62 |t-bit is| ok....b|
|00000180| 63 6c 72 ff 20 03 1f 23 | 31 35 2c 64 30 00 00 00 |clr. ..#|15,d0...|
|00000190| 3b 63 6c 65 61 72 20 68 | 69 67 68 65 73 74 20 74 |;clear h|ighest t|
|000001a0| 61 63 74 2d 62 69 74 ff | 00 20 2c 74 61 63 74 6f |act-bit.|. ,tacto|
|000001b0| 6b 3a 6d 6f 76 65 2e 77 | 20 20 64 30 2c 28 61 30 |k:move.w|  d0,(a0|
|000001c0| 29 2b 00 3b 73 74 6f 72 | 65 20 77 6f 72 64 20 69 |)+.;stor|e word i|
|000001d0| 6e 20 62 75 66 66 65 72 | ff 00 29 02 64 62 66 ff |n buffer|..).dbf.|
|000001e0| 20 04 0a 64 37 2c 63 6f | 64 65 6c 6f 6f 70 ff 00 | ..d7,co|deloop..|
|000001f0| 3c 02 52 74 73 ff 00 30 | ff 2d 4f 04 4e 6f 74 65 |<.Rts..0|.-O.Note|
|00000200| 3a ff 00 4a 4a 42 65 66 | 6f 72 65 20 79 6f 75 20 |:..JJBef|ore you |
|00000210| 63 61 6c 6c 20 74 68 69 | 73 20 72 6f 75 74 69 6e |call thi|s routin|
|00000220| 65 20 79 6f 75 20 6d 75 | 73 74 2c 20 6f 66 20 63 |e you mu|st, of c|
|00000230| 6f 75 72 73 65 2c 20 73 | 70 6c 69 74 20 75 70 20 |ourse, s|plit up |
|00000240| 61 6c 6c 20 77 6f 72 64 | 73 20 69 6e 20 74 68 65 |all word|s in the|
|00000250| ff 00 04 ff 20 03 84 62 | 6c 6f 63 6b 20 61 73 20 |.... ..b|lock as |
|00000260| 6d 65 6e 74 69 6f 6e 65 | 64 20 6f 6e 20 70 61 67 |mentione|d on pag|
|00000270| 65 20 33 2e 20 4e 6f 77 | 20 49 27 6c 6c 20 73 68 |e 3. Now| I'll sh|
|00000280| 6f 77 20 79 6f 75 20 61 | 20 72 6f 75 74 69 6e 65 |ow you a| routine|
|00000290| 20 77 68 69 63 68 20 63 | 61 6c 63 75 6c 61 74 65 | which c|alculate|
|000002a0| 73 00 00 74 68 65 20 63 | 68 65 63 6b 73 75 6d 20 |s..the c|hecksum |
|000002b0| 66 6f 72 20 74 68 65 20 | 62 6c 6f 63 6b 2d 68 65 |for the |block-he|
|000002c0| 61 64 65 72 20 61 6e 64 | 20 66 6f 72 20 74 68 65 |ader and| for the|
|000002d0| 20 64 61 74 61 2d 62 6c | 6f 63 6b 2e ff 00 78 ff | data-bl|ock...x.|
|000002e0| 00 07 0e 2a 20 43 41 4c | 43 20 43 48 45 43 4b 53 |...* CAL|C CHECKS|
|000002f0| 20 2a ff 00 26 ff 20 17 | 02 6c 65 61 ff 20 04 07 | *..&. .|.lea. ..|
|00000300| 38 28 61 30 29 2c 61 31 | ff 20 04 12 3b 73 6b 69 |8(a0),a1|. ..;ski|
|00000310| 70 20 73 79 6e 63 73 27 | 6e 27 7a 65 72 6f 73 ff |p syncs'|n'zeros.|
|00000320| 20 0f ff 00 17 0c 6d 6f | 76 65 71 20 20 20 23 30 | .....mo|veq   #0|
|00000330| 2c 64 30 ff 00 06 0f 20 | 3b 63 6c 65 61 72 20 63 |,d0.... |;clear c|
|00000340| 68 65 63 6b 73 75 6d ff | 00 2b 0f 6d 6f 76 65 2e |hecksum.|.+.move.|
|00000350| 77 20 20 23 31 30 2d 31 | 2c 64 37 ff 00 03 1e 20 |w  #10-1|,d7.... |
|00000360| 3b 63 68 65 63 6b 73 75 | 6d 20 6f 66 20 31 30 20 |;checksu|m of 10 |
|00000370| 6c 6f 6e 67 73 2f 34 30 | 20 62 79 74 65 73 ff 00 |longs/40| bytes..|
|00000380| 11 0a 20 00 00 00 68 65 | 61 64 65 72 3a ff 00 4f |.. ...he|ader:..O|
|00000390| 0f 6d 6f 76 65 2e 6c 20 | 20 28 61 31 29 2b 2c 64 |.move.l | (a1)+,d|
|000003a0| 32 ff 00 03 0b 20 3b 66 | 65 74 63 68 20 6c 6f 6e |2.... ;f|etch lon|
|000003b0| 67 ff 00 2f 0c 65 6f 72 | 2e 6c 20 20 20 64 32 2c |g../.eor|.l   d2,|
|000003c0| 64 30 ff 00 06 09 20 3b | 63 61 6c 63 20 73 75 6d |d0.... ;|calc sum|
|000003d0| ff 00 31 02 64 62 66 ff | 20 04 08 64 37 2c 68 65 |..1.dbf.| ..d7,he|
|000003e0| 61 64 65 72 ff 00 3e 09 | 61 6e 64 69 2e 6c 20 20 |ader..>.|andi.l  |
|000003f0| 23 24 ff 35 07 02 2c 64 | 30 ff 00 3a 0c 6d 6f 76 |#$.5..,d|0..:.mov|
|00000400| 65 2e 6c 20 20 64 30 2c | 64 31 ff 00 49 00 2e ff |e.l  d0,|d1..I...|
|00000410| 00 4e 00 2e ff 00 20 0e | 20 20 20 00 00 00 66 6c |.N.... .|   ...fl|
|00000420| 69 70 20 70 61 67 65 ff | 00 1a ff 0e 22 ff 00 2d |ip page.|...."..-|
|00000430| ff 0e 1d ff 00 31 ff 0e | 0c 02 00 00 00 ff 0e 0e |.....1..|........|
|00000440| ff 00 30 ff 0e 25 ff 00 | 29 ff 0e 0c 01 00 00 ff |..0..%..|).......|
|00000450| 0e 0e ff 00 31 ff 0e 0e | 00 00 ff 0e 17 ff 00 27 |....1...|.......'|
|00000460| ff 0e 2d ff 00 21 ff 0e | 0d 02 00 00 00 ff 0e 21 |..-..!..|.......!|
|00000470| ff 00 1c ff 0e 0d 02 00 | 00 00 ff 0e 16 ff 00 20 |........|....... |
|00000480| ff 0e 16 00 00 ff 0e 14 | ff 00 29 ff 0e 12 ff 00 |........|..).....|
|00000490| 3c 02 0e 0e 0e ff 00 30 | ff 0e 54 ff 00 4a ff 0e |<......0|..T..J..|
|000004a0| 4a ff 00 04 ff 0e 4d 01 | 00 00 ff 0e 38 80 00 00 |J.....M.|....8...|
|000004b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000500| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000510| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000520| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 ff |........|........|
|00000530| 0e 0e ff 00 26 ff 0e 2b | 00 09 ff 0e 22 ff 00 17 |....&..+|...."...|
|00000540| ff 0e 0c ff 00 06 00 09 | ff 0e 0e ff 00 2b ff 0e |........|.....+..|
|00000550| 0f ff 00 03 00 09 ff 0e | 1d ff 00 11 03 0e 00 00 |........|........|
|00000560| 00 ff 0e 06 ff 00 4f ff | 0e 0f ff 00 03 00 09 ff |......O.|........|
|00000570| 0e 0a ff 00 2f ff 0e 0c | ff 00 06 00 09 ff 0e 08 |..../...|........|
|00000580| ff 00 31 ff 0e 10 ff 00 | 3e ff 09 14 ff 00 3a ff |..1.....|>.....:.|
|00000590| 0e 0c ff 00 49 00 0e ff | 00 4e 00 0e ff 00 20 05 |....I...|.N.... .|
|000005a0| 0e 0e 0e 00 00 00 ff 0e | 08                      |........|.       |
+--------+-------------------------+-------------------------+--------+--------+