[Coco] GIME Chip Registers and the ultimate repack

[jdaggett at gate.net]

Robert

Correct. Within the  FPGA I can mux the IRQ/FIRQ lines in such a 
way as to use the two bits to control directions the IRQ/FIRQs are 
routed out to the CPU. Either from the PIA chips or from the GIME 
replacement. 

Right now I am try ing to get a basic compatible chip up and 
functioning. Then work on alterations and improvements

james



On 4 Aug 2004 at 7:53, Robert Gault wrote:

Date sent:      	Wed, 04 Aug 2004 07:53:03 -0400
From:           	Robert Gault <robert.gault at worldnet.att.net>
To:             	CoCoList for Color Computer Enthusiasts 
<coco at maltedmedia.com>
Subject:        	Re: [Coco] GIME Chip Registers and the 
ultimate repack
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> jdaggett at gate.net wrote:

> > Robert

> > 

> > I was thinking of integrating the 6821's into the chip if room was

> > there. That would require the IRQ's to come through the registers or

> > external pins. Either way that is doable.

> > 

> > Thanks for the input.

> > 

> > james

>  ><snip>

> 

> Don't forget that a Coco3 has both 6821 and GIME IRQ/FIRQ and uses

> them independently.

> 

> 

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