After releasing SDCC 0.1, Boukichi also released a new version of the MSX-compatible BIOS: C-BIOS. New in this version:
- The remaining half of the font was created.
- The key input routine has been improved.
- CHPUT was rewritten.
- The display routine was rewritten as well.
- init_grp was corrected.
- The file names have changed into CBIOS.ROM and CBIOS_SUB.ROM.