Platform Ondra Vili

Hardware summary

• U880D @ 2Mhz
• 64k RAM, 4k ROM

Classic library support (+ondra)

• Native console output
• Native console input
• ANSI vt100 engine
• Generic console
  • Redefinable font
  • UDG support
  • Paper colour
  • Ink colour
  • Inverse attribute
  • Bold attribute
  • Underline attribute
• Lores graphics
• Hires graphics
• PSG sound
• One bit sound
• Inkey driver
• Hardware joystick
• File I/O
• Interrupts
• RS232

Compilation

zcc +ondra world.c -create-app

This will create a .wav file suitable for loading into Mame. A .tap file is also created that should be readable by other emulators.

Mame usage

To load a tape, press return and then hit play on the tape

Ondra Keyboard

The Ondra keyboard consists of 3 rows of keys, the numbers are obtained by a modifier key. The mappings for z88dk/mame are:

• No modifier: Lower case letters
• Left shift: Upper case letters (UPPER key)
• Right shift: Symbols (SYMBOL key)
• Right Alt: Number (NUMBER key)
• Left Alt: Control (CS key)

For want of a better place, the delete/backspace key is mapped to CS + RETURN

Notes

Drawing on the screen on this target is notoriously slow.

Links

• https://sites.google.com/site/ondraspo186/