Yeah I use that mode on my U64 with GEOS and Megapatch 3. With the 16MB emulated RAM expansion you can create the maximum 9 slots for applications to DMA between so app switching takes one screen refresh and is effectively instant for the user, fully buffer disks to RAM, boot GEOS from RAM, and still have memory unused. Justin > On May 4, 2023, at 13:49, smf <smf_at_null.net> wrote: > > What I found when Gideon added 48mhz support to the Ultimate 64, is that floppy disks are kinda pointless. > > With all that power you really want some kind of mass storage device. > > Only having 64k of directly addressable ram is also pretty limiting, the SuperCPU's 65816 does a better job here. > > On 04/05/2023 19:36, Justin wrote: > >> (though I could see it being nice in extended use for something like GEOS), > --Apple-Mail=_5253F6D3-6F42-46D2-9560-0B122D896D35 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCCd4w ggS8MIIDpKADAgECAhB4SqkSGNGkJghRPNNmVUOjMA0GCSqGSIb3DQEBCwUAMEwxIDAeBgNVBAsT F0dsb2JhbFNpZ24gUm9vdCBDQSAtIFIzMRMwEQYDVQQKEwpHbG9iYWxTaWduMRMwEQYDVQQDEwpH bG9iYWxTaWduMB4XDTIwMDkxNjAwMDAwMFoXDTI5MDMxODAwMDAwMFowWzELMAkGA1UEBhMCQkUx 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