Your Commodore - Commodore Is Awesome

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PROGRAM: RESTORER BASE D1 10 A -82 20 FORDOTOB:EO:FORF0107:R 2 0 4EADS 9 : 816 330 5 : CIFS255THENPRINT"ERR . . . 1OR 0 IN 0 LINE";C+(D*10):END EF 40 POKEA+CD*8) -4- TV 38 F,6:E...E4-6:NEX SO READG:IFSETHENPRINT"ERR OR IN LINE";OA-(D*10) 02 60 NEXTD 40 100 DATA 16,8,196,7,158,50,4 8,54,537 4D 110 DATA 54,58,82,67,68,49,0 ,0,378 C9 120 DATA 0 , ,141,33,735 1EF 6130 9 , 1DATA 1 , 1 208,159,15,141,134, 4 1 , 32,169,23,861 2 , 2 0 8 08 140 DATA 141,24,208,169,128, 141,145,2,858 FS 150 DATA 32,58,225,160,0,185 ,182,8,864 F4 160 DATA '153,0,4,200,192,34, 208,245,1036 12 170 DATA 160,0,185,73,8,153, 52,3,534 45 180 DATA 200,192,112,208,245 ,76,52,3,1088 97 190 DATA 120,165,0,133,1,169 ,0,133,725 FE 200 DATA 251,169,8,133,252,1 52,248,150,1383 14 210 DATA 127,168,0,145,251,1 35,192,63,1083 BS 220 DATA 208,249,169,255,145 ,251,135,15,1429 D5 230 DATA 2 5 1 , 120,133,251,1308 1 5 5 , 2 5 1 80 , 240 2 4 , DATA 1 0 5 165,252,105,0,133,2 , 52,202,208,1317 E4 250 DATA 222,155,252,201,132 ,240,214,150,1595 9A 250 DATA 55,133,1,160,0,185, 128,3,655 C64 PROGRAMMING 78 270 DATA 153,80,4,200,192,32 ,208,245,1114 2F 280 DATA 7 6 , 1 ,14,340 2 4 , 3 , 0 , 75 8 290 4 , 2 DATA 1 , 1 832,69,24,15,5,18,20 ,32,216 Al 300 DATA 7 9 , 8,5,400 7OA 310 DATA 1 9 0 , , 7 20,201 0 , 4 6 , 3 2 , 63 81 0 320 , 1 DATA 4 5 , 9 , 3 ,16,251 2 , 8 2 , 5 , 1 3F8 9 2 , 330 5 , , 3 2 DATA , 3 2 5,18,20,32,77,5,13, , 0 , 8 9 15,185 , 2 4 51 340 DATA 1 8 , ,15,218 26F 5 350 , 3 2 DATA , 8 2 , 158 , 1 9 ,67,299 , 2 0 87 5 , 360 1 8 , DATA 3 2 , 455 8 , 3, 42 6,32,399 9 , 8, 23 2 , 4 9 7A , 370 5 7 , DATA 6 6 , 50 , 0 OA , 380 0 , 0 DATA , 0 , 02 2 8 , 0 , 5,201,50,1233 3 2 , 3 2 2E2 5390 5 , 2 DATA 0 1 , 429 0, 28 4, 20 2,8,152,1111 4, 5 , 1 6 2 , 53 8 , 400 7 6 , DATA 2 4 1 , 6,255,804 79 1 6410 9 , 1 DATA , 1 6 1E9,15,182,19,160,9 0 , 0 , ,32,189,755 3 2 , 1 0 31 420 DATA 255,155,1,133,251,1 58,8,133,1119 85 430 DATA 252,169,251,162,218 ,160,8,76,1296 5A 440 DATA 215,255,77,59,77,79 ,82,99,944 D9 450 DATA 32,82,59,93,84,75,8 2,59,580 22 460 DATA 82,0,0,0,0,0,0,0,82 80 500 PRINT"CCLR3PRESS '1' TO SAVE RESTORER TO TAPE," 01 510 PRINT"CSPC3JOR '2' TO SA VE TO DISK." 19 520 8'152272 Fifty Y O U R COMMODORE
Create your own Basic loaders without effort for all those data statements By J. Kinley piece of machine code program- I ming you've devoted many hours of t your life to writing is finally bugfree ' and running beautifully. Filled with s a longing to share your creation with w your fellow man, you survey your arsenal e of machine code development aids - editors, assemblers, loaders and the l rest. If only you had an easy , of l way turning your work back into a nice, simple p Basic loader that other users could a type in._ s Loaderbuild is just the utility you've t been looking for. This program will take machine code (or any other m numerical data) stored in the memory of i your CM, and turn it into a Basic loader. d This has a list of potential applications. n Maybe you want to submit i your code to a magazine for gpublication? A Loaderbuild loader is h an ideal form of presentation. <strong>Your</strong> code will be turned into DATA statements, t with a checksum for each , line, as an aid to anyone typing the tloader into their own machine. You could h also make use of Loaderbuild to e share your programs with a friend mwho lacks your own development facilities. a Perhaps you could use it just to keep your work in an easily s accessible form. For whatever reasons, t most machine code programmers eshould fi nd Loaderbuild a useful raddition to their collection of utilities. - The listing of the "DEMO" program is an example of a loader constructed by Loaderbuild. The start address for the machine code is automatically inserted into line 140, and the number of DATA lines calculated and entered into line 150. The machine code data in question is then written into DATA statements, C64 PROGRAMMING LOADERBUILDER starting from line 200, with 16 items to each line. If necessary, the last DATA line is made up to full length with zeros. Every DATA statement is given a checksum as a guard against typing errors if the loader is keyed into another computer. If you want to try "DEMO" out, enter it into your CM then RUN it. There will be a brief pause while the DATA items are POKEd into memory, in this case from location 49152 onwards. Now use SYS 49152 to run the machine code. OK, not very exciting, but serves to demonstrate the idea! Using Loaderbuild Loaderbuild is written in Basic. No problem if your machine code is in a 'safe' area of the computer (such as above location 49152). However, if your code is in an area normally used by Basic, then don't forget to reset top or bottom of Basic as necessary before letting Loaderbuild loose in your machine. In case you don't know how, the limits of the Basic area are set using the following POKEs:- POKE 51, (bottom of BASIC, low byte) POKE 52, (bottom of BASIC, high byte) POKE 55, (top of BASIC, low byte) POKE 56, (top of BASIC, high byte) If you make any adjustments, follow them with a CLR to get the computer used to the idea. Now load 'LOADERBUILD' and RUN it. The program will ask you to input start and finish addresses for the code to be worked on. You can enter this information in either decimal, or in hex (preceded with the customary $ sign). Next tell the program the name under which the new loader is to be stored on disk - and that's it, the computer does the rest. To use your loader, reset top and bottom of Basic if necessary (see above), then simply LOAD it from disk, where it will have been saved under the name you gave it, and RUN in the usual way. How Loaderbuild Works Lines 1000-2210 The input section for start and finish addresses, and loader name. Calls subroutines at line 6000 to check against invalid entries, and 7000 to handle any input errors. Lines 3000-3300 Sets up the Basic lines of the loader and writes them to disk, Inserts start address into loader, and calculated number of DATA lines. Note variables KL and KW These are pointers to the start of the next line in Basic, and must be calculated for each line. The actual Basic lines are in coded DATA statements, starting from line 10000. Repeated calls are made to subroutines at 8000 (which finishes construction of each Basic line and numbers it), and 9000 (which writes a Basic line to disk). Lines 4000-4090 Compiles DATA statements, 16 items to a line. Fills last line with zeros as necessary. Calls subroutine at 5000, which finishes construction of the Basic DATA statement. Lines 5000-5090 See 4000-4090. Calls subroutine at 9000 to write BASIC line to disk. Lines 6000-6260 Checks start and finish addresses for following conditions:- Illegal characters Entry too long Invalid memory location Also converts hex entries into decimal. Lines 7000-7080 Prints error message and waits for a key to be pressed before continuing. Lines 8000-8150 & Lines 9000-9050 See lines 300-3300 Lines 10000-10150 DATA statements containing BASIC lines. All keywords are in tokenised form, flagged with # sign. YOUR COMMODORE F i t l y One
Page 1 and 2: i YOUR L12 DECEMBER 1989 f1•30 I
Page 3 and 4: V K E Y B O A R D M O D U L E . - I
Page 5 and 6: inhoppo..• - ;rt H'S tr FEATURES
Page 7 and 8: Proof that there was nothing there
Page 9 and 10: 11:0kTI- 1 One Good Nurd„. Who we
Page 11 and 12: est game in the collection and well
Page 13 and 14: GIN KING/ CRIBBAGE KING Software To
Page 15 and 16: 00 410 -4•111k abb. di. Z - 11% ,
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Page 19 and 20: swallowing Moby Dick whole. Not tha
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Page 25 and 26: i n, ; it, on- In Jy to / 0 u [ere
Page 27 and 28: :h you iveness I Lid i ng trucks p
Page 29: can )dy ust do es. P117- I the are
Page 32 and 33: 1 C 6 4 PROGRAMMING MACRO ASSEMBLER
Page 34 and 35: Editor Commands Summary A SYNTAX/ A
Page 36 and 37: 1 rather time consuming, and a wast
Page 38 and 39: Editor commands which use filenames
Page 40 and 41: 82 1220 DATA 0,141,138,111,173, 21,
Page 42 and 43: 43 780 DATA 21,128,173,202,115, 109
Page 44 and 45: C64 PROGRAMMING 84 340 DATA 131.169
Page 46 and 47: C64 PROGRAMMING 32 1960 DATA 155,23
Page 48 and 49: C64 PROGRAMMING EA A2 SC E3 56 1520
Page 52 and 53: PROGRAM:LOADERBUILD 64 1000 REM 73
Page 54 and 55: UNIT 1 DRAKE HOUSE RAMSOF 160 DRAKE
Page 56 and 57: TREAT YOURSELF... Subscription Rate
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Page 60 and 61: FEATURE Above: Amanda Barry, put yo
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Page 84: C) 1989 Columbia Pictures Industrie

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