A1 now booting OS4 straight from hard drive

[bloodline]

that_punk_guy wrote:
I think at this point it would be better for the emulation solutions to start supporting the PPC, that way moving forwards instead of dragging everything backwards.

Hmmm, that's a good idea! I've been reading loads of Emulation technical documents recently. It would be fun to add a PPC ZII (BlizzPPC?) autoconfig device to UAE :-)

Though, right now, I'm actually looking at 68K emualtion for obvious AROS related reasons :-D

[bloodline]

Moving this approach to PPC is very hard. PPC opcodes are 32-bits wide. So a naive LUT for every opcode isnt feasable - it would be 16G in size (assuming each function pointer in the table is 32-bits wide)

Masking the bits required for the opcode and basing a LUT on that is naturally the way to go, but then you have to add checks for all the special instructions that don't conform to the "opcode ra, rb, rc" format. And there are lots of those, too...
 

So much for "RISC" :-D

But, yes, emulating the PPC would be a nightmare :-)