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Author Topic: Prizm goals  (Read 25059 times)

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Offline AngelFish

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Re: Prizm goals
« Reply #15 on: January 04, 2011, 01:42:17 pm »
I wrote it  :P

The manufacturer, Renesas, made a lot of documentation available and I modified one of their programs to overclock the processor instead of underclock it. I've documented much of the CPU timer stuff here. There's still a bit more I need to add about the Bus clock, the WDTCR register, and the STBCR/STBCR2 registers.

EDIT: Corrected the register names
« Last Edit: January 04, 2011, 01:47:10 pm by Qwerty.55 »
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Re: Prizm goals
« Reply #16 on: January 04, 2011, 01:44:38 pm »
cool, sounds like you're already getting far into cracking already.  Good luck! :)
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Offline AngelFish

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Re: Prizm goals
« Reply #17 on: January 04, 2011, 02:23:15 pm »
Additional goals:

High level markup language: Let's face it, graphic design in Axe sucks. It'll be even worse on the Prizm where you're forced to use two byte color codes instead of simple B/W bitmaps.

Basic Web Browser: Who wouldn't want to visit OmnimIRC on a Prizm? It's not like anyone puts SuperH assembly Virii on the Internet either :P

Calculator shell: This is a necessity since the Prizm apparently includes no way to execute Assembly programs within the OS.

3rd party OS: If Prizm-OS is really 16MB, then I'm sure we can make something better. This might be a bit ambitious though,





« Last Edit: January 04, 2011, 02:24:54 pm by Qwerty.55 »
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Offline DJ Omnimaga

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Re: Prizm goals
« Reply #18 on: January 04, 2011, 04:41:31 pm »
Well graphics in Axe aren't too bad considering it's just a 83+. In ASM it's a major PITA to make grayscale compared to Axe and in TI-BASIC you're limited like crazy, unlike in Axe, where you can do more and in ASM, where you can do everything, although harder. It would be nice to have spriting libraries and stuff, though.

As for a shell, I wonder if it will work like on the TI-73, 82 and 85, where a hacked backup file of the RAM is sent to the calc?

As for overclocking, IMHO it shouldn't require hardware mods. We need to make it available for as many people as possible.
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Offline JosJuice

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Re: Prizm goals
« Reply #19 on: January 05, 2011, 02:58:07 am »
Quote from: DJ Omnimaga on January 04, 2011, 04:41:31 pm
As for a shell, I wonder if it will work like on the TI-73, 82 and 85, where a hacked backup file of the RAM is sent to the calc?
It seems like an add-in is the best choice right now.
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Offline AngelFish

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Re: Prizm goals
« Reply #20 on: January 08, 2011, 02:44:40 pm »
We need an Assembler. Writing that frequency change routine in Machine code was a PITA  :P
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Offline DJ Omnimaga

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Re: Prizm goals
« Reply #21 on: January 08, 2011, 07:00:04 pm »
I imagine. That said, maybe if Xeda ever gets interested in Prizm hex... :P
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Offline jnesselr

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Re: Prizm goals
« Reply #22 on: January 08, 2011, 10:12:54 pm »
Quote from: DJ Omnimaga on January 08, 2011, 07:00:04 pm
I imagine. That said, maybe if Xeda ever gets interested in Prizm hex... :P
I could write a compiler, but I don't have a prizm and actually testing would be a pain to make sure everything worked correctly.
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Offline z80man

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Re: Prizm goals
« Reply #23 on: January 08, 2011, 11:03:48 pm »
Quote from: graphmastur on January 08, 2011, 10:12:54 pm
Quote from: DJ Omnimaga on January 08, 2011, 07:00:04 pm
I imagine. That said, maybe if Xeda ever gets interested in Prizm hex... :P
I could write a compiler, but I don't have a prizm and actually testing would be a pain to make sure everything worked correctly.
It will be tough to write a compiler considering that SH3 asm has many more commands than the z80.
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List of stuff I need to do before September:
1. Finish the Emulator of the Casio Prizm (in active development)
2. Finish the the SH3 asm IDE/assembler/linker program (in active development)
3. Create a partial Java virtual machine  for the Prizm (not started)
4. Create Axe for the Prizm with an Axe legacy mode (in planning phase)
5. Develop a large set of C and asm libraries for the Prizm (some progress)
6. Create an emulator of the 83+ for the Prizm (not started)
7. Create a well polished game that showcases the ability of the Casio Prizm (not started)

Offline AngelFish

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Re: Prizm goals
« Reply #24 on: January 08, 2011, 11:04:33 pm »
Quote from: DJ Omnimaga on January 08, 2011, 07:00:04 pm
I imagine. That said, maybe if Xeda ever gets interested in Prizm hex... :P

DJ, I wrote the entire program in Binary, then translated it to Hex :P
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Offline DJ Omnimaga

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Re: Prizm goals
« Reply #25 on: January 09, 2011, 08:43:40 pm »
Quote from: Qwerty.55 on January 08, 2011, 11:04:33 pm
Quote from: DJ Omnimaga on January 08, 2011, 07:00:04 pm
I imagine. That said, maybe if Xeda ever gets interested in Prizm hex... :P

DJ, I wrote the entire program in Binary, then translated it to Hex :P
O.O

How? O.O

Next thing I know, Qwerty.55 will have ported Starcraft 64 to the Casio Prizm.
« Last Edit: January 09, 2011, 08:44:20 pm by DJ Omnimaga »
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Offline jnesselr

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Re: Prizm goals
« Reply #26 on: January 09, 2011, 09:18:59 pm »
Quote from: DJ Omnimaga on January 09, 2011, 08:43:40 pm
Quote from: Qwerty.55 on January 08, 2011, 11:04:33 pm
Quote from: DJ Omnimaga on January 08, 2011, 07:00:04 pm
I imagine. That said, maybe if Xeda ever gets interested in Prizm hex... :P

DJ, I wrote the entire program in Binary, then translated it to Hex :P
O.O

How? O.O

Next thing I know, Qwerty.55 will have ported Starcraft 64 to the Casio Prizm.
Yeah, he used the data-sheet, basically wrote a program and compiled it himself. (As in, not by a program, but by hand)
« Last Edit: January 09, 2011, 09:19:16 pm by graphmastur »
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Offline willrandship

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Re: Prizm goals
« Reply #27 on: January 09, 2011, 10:18:00 pm »
So, wait, you can already run code on the prizm? cool!

Nspire emulation is most likely a no-go, unless you can get that overclocking to around 800 mhz-1Ghz, which would be insane. It takes a lot of power to emulate stuff, compared to the actual power of what you're emulating. However, color Snes emulation....drool
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Offline DJ Omnimaga

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Re: Prizm goals
« Reply #28 on: January 10, 2011, 12:55:14 am »
Not sure yet, if I remember he still couldn't get third-party apps to install or something. It's promising, though. Hopefully we can soon manage to successfully run them.
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Offline AngelFish

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Re: Prizm goals
« Reply #29 on: April 13, 2011, 08:24:22 am »
Quote from: DJ_O on January 09, 2011, 08:43:40 pm
Next thing I know, Qwerty.55 will have ported Starcraft 64 to the Casio Prizm.

Done :P

Also, Necro...
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