This page is about porting Commodore BASIC to the SUBOR.

There are three main parts to it:

1. Can we direct keypresses on the SUBOR keyboard to the Commodore Kernal?
2. Can we successfully relocate all of the C64 Kernal and BASIC into the SUBOR memory space?
3. Can we redirect screen writes from the Commodore Kernal to a new SUBOR Kernal that emulates the C64 screen?

Keyboard Input

Being reverse-engineered here.

Kernal Relocation

Will make extensive use of commented listings of Commodore Kernal and BASIC.

Also, the roms located here.

Screen Output

• Based on JSR $FFD2

• Will probably make use of Nerdy Nights - Week 6 Backgrounds

NES resolution = 256x240

background = 32x20 tiles  of size 8*12

requires 1KB of RAM for 1000 tile nametable.

or should it uses sprite mode?  or both?

C64 resolution = 320x200

text mode =    40x25

Also:

http://wiki.playpower.org/Alphabet-Songs