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patrik · 14 October 2021, 19:04

From a user perspective, it is extremely annoying if accelerator memory is added in the Zorro2 range but cannot be DMA:ed - non-working hd-controllers at best, but crashes are common. Doesn’t matter if it is A500 or A2000, there are plenty of common DMA controllers for both (A590/A2091 and GVP* for example).

Was under the impression that the TK accelerators from Matze could handle Z2 DMA?

And just because there have been products in the past doing this, we should not create more of the bad unless we really have to, it is just incompatible and causes problems for users.

14 October 2021, 19:04	#12
patrik Registered User Join Date: Jan 2005 Location: Umeå Age: 43 Posts: 925	From a user perspective, it is extremely annoying if accelerator memory is added in the Zorro2 range but cannot be DMA:ed - non-working hd-controllers at best, but crashes are common. Doesn’t matter if it is A500 or A2000, there are plenty of common DMA controllers for both (A590/A2091 and GVP* for example). Was under the impression that the TK accelerators from Matze could handle Z2 DMA? And just because there have been products in the past doing this, we should not create more of the bad unless we really have to, it is just incompatible and causes problems for users. Last edited by patrik; 14 October 2021 at 19:10.