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Old 15 February 2003, 15:15   #12
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 19,657
Quote:
I already trying to mail you, but the email you offering into the WinUAE docs did not work
What address? What doc-file? Which version of WinUAE?

Quote:
The point it, that since it gets very very rarely used, then using it SHOULD and possibly WILL cause problems - especialy into some hacky Amiga programs "expecting" fastram memory at certain allocations
UAE's Z3 fast RAM = RAM that requires 32-bit address = any memory expansion that requires 68020 or better CPU. 24-bit address space (68EC020 or lower) can support max about 9.5 of fast RAM.

You are right about WinUAE's 32-bit fast being located at "strange" address (0x10000000 instead of more "standard" 0x80000000) but that is requirement for working JIT-support. You can't allocate much more than about 2.5GB of virtual memory space for JIT under Windows.

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especialy into some hacky Amiga programs "expecting" fastram memory at certain allocations
There are programs that expect 32-bit memory expansion being at certain location? Urgh..

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According to the docs about memory allocation space, there can be UP to 128MB of fastram
What doc? I think this limitation is due to max size of SIMMs or something like that, this can't be real Amiga hardware limitation.
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