1978 - Ipso Facto 4 to 9

Ipso Facto Issue 4

  • Outline of a Text Editor
  • Economical Hex Display
  • A Monitor for ASCII Keyboard and Display
  • Memory Mapped I/O
  • +/- 12 Volts on Tekatch Bus
  • Memory Test Routine
  • Other Club Newsletters
  • Random Number Generation
  • ROM Out of RAM
  • Another Keyboard Approach
  •  Interrupt Processing on the 1802
  • Errata: Tape Test Routine
  • TEC-Editor Disassembled
  • Some Notes on Connecting an 1861 to a TV

Ipso Facto Issue 5

  • Hardware Paper Tape Loader
  • Is Your Microcomputer S100 Compatible?
  • Logic Tester
  • A Single Cycle Circuit for the 1802
  • A Fine Resolution Audio Oscillator Program
  • Certifying Audio Tape for Digital User
  • A Coin Toss Program
  • Magnetic Tape Data Recording
  • A Simple 25 IC, 2 Transistor Code Practice Oscillator
  • Hex-Decimal Conversion and ASCII
  • Items For Sale
  • A Disassembly of Ed McCormick’s Monitor
  • A Note of Caution from Ed McCormick
  • The 1802 Music Machine
  • An RS-232C Interface
  • Errata: Memory Mapped I/O
  • Errata: 1802 Interrupt Processing
  • TEC-1802 Speed Considerations
  • A Low Cost 8 Digit Hex Display
  • Using the 8 Digit Hex Display

Ipso Facto Issue 6

  • A Software Standard for Kansas City Standard Tapes
  • Abstracts from Dr. Dobb’s Journal
  • A Game of Life for the 1802
  • A CMOS 16x32 Video Display
  • Build a 1K Video RAM
  • Reply from Netronics Ltd. President
  • An Extra Page of ELF Memory
  •  Instant Editor
  • Interfacing a Baudot Teletype to an 1802
  • A Mouse Trap Game for Pixie Graphics
  • The 1802 Programmer’s Notebook
  • Errata
  • An 1802 RAM System
  • Combination Lock and Door Chime
  • A Different Cassette I/O Routine
  • Winning Ticket Draw Program

Ipso Facto Issue 7

  • Tapeworm Anyone?
  • High-Low Game
  • Errata
  • Is it a Keyboard?
  • Electronic Metronome
  • 1802 Opcode Table
  • Hangman Program
  • Tiny Basic on the VIP System
  • 1802 State Indicator
  • Copy Memory Routine
  • Microcomputer Interfacing
  • 1802 Manual Debugger
  • An 1802 Disassembler
  • A Tiny Basic Square Root Routine

Ipso Facto Issue 8

  • Mouse Trap Game
  • Binary Quiz Program
  • VIP Software Update
  • State Display
  • Software for CMOS 16x32 Video System
  • The Three Keyboard Problem
  • Programmer’s Zodiac
  • An RCA CDP1802 System
  • Software for 1K Video RAM
  • Variation on a Theme
  • Tiny Basic Square Root Routine Version 2
  • Fast Memory Test
  • An 1802 DMA Controller
  • Program for Fast Memory Test
  • Schematic for 1802 DMA Controller
  • Memory Page Decoders
  • Logic Probe
  • Software for the Ipso Facto Standard for KC Tapes
  • A/D Notes
  • Christmas Computer Music
  • Hardware Basics
  • Game of Life Update
  • ACE Tutorial
  • Diagrams for Game of Life Update

Ipso Facto Issue 9

  • Some Thoughts on the Call and Return Technique
  • COSMAC ELF Reference
  • Automatic Program Counter Stepper
  • Notes on Netronics Tiny Basic
  • Some ELF II Enhancements
  • Some Simple 1802 Programs
  • Programming the DM8577 (32x8) PROM
  • Ping Pong
  • ACE Tutorial
  • Fix for 1861 Display Jitter
  • Radio Shack Keyboard Enhancement
  • New Basic for COSMAC 1802 Available
  • Netronics Monitor Disassembled
  • Partial Display Routines for ELF Systems
  • Interesting Computer Articles
  • Errata
  • Running Ipso Facto Cassette Software on the ELF
  • Netronics Giant Board Notes
  • Studio II Conversion Kit
  • Tic-Tac-Toe with the 1802
  • Key In Loader For ELF II Format Files
  • Life for an ELF
© Dave Ruske 2001-2017, except where noted