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MacOS 8.1

Win98

DOS

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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 20 20 20 20 20 20 20 | 20 20 20 20 00 00 04 00 |.       |    ....|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000020| 00 48 50 20 20 20 20 20 | 20 43 4f 4d 04 00 0c 00 |.HP     | COM....|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 48 50 20 20 20 20 20 | 20 44 4f 43 10 00 2f 00 |.HP     | DOC../.|
|00000050| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000070| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000090| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000a0| ff 20 20 20 20 20 20 20 | 20 20 20 20 00 00 00 00 |.       |    ....|
|000000b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000000d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000e0| ff 20 20 20 20 20 20 20 | 20 20 20 20 00 00 00 00 |.       |    ....|
|000000f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000110| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000004c0| c2 c8 03 e5 cd ed 03 e1 | 22 5d 06 af 32 7e 06 c9 |........|"]..2~..|
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|00000500| 3e cd 2d 06 3e 20 cd 2d | 06 c9 4d 44 21 00 00 3e |>.-.> .-|..MD!..>|
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|00000520| eb f1 3d c2 11 04 b2 f0 | 09 c9 7b b2 ca b0 04 4d |..=.....|..{....M|
|00000530| 44 21 00 00 3e 10 b7 32 | 7f 06 cb 11 cb 10 cb 15 |D!..>..2|........|
|00000540| cb 14 22 81 06 ed 52 3f | da 4e 04 2a 81 06 3a 7f |.."...R?|.N.*..:.|
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|00000560| b7 ca 6f 04 fe 20 c2 6f | 04 36 30 23 c3 5f 04 e1 |..o.. .o|.60#._..|
|00000570| c3 73 04 06 04 cd b2 04 | cd 86 04 d8 57 23 cd 86 |.s......|....W#..|
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|00000590| cd 97 04 d8 83 b7 c9 7e | e6 7f fe 41 da a3 04 e6 |.......~|...A....|
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|000005c0| 03 cd b2 04 11 00 00 01 | 10 27 cd e8 04 01 e8 03 |........|.'......|
|000005d0| cd e8 04 01 64 00 cd e8 | 04 01 0a 00 cd e8 04 01 |....d...|........|
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|000007f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000800| 47 45 4e 45 52 41 4c 20 | 44 45 53 43 52 49 50 54 |GENERAL |DESCRIPT|
|00000810| 49 4f 4e 0d 0a 45 4e 54 | 45 52 49 4e 47 20 4e 55 |ION..ENT|ERING NU|
|00000820| 4d 42 45 52 53 20 0d 0a | 54 48 45 20 42 41 43 4b |MBERS ..|THE BACK|
|00000830| 53 50 41 43 45 20 4b 45 | 59 0d 0a 44 4f 49 4e 47 |SPACE KE|Y..DOING|
|00000840| 20 41 52 49 54 48 4d 45 | 54 49 43 0d 0a 53 54 41 | ARITHME|TIC..STA|
|00000850| 43 4b 20 4f 50 45 52 41 | 54 49 4f 4e 53 0d 0a 4d |CK OPERA|TIONS..M|
|00000860| 45 4d 4f 52 59 20 4f 50 | 45 52 41 54 49 4f 4e 53 |EMORY OP|ERATIONS|
|00000870| 0d 0a 54 48 45 20 45 53 | 43 41 50 45 20 4b 45 59 |..THE ES|CAPE KEY|
|00000880| 0d 0a 50 52 41 43 54 49 | 43 45 20 45 58 41 4d 50 |..PRACTI|CE EXAMP|
|00000890| 4c 45 53 0d 0a 0d 0a 3a | 20 20 20 20 20 48 50 2e |LES....:|     HP.|
|000008a0| 43 4f 4d 20 69 73 20 61 | 20 73 69 6d 70 6c 65 20 |COM is a| simple |
|000008b0| 22 63 61 6c 63 75 6c 61 | 74 6f 72 22 20 66 6f 72 |"calcula|tor" for|
|000008c0| 20 70 72 6f 67 72 61 6d | 6d 65 72 73 2e 20 20 49 | program|mers.  I|
|000008d0| 74 20 69 73 20 6d 6f 64 | 65 6c 6c 65 64 0d 0a 61 |t is mod|elled..a|
|000008e0| 66 74 65 72 20 61 20 48 | 65 77 6c 65 74 74 2d 50 |fter a H|ewlett-P|
|000008f0| 61 63 6b 61 72 64 20 77 | 69 74 68 20 52 50 4e 20 |ackard w|ith RPN |
|00000900| 6c 6f 67 69 63 2e 20 20 | 49 74 20 63 61 6e 20 64 |logic.  |It can d|
|00000910| 6f 20 61 64 64 69 74 69 | 6f 6e 2c 20 73 75 62 74 |o additi|on, subt|
|00000920| 72 61 63 74 69 6f 6e 2c | 0d 0a 6d 75 6c 74 69 70 |raction,|..multip|
|00000930| 6c 69 63 61 74 69 6f 6e | 2c 20 65 78 70 6f 6e 65 |lication|, expone|
|00000940| 6e 74 69 61 74 69 6f 6e | 2c 20 71 75 6f 74 69 65 |ntiation|, quotie|
|00000950| 6e 74 2c 20 72 65 6d 61 | 69 6e 64 65 72 2c 20 61 |nt, rema|inder, a|
|00000960| 6e 64 20 62 69 74 77 69 | 73 65 20 6c 6f 67 69 63 |nd bitwi|se logic|
|00000970| 61 6c 0d 0a 6f 70 65 72 | 61 74 69 6f 6e 73 2e 20 |al..oper|ations. |
|00000980| 20 49 74 20 68 61 73 20 | 61 6e 20 38 2d 77 6f 72 | It has |an 8-wor|
|00000990| 64 20 73 74 61 63 6b 20 | 61 6e 64 20 33 20 6d 65 |d stack |and 3 me|
|000009a0| 6d 6f 72 69 65 73 2e 20 | 20 42 65 73 74 20 6f 66 |mories. | Best of|
|000009b0| 20 61 6c 6c 2c 20 69 74 | 20 63 61 6e 0d 0a 64 69 | all, it| can..di|
|000009c0| 73 70 6c 61 79 20 69 6e | 20 61 6e 79 20 6f 66 20 |splay in| any of |
|000009d0| 66 6f 75 72 20 6d 6f 64 | 65 73 3a 20 68 65 78 61 |four mod|es: hexa|
|000009e0| 64 65 63 69 6d 61 6c 2c | 20 64 65 63 69 6d 61 6c |decimal,| decimal|
|000009f0| 2c 20 62 69 6e 61 72 79 | 2c 20 61 6e 64 20 63 68 |, binary|, and ch|
|00000a00| 61 72 61 63 74 65 72 2e | 0d 0a 20 20 20 20 20 48 |aracter.|..     H|
|00000a10| 50 20 68 61 73 20 62 65 | 65 6e 20 6b 65 70 74 20 |P has be|en kept |
|00000a20| 72 65 6c 61 74 69 76 65 | 6c 79 20 73 6d 61 6c 6c |relative|ly small|
|00000a30| 20 61 6e 64 20 73 69 6d | 70 6c 65 2c 20 73 69 6e | and sim|ple, sin|
|00000a40| 63 65 20 49 20 77 61 6e | 74 65 64 20 74 6f 0d 0a |ce I wan|ted to..|
|00000a50| 69 6d 70 6c 65 6d 65 6e | 74 20 61 20 52 41 4d 2d |implemen|t a RAM-|
|00000a60| 72 65 73 69 64 65 6e 74 | 20 76 65 72 73 69 6f 6e |resident| version|
|00000a70| 20 6f 66 20 69 74 20 66 | 6f 72 20 75 73 65 20 75 | of it f|or use u|
|00000a80| 6e 64 65 72 20 43 50 2f | 4d 20 50 6c 75 73 2e 20 |nder CP/|M Plus. |
|00000a90| 20 54 68 69 73 0d 0a 76 | 65 72 73 69 6f 6e 2c 20 | This..v|ersion, |
|00000aa0| 77 68 69 63 68 20 63 61 | 6e 20 62 65 20 75 73 65 |which ca|n be use|
|00000ab0| 64 20 65 76 65 6e 20 66 | 72 6f 6d 20 77 69 74 68 |d even f|rom with|
|00000ac0| 69 6e 20 6f 74 68 65 72 | 20 70 72 6f 67 72 61 6d |in other| program|
|00000ad0| 73 2c 20 69 73 20 6e 6f | 77 0d 0a 61 76 61 69 6c |s, is no|w..avail|
|00000ae0| 61 62 6c 65 20 61 73 20 | 48 50 2b 2e 43 4f 4d 2e |able as |HP+.COM.|
|00000af0| 20 20 53 65 65 20 48 50 | 2b 2e 44 4f 43 20 66 6f |  See HP|+.DOC fo|
|00000b00| 72 20 64 65 74 61 69 6c | 73 2e 0d 0a 20 20 20 20 |r detail|s...    |
|00000b10| 20 41 6c 6c 20 69 6e 74 | 65 72 6e 61 6c 20 73 74 | All int|ernal st|
|00000b20| 6f 72 61 67 65 20 61 6e | 64 20 61 72 69 74 68 6d |orage an|d arithm|
|00000b30| 65 74 69 63 20 69 73 20 | 75 6e 73 69 67 6e 65 64 |etic is |unsigned|
|00000b40| 20 31 36 20 62 69 74 2e | 20 20 54 68 75 73 20 36 | 16 bit.|  Thus 6|
|00000b50| 35 35 33 37 0d 0a 62 65 | 63 6f 6d 65 73 20 30 30 |5537..be|comes 00|
|00000b60| 30 30 31 2c 20 2d 31 20 | 62 65 63 6f 6d 65 73 20 |001, -1 |becomes |
|00000b70| 36 35 35 33 35 2c 20 61 | 6e 64 20 73 6f 20 6f 6e |65535, a|nd so on|
|00000b80| 2e 20 20 4d 75 6c 74 69 | 70 6c 69 63 61 74 69 6f |.  Multi|plicatio|
|00000b90| 6e 20 6f 76 65 72 66 6c | 6f 77 20 61 6e 64 0d 0a |n overfl|ow and..|
|00000ba0| 64 69 76 69 73 69 6f 6e | 20 62 79 20 30 20 67 65 |division| by 0 ge|
|00000bb0| 6e 65 72 61 74 65 20 65 | 72 72 6f 72 73 2c 20 65 |nerate e|rrors, e|
|00000bc0| 78 63 65 70 74 20 74 68 | 61 74 20 69 6e 20 62 69 |xcept th|at in bi|
|00000bd0| 6e 61 72 79 20 61 6e 64 | 20 63 68 61 72 61 63 74 |nary and| charact|
|00000be0| 65 72 20 6d 6f 64 65 73 | 2c 0d 0a 74 68 65 20 64 |er modes|,..the d|
|00000bf0| 69 73 70 6c 61 79 20 73 | 68 6f 77 73 20 6f 6e 6c |isplay s|hows onl|
|00000c00| 79 20 74 68 65 20 6c 6f | 77 65 73 74 20 38 20 62 |y the lo|west 8 b|
|00000c10| 69 74 73 20 6f 66 20 31 | 36 2c 20 73 6f 20 38 2d |its of 1|6, so 8-|
|00000c20| 62 69 74 20 6f 76 65 72 | 66 6c 6f 77 20 64 6f 65 |bit over|flow doe|
|00000c30| 73 0d 0a 4e 4f 54 20 75 | 73 75 61 6c 6c 79 20 63 |s..NOT u|sually c|
|00000c40| 61 75 73 65 20 61 6e 20 | 65 72 72 6f 72 2e 0d 0a |ause an |error...|
|00000c50| 20 20 20 20 20 57 68 65 | 6e 20 79 6f 75 20 72 75 |     Whe|n you ru|
|00000c60| 6e 20 48 50 2c 20 69 74 | 20 77 69 6c 6c 20 64 69 |n HP, it| will di|
|00000c70| 73 70 6c 61 79 20 69 74 | 73 20 73 69 6e 67 6c 65 |splay it|s single|
|00000c80| 20 6f 70 65 72 61 74 69 | 6e 67 20 6c 69 6e 65 3a | operati|ng line:|
|00000c90| 0d 0a 20 20 20 20 20 20 | 20 20 20 41 3e 68 70 0d |..      |   A>hp.|
|00000ca0| 0a 20 20 20 20 20 20 20 | 20 20 48 50 20 31 2e 30 |.       |  HP 1.0|
|00000cb0| 20 2d 20 45 2e 4d 65 79 | 65 72 20 39 2f 38 34 20 | - E.Mey|er 9/84 |
|00000cc0| 20 20 20 20 20 20 20 48 | 3e 20 20 20 20 30 30 30 |       H|>    000|
|00000cd0| 30 0d 0a 54 68 65 20 22 | 48 22 20 69 6e 64 69 63 |0..The "|H" indic|
|00000ce0| 61 74 65 73 20 48 65 78 | 20 64 69 73 70 6c 61 79 |ates Hex| display|
|00000cf0| 20 6d 6f 64 65 2c 20 61 | 6e 64 20 74 68 65 20 22 | mode, a|nd the "|
|00000d00| 30 30 30 30 22 20 69 73 | 20 74 68 65 20 63 61 6c |0000" is| the cal|
|00000d10| 63 75 6c 61 74 6f 72 0d | 0a 64 69 73 70 6c 61 79 |culator.|.display|
|00000d20| 2e 20 20 54 68 65 20 73 | 74 61 63 6b 20 61 6e 64 |.  The s|tack and|
|00000d30| 20 6d 65 6d 6f 72 79 20 | 61 72 65 20 69 6e 69 74 | memory |are init|
|00000d40| 69 61 6c 69 7a 65 64 20 | 74 6f 20 7a 65 72 6f 2e |ialized |to zero.|
|00000d50| 20 20 54 72 79 20 70 72 | 65 73 73 69 6e 67 20 74 |  Try pr|essing t|
|00000d60| 68 65 0d 0a 66 6f 6c 6c | 6f 77 69 6e 67 20 73 65 |he..foll|owing se|
|00000d70| 71 75 65 6e 63 65 20 6f | 66 20 6b 65 79 73 3a 20 |quence o|f keys: |
|00000d80| 22 32 22 2c 20 22 2b 22 | 2c 20 34 2c 20 22 2a 22 |"2", "+"|, 4, "*"|
|00000d90| 2e 20 20 59 6f 75 20 73 | 68 6f 75 6c 64 20 73 65 |.  You s|hould se|
|00000da0| 65 20 22 30 30 30 30 38 | 22 2c 0d 0a 77 68 69 63 |e "00008|",..whic|
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