Dolphin DOS rom - Githubissues

dirkwhoffmann / virtualc64

VirtualC64 is a cycle-accurate C64 emulator for macOS

https://dirkwhoffmann.github.io/virtualc64

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Dolphin DOS rom #684

Closed PakkunKinoppi closed 3 years ago

PakkunKinoppi commented 3 years ago

Hello, how can I load this rom (Dolphin DOS) which is a quick accelerator for Drive to work?

DolphinDOS_2.0.zip

https://rr.pokefinder.org/wiki/Dolphin_DOS_Manual_Project64.txt

dirkwhoffmann commented 3 years ago

This Rom is not supported (yet). DolphinDOS extends the Drive RAM and requires a special cable which has to be connected to the user port.

mithrendal commented 3 years ago

I friend of mine had this back then ... it was so fast ... unbelievable fast ... I bet it was faster than todays SSDs ... no ? ok ... but at least it felt the same speed .... back then ... 🤓 ... they should bring a DolphinSSD would be a instant buy ... no ?

Alessandro1970 commented 3 years ago

Oh yes …but there is something faster: https://vintageisthenewold.com/jiffydos-mod-for-dolphin-dos-kernal/

https://csdb.dk/release/?id=137270

Alessandro1970 commented 3 years ago

There ia a dolphin dos remake in 2013

https://csdb.dk/release/?id=120055

dirkwhoffmann commented 3 years ago

The next release will offer support for Dolphin DOS 2:

Here is a brief comparison of different speeders (test case is loading the Goonies game, 167 Blocks):

Original drive: 1:44 min
SpeedDOS+: 26 sec
Action Replay 7.5: 8 sec
Dolphin DOS 2: 5 sec

Based on these numbers, the silver medal goes to AR 7.5. This is astonishing, because AR 7.5 is a simple cartridge that does not require any hardware modification. It loads faster via the standard serial interface than SpeedDOS+ via the parallel cable.

Alessandro1970 commented 3 years ago

Yes, you are right. But with VirtualC64 I think that I will choose the Dolphin because it is cool and the cartridge slot is free. Thank you, this is really a great update for me. Bye

dirkwhoffmann commented 3 years ago

Available in v4.3 which is now online.

Please reopen if there are any issues with the new cable.

dirkwhoffmann commented 3 years ago

A problem with the old implementation was that the user had to configure multiple drive parameters manually to make custom ROMs work. E.g., Dolphin DOS 3 expects expansion RAM at $6000 whereas the Dolphin DOS 1 and Dolphin DOS 2 expect expansion RAM at $8000.

To cope with this inconvenience, I've implemented a new auto-config option for drives:

When this option is enabled, the drive settings are updated automatically when a known ROM is installed. E.g., when dragging in the Dolphin DOS 3 ROM, the configuration automatically changes to:

With the new option, it's much simpler to use HW-based drive accelerators as it is no longer necessary to remember any hardware details.

BTW, Dolphin DOS 3 will work in the next release, too.

Alessandro1970 commented 3 years ago

Great ! It will be really simple !