On Thu, 2 Jul 2020, Howard Spoelstra wrote:
The boing is beautiful when g3beige/screamer with increased buffer size
boots the G3 rom ;-)
Try it without my RFC I2C patches (checkout the one before i2c which is
"mac_oldworld: Change PCI address of macio to match real hardware" then
build that). With that a crashing sound is heard and you get > prompt
where you can type ? to see a hardware test menu (but most tests don't
seem to return anything useful and the ROM checksum is failing, seems to
read from wrong address). I've shown that here:
https://lists.nongnu.org/archive/html/qemu-ppc/2020-06/msg00239.html
I've never seen that on real hardware but I don't have much experience
with old Macs. I guess you'd get the same if you removed all RAM from a
machine and connected a serial terminal (in case you have a real beige
G3). This might also be useful to test emulation if someone wants to
investigate.
Regards,
BALATON Zoltan
