Platform Philips VG5000 - z88dk/z88dk GitHub Wiki
Hardware summary
The Philips VG-5000 was a computer marketed mostly in France, about 70000 machines were sold.
- Z80 @ 4Mhz
- 16kb ROM
- 24kb RAM
- EF9345 video processor, 25x40 columns
Classic library support (+vg5k)
- 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
Quick start
zcc +vg5k -subtype=wav -create-app -lm program.c
The "-subtype=wav" option creates an audio stream. If omitted only a ".K7" file, suitable for emulators, will be created.
"-subtype=fastwav" is a boosted variant, slightly speeding the generated audio stream.
The program can be loaded via the "CLOAD" command. It will run automatically.
If the '-zorg=xxxx' option is used, the autorun will be disabled, in that case the program should be run with "CALL xxxx".
Custom font support
The VG5k hardware provides an 8x10 character grid, however by default within z88dk 8x8 characters are used, so each character is padded with a blank line at the top and bottom. This can lead to undesirable gaps when displaying UDGs. If the option -pragma-define:CLIB_FONT_HEIGHT=10 is used, then all 10 lines of the character are filled. The font and UDG assets must contain 10 rows per character.