BackupBand with Raspberry 3b+

[Fernando]

Hi,

First thanks Jeffg for this great software!

I'm using it with my Linux Mint Pc, and now I want to play the backupband with my Raspberry with Pachtbox OS (raspbian 32 bits) and Pisound sound card....

I find out that using the flag -fsigned-char flag was neccessary to compile it, otherwise I got a warning “value less than minimum” and the software did not run properly, no reaction to START to play. After that I was able to use the External Synth and get some MIDI OUT with JACK. But looks it's not stable, most of the times after some live style change or change from intro to verse, the sound gets distorted or with wrong tempo and the software crashes with a segmentation fault.

Anybody can guide me what could be the problem? and how to solve it?

When I compile it I got a warning XLibGuiCtls.o linker input file unused because linking not done... but I'm not sure if it's really important.

On the other hand, looks the code is not as actual as the 64bits compiled version, right?

Thanks!

Fer

[jeff]

I recently got an ARM system, and have discovered that the gnu compiler generates some very different code on Intel versus ARM CPUs. In some cases, it even results in crashes, particularly with regard to signed versus unsigned variables. Basically anyplace where you have a signed value recast as unsigned, it can be trouble under arm. For example, this works under intel, but can do weird things under arm:

unsigned char MyVariable;

MyVariable = (unsigned char)-1;

I'm currently cleaning up the code to get it working on arm cpus.