Micro 6502 - Issue 41 - October 1981

• The Radio Shack Color Computer - Features of this versatile 6809-based computer are highlighted
• Applesoft Mystery Parameter - An undocumented "booby trap" in Applesoft it utilized
• 6522-Based Pot Position Digitizer - Convert the position of a pot to a number your computer can use
• 6502 Frequency Counter - Make your computer an inexpensive frequency counter
• Step Up to Programmable Motion - Interfacing of a stepper motor to a KIM-1 is outlined
• The 6809 and the S-50 Bus - Who's doingg what in the 6809 world is explained and the S-50 highlighted
• Handling Analog Signals with a Micro - Two techniques are given to handle analog signals
• Interfacing Two 12-Bit A/D Converters to an AIM - Give your computer extra precision
• Solar System Simulation, Part 2 - This geocentric program will print information about six planets
• A Welcome to PET Users
• Commodore ROM Genealogy - Find out about your PET through this history of Commodore configurations
• VIC Light Pen-manship - Expalnation of how a light pen works is presented with demonstration programs
• Substitute Characters - Create your own character set for your PET
• Tamig the Wild Reset - Easily make your old Apple reset key into a control-reset key
• Apple Byte Table - Help for decoding byte values in Apple's memory
• Apple Bits, Part 2 - This part discusses an Integer BASIC program for constructing patters

Micro 6502 - Issue 42 - November 1981

• Precision Programming - Easily write structured programs using BASIC
• Pascal Tutorial, Part 1 - Firts lesson to help you understand UCSD and Pascal
• Auto Line Numbers for OSI Disk Basic - Imitate large computers and make programming easier
• Some Help for KIM, Part 1 - Extend usefullness of KIM memory dump routine
• Lunar Landar - (for the Color Computer) Try to land on the surface of the moon
• Galacti-Cube - Apple game that dares you to escape from cubic maze
• The Game People Buy - Trends in the computer game industry
• Saucer Launch - You against the flying saucers (Atari)
• Othello - Popular board game now for the Apple
• Ultimate Ping Pong for PET - This version of Pong uses character graphics and fast keyboard control
• OS-9 and the 6809: Revolutionary Tools - Highlights of the OS-9, feature, and concepts are discussed
• Apple II Digital Storage Oscilloscope - Easily convert your Apple into an oscilloscope
• Function Generator and Library Manager - Customize your I/O Functions (Apple)
• ASCII Dump for the Apple - Extend "examine memory" routine in Apple's monitor
• Apple Bits, Part 3 - Presentation of giant letters, animation conclude series

Micro 6502 - Issue 43 - December 1981

• Data Collection with Your Micro - Interface allows high-speed sampling and recording
• PET "Listener" - Listen to your PET tapes and have a CB2 sound amplifier
• Watch that Ground Connection - Protect your computer with a properly connected ground
• Proportional Joystick for Atari - Make your own joysticks for five dollars
• Some Help for KIM, Part 2 - A look at the Apple Pascal Filer
• Flags and Boolean Algebra in Microsoft BASICs - Features to give you powerful program structures
• Recursive Use of GOSUB in Microsoft BASIC - Implementation for OSI, PET, Apple, TRS-80 Color and others
• Applesoft Variable Lister - Use this lister with any program, anywhere in memory
• Applesoft Memory Map Display - Create maps without altering memory contents
• Applesoft Line Finder Routine - Display byts or a particular line, use subroutines available in monitor
• Applesoft and Matrices - Machine language program performs special matrix operations

Micro 6502 - Issue 44 - January 1982

• Atari 800 Player/Missile Graphics - New applications and utility programs
• Experimenters and the Color Computer - A look at the TRS-80C's capabilities
• Epson MX80 Interface for SYM-1 - A description of the hardware and software needed for a parallel interface
• List Scroller - Scroll forward or backward without keyed LIST commands
• Some Help for KIM, Part 3 - Hardware and software for an improved single-step function
• Pascal Tutorial, Part 3 - Programming Pascal vs. BASIC
• RELOC - Easily edit BASIC text files
• Apple Pascal Textfile Lister - Produce neatly paged output with titles and numbered pages
• Elementary Pascal Internals - Introduction to internal structure of P-machine and P-code implementations
• KEYSORT for BASIC 4.0 - An update to a powerful PET utility
• A Disk Menu Program - An elegant but short disk directory management program
• Auto-Run-Wedge for the PET - Avoid extra keystrokes
• PET VET - Review of Pascals for PET/CBM
• From Here to Atari - More on using the interrupts
• The Single Life - The single board's place in a world of sophisticated computers

Micro 6502 - Issue 45 - February 1982

• Utilities for the Color Computer - Dump or disassemble 6809 or ASCII code anywhere in memory
• Formatting AIM Assembler Listings - This program uses a PL/65 approach
• Superboard Expansion System - Double memory and increase capabilities of C1P and Superboard II
• Using Atari's Countdown Timers - Use timers with BASIC and Assembly Language programs
• Speedy Routine for C1P Joystick - Take "slow motion" out of your real-time games
• Credit Box Creator - Clever techniques to aid your programming
• RUNZMENU - Eliminate task of rebooting DOS upon language card reset
• Shape Manipulate - Create, delete, add shapes from tables
• A FORTHword - A bried history and discussion of features of FORTH
• Using FORTH with the 6502 - Three applications to utilize the power of FORTH
• Stepper Motor Control: A FORTH Approach - Command language in FORTH controls movement
• Life in FORTH and BASIC - Compare and learn from two languages
• PET Vet - High-level languages on SuperPET
• From Here to Atari - A look at DOS file structure and the floppy disk system
• The Single Life - A FORTH vendor is spotlighted

Micro 6502 - Issue 46 - March 1982

• VisiCalc Formulas for Depreciation - Ready-to-use formulas provide three methods of depreciation
• Numerical Solution of Differential Equations - Runge-Kutta method and Applesoft program help you solve equations
• Legrange Interpolating Polynomial - This helpful routine will run on any machine with floating point BASIC
• SIN(X) The Hard Way - Learn how the in-ROM machine language routing works
• A Cross Reference Generator for OSI BASIC - Find any variable or line number in your OSI BASIC program
• More Hooks into OSI BASIC - Add keywords to BASIC under OS-65D v3.2
• Microsoft BASIC-in-ROM Extensions - PRINT AT and CALL functions are added to BASIC-in-ROM
• Machine Language to DATA Statement Generator - This handy routine can be applied to all OSI BASIC-in-ROM machines
• Autonumber Plus for Cursor Control - Add automatic line numbering and PRINT AT to your cursor control program
• KIM Bouncy Keypad Cure - The 94-bye program prolongs the life of your bouncy keypad
• Binary Storage and Array Retrieval - A technique for extremely fast I/O of arrays on disk is presented
• A Disassembler for the 6809 - This disassembler is written in Microsoft BASIC and will run on the Apple II or the Radio Shack Color Computer
• PET Audible Disk Alarm - This simple enhancement sounds an alarm when a disk error occurs
• I/O Expansion for AIM - Add two VIAs to trible I/O capacity

Micro 6502 - Issue 47 - April 1982

• AIM User Device Arbiter - Expand the AIM's I/O ports
• General Purpose Tape I/O for OSI - Flexible cassette LOAD and SAVEfunctions are provided
• A Real Tape Operating System - Get the most out of Commodore's reliable system
• COPCOP Single Drive Copier - Copy OSI diskettes quickly and easily
• Vortax Interface for SYM - Easily interface this speech synthesizer to your system's VIA
• 6508 - A New 6502 Configuration - Package includes processor, I/O, RAM and other features
• Programmable Reverse Video for the C1P - Add this handy feature to your C1P with programming and circuitry
• Structured Programming in BASIC09 - Combine the benefits of structured programming and user interaction
• Extension to the C-Bug Monitor - Debugging functions are added to this ML monitor for the Color Computer
• Multiprecision Addition - A Comparison of 6809 and 6502 Programming
• FLEX: An Operating System for the 6809 - FELX's history, features and applications are discussed
• 7SEG: PET Giant Character Set - Alpha-numeric characters on seven-segment display
• Applesoft Variable Dump - This debugging utility provides a dump of current variable array values
• Integer Cross-Reference Utilities - Generate a complete cross-reference table for Apple Integer BASIC programs

Micro 6502 - Issue 48 - May 1982

• Memory Map Relocator - Use this handy program to prevent your programs from being overwritten
• General BASIC to Machine Language Interface - Allow better communication between BASIC and machine language
• LISZT with Strings - Turn Applesoft listings into easy-to-understand structured formats
• Apple Graphics for Okidata Microline 80 - Dump Apple hi-res screen graphics to Okidata printer
• Commodore and MICRO
• PET Memory Protector - Isolate 1K or more of memory from BASIC and resets
• Growing Knowledge Trees - Artificial intelligence represented in tree diagrams
• PET Menu and Tape Timer - Advanced cassette control, extensive use of WAIT command
• PET Vet - PET SCREEN editing
• From Here to Atari - "Front Jacks" on the Atari 400 and 800
• The Single Life - HDE Disk BASIC

Micro 6502 - Issue 49 - June 1982

• Disk to Tape Backup Utility - Save money by using cassette tapes for backup
• AIM User Function Dispatch - Overcome AIM's limitation of three user-definable keys
• Add a VIA and Speech Synthesizer to the Color Computer - Add 8-bit bidirectional I/O ports to your Color Computer
• A Sequential File Handler for a Disk-Based OSI - This file handler written in BASIC and easily implemented
• Face Synthesizer for PET - Create an animated face on the PET's screen
• A Low-Cost Digitizer for the Apple - Use a sheet of plastic to built this digitizer
• AIM Logic Trainer - Test logic circuits and control I/O with this program
• A Versatile Disk Label Printer - Print different kinds of labels for one and two sided disks
• Program for Inverting a Matrix - Handy routine for math and statistical programs
• BASIC, FORTH, and RPL - Two established languages are compared to a newcomer, RPL
• Tiny PILOT for the PET - A machine language PILOT with screen editing
• Microcomputer Interfacing: FORTH vs. BASIC - Programs to control a digitizer interface are compared
• PRINT AT for OSI Systems - Routine for C1P, C4P, and C8P, plus hex object loader
• Symbol Table Lister for the OSI - List symbol table generated by the C1P assembler

Micro 6502 - Issue 50 - July 1982

• Rewriting PET ROMs - Eliminate bugs and add improvements by rewritting your operating system
• Timing and Counting with the 6522 - Perform precision timing tasks with the Versatile Interface Adapter
• An Overview of Apple DOS - Learn how to manipulate and modify DOS
• Converting Apple Pictures to a Standart Bit-Mapped Format - Transfer Apple hi-res screens to Visibile Memory on the PET
• PET Communicates with Apple - Use the Apple's cassette port to transport data
• Apple Disk Sector Map Utility - Determine actual sector allocation
• Build an Apple Cart - An inexpensive way to build a home for your Apple
• Low-Resolution Graphics and Apple Pascal - Access Apple's lo-res capabilitiess from Apple Pascal
• Computer-Assisted Translation of Program from 6502 - 6809 - Translating techniques
• Auto Entry for the C1P - Easy keyboard entry for machine language programs
• TAPDUP - AIM Tape Copy Utilitiy - Backup your cassettes by controlling two recorders at the same time
• Apple Slices - A method to pass parameters between BASIC and machine language
• PET Vet - Review of POWER, a flexibile utility package

Micro 6502 - Issue 51 - August 1982

• Structured Programming in 6502 Assembly Language - Add high-level, structured techniques to your assemble-language programming
• Pattern-Matching with the 6502 on the Apple - Presents both elementary and advanced patern-matchin algorithms
• Random Number Generator in Machine Language for the Apple - A simple subroutine for the Apple
• A New Character Set for the VIC-20 - Design your own VIC characters
• Data Transfer from AIM to PET - Send data and programs from the AIM to the PET through a simple cable
• PET to AIM Download - Use the PET to develop programs for simpler systems
• Expanding File Cabinet for the Apple - Access File Cabinet for use with other programs
• Duty Cycle Monitor for the VIC-20 - Determine the correct volume level for reliable recording of cassette tapes
• Interfacing the Color Computer - Send and receive Morse code
• POWER-Aid for the PET - Add commands to Professional Software's BASIC programming utility, POWER
• SURCHANGE for OSI - SEARCH / CHANGE for OSI BASIC-in-ROM machines
• ON ERROR GOTO for OSI ROM BASIC - A utility to trap errors without stopping program execution
• Straight Forward Garbage Collection for the Apple - An Apple-based linear garbage collection program
• OSI Extended I/O Processor - Ad more than thirty new functions to the OSI C1P
• Delete on the OSI - Omit on or more lines with only a few keystrokes

Micro 6502 - Issue 52 - September 1982

• The 68000 and the Personal Computer - The 68000 as an add-on to 6502-based systems
• An MC68000 Overview - A description of the 68000's registers, instruction set, and addressing modes
• 68000 Instruction Set - Part 1 in a series on the 68000, including a detailed table of Data Movements
• Superimposing TV Pictures on PET Video - Modify the PET to superimpose a television camera picture on the PET video display
• A/D Conversion Using a 555 Timer IC - This simple 555 timer yields a high dynamic range inexpensively
• Delayed Reset and Autoboot for the OSI - Add both a time delay to the BREAK key, and an automatic disk system bootup
• 6809 Macros for Structured Programming - Use assembler macros for structured assembly language programming
• Market Projection Program for the Color Computer - A sophisticated business program to project industry and company sales
• Double-Entry Formatting for your Checkbook on the C1P - A simple checkbook balancing program
• Auto SAVE for the PET - A routine for automatic cassette backup
• COMPRESS - An Applesoft Optimizet - Reduce Applesoft program memory requirements by up to 30%
• Apple Slices - "Hashing" ... A quick random-access technique
• PET Vet - The MAE assembler and new Commodore-oriented publications

Micro 6502 - Issue 53 - October 1982

• Introduction to Turtle Graphics in Apple Pascal - Dump Pascal Turtle Graphics to a printer
• Three Faces of Apple LOGO - Different approaches to an educational programming language
• Mircocomputers in a College Teaching Laboratory - Part 1 - An overview of microcomputer use in an undergraduate lbaoratory program
• A Personal Computer for Untrained Users - Strategies for creating crash-proof BASIC programs
• Machine-Language Screen Utilities for the CBM-8032 - Screen formatting and easy cursor positioning
• Auto Graph for the Apple - Using an EXEC file to self-modify a BASIC program
• Screen Editor for the OSI 65D Assembler - Add this convenient editing capability to your assembler
• Formatted Output with Atari BASIC - Print-using for the Atari
• Building a Parallel Printer Interface - A general discussion with details on a C1P to C1P interface
• The IBM Selectric as as OSI System Printer - A cheap letter quality printer
• A Homespun 32K Color Computer - Expand your 16k TRS-80C to 32K bytes of RAM memory
• Apple Pascal P-Code Interpreter and the 6809 - A comparision of P-Code efficiency between 6502 and 6809 computers
• Atari Character Graphics from BASIC, Part 1 - A technique to use character-mode display graphics
• Apple Slices - Run the Pascal assembler under DOS 3.3
• PET Vet - A better BASIC - Waterloo microBASIC on the SuperPET

Micro 6502 - Issue 54 - November 1982

Game Features

• Castle Adventur for PET and Apple
• SYM 23 Matches
• Solve the Pagoda Puzzle Using Recursive Assembly
• VIC/PET GOMOKU
• Number Shuffle on the Atari
• Sensible Use of Apple Game Paddles
• Space Invasion for OSI C1P/Superboard
• Apple Shootdown

Hardware

• Atari Joysticks on the OSI - A simple modification including software and programming information
• An MC68000 Overview, Part 2 - Simple examples illustrate 68000 programming techniques
• A Monitor for the TRS-80 Color Computer - Instructions to get composite video from the video section of the CC
• FLEX and the TRS-80 Color Computer - A description of FLEX09
• 68000 Binary Arithmetic Operations
• How to Make a Graphic-80 PET from a 4016 - Just add inexpensive ICs and move jumpers

Graphics

• Apple Hi-Res Graphics and Memory Use - Avoid overwriting the graphics display area
• Atari Character Graphics from BASIC, Part 2 - Learn about fine scrolling
• Getting Around the Apple Hi-Res Graphics Page - Utilize the graphics area without sacrificing memory
• Extra Colors for the Atari - Two techniques to expand your computer's palette
• Introduction to 3-D Rotation on the Apple - Learn the techniques for yaw, pitch, and roll

Micro 6502 - Issue 55 - December 1982

Commodore Feature

• It's All Relative - CBM Disk Techniques, Part 1 - Get the most from CBM's powerful disk operating systyem
• Squeeze for PET Programs - Squeeze out imbedded blank, line seperators, and comments
• BASIC Line Delete for PET/CBM and VIC - A machine language program to delete blocks of BASIC lines
• SOUP: A CBM Machine-Language Compare Program - A compare program for machine-language program files
• Microcomputers in a College Teaching Laboratory, Part 2

BASIC AIDS

• Apple ILISZT for Integer BASIC Programs - Print your program in a clear, structured format and detect embedded binary code
• BASIC Macro Function for Cursor Control on the OSI - Insert statements with just two keys
• Atari Character Graphics from BASIC, Part 3 - Add to Atari's vertical blank interrupt routines
• Applesoft GOTO/GOSUB Checking Routine - Verify all GOTO and GOSUB references in your program

HARDWARE

• Adding Voice to a Computer - A low-cost procedure for sampling and reproducing voice
• Enhanced Video for OSI C1P - Add five chips - and several features
• Home Control Interface for C1P - Add you own ultasonic control
• Atari Meets the BSR X-10 - Use Atari's controller ports
• 68000 Logic Instructions - Our discussion of the 68000 instruction set continues
• Programmable Character Generator for OSI - Design your own character set
• Utilizing the 6502's Undefined Operation Codes - Hardware to use these op codes for new psuedo-instructions

Micro 6502 - Issue 56 - January 1983

• Discrete Even Simulation in Pascal - Simulate real-world simulations
• Doing Time on the 6809 - Add time in BASIC
• Model Rocket Simulation in BASIC - Determine the altitude performance of single-stage model rockets
• Sun and Moon on the Apple - Hi-res graphics simulation: the orbits of the sun and moon
• Microcomputers in a College Teaching Laboratory, Part 3
• Measurement of a 35mm Focal Plane Shutter - Use inexpensive hardware to measure the accuracy of your camera
• It's All Relative - Using CBM's Relative Records, Part 2 - Learn how to set up relative files and records
• VIC Hi-Res Graphics Explained - Produce 160 by 176 dot graphics
• 68000 Shift, Roate, and Bit Manipulation Instructions - More detailed coverage of the 68000
• Extending Newton-Raphson's Method to Evaluate Complex Roots
• Signed Binary Multiplication is Unsigned - Put this mathmatical curiosity to work
• Apple Math Editor - Easy construction, editing, and printing of mathematical formulas
• Using Long Integers for BCD Numbers in Pascal - Bullet-proof string conversion

Micro 6502 - Issue 57 - February 1983

• SuperPET APL - An unusual, but powerful, fast, and memory-efficient language
• EDIT: An Atari FORTH Screen-Oriented Editor - A big improvement over the APX line editors
• Apple Pascal Hi-Res Screen Dump - Dump the high-resolution graphics screen to your printer
• An Introduction to FORTH - All about Reverse Polish Notation, colon definitions, and other FORTH features
• FORTH for the 6809 - A look at CCFORTH, figFORTH, and several FLEX-based systems
• The World According to LISP - A power language suited to robotics and artificial intelligence
• Improved IEEE-488 Control for the PET/CBM - More precise control of the bus, without using logical files
• VIC RS-232 Printer - Interface the Radio Shack Quick Printer and other RS-232 devices
• PROM BASIC for the C1P - Increase the C1P's performance without a disk drive
• Indirect Files Under OS-65D - Use the indirect file merge programs, perform warm starts, transfer programs
• It's All Relative, Using Commodore's Relative Records - Part 3 - Use a key file as an index into a relative file
• A Binary Search Routine - Two demonstration programs illustrate this technique
• BASIC Renumber for OSI - Renumber programs in memory and save to tape
• 68000 Program Control: Branch and Jump Instructions

Micro 6502 - Issue 58 - March 1983

• Hi-Res Plotting with the VIC - Combine VIC-1515/1525 printer with the VIC-20 for high-resolution graphics
• Print Control for Apple Printers - A shorth subroutine for automatic pagination and user-selectable margins
• Centronics Printer Driver for Your Microcomputer - an MX-Driver assemble language program
• Disk ID for Printed OSI Directories - Put unused disk space to good use
• Apple PRINT-USING Routine - a machine language routine for formatted output
• A Full Byte for Your Apple Printer - Greater control using the eighth bit
• MICRO Calc for Commodore and Apple - A miniature electronic spreadsheet
• Digi-Draft for Atari 400/800 - A sophisticated drawing program
• The Computer Revolution Reaches the Community
• BANNER: A Display Program for the Color Computer
• 68000 BCD and Privileged Instructions
• A Versatile Hi-Res Graphics Routine for the Apple
• Apple Disk Track Copy for Non-Matching Numbers
• It's All Relative, Part 4 Using Commodore's Relative Records - Read and write relative files

Micro 6502 - Issue 59 - April 1983

• Communications:  The Growing Network
• A Not-So-Dumb Terminal Program for the SuperPET - Turn the SuperPet into a smart terminal for a mainframe
• Dialing the Networks - A MC6809 communicates with the major networks
• A Home-Built Communications Interface - Circuitry and techniques for construction
• PET-to-PET Communications - Transfer an array over the User Port
• Multi-Microprocessor Tidbits - Run a 6502 and 6809 on the same computer - simultaneously
• MASTER for VIC and Commodore 64 - A serious look at a simple guessing game
• Conservation of Momentum for Atari and Commodore - An Introductory physics demonstration
• Is a Number a Number? - Convert Numbers from one base to another
• A Begginer's Computer Glossary, Part 2

Micro 6502 - Issue 60 - May 1983

• The ATARI 1200XL - A comparison of the Atari 1200XL, 800 and 400 computers
• Microprocessors for Your Apple II - A comparison of add-on boards for the Apple II
• COMMODORE New Wave - A discussion of Commodore's new product line
• Is 16 Bits the Solution? - Can 8-bit technology survive in the small computer market?
• Get More Data on Your CBM Disk - Write up to four times more numerical data on disk using binary format
• Parameter Passing in Assembly Language, Part I - Pass data to and from assembly language subroutines
• Real-time Clock for the Color Computer - Add a real-time clock and date function to your programs
• &GET on the Apple - A machine-language program to allow customized input routines
• Modifying and Using MAE on the PET - Modifications allow output to an ASCII printer and listing output to a disk file
• 68000 Instructions - Miscellaneous instructions implemented on the 68000
• It's All Relative, Part 5: Printing Commodore File Data - How to format and print data from Commodore relative disk files
• Breakup - A simple animation game that demonstrates PEEKs and POKEs
• Addressfile - A file-management system for the VIC-20 and other Commodore computers
• Apple Graphics for Okidata Microline 80: Revisited - Print Apple II hi-res graphics screens on an Okidata Microline 80 printer
• A Universal Printer Pager for Apple - Automatically produce top and bottom margins on each page of printer output
• Second PET as Soft Printer - Address a second PET as IEEE Device 4
• MULTIC - A Multi-Column Print for AIM - Print AIM listings the full width of your printer
• Superboard II / Quick Printer II - An inexpensive way to interface the OSI Superboard II to a RS Quick Printer II
• PET VET - Load-and-Run programming
• From Here to Atari - Drawing geometric shapes
• CoCo Bits - A look at the TDP 100, modems, and service manuals
• Interface Clinic - Experiments in interfacing