go_z80

Z80 CPU emulation in Golang.

What

• a z80 cpu emulation written in go.
• Some emulated retro computing platforms that use the z80.

Emulators

Talking Electronics Computer TEC-1A

Talking Electronics Computer TEC-1G

Jupiter ACE

Resources

• Jupiter ACE ROMs, https://jupiter-ace.co.uk/roms.html
• TEC-1 ROMs, https://github.com/tec1group/Software/tree/master/monitors
• TEC-1G Details, https://github.com/MarkJelic/TEC-1G
• HD44780 Emulation, https://github.com/visrealm/vrEmuLcd

Issues

Z80

• z80 emulation for undocumented flags (XY) is incomplete.
• zexdoc passes (good), zexall does not pass (undocumented flag support)

TEC-1A

• works pretty good...
• 8x8 LED Array can be enabled

TEC-1G

• Diagnostic ROM passes
• DS1302 RTC supported
• Keypad (74c923) supported
• Matrix keyboard supported
• Serial port supported (using pseudo-tty)
• Sound is supported
• LCD (HD44780) emulation is partial (no display scrolling)
• Disco RGBs are supported
• Graphics LCD (ST7920) emulation is partial (graphics are ok)
• 8x8 LED Array can be enabled

Jupiter ACE

• no tape (*.tap) support
• it's still a jupiter ace

Linux Dependencies

• Debian: apt-get install libxrandr-dev libglx-dev libgl-dev libxcursor-dev libxinerama-dev libxi-dev libasound2-dev pkg-config libxxf86vm-dev

Platforms

• Linux - Works. (main development environment)
• MacOS - Works.
• Windows - Unknown. It should compile and run. I haven't tried it.
• WASM - Sound startup is problematic.