Cross-checking ttlworks circuits

[ogamespec]

ttlworks sent their version of the 6502-like processor dissection (6509).

http://forum.6502.org/viewtopic.php?p=89264#p89264 (6509_idkfa.zip)

We need to cross-check all circuits on our side and find possible errors.

We will only check high-entropy circuits, in other simple circuits the error probability tends to zero.

Top Part:

• [x] Decoder
• [x] Interrupt Processing
• [x] Registers Control
• [x] ALU Control
• [x] Program Counter Control
• [x] Bus Control
• [x] Dispatcher
• [x] Flags Control
• [x] Branch Logic

Bottom Part:

• [x] Fast BCD Carry
• [x] BCD Correction

[ogamespec]