Welcome, Guest. Please login or register.

Author Topic: How many memory cards onboard?  (Read 1682 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Kronos

  • Resident blue troll
  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 4017
    • Show all replies
    • http://www.SteamDraw.de
Re: How many memory cards onboard?
« on: June 10, 2004, 09:36:30 PM »
@Acill

Yeah, the 68000 has an address-space of 16MB, but that allready includes ROM, Chip-Mem, Ranger-Mem, Chipset, IO .....

8MB is the maximum you can put into the Zorro-slots.
1. Make an announcment.
2. Wait a while.
3. Check if it can actually be done.
4. Wait for someone else to do it.
5. Start working on it while giving out hillarious progress-reports.
6. Deny that you have ever announced it
7. Blame someone else
 

Offline Kronos

  • Resident blue troll
  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 4017
    • Show all replies
    • http://www.SteamDraw.de
Re: How many memory cards onboard?
« Reply #1 on: June 11, 2004, 10:05:27 AM »
Quote

Thomas wrote:

Note that gfx, sound and i/o cards may carry some memory either. All together has to fit into the 8MB range.

Thomas


[nitpick]

Sound and IO-cards won't go into the 8MB, but into the Z2-IO-space, where they can allocate chunks of 64K max.

[super-nitpick]
Same goes for a Picasso2 in segmented mode
[/super-nitpick]

Bridgeboards need 128k and will therefore take some space out of the 8MB. Problem is that all allocations under 2MB still use up a full 2MB-block.

So adding 5 cards with 512K each would only result in 4MB useable RAM.

[nitpick]
1. Make an announcment.
2. Wait a while.
3. Check if it can actually be done.
4. Wait for someone else to do it.
5. Start working on it while giving out hillarious progress-reports.
6. Deny that you have ever announced it
7. Blame someone else