Overview of the Thomson range

• 6809E - 8bit CPU by Motorola
• I/O Devices - General information and memory map
  • 6551 ACIA - Serial port controller by MOS Technology.
  • 6821 PIA - Programmable Interface Adapter by Motorola.
  • 6846 PIA - Programmable Interface Adapter, with Timer and ROM, by Motorola.
  • 6850 ACIA - Serial port controller by Motorola.
  • Gate Arrays - Thomson custom chips
  • EF9369 - Color palette generator

• WD177x - WDC floppy controller
• THMFC1 - Thomson custom floppy controller

• Sound synthesizers
• RF57-932
• CC90
• “Sound and game”
• MO5 RAM cartridge
• MODEM

• Monitor entry points
• Monitor direct-page
• Character map
• Tape format

• BASIC keywords - Complete keyword list with descriptions.
• BASIC howto - Get started with operating the computer, loading files, etc.
• BASIC internals - BASIC file format, keyword and function tokens.

• Floppy disk format
• Floppy controller entry points

• The official development tool is the Microsoft 6809 Assembler cartridge.
• A patched and improved version of it is available. For older machines it needs to be put on a ROM in a real cartridge, but for the TO8/D/9+ it can also be used as a CHG resident program.
• An alternative is AssDesass, which runs as regular software loaded from tape or disk.
• On MO5/6, there is also ODIN

• Colorpaint
• Graffiti
• Pictor

• Music 3V (3-channel music for MO6/TO8)

• TEO - Emulator for TO machines, fairly accurate, with built-in debugger. Linux and Windows, open source.
• JTEO (Java port of the above)
• MESS - Rather accurate emulation for all machines, built-in debugger, multi platform, open source.
• dcmoto - Emulator for all Thomson machines, Windows only, closed source. Usually runs existing software well, but may behave unexpectedly with new code.
• dcmo5, dcto8d, dcmo6 - Older version of the above,. One emulator per machine. DCMO5 and DCTO8D are open source and multiplatform, but DCMO6 is not.
• marcel'o'5 - Older emulator, not very accurate. Open source.

• lwtools modern cross macro assembler with lots of features.
• c6809

• gcc6809 modern compiler using lwtools for assembling and linking.
• mc09, K&R compiler, smaller but more limited.

• GrafX2, the ultimate 256-color painting program, features a color constraint checker for Thomson
• png2mo5 converts PNG files to the Thomson screen format. It works for TO machines, too.

• cc90
• PulkoMandy's Thomson stuff Source for various demos and other software, and several small tools for managing floppy and tape images, and so on. Open source, very portable code.
• Vital Motion