Author Topic: HP Prime Emulator  (Read 854 times)

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Offline gigi1237

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Re: HP Prime Emulator
« Reply #15 on: August 19, 2017, 10:48:31 am »
Yep I'm perfectly aware of that. I initially thought it was because the interrupt controller was not working properly but that can't be the case because the boot process breaks before unmasking any interrupts. I for the life of me can't figure what unimplemented system is causing the failure to boot.

Debugging with gdb does not provide anything too useful as the fault occurs far from where the code hangs.

Offline webmasterpdx

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Re: HP Prime Emulator
« Reply #16 on: September 03, 2017, 03:07:33 am »
You can't emulate this at the system level without the various system call API.....where are you going to get that? I doubt if HP is just going to give it to you....
just curious...
Thx

Offline Hooloovoo

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Re: HP Prime Emulator
« Reply #17 on: September 03, 2017, 04:18:02 am »
We're emulating at a level much lower than the syscall level, we're emulating the hardware the syscalls run on.
"My world is Black & White. But if I blink fast enough, I see it in Grayscale." -tr1p1ea
Spoiler For some of the calcs I own:



(actually I have quite a few more than this, but I don't feel like making bars for them all.)

Offline gigi1237

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Re: HP Prime Emulator
« Reply #18 on: September 03, 2017, 02:35:44 pm »
You can't emulate this at the system level without the various system call API.....where are you going to get that? I doubt if HP is just going to give it to you....
just curious...
Thx

My original project was doing exactly this. The way I obtained the SysAPIs was by reverse engineering the calc's firmware. So no need for HP to hand them over.

The new project is a hardware level emulator.

Offline webmasterpdx

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Re: HP Prime Emulator
« Reply #19 on: September 03, 2017, 07:16:21 pm »
Ah, OK, because in an earlier post, it was stated that it wasn't going to be a hardware emulator, but a syscall level emulator. That makes more sense. Emulating the hardware allows the system rom file to be used.....makes much more sense...
Thks
-D