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Amiga computer related discussion => Amiga Software Issues and Discussion => Topic started by: brownb2 on September 04, 2010, 02:11:15 AM

Title: Using Compact Flash instead of SRAM over PCMCIA
Post by: brownb2 on September 04, 2010, 02:11:15 AM

As it's possible to use a CF card in a PCMCIA adapter is it possible to configure a CF card (or portion) as 16bit RAM? Is there any special software (or in development...) to do this?

I'm guessing as the CF is really implementing the IDE transfer standard and not presenting itself to the miggy as a a simple memory mapped region this might prevent the above... but I'd like to know for certain. :)

Title: Re: Using Compact Flash instead of SRAM over PCMCIA
Post by: mongo on September 04, 2010, 02:57:52 AM

You can not use Flash RAM as RAM.

Title: Re: Using Compact Flash instead of SRAM over PCMCIA
Post by: brownb2 on September 04, 2010, 03:11:39 AM

Quote from: mongo;577650

You can not use Flash RAM as RAM.

Well to be finicky I probably can... albeit using an MMU and a swap partition or file. Shame it can't be done without this as it would have been a real boon for A600 owners.

Title: Re: Using Compact Flash instead of SRAM over PCMCIA
Post by: mongo on September 04, 2010, 03:25:33 AM

Quote from: brownb2;577653

Well to be finicky I probably can... albeit using an MMU and a swap partition or file. Shame it can't be done without this as it would have been a real boon for A600 owners.

Virtual memory is not RAM.

Title: Re: Using Compact Flash instead of SRAM over PCMCIA
Post by: brownb2 on September 04, 2010, 04:03:25 AM

Quote from: mongo;577654

Virtual memory is not RAM.

..and coconuts don't migrate unless they are carried by an African swallow.

Title: Re: Using Compact Flash instead of SRAM over PCMCIA
Post by: Khephren on September 20, 2010, 10:08:27 PM

I think you need an MMU for virtual memory programs on the amiga, which a 68000 does not have :(

Title: Re: Using Compact Flash instead of SRAM over PCMCIA
Post by: SamuraiCrow on September 21, 2010, 05:18:03 PM

Quote from: brownb2;577653

Well to be finicky I probably can... albeit using an MMU and a swap partition or file. Shame it can't be done without this as it would have been a real boon for A600 owners.

There is no way to connect an MMU to an A600.  If you had an accelerator card for the A600, you'd probably have memory connected to it anyway so the MMU still would only help you for running diagnostic programs to develop software.