MESS emulator

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zephyr
Posts: 1474
Joined: Mon Jul 21, 2008 1:18 am

MESS emulator

Post by zephyr »

One of the 6809E based machines listed for MESS is a 'Dragon 64 Plus'. Can anyone explain how this 'Dragon 64 Plus' is different from a standard Dragon 64?
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admin
Site Admin
Posts: 410
Joined: Thu Jul 17, 2008 10:22 pm

Re: MESS emulator

Post by admin »

Prime was trying to start to emulate a D64 + Compusense Dragon Plus (80 column MC6845 text only screen and 64KB additional RAM).
Simon Hardy
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prime
Posts: 268
Joined: Fri Apr 10, 2009 1:40 am

Re: MESS emulator

Post by prime »

admin wrote:Prime was trying to start to emulate a D64 + Compusense Dragon Plus (80 column MC6845 text only screen and 64KB additional RAM).
Yep, currently emulates just the extra ram, at some point I do want to try and get it to emulate the 80 col too.

Cheers.

Phill.
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zephyr
Posts: 1474
Joined: Mon Jul 21, 2008 1:18 am

Re: MESS emulator

Post by zephyr »

admin wrote:Prime was trying to start to emulate a D64 + Compusense Dragon Plus (80 column MC6845 text only screen and 64KB additional RAM).
prime wrote:Yep, currently emulates just the extra ram, at some point I do want to try and get it to emulate the 80 col too.
Thanks for the info. How do you access the extra 64K of RAM from machine code?

BTW, Any chance you could fix the CP400 emulation?
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