Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> writes: > I can confirm here that in combination with an updated OpenBIOS then the > patchset gets qemu-system-ppc -M mac99 to the OS 9 loading screen, which > is great progress! > > When booting OS 9 with this patchset I do see the following output on > the console: > > Trying to write invalid spr 0 (0x000) at 00f113c0 > Trying to read invalid spr 0 (0x000) at 00f113c8 > Trying to write privileged spr 955 (0x3bb) at 00f164b8 > Trying to write invalid spr 959 (0x3bf) at 00f16520 > Trying to read invalid spr 959 (0x3bf) at 00f16528 > Trying to write privileged spr 955 (0x3bb) at 00f164b8 > Trying to write invalid spr 959 (0x3bf) at 00f16520 > Trying to read invalid spr 959 (0x3bf) at 00f16528
>From http://www.freescale.com/files/32bit/doc/data_sheet/MPC604.pdf it looks like the 955 and 959 are SPRs for the Performance Monitor, specifically SDA and SIA, Sampled Data/Instructian Address. Some more info: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=528812 and probably around some processor manuals.
