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Re: better late than never: amigappc progress
On Sat, 13 Feb 2010 14:50:07 +0100 Frank Wille wrote:
> That's bad. Seems there is no memory mapped to 0xfff00000 (or it is
> protected). A CSPPC will hardware-map the last 512k of its Fast-RAM
> there. The PowerPC needs this region for exception vectors, so it should
> be the same for BPPC...?
Curious. Half a meg fast memory did go somewhere in my case, though. See below.
> In this example you inserted two 32MB SIMMs?
I had two SIMMs, 32M and 4M. I inserted each separately in different memory
slots on BPPC. So there were four different test cases in total.
Case 1: 32MB SIMM alone in first slot:
Memory Address: $76000020 Size: $01F7FFE0 (32255K) Type=$00 CACHEABLE
Case 2: 32MB SIMM alone in second slot:
Memory Address: $78000020 Size: $01F7FFE0 (32255K) Type=$00 CACHEABLE
Case 3: 4MB SIMM alone in first slot:
Memory Address: $57C00020 Size: $0037FFE0 (3583K) Type=$00 CACHEABLE
Case 4: 4MB SIMM alone in second slot:
Memory Address: $68000020 Size: $0037FFE0 (3583K) Type=$00 CACHEABLE
As can be seen from these figures, half a meg is missing from the end in each
> Ignatios Souvatzis suggested to automatically relocate the kernel when
> loaded. I'm thinking about it. The rest would be easy and the kernel
> could autodetect everything when running.
Can't see why not.
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