Re: Hardware emulation of 6509 using 6502?

From: Michał Pleban <*lists_at_michau.name*> Date: Sun, 25 Feb 2018 23:30:36 +0100 Message-ID: <5A93390C.8000704@michau.name> · lists_at_michau.name

smf wrote:

> When you access the execute bank then I would agree, so normal
> instructions and the zero page access of indirect instructions will
> access the IO register.
> 
> But I'm not convinced when you do an indirect access and it goes to a
> different bank.

Yes, it reads the register too in this case, see this test:

https://github.com/MichalPleban/6509-test/blob/master/test/read_back.asm

Regards,
Michau.

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