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MacOS 8.1

Win98

DOS

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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 2a 2a 2a 2a 2a 2a 2a | 2a 44 49 52 00 00 01 00 |.*******|*DIR....|
|00000010| 30 31 2f 32 34 2f 38 35 | 30 30 3a 34 32 3a 34 36 |01/24/85|00:42:46|
|00000020| 00 44 55 4d 50 31 30 30 | 20 44 4f 43 01 00 0a 00 |.DUMP100| DOC....|
|00000030| 31 30 2f 32 33 2f 38 34 | 30 38 3a 32 34 3a 32 34 |10/23/84|08:24:24|
|00000040| 00 44 55 4d 50 31 30 30 | 20 43 4f 4d 0b 00 02 00 |.DUMP100| COM....|
|00000050| 31 30 2f 32 33 2f 38 34 | 30 38 3a 32 34 3a 32 30 |10/23/84|08:24:20|
|00000060| ff 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000080| 44 55 4d 50 31 30 30 2e | 43 4f 4d 20 28 77 68 69 |DUMP100.|COM (whi|
|00000090| 63 68 20 49 20 63 61 6c | 6c 20 51 2e 43 4f 4d 29 |ch I cal|l Q.COM)|
|000000a0| 20 69 73 20 61 20 73 69 | 6d 70 6c 65 20 70 72 6f | is a si|mple pro|
|000000b0| 67 72 61 6d 20 74 6f 20 | 64 75 6d 70 20 74 68 65 |gram to |dump the|
|000000c0| 20 66 69 72 73 74 20 31 | 30 30 0d 0a 62 79 74 65 | first 1|00..byte|
|000000d0| 73 20 6f 66 20 6d 65 6d | 6f 72 79 20 6f 6e 20 61 |s of mem|ory on a|
|000000e0| 20 50 43 2e 20 20 49 74 | 20 61 6c 73 6f 20 73 68 | PC.  It| also sh|
|000000f0| 6f 77 73 20 74 68 65 20 | 63 6f 6e 74 65 6e 74 73 |ows the |contents|
|00000100| 20 6f 66 20 74 68 65 20 | 72 65 67 69 73 74 65 72 | of the |register|
|00000110| 73 2e 0d 0a 0d 0a 54 68 | 65 20 70 72 6f 67 72 61 |s.....Th|e progra|
|00000120| 6d 20 69 73 20 75 73 65 | 66 75 6c 20 74 6f 20 73 |m is use|ful to s|
|00000130| 65 65 20 68 6f 77 20 50 | 43 2d 44 4f 53 20 66 6f |ee how P|C-DOS fo|
|00000140| 72 6d 61 74 73 20 66 69 | 6c 65 6e 61 6d 65 73 2c |rmats fi|lenames,|
|00000150| 20 6f 72 20 6d 6f 72 65 | 20 67 65 6e 65 72 61 6c | or more| general|
|00000160| 6c 79 2c 0d 0a 74 68 65 | 20 63 6f 6d 6d 61 6e 64 |ly,..the| command|
|00000170| 20 6c 69 6e 65 2c 20 69 | 6e 74 6f 20 74 68 65 20 | line, i|nto the |
|00000180| 64 65 66 61 75 6c 74 20 | 46 69 6c 65 20 43 6f 6e |default |File Con|
|00000190| 74 72 6f 6c 20 42 6c 6f | 63 6b 73 20 61 74 20 35 |trol Blo|cks at 5|
|000001a0| 63 68 20 61 6e 64 20 36 | 63 68 2c 20 61 6e 64 0d |ch and 6|ch, and.|
|000001b0| 0a 69 6e 74 6f 20 74 68 | 65 20 74 65 6d 70 6f 72 |.into th|e tempor|
|000001c0| 61 72 79 20 62 75 66 66 | 65 72 20 61 74 20 38 30 |ary buff|er at 80|
|000001d0| 68 2e 20 20 54 68 75 73 | 20 69 66 20 79 6f 75 20 |h.  Thus| if you |
|000001e0| 77 65 72 65 20 77 61 6e | 74 69 6e 67 20 74 6f 20 |were wan|ting to |
|000001f0| 77 72 69 74 65 20 61 6e | 0d 0a 61 73 73 65 6d 62 |write an|..assemb|
|00000200| 6c 65 72 20 70 72 6f 67 | 72 61 6d 20 74 6f 20 64 |ler prog|ram to d|
|00000210| 6f 20 73 6f 6d 65 20 66 | 75 6e 63 74 69 6f 6e 2c |o some f|unction,|
|00000220| 20 61 6e 64 20 77 61 6e | 74 65 64 20 74 6f 20 6b | and wan|ted to k|
|00000230| 6e 6f 77 20 68 6f 77 20 | 74 68 65 20 70 6f 73 73 |now how |the poss|
|00000240| 69 62 6c 65 0d 0a 6f 70 | 65 72 61 6e 64 73 20 6c |ible..op|erands l|
|00000250| 6f 6f 6b 65 64 20 61 74 | 20 38 30 68 2c 20 61 6e |ooked at| 80h, an|
|00000260| 64 20 68 6f 77 20 69 6e | 76 61 6c 69 64 20 6f 70 |d how in|valid op|
|00000270| 65 72 61 6e 64 73 20 6c | 6f 6f 6b 65 64 20 28 6c |erands l|ooked (l|
|00000280| 69 6b 65 20 6b 65 79 69 | 6e 67 20 69 6e 20 74 68 |ike keyi|ng in th|
|00000290| 65 0d 0a 70 72 6f 67 72 | 61 6d 20 6e 61 6d 65 20 |e..progr|am name |
|000002a0| 77 69 74 68 20 6e 6f 20 | 6f 70 65 72 61 6e 64 73 |with no |operands|
|000002b0| 2c 20 6f 72 20 6b 65 79 | 69 6e 67 20 69 74 20 69 |, or key|ing it i|
|000002c0| 6e 20 77 69 74 68 20 61 | 20 2f 20 74 68 65 6e 20 |n with a| / then |
|000002d0| 74 68 65 20 6f 70 65 72 | 61 6e 64 73 20 28 6e 6f |the oper|ands (no|
|000002e0| 0d 0a 73 70 61 63 65 29 | 2c 20 79 6f 75 20 63 61 |..space)|, you ca|
|000002f0| 6e 20 73 65 65 20 6a 75 | 73 74 20 68 6f 77 20 69 |n see ju|st how i|
|00000300| 74 20 6c 6f 6f 6b 73 2e | 0d 0a 0d 0a 54 68 65 20 |t looks.|....The |
|00000310| 72 65 67 69 73 74 65 72 | 20 64 75 6d 70 20 69 73 |register| dump is|
|00000320| 20 61 6c 73 6f 20 75 73 | 65 66 75 6c 20 62 65 63 | also us|eful bec|
|00000330| 61 75 73 65 20 69 74 20 | 73 68 6f 77 73 20 68 6f |ause it |shows ho|
|00000340| 77 20 6d 75 63 68 20 6d | 65 6d 6f 72 79 20 79 6f |w much m|emory yo|
|00000350| 75 20 68 61 76 65 0d 0a | 74 69 65 64 20 75 70 20 |u have..|tied up |
|00000360| 69 6e 20 79 6f 75 72 20 | 73 79 73 74 65 6d 20 66 |in your |system f|
|00000370| 6f 72 20 64 65 76 69 63 | 65 20 64 72 69 76 65 72 |or devic|e driver|
|00000380| 73 2c 20 65 74 63 2e 20 | 20 46 6f 72 20 65 78 61 |s, etc. | For exa|
|00000390| 6d 70 6c 65 2c 20 69 66 | 20 79 6f 75 20 77 61 6e |mple, if| you wan|
|000003a0| 74 20 74 6f 0d 0a 6b 6e | 6f 77 20 68 6f 77 20 6d |t to..kn|ow how m|
|000003b0| 75 63 68 20 72 6f 6f 6d | 20 61 20 6e 65 77 20 64 |uch room| a new d|
|000003c0| 65 76 69 63 65 20 64 72 | 69 76 65 72 20 74 61 6b |evice dr|iver tak|
|000003d0| 73 2c 20 74 79 70 65 20 | 69 6e 20 51 20 28 6f 72 |s, type |in Q (or|
|000003e0| 20 64 75 6d 70 31 30 30 | 20 69 66 20 79 6f 75 0d | dump100| if you.|
|000003f0| 0a 68 61 76 65 6e 27 74 | 20 72 65 6e 61 6d 65 64 |.haven't| renamed|
|00000400| 20 69 74 29 2c 20 6e 6f | 74 65 20 74 68 65 20 76 | it), no|te the v|
|00000410| 61 6c 75 65 20 6f 66 20 | 43 53 2e 20 20 54 68 65 |alue of |CS.  The|
|00000420| 6e 20 6c 6f 61 64 20 74 | 68 65 20 64 65 76 69 63 |n load t|he devic|
|00000430| 65 20 64 72 69 76 65 72 | 2c 20 28 69 2e 65 2e 0d |e driver|, (i.e..|
|00000440| 0a 22 64 6f 73 65 64 69 | 74 22 20 66 6f 72 20 65 |."dosedi|t" for e|
|00000450| 78 61 6d 70 6c 65 29 2c | 20 74 68 65 6e 20 74 79 |xample),| then ty|
|00000460| 70 65 20 51 20 61 67 61 | 69 6e 20 2d 20 74 68 65 |pe Q aga|in - the|
|00000470| 20 64 69 66 66 65 72 65 | 6e 63 65 20 62 65 74 77 | differe|nce betw|
|00000480| 65 65 6e 20 74 68 65 20 | 6e 65 77 20 43 53 0d 0a |een the |new CS..|
|00000490| 61 6e 64 20 74 68 65 20 | 6f 6c 64 20 6f 6e 65 20 |and the |old one |
|000004a0| 69 73 20 74 68 65 20 6e | 75 6d 62 65 72 20 6f 66 |is the n|umber of|
|000004b0| 20 70 61 72 61 67 72 61 | 70 68 73 20 28 31 36 2d | paragra|phs (16-|
|000004c0| 62 79 74 65 20 63 68 75 | 6e 6b 73 29 20 74 68 65 |byte chu|nks) the|
|000004d0| 20 64 65 76 69 63 65 20 | 64 72 69 76 65 72 0d 0a | device |driver..|
|000004e0| 74 6f 6f 6b 20 75 70 2e | 0d 0a 0d 0a 30 39 2f 32 |took up.|....09/2|
|000004f0| 32 2f 38 34 20 62 79 20 | 57 61 72 64 20 43 68 72 |2/84 by |Ward Chr|
|00000500| 69 73 74 65 6e 73 65 6e | 0d 0a 1a 1a 1a 1a 1a 1a |istensen|........|
|00000510| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000520| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000530| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000540| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000550| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000560| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000570| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000580| 8c c8 ba ae 01 e8 67 00 | 8c d8 ba b2 01 e8 5f 00 |......g.|......_.|
|00000590| 8c c0 ba b8 01 e8 57 00 | 8c d0 ba be 01 e8 4f 00 |......W.|......O.|
|000005a0| 8b c4 ba c4 01 e8 47 00 | be 00 00 e8 77 00 8b c6 |......G.|....w...|
|000005b0| e8 42 00 e8 49 00 b9 10 | 00 56 ac e8 4b 00 8a c1 |.B..I...|.V..K...|
|000005c0| fe c8 24 03 75 03 e8 36 | 00 e2 ef e8 31 00 e8 33 |..$.u..6|....1..3|
|000005d0| 00 5e b9 10 00 ac 3c 20 | 72 04 3c 7f 72 02 b0 2e |.^....< |r.<.r...|
|000005e0| 8a d0 e8 3b 00 e2 ee 8b | c6 80 fc 00 74 bd c3 50 |...;....|....t..P|
|000005f0| b4 09 cd 21 58 50 8a c4 | e8 0e 00 58 e8 0a 00 b2 |...!XP..|...X....|
|00000600| 20 eb 1d 90 b2 2a eb 18 | 90 50 d0 e8 d0 e8 d0 e8 | ....*..|.P......|
|00000610| d0 e8 e8 01 00 58 24 0f | 04 90 27 14 40 27 8a d0 |.....X$.|..'.@'..|
|00000620| b4 02 cd 21 c3 b2 0d e8 | f6 ff b2 0a eb f2 63 73 |...!....|......cs|
|00000630| 3d 24 2c 20 64 73 3d 24 | 2c 20 65 73 3d 24 2c 20 |=$, ds=$|, es=$, |
|00000640| 73 73 3d 24 2c 20 73 70 | 3d 24 1a 1a 1a 1a 1a 1a |ss=$, sp|=$......|
|00000650| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000660| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000670| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
+--------+-------------------------+-------------------------+--------+--------+