ROMX

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ROMX

This is a continuation of the SMD ROM Replacement for Apple ][..." thread that was started 6 months ago. What started off as a simple way to have both Applesoft and Integer BASIC ROMs in a single, switched SMD Flash chip has blossomed into a full fledged multi-bank, in-circuit programmable device with multiple fonts, instant DOS/Language Card loading and much more. More importantly, versions for the Apple IIe and Apple //c are already in the design stage.

 

So it seems appropriate to give ROMX its own thread now. And before we get too locked in on the new versions I thought it would be nice to reach out to the community for comments/suggestions for the future of this product. Currently we have 3 images for the IIe : Standard, Enhanced, and Senior PROM. As we found out previously with the first product, we know there are many others out there. Perhaps you made a custom one that others would enjoy. Please let us know what you have or what you'd like to see. Ideas can be discussed here and submissions made to Dean at theRomExchange.com. A free ROMX board to the best contribution!

 

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ROMX for the IIe

I would want to see the following ROM images:

 

-Senior PROM

-Apple-1 emulation

-DOS 3.3 auto start (ProDOS?)

-A flashable EPROM with the user's favorite application (à la Quikloader card)

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ROMX for the IIe

How would the Standard and the Enhanced configurations co-exist?
Each type comes with a different version of CPU and Character generator.

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(how do I delete my posts?, there is not a 'delete' in the edit mode....)

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I personally do not feel that

I personally do not feel that a split thread is required here. The main ROMX thread is still very much contextual. I frankly am unsure on the purpose of this second thread. 

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mi2k wrote: (how do I delete
mi2k wrote: (how do I delete my posts?, there is not a 'delete' in the edit mode....)

 That's OK. I guess you figured out that this will require a 65C02 but that both Char Gen images will be available as Text ROM banks.

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Timelord wrote:I personally
Timelord wrote:

I personally do not feel that a split thread is required here. The main ROMX thread is still very much contextual. I frankly am unsure on the purpose of this second thread. 

 

Mostly because the ROMX is no longer tied to the Apple ][,  Apple II+ and EuroPlus.

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ROMX Custom Applications
mi2k wrote:

-A flashable EPROM with the user's favorite application (à la Quikloader card)

 Almost any program that is less than 12K (15K for the ROMXe) and loads completely into RAM can be uploaded to a bank on the ROMX. It just needs some trivial loader code added to move it from Flash to RAM on boot. We do that now with several existing images. If the program uses F8 Monitor calls, subtract 2K and include that in your image.

 

Larger programs, BASIC programs, and other custom applications can also be stored in one or more banks of the ROMX but it is a little more complicated. Full details will be added to the API Guide as time permits. I'll also create an Image Template that will make this easier.

 

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ROM eX, 4X, and 5X

It's official!

ROMXe will have Michael Guidero's ROM eX image on board. Yes, the naming convention is going to be a bit confusing. His original project required giving up either the Diagnostics or Cassette routines. With ROMXe you can always switch back to the stock ROMs to use these features. Best of both worlds.

 

And our ROMXc units will ship with both ROM4X and ROM5X images as well. Thanks Michael!!

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HAPPY NEW YEAR from JD MICRO

HAPPY NEW YEAR EVERYONE!

Our resolution for 2021 is to encourage more of you to contribute images for the ROM Exchange. That’s why we put Exchange into theRomExchange.com. We know there’s lots of other images out there that the community would love to try out. And more importantly, we want to see home grown images with older programs or new creations from the programmers out there.

To that end, we’ve created a tutorial for ROMifying code and a companion disk with templates for making this extremely easy. Take your favorite small utility or game and instantly move it into ROM with three easy steps. You don’t even need a ROMX board to go through the tutorial and create images that you can run from a Language Card/16K RAM Card or with your favorite Apple II emulator. Of course, having them instantly available upon power up is what ROMX is all about. Things like our Diagnostics and Memory Tester images really prove the power of ROMX, not to forget instant loading of DOS and LC. Now we just need more options to load into our empty banks!

Go to www.theromexchange.com to download the free tutorial and .dsk image. Let’s have fun in 2021!!

Jeff and DeanJD Micro

 

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