module lua natif giac

[Adriweb]

Well, is it a Lua interface bug or a Lua bug ?
An interface one would be surprising, though.

[Vogtinator]

After the big changes and updates to ndless and the SDK I never tested Lua thoroughly, so it may as well be one.
If would really surprise me if it was in ndless itself and not the SDK, as the syscall addresses are the same.
It should be easy to distinguish those cases by testing in various environments.

[Adriweb]

I actually meant "interface" as in "GUI", not as a "bridge" between native and lua
But yeah, if the latter is what was meant, it probably makes sense then, if some syscalls aren't 100% correct.

[parisse]

My guess is that the reboot happens in one of the lua interface call

Code: Select all

static int caseval(lua_State *L) {
   const char *param = luaL_checkstring(L, 1);
   const char * ans=giac_caseval(param);
   lua_pushlstring(L,ans,strlen(ans));   
   return 1;
}


Indeed giac_caseval is a wrapper to giac::caseval

Code: Select all

const char * giac_caseval(const char * s){
  vx_var=identificateur("x");
  //static nio::console console_cin;
  //console_cin_ptr=&console_cin;
  return giac::caseval(s);
}


and giac::caseval is called without bug in giac.tns by the commandline caseval(sqrt(2))

Perhaps in lua_pushlstring. Another hypothesis could be that the const char * passed to caseval should be copied?

[parisse]

Some other tests:
I could reduce the size of compilation by using -fno-exceptions and -fno-rtti (2.5M compressed, twice more uncompressed).
This does not prevent the module to reboot for sqrt(5).
I can not run giac.tns or khicas/luagiac.luax inside my copy of nspire_emu. It's the same as on a nspire (non-cx). Perhaps because there is not enough memory, or there is some other incompatibility.
I can not compile nspire_emu/qt downloaded from git clone https://github.com/Vogtinator/nspire_emu (use of undeclared identifier 'read_word_ldr' on OSX). Is there a way to use the old nspire_emu with a CX flash/keyboard?

[Vogtinator]

I can not run giac.tns or khicas/luagiac.luax inside my copy of nspire_emu. It's the same as on a nspire (non-cx). Perhaps because there is not enough memory, or there is some other incompatibility.

Yeah, unless the /R switch is enabled, the calc has a SDRAM size of 32MB.

I can not compile nspire_emu/qt downloaded from git clone https://github.com/Vogtinator/nspire_emu (use of undeclared identifier 'read_word_ldr' on OSX).

Fixed now, but http://github.com/nspire-emus/nspire_emu is more stable and shouldn't break that often.
If you create a flash in nspire_emu-qt it will automatically create a 132MB flash and 64MiB RAM if you choose a CX calc.

[parisse]

Ok now I've compiled nspire_emu. But if I run it, I get LCD turned off, and I don't know how to setup the emulator. Where is the doc to set it up?

[Vogtinator]

There is no real guide yet, unfortunately. A release of a beta is planned soon, but for now you can follow this:
-Flash->Create
You can leave out everything, but if you select OS and boot2, it will install everything automatically
-Settings->Nspire
Select boot1 and flash images
-Settings->Emulator
Select "Start emulation automatically"
-Emulation->Restart

Basic controls (you can use Alt as well if Meta doesn't work for you):
-Meta-M: Menu
-Meta-Esc: On/Home
-Meta-D: Doc
-F1: (
-F2: )

[parisse]

I don't know what you mean by Meta, I tried alt-M and cmd-M, but it did not work to get menu when running ndless_installer, and it even froze the emulation.
Fortunately, I could configure the old nspire_emu for CX and there I can click on menu. I'll see later if I can debug in giac source (it did not work with the old toolchain). If it's possible, then I'll be able to check if the reboot happens in giac code.

[Vogtinator]

I looked at the Qt docs and the Meta key is mapped to Control on Mac.