*Ts. One groap nattier Man mem. Willie S8Snnrbere ls only USLUME I 8 NOD 'RESIDENT' S PRINTOUT ly Ken Fish

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1 Willie S8Snnrbere ls only One groap nattier Man mem *Ts USLUME I 8 NOD 'RESIDENT' S PRINTOUT ly Ken Fish Well folks, due to unforseen circumstances, I don't have much of an,rticle for you this month. As those of you who attend the meetings know, 'ye been unable to even attend lately due to some major problems at my mzestead. Everything from car problems to other family matters have dauged our family. The good news is it looks like the end is in sight even if it still seems a l000ng way off!!!). I did this program a long time ago when the Georgia Lottery was first tarting up. Now with Russ Keller's fine program in BasicOg I thought that aybe those of you who run RSDOS instead of 0S9 might be interested in it. here is also a challenge to go with it! You see,i NEVER claimed to be much d a programmer, so I know some of you industious types can make some lianges and refinements to this basic program and have my permission (and ppes) to do so. Send any revisions to the newsletter by way of the ACS BBS r mail and we'll get Russ to print them. Then all we have to do is wait or the Jackpot to get up high again and hope for the best. Good Luck! Til Later DITOR'S ECHO y Russ Keller This month there are articles by Ken Fish and Carl England. I.ownloaded Shell+ 2.2a from the board. I'll put it into my CMDS directory morrow and test it out. I'll try to review some games from the board next ionth also. Carl has the third installment of his series on Assembly language rograming. I'll make up some modules using BasicOg that can incorporated nto basic programs. I'll give illistrations incorporating the modules in rograms so you can do the same. Carl stated "Do not re-invent the wheel", rut you can improve the wheel or use fewer parts.

2 Till next month. LOTTERY By Ken Fish 10 A=RND(46) 20 B=RND(46) 30 IF B=A THEN 20 ELSE C=RND(46) 50 IF C=A OR C=B THEN 40 ELSE D=RND(46) 70 IF D=A OR D=B OR D=C THEN 60 ELSE E=RND(46) 90 IF E=D OR E=C OR E=B OR E=A THEN 80 ELSE F=RND(46) 110 IF F=E OR F=D OR F=C OR F=B OR F=A THEN!00 ELSE PRINT A 130 PRINT B 140 PRINT C 150 PRINT D 160 PRINT E 170 PRINT F 180 INPUT "DO YOU WANT MORE NUMBERS? (Y/N)"; AS 190 IF A$= "Y" THEN 10 ELSE IF AS= "N" THEN END ELSE 180 Two lines were corrected by yours truly. By Carl England Modular Programming - Part III User Interface This month's module will be a user interface. Because of its length, I will only include the module. Next month I will explain how to use this module--also I will include a short program to test this module. (To use this module, you must have the previous three modules: CLH, PRINT and DISKIO) ************************************************* * * MODULE: DIR * * DISPLAYS DIRECTORY, SELECT A FILE WITH ARROW * * KEYS * * MODULES CALLED: DISKIO, CLH, PRINT *

3 00190 * INPUT CONDITIONS: SDRIVE = SOURCE DRIVE * * EXIT CONDITIONS : REGISTER X POINTS TO FILE * * REGISTER A = ENTER OR SPACE * * REGISTERS B & U MODIFIED * * * ************************************************* DIRBUF EQU $E00 DIRECTORY BUFFER DIR LDD #$1103 TRACK 17, SECTOR LOU #DIRBUF DIRO JSR DSKIN GET A SECTOR LOX #$ DIRO1 LDA,X KILLED FILE? BEQ DIRO3 IF YES--SKIP IT INCA END OF DIRECTORY? BEQ DIR1 IF YES--EXIT LOB #16 GET 16 BYTES DIRO2 LDA,X+ GET A BYTE STA,U+ STORE IN BUFFER DECB FINISHED? BNE DIRO2 IF NO--LOOP BRA DIRO4 DON'T SKIP FILE DIRO3 LEAX 16,X SKIP FILE DIRO4 LEAX 16,X SKIP UNUSED DATA CMPX #$4FF END OF SECTOR? BLT DIRO1 IF NO--LOOP LDD 236 GET TRACK & SECTOR INCB NEXT SECTOR CMPB #19 LAST SECTOR? BNE DIRO IF NO--LOOP DIR1 STU DIR5 BUFFER END CLR DIR6 SET PAGE TO DIR11 LOU #DIRBUF BUFFER START CMPU DIR5 EMPTY BUFFER? BNE DIR2 IF NO--CONTINUE JSR CLH ELSE CLEAR THE SCREEN LDU #DIR8 GET TEXT CLRA DEVICE = SCREEN JSR PRINT PRINT MESSAGE DIR12 JSR ($A000) GET A KEY CMPA #3 BREAK? BEQ DIR IF YES--START OVER CMPA #48 LESS THAN ZERO? BLT DIR12 IF YES--LOOP CMPA #51 MORE THAN 3? BGT DIR12 IF YES--LOOP DIR13 SUBA #48 CONVERT ASCII DATA STA SDRIVE NEW SOURCE DRIVE BRA DIR START OVER DIR2 LDB DIR6 GET PAGE DIR21 DECB CORRECT PAGE? BMI 0IR22 IF YES--EXIT LEAU $200,U NEXT PAGE

4 00720 BRA DIR21 LOOP DIR22 STU DIR7 CURRENT PAGE JSR CLH CLEAR THE SCREEN DIR23 LDX $88 GET CURSOR POSITION LEAX 1,X PLUS STX $88 SAVE IT LDB #8 FILE NAME LENGTH BSR DIR33 PRINT FILE NAME LDA #$2E ),. t JSR ($A002) SEND TO SCREEN LDB #3 EXTENSION LENGTH BSR DIR33 PRINT EXTENSION LDD $88 GET CURSOR POSITION CMPD #$5F0 END OF SCREEN? BGE DI R25 IF YES--EXIT LDD #$ SPACES DI R24 JSR ($A002) SEND TO SCREEN DECB FINISHED? BNE DIR24 IF NO--LOOP LEAU 5,U SKIP REST OF DIRECTORY DATA CMPU DIR5 END OF BUFFER? BLT DIR23 IF NO--LOOP DIR25 LDU #$400 BEGINNING OF SCREEN LDX DIR7 CURRENT BUFFER POSITION DIR26 LDD #$3E3C "><" STA,U LEFT POINTER STB 13,U RIGHT POINTER DIR3 JSR ($A0001 READ KEYBOARD CMPA #$5E UP ARROW? BEQ DIR40 IF YES--PROCESS IT CMPA #$A DOWN ARROW? BEQ DIR41 IF YES-PROCESS IT CMPA #8 LEFT ARROW? BEQ DIR42 IF YES--PROCESS IT CMPA #9 RIGHT ARROW? BEQ DIR43 IF YES--PROCESS IT CMPA #$5F SHIFT UP ARROW? LBEQ DIR44 IF YES--PROCESS IT CMPA #$5B SHIFT DOWN ARROW LBEQ DIR45 IF YES--PROCESS IT CMPA #3 BREAK? LBEQ DIR IF YES--START OVER CMPA #13 ENTER? BNE DIR31 IF NO--CONTINUE RTS EXIT--PASS PARAMETERS DIR31 CMPA #32 SPACE? BNE DIR32 IF NO--CONTINUE RTS EXIT--PASS PARAMETERS DIR32 CMPA #48 LESS THAN ZERO? BLT DIR3 IF YES--LOOP CMPA #51 MORE THAN THREE? BGT DIR3 IF YES--LOOP LBRA DIR13 CHANGE DRIVE AND START OVER

5 01250 ************************************************* * * SUBROUTINE TO PRINT FILE NAME AND EXTENSION * * ************************************************* DIR33 LDA,U+ GET A BYTE JSR [$A002] SEND TO SCREEN DECB FINISHED? BNE DIR33 IF NO--LOOP RTS ELSE RETURN ************************************************* * * SUBROUTINE TO ERASE SCREEN POINTERS * ************************************************* DIR34 LDB #$60 BLANK SPACE STB,U ERASE LEFT POINTER STB 13,U ERASE RIGHT POINTER RTS RETURN ************************************************* * * UP ARROW * ************************************************* DIR40 BSR DIR34 ERASE POINTERS CMPU #$410 TOP OF SCREEN? BLE DIR26 IF YES--EXIT LEAU -32,U MOVE UP ONE LEAX -32,X BACK TWO FILES BRA DIR26 EXIT ************************************************* * * DOWN ARROW * ************************************************* DIR41 BSR DIR34 ERASE POINTERS CMPU #$5E0 BOTTOM OF SCREEN? BGE DI R26 IF YES--EXIT TFR X,D DATA TO ACCUMULATOR ADDD #32 FORWARD TWO FILES CMPD DIR5 END OF BUFFER? BGE DI R26 IF YES--EXIT LEAU 32,U MOVE DOWN TFR D,X SAVE NEW DATA BRA DIR26 EXIT ************************************************* * * LEFT ARROW * ************************************************* DIR42 BSR DIR34 ERASE POINTERS CMPU #$400 END OF SCREEN? LBEQ DIR26 IF YES--EXIT

6 01780 LEAU -16,U MOVE LEFT LEAX -16,X BACK ONE FILE LBRA DIR26 EXIT ************************************************* * * RIGHT ARROW * * ************************************************* DIR43 BSR DIR34 ERASE POINTERS CMPU #155F0 BEGINNING OF SCREEN? LBEQ DIR26 IF YES--EXIT TFR X,D DATA TO ACCUMULATOR ADDD #16 NEXT FILE CMPD DIR5 END OF BUFFER? LBGE DIR26 IF YES--EXIT LEAU 16,U MOVE RIGHT TFR D,X SAVE DATA LBRA DIR26 EXIT ************************************************* * * * SHIFT UP ARROW * ************************************************* DIR44 LDA DIR6 PAGE 0? LBEQ DIR3 IF YES--EXIT DECA PAGE STA DIR6 SAVE PAGE LBRA DIR11 LOOP ************************************************* * * SHIFT DOWN ARROW * ************************************************* CURRENT POSITION ADDD #S200 ADD A PAGE CMPD DIR5 BEYOND END OF BUFFER? LBGE DIR3 IF YES--EXIT INC DIR6 PAGE LBRA DIR11 LOOP DIR5 RIO 2 BUFFER END DIR6 RMB 1 PAGE NUMBER DIR7 RMB 2 BUFFER CURRENT POSITION DI R8 FCC /SOURCE DISK EMPTY!/ PCB 0 'till next month

7 Atlanta Computer Society P.O. Box Atlanta, Ga ALLEN HUFFMAN P. 0. BOX LUFKIN TX ADDRESS CORRECTION REQUESTED OFFICERS 1995 PRESIDENT Ken Fish VICE PRESIDENT Newton White EDITOR-TREASURER Russ Keller SECRETARY Alan Dages CLUB LIBRARIAN Telry Dodson ACS BBS Next Meeting November 22, 1994 Shoney's Jimmy Carter Blvd. Norcross December 20,1994 Shoney's So. Cobb Dr. Smyrna December 27,1994 Shoney's Jimmy Carter Blvd. Norcross