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Super CPC

Started by dodogildo, 18:05, 14 February 16

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Bryce

#50
22:59, 18 February 16
If you use a real DAC it's not a DigiBlaster any more. The beauty of the Digiblaster is that it's completely passive.

As far as the cartidge is concerned, go for it! Would a C4CPC work on that or does it need any plus features to work?

Bryce.

TotO

#51
23:08, 18 February 16 Last Edit: 23:10, 18 February 16 by TotO
Quote from: Bryce on 22:59, 18 February 16If you use a real DAC it's not a DigiBlaster any more. The beauty of the Digiblaster is that it's completely passive.
The digiblaster concept was to do it passive, only because no 5V is available on the printer port. No?
Using a DAC allow to keep the compatibility and increase the sound quality. Is-it a problem?

Quote from: Bryce on 22:59, 18 February 16As far as the cartidge is concerned, go for it! Would a C4CPC work on that or does it need any plus features to work?
It should work if used with an other game selector.
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)

Bryce

#52
23:39, 18 February 16
Quote from: TotO on 23:08, 18 February 16
The digiblaster concept was to do it passive, only because no 5V is available on the printer port. No?
Using a DAC allow to keep the compatibility and increase the sound quality. Is-it a problem?
It should work if used with an other game selector.

Of course a DAC could simulate it, but it's a bit like saying you can replace a valve radio with a digital one. It's not how good it is (it was never particularly good if you ask me), but how it is done.

Bryce.

gerald

#53
10:45, 19 February 16
Quote from: Bryce on 22:59, 18 February 16
As far as the cartidge is concerned, go for it! Would a C4CPC work on that or does it need any plus features to work?
C4CPC is made of 2 separated part HW and SW.
The SW part (CprSelect) would need a rewrite to remove/replace all Plus features : color, raster IRQ
The HW part is a bit more tricky as to make the game conversion work on a CPC (no plus) you have to add some of the plus ROM mapping capability to the CPC
   - logical mapping : Lower ROM to Cart ROM 0x80, Basic ROM to cart ROM 0x81, CPC ROM7 to Cart ROM 0x83
   - Cartridge ROM mapped to upper ROM 0x80 - 0x9F

Also, it will be more economical to have the ROM emulation and SD within the CPC, not on a separated cart. C4CPC have the ACID emulation that you do not need.

So basically, cartridge slot is not needed, only a SD slot.

||C|-|E||

#54
14:02, 19 February 16
And this would be wonderful, because we could produce cartridge games in SD cards, that are deadly cheap nowadays  :)
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