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MacOS 8.1

Win98

DOS

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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 24 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |$.......|........|
|00000010| 23 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |#.......|........|
|00000020| 57 00 00 00 00 00 80 02 | 5d 01 09 00 08 00 10 00 |W.......|].......|
|00000030| 24 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |$.......|........|
|00000040| 23 00 01 00 ff ff ff ff | ff ff ff ff ff ff ff ff |#.......|........|
|00000050| 57 00 10 00 b0 00 88 01 | 60 00 07 00 08 00 01 00 |W.......|`.......|
|00000060| 24 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |$.......|........|
|00000070| 23 00 02 00 ff ff ff ff | ff ff ff ff ff ff ff ff |#.......|........|
|00000080| 57 00 20 00 30 00 c0 00 | a0 00 0f 00 08 00 01 00 |W. .0...|........|
|00000090| 46 00 c8 00 dc 00 18 00 | 08 00 07 00 ff ff ff ff |F.......|........|
|000000a0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000000b0| 46 00 b4 00 d7 00 40 00 | 12 00 07 00 ff ff ff ff |F.....@.|........|
|000000c0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000000d0| 46 00 a0 00 d2 00 68 00 | 1c 00 07 00 ff ff ff ff |F.....h.|........|
|000000e0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000000f0| 46 00 8c 00 cd 00 90 00 | 26 00 07 00 ff ff ff ff |F.......|&.......|
|00000100| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000110| 46 00 78 00 c8 00 b8 00 | 30 00 07 00 ff ff ff ff |F.x.....|0.......|
|00000120| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000130| 46 00 64 00 c3 00 e0 00 | 3a 00 07 00 ff ff ff ff |F.d.....|:.......|
|00000140| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000150| 46 00 50 00 be 00 08 01 | 44 00 07 00 ff ff ff ff |F.P.....|D.......|
|00000160| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000170| 46 00 3c 00 b9 00 30 01 | 4e 00 07 00 ff ff ff ff |F.<...0.|N.......|
|00000180| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000190| 46 00 28 00 b4 00 58 01 | 58 00 07 00 ff ff ff ff |F.(...X.|X.......|
|000001a0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000001b0| 46 00 10 00 b0 00 88 01 | 60 00 07 00 ff ff ff ff |F.......|`.......|
|000001c0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000001d0| 46 00 98 01 b8 00 08 00 | 60 00 00 00 ff ff ff ff |F.......|`.......|
|000001e0| 46 00 18 00 10 01 88 01 | 08 00 00 00 ff ff ff ff |F.......|........|
|000001f0| 44 00 e8 03 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000200| 24 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |$.......|........|
|00000210| 23 00 01 00 ff ff ff ff | ff ff ff ff ff ff ff ff |#.......|........|
|00000220| 54 00 02 00 0e 00 10 00 | b0 00 32 00 08 00 0a 00 |T.......|..2.....|
|00000230| 5c 2b 0d 0a 20 46 6c 61 | 67 73 20 61 72 65 20 6f |\+.. Fla|gs are o|
|00000240| 6e 65 2d 62 69 74 20 69 | 6e 64 69 63 61 74 6f 72 |ne-bit i|ndicator|
|00000250| 73 20 63 6f 6d 62 69 6e | 65 64 20 0d 0a 20 69 6e |s combin|ed .. in|
|00000260| 74 6f 20 74 68 65 20 73 | 70 65 63 69 61 6c 20 66 |to the s|pecial f|
|00000270| 6c 61 67 20 72 65 67 69 | 73 74 65 72 73 2e 0d 0a |lag regi|sters...|
|00000280| 20 45 61 63 68 20 66 6c | 61 67 20 63 61 6e 20 68 | Each fl|ag can h|
|00000290| 61 76 65 20 74 77 6f 20 | 73 74 61 74 65 73 20 2d |ave two |states -|
|000002a0| 20 73 65 74 20 6f 72 0d | 0a 20 63 6c 65 61 72 65 | set or.|. cleare|
|000002b0| 64 20 77 68 69 63 68 20 | 63 6f 72 72 65 73 70 6f |d which |correspo|
|000002c0| 6e 64 73 20 74 6f 20 74 | 68 65 20 76 61 6c 75 65 |nds to t|he value|
|000002d0| 73 0d 0a 20 31 20 6f 72 | 20 30 2c 20 72 65 73 70 |s.. 1 or| 0, resp|
|000002e0| 65 63 74 69 76 65 6c 79 | 2e 20 54 68 65 20 63 6f |ectively|. The co|
|000002f0| 6e 64 69 74 69 6f 6e 61 | 6c 0d 0a 20 6a 75 6d 70 |nditiona|l.. jump|
|00000300| 20 69 6e 73 74 72 75 63 | 74 69 6f 6e 73 20 73 75 | instruc|tions su|
|00000310| 63 68 20 61 73 20 4a 43 | 20 61 6e 64 20 4a 4e 5a |ch as JC| and JNZ|
|00000320| 0d 0a 20 63 61 6e 20 62 | 65 20 75 73 65 64 20 66 |.. can b|e used f|
|00000330| 6f 72 20 70 61 73 73 69 | 6e 67 20 63 6f 6e 74 72 |or passi|ng contr|
|00000340| 6f 6c 20 64 65 70 65 6e | 64 69 6e 67 0d 0a 20 6f |ol depen|ding.. o|
|00000350| 6e 20 74 68 65 20 76 61 | 6c 75 65 20 6f 66 20 61 |n the va|lue of a|
|00000360| 20 66 6c 61 67 2e 20 54 | 68 65 20 6d 6f 73 74 20 | flag. T|he most |
|00000370| 63 6f 6d 6d 6f 6e 6c 79 | 0d 0a 20 75 73 65 64 20 |commonly|.. used |
|00000380| 66 6c 61 67 73 20 61 72 | 65 3a 00 ff ff ff ff ff |flags ar|e:......|
|00000390| 44 00 d0 07 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000003a0| 46 00 10 00 b0 00 88 01 | 60 00 07 00 ff ff ff ff |F.......|`.......|
|000003b0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000003c0| 46 00 29 01 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.).....|........|
|000003d0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000003e0| 46 00 29 01 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.).....|........|
|000003f0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000400| 46 00 29 01 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.).....|........|
|00000410| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000420| 46 00 29 01 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.).....|........|
|00000430| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000440| 24 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |$.......|........|
|00000450| 23 00 01 00 ff ff ff ff | ff ff ff ff ff ff ff ff |#.......|........|
|00000460| 54 00 02 00 0e 00 10 00 | b0 00 32 00 08 00 0a 00 |T.......|..2.....|
|00000470| 5c 2b 0d 0a 20 54 68 65 | 20 5a 65 72 6f 20 46 6c |\+.. The| Zero Fl|
|00000480| 61 67 20 69 73 20 73 65 | 74 20 77 68 65 6e 20 74 |ag is se|t when t|
|00000490| 68 65 20 72 65 73 75 6c | 74 20 6f 66 20 61 6e 0d |he resul|t of an.|
|000004a0| 0a 20 61 72 69 74 68 6d | 65 74 69 63 20 6f 72 20 |. arithm|etic or |
|000004b0| 6c 6f 67 69 63 61 6c 20 | 6f 70 65 72 61 74 69 6f |logical |operatio|
|000004c0| 6e 20 69 73 20 65 71 75 | 61 6c 20 74 6f 20 0d 0a |n is equ|al to ..|
|000004d0| 20 7a 65 72 6f 2e 20 54 | 68 69 73 20 69 73 20 74 | zero. T|his is t|
|000004e0| 68 65 20 63 61 73 65 20 | 77 68 65 6e 20 62 6f 74 |he case |when bot|
|000004f0| 68 20 6f 70 65 72 61 6e | 64 73 20 6f 66 0d 0a 20 |h operan|ds of.. |
|00000500| 61 6e 20 69 6e 73 74 72 | 75 63 74 69 6f 6e 20 61 |an instr|uction a|
|00000510| 72 65 20 65 71 75 61 6c | 20 73 6f 20 74 68 69 73 |re equal| so this|
|00000520| 20 66 6c 61 67 20 69 73 | 20 0d 0a 20 6f 66 74 65 | flag is| .. ofte|
|00000530| 6e 20 75 73 65 64 20 77 | 68 69 6c 65 20 74 68 65 |n used w|hile the|
|00000540| 20 64 61 74 61 20 63 6f | 6d 70 61 72 69 73 6f 6e | data co|mparison|
|00000550| 20 69 73 0d 0a 20 70 65 | 72 66 6f 72 6d 65 64 2e | is.. pe|rformed.|
|00000560| 00 00 00 00 59 00 8c 00 | 46 00 21 00 18 00 ff ff |....Y...|F.!.....|
|00000570| 44 00 d0 07 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000580| 46 00 10 00 b0 00 88 01 | 60 00 07 00 ff ff ff ff |F.......|`.......|
|00000590| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000005a0| 46 00 ba 01 81 00 14 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|000005b0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000005c0| 46 00 ba 01 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|000005d0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000005e0| 46 00 ba 01 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|000005f0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000600| 46 00 ba 01 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|00000610| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000620| 24 00 00 00 ff ff ff ff | ff ff ff ff ff ff ff ff |$.......|........|
|00000630| 23 00 01 00 ff ff ff ff | ff ff ff ff ff ff ff ff |#.......|........|
|00000640| 54 00 02 00 0e 00 10 00 | b0 00 32 00 08 00 0a 00 |T.......|..2.....|
|00000650| 5c 2b 0d 0a 20 54 68 65 | 20 43 61 72 72 79 20 46 |\+.. The| Carry F|
|00000660| 6c 61 67 20 69 6e 64 69 | 63 61 74 65 73 20 74 68 |lag indi|cates th|
|00000670| 65 20 63 61 72 72 79 20 | 66 72 6f 6d 20 6f 72 20 |e carry |from or |
|00000680| 74 68 65 0d 0a 20 62 6f | 72 72 6f 77 20 74 6f 20 |the.. bo|rrow to |
|00000690| 74 68 65 20 68 69 67 68 | 65 73 74 20 62 69 74 20 |the high|est bit |
|000006a0| 6f 66 20 74 68 65 20 6f | 70 65 72 61 6e 64 20 75 |of the o|perand u|
|000006b0| 73 65 64 20 0d 0a 20 69 | 6e 20 61 6e 20 61 72 69 |sed .. i|n an ari|
|000006c0| 74 68 6d 65 74 69 63 20 | 69 6e 73 74 72 75 63 74 |thmetic |instruct|
|000006d0| 69 6f 6e 2e 20 54 68 69 | 73 20 66 6c 61 67 20 63 |ion. Thi|s flag c|
|000006e0| 61 6e 20 0d 0a 20 61 6c | 73 6f 20 62 65 20 73 65 |an .. al|so be se|
|000006f0| 74 20 6f 72 20 63 6c 65 | 61 72 65 64 20 64 69 72 |t or cle|ared dir|
|00000700| 65 63 74 6c 79 20 62 79 | 20 75 73 69 6e 67 20 74 |ectly by| using t|
|00000710| 68 65 20 0d 0a 20 53 54 | 43 20 61 6e 64 20 43 4c |he .. ST|C and CL|
|00000720| 43 20 69 6e 73 74 72 75 | 63 74 69 6f 6e 73 2c 20 |C instru|ctions, |
|00000730| 72 65 73 70 65 63 74 69 | 76 65 6c 79 2e 0d 0a 20 |respecti|vely... |
|00000740| 54 68 69 73 20 66 6c 61 | 67 20 69 73 20 6f 66 74 |This fla|g is oft|
|00000750| 65 6e 20 75 73 65 64 20 | 74 6f 20 69 6e 64 69 63 |en used |to indic|
|00000760| 61 74 65 20 74 68 65 20 | 72 65 73 75 6c 74 0d 0a |ate the |result..|
|00000770| 20 6f 66 20 42 49 4f 53 | 20 6f 72 20 44 4f 53 20 | of BIOS| or DOS |
|00000780| 73 65 72 76 69 63 65 20 | 63 61 6c 6c 73 2e 00 ff |service |calls...|
|00000790| 44 00 c4 09 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000007a0| 46 00 10 00 b0 00 88 01 | 60 00 07 00 ff ff ff ff |F.......|`.......|
|000007b0| 44 00 96 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000007c0| 46 00 10 00 b0 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|000007d0| 46 00 10 00 0e 01 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|000007e0| 46 00 10 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|000007f0| 46 00 78 01 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.x...(.|h.......|
|00000800| 44 00 fa 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000810| 46 00 10 00 ba 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000820| 46 00 10 00 04 01 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000830| 46 00 38 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.8...(.|h.......|
|00000840| 46 00 50 01 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.P...(.|h.......|
|00000850| 44 00 fa 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000860| 46 00 10 00 c4 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000870| 46 00 10 00 fa 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000880| 46 00 60 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.`...(.|h.......|
|00000890| 46 00 28 01 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.(...(.|h.......|
|000008a0| 44 00 fa 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000008b0| 46 00 10 00 ce 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|000008c0| 46 00 10 00 f0 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|000008d0| 46 00 88 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|000008e0| 46 00 00 01 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|000008f0| 44 00 fa 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000900| 46 00 10 00 d8 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000910| 46 00 10 00 e6 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000920| 46 00 b0 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|00000930| 46 00 d8 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|00000940| 44 00 fa 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000950| 46 00 10 00 e2 00 90 01 | 0a 00 09 00 ff ff ff ff |F.......|........|
|00000960| 46 00 10 00 dc 00 90 01 | 01 00 09 00 ff ff ff ff |F.......|........|
|00000970| 46 00 d8 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|00000980| 46 00 b0 00 b0 00 28 00 | 68 00 09 00 ff ff ff ff |F.....(.|h.......|
|00000990| 44 00 fa 00 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000009a0| 45 00 03 00 ff ff ff ff | ff ff ff ff ff ff ff ff |E.......|........|
|000009b0| 46 00 c9 00 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|000009c0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000009d0| 46 00 c9 00 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|000009e0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|000009f0| 46 00 c9 00 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|00000a00| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000a10| 46 00 c9 00 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|00000a20| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000a30| 46 00 e1 00 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|00000a40| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000a50| 46 00 e1 00 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|00000a60| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000a70| 46 00 e1 00 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|00000a80| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000a90| 46 00 e1 00 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|00000aa0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000ab0| 46 00 f9 00 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|00000ac0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000ad0| 46 00 f9 00 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|00000ae0| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000af0| 46 00 f9 00 81 00 16 00 | 1e 00 0a 00 ff ff ff ff |F.......|........|
|00000b00| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
|00000b10| 46 00 f9 00 81 00 16 00 | 1e 00 02 00 ff ff ff ff |F.......|........|
|00000b20| 44 00 f4 01 ff ff ff ff | ff ff ff ff ff ff ff ff |D.......|........|
+--------+-------------------------+-------------------------+--------+--------+