Appears On
A tiny machine code patch toggles bold, heavy-weight character output on and off with a single POKE to a system address.
A two-mode checkbook reconciliation program prints formatted ledger columns on screen and paper simultaneously, using integer penny arithmetic to sidestep floating-point rounding errors.
A screen-based substitution cipher pad that lets you decode cryptograms letter-by-letter using the display buffer itself as its working data structure.
An interactive tutorial for a nine-command BASIC extension that hooks the error handler to add pixel-level sprite graphics, sound effects, and BREAK-key control via machine code.
A Z80 machine code installer combines LDIR block-copy routines, a formatted memory inspector, and a region comparator into one compact loader utility.
A 118-byte machine code routine installs itself in high RAM, letting you flip the entire display upside-down or mirror it horizontally with a single RANDOMIZE USR call.
A complete darkroom reference program stores seven black-and-white film developer formulas with chemical weights and development times, all navigated from a single menu.
A geometric interference pattern builder that saves its own screen to tape with a user-chosen pause value baked right into the filename.
A hands-on hex loader that lets you POKE machine code directly into memory, with per-line checksum verification to catch any mistyped bytes.
Decode what's on any cassette tape before you load it — this utility reveals file type, filename, length, and auto-start line by reading the raw header block.
A line-by-line interpolated graph builder that scales and plots any twelve data points with smooth linear interpolation between each pair.
A machine code keyboard utility that lets you type BASIC keywords as plain text gets a slick animated loader with tape and disk backup support.
A fully configurable flat-file database lets you define custom fields, then add, edit, delete, search, sort, and save records — all from a simple numbered menu.
A compact memory editor lets you walk through RAM byte by byte, inspecting and patching machine code values interactively from the keyboard.
A machine code loader that POKEs decimal bytes into memory near RAMTOP, computes a checksum, and then tells you exactly how to SAVE the result to tape.
Plug in audio, pick a graph style, and watch live waveforms appear on screen — this BASIC program samples your tape input using a custom machine code routine.
A four-function BASIC toolkit offers machine code-powered renumbering, REM stripping, variable listing, and number compaction — all squeezed into a single two-part tape package.
A menu-driven word processor stores up to 600 lines of text with tape save/load, printer output, and a line-by-line editor — all in BASIC.
A video tape catalog manager stores up to 100 titles with searchable subject and tape-number fields, complete with a Shell sort and tape-based data persistence.
Enter your weekly recording schedule day by day and print a neatly formatted timetable complete with channel numbers and program names.
