GP32 C Library Functions

[pea]

Hi all,

This will be simple to all the long-time c coders out there:

Where is gcc linking in the functions that I don't specifically include the headre files for, and are NOT in the Mr.Mirko SDK? For example sprintf etc? How can I find out all the functions I have access to, as some (e.g. min, max) are not available.

 

[gp32rich]

I'm not sure about under Mirkos, but the GPSDK gets them from $DEVKIT$/gp_libs/lib/*.a

To find out what is in, I'm sure there's a GNU tool, but a hex viewer shows the exportable names near the beginning of the file.


HTH

 

[pea]

Hi Rich,

Thanks again - always helpful.
I decided that the functions not included must not be included for a reason (e.g. portability) so decided to source external ones. i.e. Fixed point math instead of floating.

BTW - in my simple game so far (just my player, and enemy and about 50 bullets at once on screen) I converted from float to fixed point math and the speed increase is phenomenal. And its only addition and subtraction, and a few multiplications so far (no trig yet).... its so quick, its almost playable on geepee32 at actual speed.