Tech with Dave

So on the C64 you could have commands like SYS 49152,X,Y,"TEXT" where your machine/assembly code could specifically parse the commas and numbers.

I have targeted the following M5 Stack models with my C64/C128/Vic-20/Apple 1 emulator: M5Stack Fire IoT M5 Core2 M5 CoreS3 (Even though I have targeted other boards, I had only implemented touch on the CoreS3) The primary reason for targeting these boards

Teensy in green, ESP32-C3 in blue I have a Teensy 4.1 operating as a Commodore 64 (and Vic-20, and 128, and Apple 1) emulator.

Tab5 Keyboard is a convenience add-on I added native keyboard support to my emulators already running on M5Stack's Tab5.

Finally, Commodore 128 can provide the 80 column screen that multiple monitor folks need - extended screen.

AI: What could go wrong?

The whole reason for my latest projects was to integrate and use controllers with Cardputer Game Station.

My goal is to play some games on ESP32 hardware.

It's not just another pretty face.

It's finally here!

There's a new game in town.

Keymap Editor for C64 This utility (available from github) allows the user to specify how to remap physical key locations on the Commodore 64 keyboard to different PETSCII keystrokes.

How do you write a snake game?

Here is a single player version of the classic snake game that I have recreated in BASIC for the Commodore Vic-20.

The Commodore 64 keyboard may display unexpected characters when joystick #1 is used.

This is an alternative take on the previous article Adafruit ST7789 TFT display with Arduino GFX Library and M5StampS3.

Attaching a display to a circuit can provide a lot of detailed info and graphical value.

It's August 2024.

The C128 team invented the GO64 command for compatibility.

Save has been added to my 6502 monitor program for the C64 version.

This snapshot feature is for the minimum 6502 emulation target included in c-simple-emu6502-cbm (unified branch).

6502 mini-assembler help system The help system recently added to the 6502 monitor (vwas6502) includes help commands monitor commands reference 6502 instruction set mnemonics 6502 addressing modes references, listing valid instructions opcodes with addres…

Sample assembly entry and run example Links Source at github D64 and PRG from github (Commodore 64) BIN for ROM (minimum system 6502 + MC6850 + RAM + ROM) Everyone (in a small corner of the retro programming community) has their favorite machine language…

Disassembler disassembling WozMon WozMon is a great little monitor program in 256 bytes which Steve Wozniak wrote for his Apple 1 release in 1976.

Directory listings scrolling by too fast?