Re: [cc65] C64 Cartridge clarifications

On Wednesday 07 March 2012, you wrote:
> GAME and EXROM are two control lines at the expansion port. Their
> normal state is "high" (about 5V), which is usually called "1" in
> documentation.
> 
> Cartridges can pull them down to "low" (about 0V, usually called "0") to
> change the memory map of the C64, it gives some additional
> configurations or different meaning to what software can do with $01.
> 
> These lines are low-active. This means that they are called active when
> they are 0.
> 
> AFAIR there is a mistake or a fuzzy description of
> "active/inactive/1/0" in the CRT documentation or even in the CRT
> format, so be careful. A normal 16k Cartridge has both lines low.

and even worse, in vice - where one of the two is inverted (because the 
original AR works like that, and vice basically emulates AR only =P)


-- 

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four people died.

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