what is kprintf?

[mgarcia]

Starting to look at Nuon dev stuff again, I would like to get printf working, to get a log of output.
Searching on Discord:
cubanismo: I'm not aware of a printf-debug mechanism in Nuance.
cubanismo: Right now you can use DebugWS() I believe to write stuff onto the screen.

Here is what I've found:

I was looking at the nm mapfile:
vmnm -f sysv -n test.cof > vmnm.txt

and found:
_kprintf |80000488| A |

It's from:
lib/librombios.a

But with no header reference.

The only place I found it mentioned on my SDK (I think there's two floating around) was in:
sample/Graphics/raydemo/demo.c

extern void kprintf(const char *, ...);

But it isn't used anywhere.

Anyone know what kprintf does? was it for TTY output, I would guess it so because it's bios related and not c related?

I am an assembly noob, so that's pretty much were I stop :/

It looks like it's kind of implemented in Nuance:

NuanceResurrection/bios.cpp at be792e8e3716bbc127b79fa80165d8790b3ff618 · andkrau/NuanceResurrection

Contribute to andkrau/NuanceResurrection development by creating an account on GitHub.

github.com

And raised as issue here

Expose KPrintf output log properly in UI · Issue #20 · andkrau/NuanceResurrection

Hi, I noticed KPrintf is implemented but disables. https://github.com/andkrau/NuanceResurrection/blob/be792e8e3716bbc127b79fa80165d8790b3ff618/bios.cpp#L673C8-L673C8 Could we please get the kprintf...

github.com

 

[Stephen]

Can't say I've ever seen this. I always used DebugWS() to get the cool vector font for debugging.

 

[The Helper]

Typically that function is used to print debug information to the console. I am not sure the specifics of the NUON implementation but that is what it does typically.