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Author Topic: Mtec 1230LC  (Read 2332 times)

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Offline Piru

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Re: Mtec 1230LC
« on: November 10, 2005, 11:04:29 AM »
@zipper

Nonsense. 68EC030 address full 32-bit.
 

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Re: Mtec 1230LC
« Reply #1 on: November 10, 2005, 11:08:53 AM »
@hppacito
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btw, when an accelerator is "PCMCIA" firendly, where does the RAM reside ?

If the memory is conflicting it resides at 0x00600000 (overlapping this address).

Typically non-conflicting boards have 32-bit address space, that is the memory beginning is at >= 0x01000000.

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And where is the RAM in for example a Blizzard 1230 ???

That depends on the Blizzard model. At least -II, -III and -IV have full 32-bit addressing.
 

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Re: Mtec 1230LC
« Reply #2 on: November 10, 2005, 12:04:27 PM »
@hppacito
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Actually internal to the processor, all addresses are 32 bit.

Not really. 68000, 68010 and 68EC020 ignore the upper 8bit of addresses.

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So... where !?!

You don't need to know.

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how if I find how to add some more mem, is the os going to see it

Avail and ShowConfig.

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do I have to run some soft/driver/oracle-invoquing-techniques ?

With Blizzard, no. The memory is fully 32-bit (not conflicting with PCMCIA) and autoconfig (no need to mess about with jumpers and/or drivers).
 

Offline Piru

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Re: Mtec 1230LC
« Reply #3 on: November 10, 2005, 03:11:23 PM »
@hppacito
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Yes, I need to know, because of the mod I am planning (read above).

I don't see any sensible description of a mod anywhere, explanation what you're trying to do, or why you'd need to know the start address.

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And.. is going to use it, besides showing it ?

!?
Ehh, if it is shown by these tools, it is in use already!

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That sounds like the memory is 32 bits wide (in data).

I didn't say anything about the data width of the memory. It is 32-bit though.

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And the autoconfig part... doesn't say nothing about the actual value to me.

What value?

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Let ask a bit more directly: Do you know the actual address value, or dont ?, if you do, would you tell me ? If you don't can you find it for me ?

The addresses depend on the memory configuration of the board, there is no clear start address, except that it's always >= 0x01000000 to avoid conflicts. If you need to know more than that, disassemble the different Blizzard roms.

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(btw: What is that difficult to understand about what I asked ?)

Why is it so difficult to explain wtf you're trying to do?
 

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Re: Mtec 1230LC
« Reply #4 on: November 10, 2005, 03:12:48 PM »
@zipper
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OK, but several accelerators have max capability of(4 or) 8 MB, because of having just soldered memory or budget controller

Sure, but that's just suckyness of the board design, the total memory size is not limited by the CPU.
 

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Re: Mtec 1230LC
« Reply #5 on: November 10, 2005, 04:53:08 PM »
@hppacito

I seriously doubt that you could expand the memory. Typically these el-cheapo cards had the design fixed to the emount of memory fitted.

Anyway, if the available address is your only worry: You can use anything 0x01000000 .. 0x7fffffff. Well obviously you can't overlap with the existing memory you have, but other than that you're free to use whatever address you like.

In the end you're far better off by just grabbing some Blizzard which can take upto 128 or 256MB.

PS. Not everyone is a mind reader.