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Old 05 August 2012, 13:22   #178
Registered User
Join Date: May 2012
Location: France
Posts: 57
Hello Toni,

Originally Posted by Toni Wilen View Post
Yes but RAM is on CPU board = full speed. A500 Slow RAM is shared with Agnus bus. 0xc00000 does not always mean slow ram, even original A2000 (not "B2000") had real fast at 0xc00000.
OK. So, the speed is more function of "where the RAM is located", because the $C00000 address space can be used as well by AGNUS than by the CPU.

Originally Posted by Toni Wilen View Post
CPU boards with onboard RAM: RAM can be mapped anywhere, even on top of IO or ROM regions. (which of course would not make any sense..)
Like does by accelerator card with more than 8MB fast RAM, I though. (Blizzard, ...)

Please, can you explain me why using the $200000 (AUTOCONFIG / FAST RAM) area will limit the RAM speed to "7Mhz" ? (like said by Jens on the ACA topic)

Thank you.
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