Author Topic: Super CPC  (Read 8580 times)

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Offline Bryce

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Re: Super CPC
« Reply #50 on: 23:59, 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.
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Offline TotO

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Re: Super CPC
« Reply #51 on: 00:08, 19 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.
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?

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?
It should work if used with an other game selector.
« Last Edit: 00:10, 19 February 16 by TotO »
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Offline Bryce

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Re: Super CPC
« Reply #52 on: 00:39, 19 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.
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Offline gerald

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Re: Super CPC
« Reply #53 on: 11:45, 19 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.
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Offline ||C|-|E||

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Re: Super CPC
« Reply #54 on: 15:02, 19 February 16 »
And this would be wonderful, because we could produce cartridge games in SD cards, that are deadly cheap nowadays  :)