A complete sprite animation toolkit with a built-in UDG editor, machine code movement engine, and self-shortening save routine — all packed into one BASIC program.
computer_media, orig pub: 06.18.23, updated: 04.04.26
A utility that embeds an entire hi-res graphics screen inside a BASIC program's REM statement for archival, with Upload, Download, Invert, and Display functions driven by machine code.
computer_media, orig pub: 07.29.23, updated: 04.04.26
Design and install custom nine-level dungeons into an existing game using this maze editor that patches mazes directly via machine code and SRAM.
computer_media, orig pub: 07.29.23, updated: 04.04.26
A two-player Nim strategy game squeezed into 2K of RAM, using direct display-file POKEs and constant caching to animate seven rows of tokens.
computer_media, orig pub: 07.30.23, updated: 04.04.26
NFLX Football, Miner's Revenge, Super Slide, and Storm Lander 3.
computer_media, orig pub: 07.30.23, updated: 04.04.26
A machine-code-powered Spirograph simulator lets you define gear sizes and pen position, then watch intricate parametric curves build on-screen in three selectable display modes.
computer_media, orig pub: 07.30.23, updated: 04.04.26
A full data acquisition suite for a voltage-to-frequency converter peripheral, featuring calibrated sampling, multi-file hi-res plotting, and tabular printout all in one program.
computer_media, orig pub: 07.30.23, updated: 04.04.26
Sail the HMS Seawitch across six treasure-filled maps, managing crew, food, and hull damage in this split-load sailing adventure with custom high-resolution sprites.
computer_media, orig pub: 07.30.23, updated: 04.04.26
Populate a toroidal ocean world with fish and sharks in this machine-code-powered predator-prey simulator based on a famous Scientific American article.
computer_media, orig pub: 07.30.23, updated: 04.04.26
A full-featured bitmap paint program with machine code at its core, supporting freehand drawing, lines, rectangles, custom tile patterns, and hardcopy output via an external hardware interface.
computer_media, orig pub: 07.30.23, updated: 04.04.26
A terminal emulator installer that patches machine code for eight printer interfaces, configures UART parameters, and optionally relocates the entire communications package in memory.
computer_media, orig pub: 07.30.23, updated: 04.04.26
A multi-font toolkit delivering bold, gothic, fancy, and even proportional high-resolution typefaces, all loaded via BASIC.
computer_media, orig pub: 07.31.23, updated: 04.04.26
A practical coupon-organizer program that stores up to 180 coupons across 18 product categories, with machine code tricks for fast display and search-by-store functionality.
computer_media, orig pub: 08.05.23, updated: 04.04.26
A fully featured backgammon game with a four-level AI opponent, doubling cube, gammon scoring, and animated dice — all driven by embedded machine code routines.
computer_media, orig pub: 08.06.23, updated: 04.04.26
A home budget tracker managing 18 spending categories with machine code display routines, tape persistence, and real-time budget-versus-actual balance calculations.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A character-based freehand drawing tool with eight-direction movement, inverse-video toggling, random pattern fills, and machine code speed control built right in.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Guide your character through a minefield arena, luring eight relentless pursuers to their doom before they corner you in this tense compass-bearing chase game.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Navigate a block-graphics maze using three-move strings while six tactical gadgets and increasingly numerous enemies keep every turn tense.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A complete music theory lesson covering treble clef notes, note types, and beat values, with three scored quizzes and a letter-grade summary built entirely in BASIC.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A household valuables tracker that uses free-memory calculation, packed index strings, and a machine code search routine to manage up to 255 asset records.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A multi-module home renovation calculator that estimates carpet yardage, paint gallons, and wallpaper rolls — and even lets you sketch a floor plan — all from a single saved program.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A five-mode mortgage amortization tool that pre-calculates every monthly payment into a lookup array and offers reports from single-payment detail to a graphical interest/principal plot.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Enter beta and risk figures for up to 10 securities and this program computes the minimum non-market-risk portfolio and plots the efficient frontier.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Four programs in one pack: a scrolling logo display, an auto-scaling bar chart generator, a 10-slot memory calculator, and a live equation plotter.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Test your knowledge of U.S. presidents and their terms in this two-mode quiz that tracks your score and calculates a final percentage.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Navigate a treacherous park maze while surviving seven deadly mini-game encounters — each one using clever screen memory tricks to animate and detect your fate.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full Pascal compiler packed almost entirely into a single REM statement, transferring control to machine code via USR to compile and run Pascal programs.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full-featured time-value-of-money calculator that solves for N, I, PMT, PV, or FV across five financial program types, complete with amortization schedules and an animated dollar-sign title sequence.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full philatelic inventory system lets you log stamps by Scott number and condition, adjust quantities, flag wanted items, and save your collection to tape.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A multi-round maze runner with machine code movement, 26 skill levels, high-score initials entry, and fully remappable keys — all bootstrapped from hex strings in BASIC.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A two-mode financial calculator that models rent-versus-buy decisions and investment property returns, complete with after-tax cash flows, IRR computation, and a plotted appreciation-rate chart.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A four-volume spelling quiz challenges you to spot the misspelled word in each group of five, then type the correct spelling — and tracks your progress across sessions.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Two programs: a data-entry histogram plotter with mean and median display, plus a randomized arithmetic quiz with selectable operation and difficulty level.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Dive into an underwater quest to recover a lost trident, powered by a bytecode-driven engine that encodes conditions, actions, and room exits as packed character codes in string arrays.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A sliding tile puzzle where you alphabetically arrange 15 lettered tiles by pressing letter keys — and can shift multiple tiles at once toward the blank space.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A complete two-module Tarot reading suite that deals an 11-card Celtic Cross spread and displays ASCII art illustrations of all 78 cards with their traditional interpretations.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Two casino games in one package — a full-featured Blackjack dealer with double-down and six-card bonus, plus an animated slot machine with 14 payline combinations and a 1000× jackpot.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A machine-code-powered flat-file database lets you define record layouts, enter and search data, and save or print your records with a four-option menu.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Two sliding-block puzzle variants challenge you to rearrange variable-width pieces to match a solution, with a password lock system to protect saved progress.
computer_media, orig pub: 08.13.23, updated: 04.04.26
This covered call analyzer computes exercised and unexercised ROI, annualized returns, break-even price, and last trading day using pure-BASIC Julian date arithmetic.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A two-player (or solo vs. AI) football strategy game with animated formations, play-calling menus, and a full scoring system including touchdowns, safeties, and field goals.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A four-operation math drill that scales difficulty with a cubic formula, right-justifies problems on screen, and awards letter grades after ten questions.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Navigate a first-person 3-D maze rendered entirely by machine code routines, with optional compass, trap doors, and gold bars to collect before you escape.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Defend the planet Tai from imperial invaders in this machine-code maze shooter, where the entire game engine hides inside a single REM statement.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Trade stocks in eight fictional companies across multiple simulated weeks, managing loans and credit ratings while chasing a $50,000 winning threshold.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A six-stock technical analysis suite that tracks price and volume across 30 weeks, plots moving averages, and scores trend momentum to flash BUY or SELL signals.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full-featured database manager with machine code at its core, handling record entry, search, sorting, printing, and cassette save through a BASIC menu shell.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A nine-function word processor with search, replace, move, delete, and paginated printing, all driven by a BASIC menu shell over a machine code engine.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full spreadsheet application packed into REM statement machine code, with a BASIC menu for entering, continuing, and saving your data to tape.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full Z80 disassembler packed into a single REM statement — enter any memory address and watch raw machine code decode into assembly mnemonics instantly.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A complete FORTH language interpreter delivered as machine code hidden inside a single REM statement, launched with just one BASIC command.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Guide your survivor across a zombie-infested island grid, luring blind monsters into potholes using eight-directional movement before they track you down by heartbeat.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full chess engine packed into machine code within REM statements, offering six skill levels, color selection, and mid-game position analysis — all launched from a two-line BASIC stub.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A complete Z80 assembler packed into a single REM statement, supporting the full Z80 instruction set including IX/IY indexed addressing and bit manipulation opcodes.
computer_media, orig pub: 08.13.23, updated: 04.04.26
A full manufacturing cost and bill-of-materials system that stores 150 part records, rolls up labor, material, and overhead costs, and supports both BOM explosion and implosion.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Dive underwater to rescue a submarine's crew, dodge patrolling sharks, and manage your oxygen in this machine-code-enhanced action game with 37 taunting end-game messages.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Two brain-teasing games in one: master a Nim-style chocolate truffle showdown, then crack a randomly shifted Caesar cipher as a superspy operative.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Three games in one package — Bingo caller, ten-pin bowling simulator, and a sci-fi Mastermind clone — each with animated graphics and machine code routines.
computer_media, orig pub: 08.15.23, updated: 04.04.26
An interactive five-lesson guitar tutor that renders fretboard diagrams in character graphics and drills you through chords, bar chords, and progressions.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Enter your home's dimensions, insulation thicknesses, and fuel costs to get a detailed yearly heating bill estimate with fuel-conversion savings comparisons.
computer_media, orig pub: 08.15.23, updated: 04.04.26
A full craps table simulation with block-graphic dice, multiple simultaneous bet types, and casino-accurate payouts — all controlled from the keyboard.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Navigate underground tunnels, battle monsters with timed keypress combat, and manage a six-item inventory in this text adventure to recover the mystical Keys of Gondrun.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Calculate your household's monthly electric bill appliance by appliance, with default wattages, thermostat factors, and a detailed 16-item cost breakdown.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Pilot a spacecraft through five skill levels to blast an alien and its fortress apart, with all game logic driven by machine code packed into REM statements.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Scan the galaxy, lead your target, and fire lasers at enemy ships in this machine-code-driven space shooter with five skill levels and a 25-shot limit.
computer_media, orig pub: 08.15.23, updated: 04.04.26
A two-player Nim game pitting you against a friend, with direct memory POKEs animating stick removal across seven rows of seven matchsticks.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Three complete arcade games in one package, each driven by machine code routines and packed with clever BASIC tricks for graphics, scoring, and input handling.
computer_media, orig pub: 08.15.23, updated: 04.04.26
A dual-mode financial toolkit that calculates loan repayment schedules and savings projections, including a reverse goal-based solver across a range of interest rates.
computer_media, orig pub: 08.15.23, updated: 04.04.26
A three-part financial toolkit that calculates asset depreciation by three methods, compares investment alternatives by present worth, and pinpoints rate of return through iterative narrowing.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Three games in one package: a grid-based memory matcher, a flash-sequence recall challenge, and a configurable Mastermind-style code breaker.
computer_media, orig pub: 08.15.23, updated: 04.04.26
A parallel printer driver installer that relocates Z80 machine code to four possible memory locations and reports USR entry points for LCOPY, LLIST, CLRBUF, and LPRINT.
computer_media, orig pub: 02.20.24, updated: 04.04.26
Spin three reels on a block-graphics slot machine, bet up to $5 a round, and chase three-of-a-kind for a 20-to-1 payout before your $100 runs out.
computer_media, orig pub: 06.13.24, updated: 04.04.26
Five games/programs for the TS1000:
computer_media, orig pub: 07.01.24, updated: 04.04.26
Defend your planet from invisible robot invaders by hitting the right key at the right moment in this tense keyboard-reflex arcade game with block-graphic alien sprites.
computer_media, orig pub: 07.08.24, updated: 04.04.26
A complete Forth interpreter delivered as a two-line BASIC loader that jumps into machine code hidden inside a single REM statement at address 17245.
computer_media, orig pub: 07.15.24, updated: 04.04.26
A three-mode message display suite featuring machine-code-driven billboard scrolling, bidirectional horizontal text rotation, and vertical scrolling with live speed and direction controls.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A practical suite of reusable BASIC modules covering banking, word processing, personal finance, exam analysis, and data storage — all engineered for real-world use.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A passcode-protected processor benchmark that draws a blinking grid of blocks and hands off to machine code to measure CPU speed.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A rich software suite for a TMS9918 color video board add-on, bundling a word processor, 64-column screen driver, pixel graphics engine, and calendar—all with machine code hidden in REM statements.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A light pen driver with Z80 machine code paired with a full Concentration card-matching game — discover how hardware input, USR calls, and grid logic combine.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A self-installing machine code utility that decodes a Z80 hex payload from a BASIC string to supercharge cassette tape operations with verify, chain, and block save/load.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Three tape utilities in one package: display program names from tape headers, save and reload text records, and load a machine code toolkit via direct memory calls.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Three utilities in one tape image: a two-pass Z80 assembler with debugger, a BASIC compiler, and a tool to strip autorun from any loaded program.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A machine code cassette accelerator that pushes tape storage 6–10x faster than normal, with an interactive BASIC loader that patches timing and calibration values before handing off to the resident routine.
computer_media, orig pub: 09.22.24, updated: 04.04.26
A complete checkers game with capture logic, king promotion, and a computer opponent that tries to avoid leaving its pieces vulnerable — all in BASIC.
computer_media, orig pub: 09.28.24, updated: 04.04.26
A REM-based machine code database manager with add, delete, select, and report features hiding almost entirely inside a single program line.
computer_media, orig pub: 11.17.24, updated: 04.04.26
Robotack is an homage to the classic Robotron that features crisp WRX hi-res graphics, ZonX sound, and dedicated joystick support.
computer_media, orig pub: 04.04.26, updated: 04.04.26
ROM for the TMS 9918A Video Upgrade. Second “printer” ROM also on board.
computer_media, orig pub: 07.15.24, updated: 04.04.26
Assembled by Tim Ward from many sources. Contains programs 10252 – 10293.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Assembled by Tim Ward from many sources. Contains programs 10211 – 10251.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Assembled by Tim Ward from many sources. Contains programs 10176 – 10210.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Assembled by Tim Ward from many sources. Contains programs 10122 – 10175.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Assembled by Tim Ward from many sources. Contains programs 10051 – 10121.
computer_media, orig pub: 09.22.24, updated: 04.04.26
Assembled by Tim Ward from many sources. Contains programs 10001 – 10050.
computer_media, orig pub: 09.22.24, updated: 04.04.26
ROM for demonstrators used in stores as selling tools. EPROM contains a BASIC demonstration program that starts on power up.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Mystery 2K EPROM in a Cambridge Microelectronics ROM-81 unit.
computer_media, orig pub: 07.15.24, updated: 04.04.26
A digit-based Mastermind clone where you decode a secret four-digit sequence, with block-graphic scoring markers and a nine-guess limit.
computer_media, orig pub: 10.05.24, updated: 04.04.26
A surprisingly capable mini-spreadsheet with formula cells that can reference other cells by name, evaluated through a clever string-substitution technique.
computer_media, orig pub: 10.05.24, updated: 04.04.26
A two-program parts inventory system combines a full-featured stock manager with a compact companion that packs quantities into a clever two-byte string encoding.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Hot Z-II on EPROM, mounted on a John L. Oliger 2764×2 READ EPROM card.
computer_media, orig pub: 07.15.24, updated: 04.04.26
Hot Z on a John L. Oliger 2764×2 READ EPROM board.
computer_media, orig pub: 07.15.24, updated: 04.04.26
computer_media, orig pub: 09.22.24, updated: 04.04.26
computer_media, orig pub: 09.22.24, updated: 04.04.26
A two-program listing combining a multi-regime pipe flow heat-transfer calculator with Nusselt correlations and a logarithmic curve printer using three nested ranges.
computer_media, orig pub: 11.17.24, updated: 04.04.26
A smooth pixel-by-pixel hardware marquee scroller driven by machine code hidden in a REM statement, with live speed control and custom message entry.
computer_media, orig pub: 10.05.24, updated: 04.04.26
A scrolling chain-saw shooting gallery where you fire upward bullets at inverse-video targets moving in opposite directions — can you rack up the highest score in 10 shots?
computer_media, orig pub: 10.05.24, updated: 04.04.26
A perpetual calendar covering 1801–2399 that highlights your chosen date in inverse video and uses a clever string-based data store to pack day and month names.
computer_media, orig pub: 10.26.24, updated: 04.04.26
A machine code action game where you catch a falling egg and then maneuver a bat into a cage — nearly all logic lives inside a single REM statement.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Guide falling stars into the right column by pressing 1–5, but can you predict their diagonal path before they land?
computer_media, orig pub: 10.05.24, updated: 04.04.26
Plug-in machine language assembler replacement ROM for Sinclair Basic.
computer_media, orig pub: 06.26.23, updated: 04.04.26
Interactive assembler, disassembler and debugger. Assembler checks syntax as you enter Z80 mnemonics and assembles directly to memory.
computer_media, orig pub: 06.09.24, updated: 04.04.26
ZXBUG is a powerful tool for machine language programming. It is 4K long and uses memory from 71E0h to the top memory.
computer_media, orig pub: 08.13.23, updated: 04.04.26
ROM image for the data acquisition and control module with Centronics printer interface.
computer_media, orig pub: 08.13.23, updated: 04.04.26
Pluri-Forth is both an operating system and a programming language, replacing the Sinclair ROM entirely. FORTH programs were compiled and ran about 10 times faster than interpreter BASIC.
computer_media, orig pub: 08.13.23, updated: 04.04.26
computer_media, orig pub: 08.13.23, updated: 04.04.26
computer_media, orig pub: 08.15.23, updated: 04.04.26
A full-featured Z80 disassembler with a menu-driven interface, cross-reference listing, printer support, and configurable relocation displacement — all backed by machine code routines.
computer_media, orig pub: 06.10.24, updated: 04.04.26
A machine code screen-dump utility embedded inside REM statements that drives a Memopak printer interface with a single RAND USR call.
computer_media, orig pub: 06.10.24, updated: 04.04.26
A machine-code bootstrap generator that saves a dual-speed auto-start loader to tape, letting you attach any program for accelerated loading.
computer_media, orig pub: 08.15.23, updated: 04.04.26
A dithering paint program that simulates grayscale shading on a two-color display, driven entirely by Z80 machine code packed into REM statements.
computer_media, orig pub: 08.15.23, updated: 04.04.26
Take the controls in this machine-code-powered combat flight game, featuring block-graphic visuals, printer score output, and a best-score-of-the-day display.
computer_media, orig pub: 08.05.23, updated: 04.04.26
Psion's Chess extended with WRX to display pieces in high resolution.
computer_media, orig pub: 07.29.23, updated: 04.04.26
A two-pass self-installing utility decodes machine code hidden in a REM statement and installs it below RAMTOP so any program's checksum can be verified.
computer_media, orig pub: 07.29.23, updated: 04.04.26
You have to survive an engine failure while flying over an apparently uninhabited island in the South Atlantic. Learn to treat the natives with respect, avoid capture and have the enemy and return with the island secret.
computer_media, orig pub: 06.25.23, updated: 04.04.26
While on reconnaissance in space, your ship has been drawn by a graviton beam towards an alien cruiser.
computer_media, orig pub: 06.25.23, updated: 04.04.26
You are in South America in the jungle, near an as-yet-undisturbed Inca temple. Inside this temple you will find lots of treasure, your aim is to get out with as much treasure as you can.
computer_media, orig pub: 06.25.23, updated: 04.04.26
You are4 stranded on an alien planet. On this planet you will meet various hazards, including aliens, little green men, some natural – some not. Escape this planet by finding your captured and disabled space ship.
computer_media, orig pub: 06.25.23, updated: 04.04.26
Embed machine code inside a REM statement to drive a four-direction scrolling checkerboard display, controlled by the standard cursor keys.
computer_media, orig pub: 09.22.24, updated: 04.03.26
Tetris clone for the ZX81 written in Z80 using VSCode, SjASMPlus & Dezog.
computer_media, orig pub: 05.31.25, updated: 04.03.26
Integrated assembler and monitor with a purpose-built code editor, label support, hex/decimal entry, and built-in debugging subroutines for machine code development.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A full machine code BASIC extension packed into REM statements adds high-resolution graphics commands, a 64-column display mode, and enhanced tape routines to your system.
computer_media, orig pub: 07.30.23, updated: 04.03.26
A full pinball game packed into a REM statement — machine code launches directly from BASIC in this compact arcade title.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine code utility that stores, merges, and renumbers BASIC program segments using empty REM statements as markers — all from a single USR call.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine-code drawing suite hidden inside a single REM statement, offering pencil, brush, shapes, flood fill, pattern editing, and adjustable cursor speed from layered menus.
computer_media, orig pub: 08.13.23, updated: 04.03.26
Enter paired X/Y data points one at a time and get live-updating standard deviation, mean, regression slope, Y-intercept, and trend line equation.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A two-player naval battle game built around a machine code engine, with an elaborate block-graphic title screen and a rank-based scoring table embedded in its REM statements.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A shoot-em-up where missing shots speeds up time itself — destroy alien stations dead-center to slow the clock and survive.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine code game hidden inside a REM statement launches via a USR call, complete with a block-graphic title screen spelling out "TRAP."
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine-code shoot-em-up blasting through enemy defense zones, with a BASIC shell managing scores, high scores, speed selection, and joystick or keyboard control.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A full Galaxians arcade clone packed almost entirely into a single REM statement, launching its machine code engine with just one RAND USR call.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine-code-driven word processor with auto-justify toggling, file save/load, scrollable review, and a full help screen — all controlled through a nine-option menu.
computer_media, orig pub: 02.20.24, updated: 04.03.26
A machine code screen-region tool that lets you instantly clear any rectangular portion of the display by specifying start and stop rows and columns.
computer_media, orig pub: 06.10.24, updated: 04.03.26
A machine code scroll routine lets this chatty demo program print text in screen sub-regions while keeping other areas visible — and it even does arithmetic for you.
computer_media, orig pub: 09.22.24, updated: 04.03.26
A three-level Space Invaders-style game that uses a clever POKE formula to set difficulty before handing control to machine code.
computer_media, orig pub: 11.17.24, updated: 04.03.26
Take control of a night-time gun emplacement in this machine-code-powered shooter that packs dense graphics and a high-score table into a compact BASIC loader.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine-code space shooter that hides its entire game engine inside a REM statement, using clever memory checks and USR calls to bootstrap itself into action.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A sprawling two-part text adventure with item tracking, a spike-door timing minigame, and a hand-rolled two-word command parser that challenges you to defeat an evil ruler.
computer_media, orig pub: 06.18.23, updated: 04.03.26
A fully interactive configuration utility patches a Centronics printer driver in machine code, letting you choose your printer model, interface, column width, and linefeed behavior before saving a custom binary to tape.
computer_media, orig pub: 06.18.23, updated: 04.03.26
A full-featured disk operating system that intercepts BASIC errors to add disk commands, NMI STATE saves, multi-printer screen dumps, and dual-ROM compatibility.
computer_media, orig pub: 06.18.23, updated: 04.03.26
A powerful eight-function programmer's toolkit combining a Z80 disassembler, tri-base calculator, UDG editor, tape header reader, and memory loader in one cartridge-based package.
computer_media, orig pub: 06.18.23, updated: 04.03.26
A compact display demo cycles through all eight paper colors, prints the full character set in normal and inverse video, then draws grids and triple circles using PLOT, DRAW, and CIRCLE.
computer_media, orig pub: 06.23.23, updated: 04.03.26
A complete two-part 1983 U.S. federal income tax calculator covering income, deductions, bracket lookup, credits, and final refund computation.
computer_media, orig pub: 06.23.23, updated: 04.03.26
A breadth-first patterned flood fill using a three-block circular queue on the hardware stack paints random circles with eight built-in 8×8 tile patterns.
computer_media, orig pub: 06.25.23, updated: 04.03.26
A complete double-entry bookkeeping suite with journal entry, ledger detail, income statement, and balance sheet modules — all driven by machine code sorting and optional numeric keypad input.
computer_media, orig pub: 06.25.23, updated: 04.03.26
A diagnostic utility that stress-tests removable wafer media by saving and verifying dozens of test files, then reports free capacity and lists any bad sectors found.
computer_media, orig pub: 07.15.23, updated: 04.03.26
A fractal landscape generator that builds 3D terrain through iterative midpoint displacement, then renders it with rotation, tilt, and optional sea-level clipping onto a high-resolution display.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A dual hi-res display demo plots a sine wave, a decaying exponential, and their product across two separate 4K graphics buffers with frame-alternating overlay.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A casino Blackjack game with high-resolution card graphics, multi-deck shuffling, bankroll tracking, and a clever fast-save/load system using a POKE flag.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A two-part puzzle-action game where you steer a character across a block-filled screen, defusing bombs using hi-res graphics and custom UDGs.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A full year-at-a-glance calendar with a built-in appointment database lets you navigate dates, add messages, and save your schedule to tape.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A complete transistor amplifier design suite that solves bias, stability, gain, frequency response, and thermal effects — and draws the schematic in character graphics.
computer_media, orig pub: 07.29.23, updated: 04.03.26
Generates fractal dragon curves from user-defined turn sequences, with auto-centering, fast/slow drawing modes, and a mid-draw interrupt menu for saving or reversing the display.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A nearly full machine-code Space Invaders clone with custom UDG graphics, joystick support, and a charming sideswipe bug that leaves ghostly invaders hanging in space.
computer_media, orig pub: 07.29.23, updated: 04.03.26
Explore infinitely detailed Julia set fractals with zoom, save/resume, and machine code acceleration in this sequel to a Mandelbrot program.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A mathematically rigorous L-System fractal generator that iterates production rules over an axiom string and renders self-similar curves using turtle graphics and machine code assist routines.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A Conway's Game of Life simulator with nine starting colony patterns, machine code generation logic, hi-res display, and an in-run menu for saving or restarting.
computer_media, orig pub: 07.29.23, updated: 04.03.26
A hi-res Mandelbrot set renderer that bypasses BASIC arithmetic entirely, calling the ROM floating-point calculator directly for a nearly 3× speed boost.
computer_media, orig pub: 07.29.23, updated: 04.03.26
Enter a waveform's data points and watch this Fourier analyzer compute harmonics, reconstruct waves, and even plot Lissajous figures—including a Mickey Mouse made of math.
computer_media, orig pub: 07.31.23, updated: 04.03.26
A two-level spelling quiz that tracks your wrong answers across sessions and lets you drill exactly the words you've been missing — with easy and difficult modes.
computer_media, orig pub: 08.06.23, updated: 04.03.26
A full sign-making studio with text layout, border styles, graphic tile editing, and multi-printer support — all driven by a substantial machine code engine loaded from tape.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A full Backgammon implementation with four skill levels, animated dice, a doubling cube, gammon/backgammon scoring, and a machine code AI that evaluates positions before making its moves.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A fully-featured carpool scheduling database with add, delete, and date-filtered display, packing all records into a single two-dimensional string array.
computer_media, orig pub: 08.13.23, updated: 04.03.26
Two machine-code-powered games in one package — navigate a maze at adjustable speed or challenge the computer at Tic Tac Toe, all driven by Z80 routines hidden inside REM statements.
computer_media, orig pub: 08.13.23, updated: 04.03.26
Two linked financial planning programs calculate IRA accumulation schedules, inflation impacts, tax savings, income streams, and the deposit indexing rate needed to maintain future purchasing-power parity.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A grammar drill suite covering verb agreement, pronoun usage, homonyms, and more, with timed tests, per-category scoring, and custom UDG logo graphics.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A dual-configuration database manager stores mailing list or phone book records using clever free-memory detection, character-encoded record indexes, and a machine code search routine.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A two-level spelling bee quiz that tracks your test history, lets you practice missed words, and challenges you to both spot and correct misspellings.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A complete speech synthesizer toolkit featuring a dramatic counting demo, free-text sentence input, and a multi-library word compiler that merges speech data blocks in high memory.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A four-part keyboard tutorial, a text-command turtle-graphics interpreter, and a full 40-account monthly budget manager — all in one BASIC collection.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A dual-mode windowing library demo lets BASIC programs scroll, color-change, and simultaneously manage up to eight independent screen windows with no machine code calls from the user.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A machine-code-assisted filing system lets you add, edit, search, and print multi-field records with configurable print formatting and numeric input validation.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A three-part space trading saga loads machine code, preserves cargo and credits across tape segments, and challenges you with alien quizzes, gravity maneuvers, and a deadly surface maze.
computer_media, orig pub: 08.13.23, updated: 04.03.26
A full PERT/CPM critical path analyzer that takes your project's tasks and activity times, then identifies which events have zero float.
computer_media, orig pub: 08.15.23, updated: 04.03.26
Enter your scrambled Rubik's Cube state, then simulate X, Y, and Z rotations with three different visual displays and full move history tracking.
computer_media, orig pub: 08.15.23, updated: 04.03.26
Design active band-pass, low-pass, and high-pass filters with Butterworth or Chebyshev approximations, then plot the frequency response on screen.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A full checkbook ledger program that tracks checks, deposits, balances, and fees, with date and alphabetical payee scanning across up to 250 transactions.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A Dutch-language two-to-five-player escape strategy game where prisoners collect equipment and navigate a block-graphics castle while guards hunt them down.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A fully functional spreadsheet with formula replication, absolute and relative cell references, and four selectable column-width layouts — all in BASIC.
computer_media, orig pub: 08.15.23, updated: 04.03.26
An animated, interactive introduction to microcomputer concepts that teaches CPU, RAM, ROM, and peripherals using block-graphic diagrams and a clever string-encoded drawing system.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A six-mode German language tutor quizzes words and phrases in both directions, tracks your score, and prevents repeat questions using a clever array-based deduplication technique.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A two-part typing tutor and arcade game teaches home-row fingering through animated keyboard diagrams, a timed Firecracker exercise, and a bomb-interception game with per-player score records saved to tape.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A keyboard-driven calculator interface with eight labeled rows, block-graphic borders, and PEEK/POKE memory tracking — all packed into compact, variable-optimized BASIC.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A two-part grammar drill covering capitalization rules challenges students to spot errors in sentences, tracks their scores by rule category, and offers a timed test mode.
computer_media, orig pub: 08.15.23, updated: 04.03.26
Explore a procedurally generated dungeon, collect gold, battle six monster types, and survive a scrolling tunnel of death in this BASIC adventure with embedded machine code.
computer_media, orig pub: 08.15.23, updated: 04.03.26
Navigate a randomly generated 3D maze while a Tyrannosaurus Rex hunts you down — a landmark first-person game driven almost entirely by machine code beneath a BASIC shell.
computer_media, orig pub: 08.15.23, updated: 04.03.26
A hands-on introductory BASIC course teaches INPUT, loops, subroutines, and INKEY$ through a series of block-graphic figures and a simple juggling game.
computer_media, orig pub: 08.15.23, updated: 04.03.26
Govern a fiefdom for eight years, balancing treasury spending, crop planting, pollution control, and population growth before a tidal wave — or your own mismanagement — ends your reign.
computer_media, orig pub: 08.15.23, updated: 04.03.26