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MPoupe : I don't know if ram access is faster than flash access. You could do some speed test: if ram access is faster, then you can use it to store the data you would access many time.

KermMartian : Would you like a similar syntax or a kind of compatibility?
vebveb wrote:
MPoupe : I don't know if ram access is faster than flash access. You could do some speed test: if ram access is faster, then you can use it to store the data you would access many time.

Hello, I have more complicated problem. I need to access ~ 4 MB in once. Data are stored in flash most of them I do not modify. For small data it would be easy, I would load them to RAM and use. But the whole RAM capacity is 2MB, but I can use around 1 MB (non continuous areas). So there is no such question "flash or RAM ?".

BTW: flash / RAM access is +- the same, the whole Prizm OS runs from the flash, all addins run from flash.
Vebveb: I'd like complete comatibility, as far as possible, but that's something we should discuss in another topic, I think. I'd like it to be able to run FX Lua programs with some emulated screen setup, Nspire Lua programs in a virtual 320x240 display, and have native Prizm Lua programs that can use the full display.

Yeah, reading from Flash is very fast; it's writing to Flash that's a big slow-down. As MPoupe said, there's not really a choice since we have <1MB of RAM to use, including reservations on the stack, but it's not the end of the world since Flash reading is fast.
Is there somebody who wants cooperate with CGDoom development ?

BTW: slightly improved version is here: http://ourl.ca/16465/310496

Source code of this version (binaries included) is here: http://martin.poupe.org/casio/cgdoom/cgdoom0.03src.zip
Hello MPoupe.
I just bought a Casio fx-CG50 graphing calculator and I am having issues getting Doom to work on it.
When I first put it on I would get a file too fragmented error so I deleted the files and re-added them and now I'm getting a "cannot open doom.wad" error.
Any ideas what I'm doing wrong?

There is another message that comes up when I unplug the USB it says: Note: Add ins deleted by reset1 are installed. Press: [EXE] Not sure what that means. I know you need to eject a device due to write caching but I have that turned off.
Gamehead wrote:
Hello MPoupe.
I just bought a Casio fx-CG50 graphing calculator and I am having issues getting Doom to work on it.
There are lot of hacks to make it working on the calculator. I am aftraid, that CG50 differs too much to have full binary compatibility. I do not own CG50 so I am not able to update cgdoom. But I released the source code, so you can fix it for you if you want.
  
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