On Tue, Apr 3, 2018 at 2:30 PM Trammell Hudson hudson@trmm.net wrote:
What ended up working for me was the PC speaker since there is no other I/O available so early. I'd really like to thank Uwe Hermann and the other devs of libpayload/speaker.c -- I was able to port their driver functions to execute very soon after the reset vector and confirm code execution with beeps and busy waiting.
now you've done it. Boot tunes here we come.