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This file was processed as: AMOS Basic Source Code Archive
(archive/amosSrc).
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| 41 4d 4f 53 20 42 61 73 | 69 63 20 56 31 2e 30 30 |AMOS Bas|ic V1.00|
|00000010| 00 00 07 6c 2b 01 06 52 | 00 4e 2a 2a 2a 2a 2a 2a |...l+..R|.N******|
|00000020| 2a 2a 2a 2a 2a 2a 2a 2a | 54 48 45 20 57 4f 52 4c |********|THE WORL|
|00000030| 44 20 49 53 20 45 56 45 | 52 2d 43 48 41 4e 47 49 |D IS EVE|R-CHANGI|
|00000040| 4e 47 2d 42 79 20 4d 61 | 72 6b 20 57 69 63 6b 73 |NG-By Ma|rk Wicks|
|00000050| 6f 6e 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |on******|********|
|00000060| 2a 2a 2a 2a 2a 2a 2a 20 | 00 00 29 01 06 4a 00 4a |******* |..)..J.J|
|00000070| 20 56 61 72 69 61 62 6c | 65 73 2d 54 68 65 79 27 | Variabl|es-They'|
|00000080| 72 65 20 74 68 65 20 6b | 65 79 20 74 6f 20 67 6f |re the k|ey to go|
|00000090| 6f 64 20 70 72 6f 67 72 | 61 6d 6d 69 6e 67 2d 41 |od progr|amming-A|
|000000a0| 6e 64 20 61 6c 6f 74 20 | 6f 66 20 74 68 65 20 65 |nd alot |of the e|
|000000b0| 78 61 6d 70 6c 65 73 20 | 6f 6e 00 00 0e 01 06 4a |xamples |on.....J|
|000000c0| 00 14 20 74 68 69 73 20 | 64 69 73 6b 20 75 73 65 |.. this |disk use|
|000000d0| 20 74 68 65 6d 2e 00 00 | 29 01 06 4a 00 4a 20 46 | them...|)..J.J F|
|000000e0| 6f 72 20 61 20 62 65 74 | 74 65 72 20 64 65 66 69 |or a bet|ter defi|
|000000f0| 6e 69 74 69 6f 6e 20 6f | 66 20 76 61 72 69 61 62 |nition o|f variab|
|00000100| 6c 65 73 20 6c 6f 6f 6b | 20 61 74 20 74 68 65 20 |les look| at the |
|00000110| 6f 6e 2d 64 69 73 6b 20 | 64 6f 63 75 6d 65 6e 74 |on-disk |document|
|00000120| 20 66 69 6c 65 73 2e 20 | 00 00 26 01 06 4a 00 44 | files. |..&..J.D|
|00000130| 20 41 20 76 61 72 69 61 | 62 6c 65 20 69 73 20 73 | A varia|ble is s|
|00000140| 6f 6d 65 74 68 69 6e 67 | 20 74 68 61 74 20 63 68 |omething| that ch|
|00000150| 61 6e 67 65 73 28 49 74 | 20 56 41 52 49 45 53 2d |anges(It| VARIES-|
|00000160| 48 65 6e 63 65 20 76 61 | 72 69 61 62 6c 65 29 2c |Hence va|riable),|
|00000170| 69 6e 20 20 00 00 27 01 | 06 4a 00 46 20 70 72 6f |in ..'.|.J.F pro|
|00000180| 67 72 61 6d 6d 69 6e 67 | 2c 61 6c 6f 74 20 6f 66 |gramming|,alot of|
|00000190| 20 63 6f 6f 72 64 69 6e | 61 74 65 73 20 63 61 6e | coordin|ates can|
|000001a0| 20 62 65 20 76 61 72 69 | 61 62 6c 65 73 2c 61 6e | be vari|ables,an|
|000001b0| 64 20 79 6f 75 20 63 61 | 6e 20 77 6f 72 6b 20 6f |d you ca|n work o|
|000001c0| 75 74 00 00 26 01 06 4a | 00 44 20 63 6f 6d 70 6c |ut..&..J|.D compl|
|000001d0| 69 63 61 74 65 64 20 70 | 72 6f 62 6c 65 6d 73 20 |icated p|roblems |
|000001e0| 77 69 74 68 20 74 68 65 | 6d 2e 49 66 20 49 20 68 |with the|m.If I h|
|000001f0| 61 64 20 61 20 63 6f 6f | 72 64 69 6e 61 74 65 2c |ad a coo|rdinate,|
|00000200| 66 6f 72 20 65 78 61 6d | 70 6c 65 2c 69 74 00 00 |for exam|ple,it..|
|00000210| 26 01 06 4a 00 44 20 73 | 74 61 72 74 20 61 74 20 |&..J.D s|tart at |
|00000220| 35 28 53 6f 20 6c 65 74 | 73 20 69 6d 61 67 69 6e |5(So let|s imagin|
|00000230| 65 20 69 74 20 77 61 73 | 20 61 20 42 6f 62 73 20 |e it was| a Bobs |
|00000240| 68 6f 72 69 7a 6f 6e 74 | 61 6c 20 63 6f 6f 72 64 |horizont|al coord|
|00000250| 69 6e 61 74 65 20 69 6e | 20 61 00 00 10 01 06 4a |inate in| a.....J|
|00000260| 00 18 20 6d 61 69 6e 20 | 6c 6f 6f 70 20 6f 66 20 |.. main |loop of |
|00000270| 61 20 67 61 6d 65 29 3a | 20 20 00 00 0b 01 06 4a |a game):| .....J|
|00000280| 00 0e 20 42 6f 62 20 31 | 2c 35 2c 31 30 30 2c 31 |.. Bob 1|,5,100,1|
|00000290| 00 00 28 01 06 4a 00 48 | 20 42 75 74 20 6e 6f 77 |..(..J.H| But now|
|000002a0| 20 49 20 77 61 6e 74 20 | 74 6f 20 6d 61 6b 65 20 | I want |to make |
|000002b0| 74 68 65 20 42 6f 62 73 | 20 68 6f 72 69 7a 6f 6e |the Bobs| horizon|
|000002c0| 74 61 6c 20 76 61 6c 75 | 65 20 63 68 61 6e 67 65 |tal valu|e change|
|000002d0| 2d 49 20 63 6f 75 6c 64 | 20 77 72 69 74 65 20 20 |-I could| write |
|000002e0| 00 00 0c 01 06 4a 00 10 | 20 42 6f 62 20 31 2c 31 |.....J..| Bob 1,1|
|000002f0| 30 2c 31 30 30 2c 31 20 | 00 00 25 01 06 4a 00 42 |0,100,1 |..%..J.B|
|00000300| 20 62 75 74 20 69 66 20 | 49 20 77 61 6e 74 20 74 | but if |I want t|
|00000310| 6f 20 6d 61 6b 65 20 74 | 68 65 20 68 6f 72 69 7a |o make t|he horiz|
|00000320| 6f 6e 74 61 6c 20 76 61 | 6c 75 65 20 63 68 61 6e |ontal va|lue chan|
|00000330| 67 65 20 61 67 61 69 6e | 2c 49 27 64 20 68 61 76 |ge again|,I'd hav|
|00000340| 65 20 00 00 09 01 06 4a | 00 0a 20 74 6f 20 77 72 |e .....J|.. to wr|
|00000350| 69 74 65 3a 00 00 0c 01 | 06 4a 00 10 20 42 6f 62 |ite:....|.J.. Bob|
|00000360| 20 31 2c 31 35 2c 31 30 | 30 2c 31 20 00 00 28 01 | 1,15,10|0,1 ..(.|
|00000370| 06 4a 00 48 20 41 73 20 | 79 6f 75 20 63 61 6e 20 |.J.H As |you can |
|00000380| 73 65 65 2c 69 66 20 49 | 20 64 6f 6e 27 74 20 77 |see,if I| don't w|
|00000390| 61 6e 74 20 74 6f 20 6d | 61 6b 65 20 69 74 73 20 |ant to m|ake its |
|000003a0| 70 6f 73 69 74 69 6f 6e | 20 63 68 61 6e 67 65 20 |position| change |
|000003b0| 64 72 61 73 74 69 63 61 | 6c 6c 79 20 00 00 26 01 |drastica|lly ..&.|
|000003c0| 06 4a 00 44 20 69 6e 20 | 6f 6e 65 20 73 74 65 70 |.J.D in |one step|
|000003d0| 2c 49 20 68 61 76 65 20 | 74 6f 20 77 72 69 74 65 |,I have |to write|
|000003e0| 20 61 6c 6f 74 20 6f 66 | 20 6c 69 6e 65 73 2d 55 | alot of| lines-U|
|000003f0| 6e 6c 65 73 73 20 49 20 | 75 73 65 20 61 20 76 61 |nless I |use a va|
|00000400| 72 69 61 62 6c 65 2e 20 | 00 00 26 01 06 4a 00 44 |riable. |..&..J.D|
|00000410| 20 41 20 76 61 72 69 61 | 62 6c 65 20 6d 75 73 74 | A varia|ble must|
|00000420| 20 62 65 20 67 69 76 65 | 6e 20 61 20 6e 61 6d 65 | be give|n a name|
|00000430| 2d 49 6e 20 74 68 69 73 | 20 63 61 73 65 2c 77 65 |-In this| case,we|
|00000440| 27 72 65 20 6d 61 6e 69 | 70 75 6c 61 74 69 6e 67 |'re mani|pulating|
|00000450| 20 74 68 65 00 00 29 01 | 06 4a 00 4a 20 58 20 61 | the..).|.J.J X a|
|00000460| 78 69 73 20 6f 66 20 61 | 20 42 6f 62 2c 73 6f 20 |xis of a| Bob,so |
|00000470| 77 68 79 20 6e 6f 74 20 | 63 61 6c 6c 20 69 74 20 |why not |call it |
|00000480| 22 58 22 28 59 6f 75 20 | 63 6f 75 6c 64 20 63 61 |"X"(You |could ca|
|00000490| 6c 6c 20 69 74 20 61 6c | 6d 6f 73 74 20 61 6e 79 |ll it al|most any|
|000004a0| 74 68 69 6e 67 29 00 00 | 27 01 06 4a 00 46 2d 46 |thing)..|'..J.F-F|
|000004b0| 69 72 73 74 20 77 65 20 | 68 61 76 65 20 74 6f 20 |irst we |have to |
|000004c0| 77 72 69 74 65 20 69 74 | 73 20 73 74 61 72 74 69 |write it|s starti|
|000004d0| 6e 67 20 70 6f 69 6e 74 | 2c 69 6e 20 74 68 69 73 |ng point|,in this|
|000004e0| 20 63 61 73 65 20 77 65 | 20 77 61 6e 74 20 69 74 | case we| want it|
|000004f0| 20 74 6f 20 00 00 0a 01 | 06 4a 00 0c 20 73 74 61 | to ....|.J.. sta|
|00000500| 72 74 20 61 74 20 35 3a | 00 00 06 01 06 4a 00 04 |rt at 5:|.....J..|
|00000510| 20 58 3d 35 00 00 13 01 | 06 4a 00 1e 20 54 68 65 | X=5....|.J.. The|
|00000520| 6e 20 77 65 77 72 69 74 | 65 20 69 6e 73 69 64 65 |n wewrit|e inside|
|00000530| 20 6f 75 72 20 6c 6f 6f | 70 3a 00 00 07 01 06 4a | our loo|p:.....J|
|00000540| 00 06 20 58 3d 58 2b 35 | 00 00 25 01 06 4a 00 42 |.. X=X+5|..%..J.B|
|00000550| 20 53 6f 20 65 76 65 72 | 79 20 6c 6f 6f 70 2c 22 | So ever|y loop,"|
|00000560| 58 22 20 69 73 20 69 6e | 63 72 65 61 73 65 64 20 |X" is in|creased |
|00000570| 62 79 20 35 2d 54 68 65 | 6e 20 77 65 20 77 6f 75 |by 5-The|n we wou|
|00000580| 6c 64 20 73 75 62 73 74 | 69 74 75 74 65 20 74 68 |ld subst|itute th|
|00000590| 65 20 00 00 18 01 06 4a | 00 28 20 68 6f 72 69 7a |e .....J|.( horiz|
|000005a0| 6f 6e 74 61 6c 20 63 6f | 6f 72 64 69 6e 61 74 65 |ontal co|ordinate|
|000005b0| 20 66 6f 72 20 6f 75 72 | 20 76 61 72 69 61 62 6c | for our| variabl|
|000005c0| 65 3a 00 00 0b 01 06 4a | 00 0e 20 42 6f 62 20 31 |e:.....J|.. Bob 1|
|000005d0| 2c 58 2c 31 30 30 2c 31 | 00 00 1f 01 06 4a 00 36 |,X,100,1|.....J.6|
|000005e0| 20 53 6f 20 6e 6f 77 20 | 74 68 65 20 42 6f 62 20 | So now |the Bob |
|000005f0| 69 73 20 64 69 73 70 6c | 61 79 65 64 20 61 74 20 |is displ|ayed at |
|00000600| 6e 65 77 20 70 6f 73 69 | 74 69 6f 6e 73 20 65 61 |new posi|tions ea|
|00000610| 73 69 6c 79 2e 20 00 00 | 27 01 06 4a 00 46 20 41 |sily. ..|'..J.F A|
|00000620| 6e 79 74 68 69 6e 67 20 | 74 68 61 74 20 75 73 65 |nything |that use|
|00000630| 73 20 6e 75 6d 62 65 72 | 73 28 4f 72 20 74 65 78 |s number|s(Or tex|
|00000640| 74 29 20 63 61 6e 20 62 | 65 20 6d 61 6e 69 70 75 |t) can b|e manipu|
|00000650| 6c 61 74 65 64 20 62 79 | 20 76 61 72 69 61 62 6c |lated by| variabl|
|00000660| 65 73 2e 20 00 00 29 01 | 06 4a 00 4a 20 69 6e 20 |es. ..).|.J.J in |
|00000670| 74 68 69 73 20 65 78 61 | 6d 70 6c 65 2c 77 65 20 |this exa|mple,we |
|00000680| 70 72 69 6e 74 20 74 68 | 65 20 6c 61 74 65 73 74 |print th|e latest|
|00000690| 20 76 61 6c 75 65 20 6f | 66 20 74 68 65 20 76 61 | value o|f the va|
|000006a0| 72 69 61 62 6c 65 20 22 | 58 22 2d 45 61 63 68 20 |riable "|X"-Each |
|000006b0| 6c 6f 6f 70 2c 20 00 00 | 13 01 06 4a 00 1e 20 77 |loop, ..|...J.. w|
|000006c0| 65 20 69 6e 63 72 65 61 | 73 65 20 69 74 73 20 76 |e increa|se its v|
|000006d0| 61 6c 75 65 20 62 79 20 | 6f 6e 65 2e 00 00 1f 01 |alue by |one.....|
|000006e0| 06 4a 00 36 20 59 4f 55 | 27 4c 4c 20 48 41 56 45 |.J.6 YOU|'LL HAVE|
|000006f0| 20 54 4f 20 42 52 45 41 | 4b 20 4f 55 54 20 4f 46 | TO BREA|K OUT OF|
|00000700| 20 54 48 49 53 20 57 48 | 45 4e 20 59 4f 55 20 47 | THIS WH|EN YOU G|
|00000710| 45 54 20 42 4f 52 45 44 | 21 20 00 00 0a 01 00 06 |ET BORED|! ......|
|00000720| 00 00 02 00 78 00 ff a2 | 00 3e 00 00 00 00 00 00 |....x...|.>......|
|00000730| 04 01 02 7e 00 48 00 00 | 0f 01 00 06 00 00 02 00 |...~.H..|........|
|00000740| 78 00 ff a2 00 06 00 00 | 02 00 78 00 ff c0 00 3e |x.......|..x....>|
|00000750| 00 00 00 01 00 00 12 01 | 04 76 13 c6 00 74 00 3e |........|.v...t.>|
|00000760| 00 00 00 00 00 5c 00 3e | 00 00 00 00 00 7c 00 64 |.....\.>|.....|.d|
|00000770| 00 06 00 00 02 00 78 00 | 00 00 03 01 02 86 00 00 |......x.|........|
|00000780| 41 6d 42 73 00 00 | |AmBs.. | |
+--------+-------------------------+-------------------------+--------+--------+
