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AuthorTopic: Questions for someone who knows some about ram and roms...  (Read 1672 times)

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Offline rkauer

Re: Questions for someone who knows some about ram and roms...
« Reply #15 on: March 23, 2009, 07:32:22 PM »
Quote

mongo wrote:

There is no way to move RAM from chip memory to fast memory without doing a modification to the motherboard. It can not be done in software.


 http://aminet.net/package/util/boot/halfnhalf :roll:
Goodbye people.

I\'ll pop on from time to time, RL is acting up.
 

Offline mongo

Re: Questions for someone who knows some about ram and roms...
« Reply #16 on: March 23, 2009, 08:14:24 PM »
Quote

rkauer wrote:
Quote

mongo wrote:

There is no way to move RAM from chip memory to fast memory without doing a modification to the motherboard. It can not be done in software.


 http://aminet.net/package/util/boot/halfnhalf :roll:


It's still chip memory, even if the OS thinks it isn't.
 

Offline Zac67

Re: Questions for someone who knows some about ram and roms...
« Reply #17 on: March 23, 2009, 09:41:09 PM »
Yeah. I'd written a simple utility for a friend of mine to solve this problem. This tiny assembler hack set the FASTMEM flag on the CHIPMEM chunk, so the system apparently sees the RAM twice (not really, but Workbench does). Surprisingly (or not so) this caused zero problems since all allocated mem was allocated from both lists - which are always identical, of course.

Back to mongo's post: he's completely right, there's definitely no way to move the RAM address ($080000 to $C00000) without modifying the board jumpers (or maybe an MMU). It simply is physically impossible. :roll:
 

Offline zipper

Re: Questions for someone who knows some about ram and roms...
« Reply #18 on: March 24, 2009, 05:49:25 AM »
Some degraders did also trick 1 MB Chip to act as 0.5 +0.5 "fast".
 

Offline adz

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Re: Questions for someone who knows some about ram and roms...
« Reply #19 on: March 24, 2009, 11:01:37 AM »
Quote

Questions for someone who knows some about ram and roms...


RAM = Random Access Memory

ROM = Read Only Memory


I thought we covered all of this in Computer Acronyms 101?


:lol: :lol: :lol: