Accelerator hardware theory

[rkauer]

pyrre wrote:
@alexh

Have you tried? You can get them all over the place for almost nothing.

Really?

Do you have en example website?
I am looking for simm modules

 I have a BOX full of 4 & 8 Mb SIMMs in here. If you want to pay the postage from Brazil, simply PM me saying the quantity (I DO NOT SELL THEM, I'LL GIVE IT 2 U!).

 I'm pretty sure you guys on europe & USA don't have those flea markets around... :roll:

[rkauer]

 Actually, you need to "ask" the original processor to grant the bus takeover.

 This is made by a short "negotiation" between the two chips. The second CPU sends a "BR" (bus request), then the 1st give a "BG" (bus granted). After that, the 2nd CPU sends a BGACK (Bus Granted Acknowledgement) and takes over and the 1st becomes halted (that's why the CPU on the motherboard of the Amiga becomes hot, even if it is not used).

 This works in any Amiga accelerator exactly this way.