Preparing ugBasic + Xroar for COCO 1/2 dev
Posted: Thu Apr 30, 2026 9:11 pm
To have ugBasic and Xroar (COCO emulator) up and running, you will need:
Run ugBasic, since it is the very first time, it will boot into a wizard, follow along selecting the TRS-80 Color Computer (6809) and hit download on the next page so the necessary files are installed. With that complete, select CONFIGURATIONS / EMULATORS… from the drop down menu and point Xroar and ROMS to your Xroar folder. Save it and the development environment is complete.
To test it, make a new project and type CLS:PRINT “ALL FINE” and save it. From the drop down BUILD menu select RUN / TANDY CORPORATION / TRS-80 COLOR COMPUTER and choose XROAR…SINGLE BIN. After compiling, the Xroar emulator should pop up and display a green screen with the printed word.
- Xroar Emulator. Download the ZIP ARCHIVE file from https://www.6809.org.uk/xroar/ and extract its content to your desired location, preferably outside the usual Windows program files or system locations, like C:/RETRODEV/xroar-1.10-w64
- COCO Roms. Download the roms from the Color Computer Archive at https://colorcomputerarchive.com/repo/ROMs/XRoar/CoCo/ , for COCO 1 and 2 you will need: BAS13.ROM , EXTBAS11.ROM , DISK11.ROM _ keep those files on the Xroar folder
- ugBasic. Download it from https://ugbasic.iwashere.eu/ide and like Xroar, keep it outside of Windows standard folders, like C:/RETRODEV/ugBasic
Run ugBasic, since it is the very first time, it will boot into a wizard, follow along selecting the TRS-80 Color Computer (6809) and hit download on the next page so the necessary files are installed. With that complete, select CONFIGURATIONS / EMULATORS… from the drop down menu and point Xroar and ROMS to your Xroar folder. Save it and the development environment is complete.
To test it, make a new project and type CLS:PRINT “ALL FINE” and save it. From the drop down BUILD menu select RUN / TANDY CORPORATION / TRS-80 COLOR COMPUTER and choose XROAR…SINGLE BIN. After compiling, the Xroar emulator should pop up and display a green screen with the printed word.