daver2
10k Member
Marty,
I have made a few 'tweaks' today and run some quick diagnostics withe no ill effects.
I have removed signal A0 from the calculation of CIN (replacing it by a logic '1').
I have used the MA register (instead of PC or MB) in the calculation of the Effective Address (EA).
I have implemented the logic for NMR+DIRECT*(DCA+JMP+JMS).
I have also done a quick check of the use of the An and Fn signals and their use looks consistent with my state diagram.
I will ZIP up the latest LOGISIM circuit file shortly (Version 0.5 dated 18th october 2015) and attach it to this post. Done.
Dave
I have made a few 'tweaks' today and run some quick diagnostics withe no ill effects.
I have removed signal A0 from the calculation of CIN (replacing it by a logic '1').
I have used the MA register (instead of PC or MB) in the calculation of the Effective Address (EA).
I have implemented the logic for NMR+DIRECT*(DCA+JMP+JMS).
I have also done a quick check of the use of the An and Fn signals and their use looks consistent with my state diagram.
I will ZIP up the latest LOGISIM circuit file shortly (Version 0.5 dated 18th october 2015) and attach it to this post. Done.
Dave
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