The 6502 Journal

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The 6502 Journal NO. 33 $2.00 FEBRUARY 1981 THE 6502 JOURNAL eart of Applesoft PET String Flip crease KIM-1 Versatility at Low Cost Atari Assembler AA CIPSound Idea Simple Securities Manager for the Apple You probably know optimization, and, since about the SoftCard — our it doesn’t require a “P- ingenious circuit card that code” interpreter at run converts an Apple If® into a time, your programs will Z-80® machine running typically execute 2-3 CP/M® times faster than with You may even know Apple FORTRAN. that with the SoftCard, you get Microsoft’s FORTRAN is easy to powerful BASIC — extended to support learn if you know BASIC, Apple graphics and many other features. and the package in­ Now, whenever you’re ready to get beyond the cludes a huge library of BASICs, the SoftCard can take you into whole floating point, math, new realms. Starting with two advanced and I/O routines language packages from Microsoft. you can use in all FORTRAN AND your programs. COBOL TO GO. COBOL-8O Now you can run the Virtually the only choice for world's most popular serious business data processing. engineering/scientific lan­ It’s ANS11974 standard COBOL, with many user-oriented guage and the most popular features added: formatted screen support for CRT termi­ business language on your nals, simple segmenting of very large programs, powerful Apple. Think what that means: you can choose from liter­ file handling capability, trace debugging, and much ally thousands of “off-the-shelf" applications programs, more. A separate Sort package is coming soon. and have them working with little conversion. Or design FORTRAN-80 and COBOL- 8O are just two more rea­ your own programs, taking advantage of ail the problem­ sons why the Apple with SoftCard is the world’s most ver­ solving power these specialized languages give you. satile personal computer. Get all the exciting details from your Microsoft dealer today. And start getting beyond the F0RTRAN-80 BASICs. A complete ANSI-standard FORTRAN (except MICROSOFT Consumer Products, 400108th Ave. COMPLEX type), with important enhancements. The ex­ N.E., Suite 200, Bellevue, WA 98004. (206) 454-1315 tremely fast compiler performs extensive code is a registered trademark of Apple Com- Hog. Inc ’ CP/M is a registered trademark SPECIAL Additional 10% off on all CBM hardware INTRODUCING ROM PET RABBIT CASSETTE EHS IS NOW A The PET RABBIT contains high-speed cassette routines, COMMODORE DEALER auto-repeat key feature, memory test, decimal to hex, hex EHS offers a number of software products for PET, ATAR I, to decimal, and other features. Coexists with the BASIC APPLE, and other 6502 computers. Now we sell CBM PROGRAMMERS TOO LKIT. Works with 3.0 ROMS hardware. If you're in the market for PET products, be (New) and new style cassette deck. sure to look for our FREE software offers. Note: Be sure Cassette versions configured for $1800, $3000, $3800, and deduct 10%. $7000, and $7800. (3.0 ROMS only) CBM PRODUCT DESCRIPTION PRICE Cassette and manual — $29.95 4001-8KN 8K RAM-Graphics Keyboard $ 795.00 ROM version configured to plug into P.C. board at $AOOO. 4001-32KN 32K RAM-Graphics Keyboard $1295.00 ■(Specify 3.0 or 4.0 ROMS) 8032 32K RAM 80 Col.-4.0 O/S $1795.00 'ROM and manual — $49.95 2022 Tractor Feed Printer $ 795.00 FREE ROM RABBIT with purchase of 8K PET and tape 4040 Dual Floppy-343K-DOS 2.1 $1295.00 deck. 8050 Dual Floppy-974K-DOS 2.0 $1695.00 SPECIAL - ROM RABBIT and cassette deck — only $134.95 C2N Cassette External Cassette Drive $ 95.00 CBM to IEEE CBM to 1st IEEE Peripheral $ 39.95 IEEE to IEEE CBM to 2nd IEEE Peripheral $ 49.95 MACRO ASSEMBLER 8010 IEEE 300 Baud Modem $ 395.00 AND 2.0 DOS DOS Upgrade for 2040 $ 80.00 4.0 0/S O/S Upgrade for 40 Column $ 110.00 TEXT EDITOR ** VIC Computer New Commodore $ Call or Write Macro and conditional assembly, string search and replace, 10 char./label, AUTO line numbering. MOVE, COPY, EDUCATIONAL DISCOUNTS DELETE, NUMBER, and much more 20+ commands, and BUY 2 — GET 1 FREE 20+ pseudo ops. PET cassette version (ASSM/TED) — $49.95. TRAP 65 (Specify 2.0, 3.0, or 4.0 ROMS.) TRAP 65 prevents the 6502 from execulting unimplemented PET disk version (MAE) — $169.95 instructions. Have you ever had your system to crash on a (Specify 3.0, 4.0, or 8032) bad upcode? This is a real machine language debugging tool ATARI cassette version with machine language monitor — and time saver. Also useful for teaching trap vectoring and $53.95 extension of instruction set in schools. 3'/i X 4% printed circuit board which plugs into 6502 socket of any PET, FREE ASSM/TED and ROM RABBIT with purchase of APPLE, SYM. Only $149.95. 32K PET and cassette deck. FREE MAE with purchase of 32K PET and disk drive. ATARI M.L. MONITOR Load and save binary data on cassette. Display and change TINY-C FOR PET 6502 registers. Will coexist with BASIC. Monitor uses the An adaptation of the TIN Y-C interpreter sold by Tiny-C screen editing capabilities of the ATARI to allow easy use. Assoc. Useful for learning a modern structured programming Cassette and manual - $9.95 (specify memory size). language. Diskette - $50.00. Owners manual - $50.00 ATARI MEMORY TEST FREE MAE and TINY-C with purchase of 32K PET, disk When you purchase a new ATARI or add on new RAM drive, and printer. modules, you need to be sure that the memory is working properly. (Remember, you only have a short guarantee on COMPILERS your memory!) Cassette and manual — $6.95. Graphics Drawing Compiler for PET and SYM. Works with Macro ASSM/TED. The GDC is composed of a number of APPLE PRODUCTS macros which emulate a high-level graphics drawing language. Macro ASSM/TED — includes manual, on cassette — In addition to the macros, GDC provides some very useful $49.95, on disk — $55.95 enhancements to the ASSM/TED. Manual and Cassette — Apple MAE - similar to PET MAE. A powerful assembly $29.95. development system on diskette for 48K APPLE II or plus. Music and Sound Composer for PET. Works with Macro (Requires license agreement) — $169.95. ASSM/ TED. The MSC is composed of a number of macros PIG PEN — 100% M.L. word processor for use with Apple which emulate a high-level computer music language. In ASSM/TED. Fast text formatting, vertical and horizontal addition to the macros, MSC provides some very useful margins, right and left justification, centering, titles, foots, enhancements to the ASSM/TED. Manual and Cassette — shapes, etc. Manual and source included, on cassette — $40.00, on diskette — $45.00 $29.95. ______ Apple Mail List System. Provides sorting on zip code or I/O KIT last name. Approximately 1000 names/diskette. Manual PET I/O Experimenters Kit. Allows easy access to IEEE or and Diskette — $34.95. ______________ user port for the construction of external circuits. Kit — $39.95. _____________________________ EASTERN HOUSE SOFTWARE ORDERING TERMS 3239 Linda Drive, Winston-Salem, N.C. 27106 Send check or money order in U.S. dollars. Add 2% for Ph. Orders - 9-4 EST (919) 924-2889 postage for CBM orders. Overseas software orders add After 4 pm 748-8846 $5.00. All software mailed free in USA and Canada. Send SASEfor free catalog __________ Purchase orders acceptable. No. 33 - February 1981 MICRO - The 6502 Journal Photo credit: GREAT GALAXY IN ANDROMEDA: Palomar Observatory, California Institute of Technology THE MTU FLOPPY DISK CONTROLLER WITH 16K RAM GIVES YOUR AIM-65 ION DRIVE POWER! CODOS SOFTWARE HARDWARE CODOS DISK OPERATING SOFTWARE • 16K 2 PORT RAM ONBOARD WITH WRITE PROTECT 8K RAM RESIDENT ALLOWS UPGRADES • USES THE NEC-765 DISK CONTROLLER CHIP FINDS AND LOADS 32K BYTES IN 3 SECONDS • ROM BOOTSTRAP LOADER SPEEDS LOADING STARTUP FILE EXECUTES AT BOOT-UP • DMA OPERATION ALLOWS INTERRUPTS COMMAND FILE EXECUTION FROM DISK • SUPPORTS 8 INCH DRIVES 1 OR 2 SIDED DYNAMIC DISK STORAGE ALLOCATION • MAXIMUM STORAGE IS 4 MEGABYTES DEVICE-INDEPENDENT I/O • ANALOG PLL DATA SEPERATOR TRUE RANDOM ACCESSTO RECORD IN ONE ACCESS SYSTEM FEATURES MONITOR WITH 29 BUILT-IN COMMANDS • FORMAT UTILITY LOGS OUT DEFECTIVE SECTORS FULL ENGLISH ERROR MESSAGES • DISK/FILE COPY WITH WILDCARD SELECTION FILE NAMES 12 CHARACTERS + EXTENSIONS • SYSTEM CUSTOMIZATION UTILITY FILE SIZE UP TO 1 MEGABYTE • VISIBLE MEMORY TERMINAL DRIVER PROVIDED UPTO 247 FILES PER DISK DRIVE • INTERCHANGE CODOS SOFTWARE INDIVIDUAL WRITE PROTECT ON FILES AMONG KIM, SYM, AIM, PET SYSTEMS WORKS WITH AIM EDITOR, ASSEMBLER, • IN FIELD USE FOR OVER 6 MONTHS BASIC AND MONITOR ROMS SUPERVISOR CALLS AVAILABLE TO USER PROGRAM K-1013M Hardware Manual-$10, K-1013-3M CODOS manual-$25, K-1013-3D RAM/Disk controller with CODOS-$595, Floppy drives, cables, power supply also available. MASTERCARD & VISA accepted WRITE OR CALL TODAY FOR OUR 48 PAGE FALL 1980 CATALOG DESCRIBING ALL MTU 6502 PRODUCTS, INCLUDING 320 BY 200 GRAPHICS, AIM GRAPHIC/TEXT PRINT SOFTWARE, BANK-SWITCHABLE RAM/ROM/I-O, AIM CARD FILE, POWER SUPPLY AND MORE' Micro Technology Unlimited • 2 8 0 6 Hillsborough St. • P.O. Box 12106 • Raleigh, N.C. 27605 • (919)833-1458 NO. 33____________________________________ FEBRUARY 1981 /AlCftOTHE 6502JOURNAL STAFF CONTENTS 7 A SIMPLE SECURITIES MANAGER FOR THE APPLE Editor/Publisher ( Use the Apple to evaluate your holdings ROBERT M. TRIPP By Ronald A. Guest Associate Publisher RICHARD RETTIG WHY WAIT? 15 Understand and use the WAIT function in Ohio Scientific’s C1P Associate Editor By Robert L. Elm MARY ANN CURTIS AN ATARI ASSEMBLER Art Director GARY W.
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