[Coco] ok i am learning but not fast enough

[Bill Pierce]

Tormod, the whole idea of HDBDOS/RGBDOS and OS9 being on the same VHD/HD is that a user has access to both and a choice as to which he wants to use at any given time without switching VHD or "DRIVE#"... Not just a way to get to OS9. If one wanted to JUST use OS9, then yes, DW4DOS would be the way to go.
And the original post was about using the RGBDOS VHD on a real Coco which IS populated by both RSDOS and OS9 software, not just about booting straight into OS9. That image is equipped with a EmuDsk boot and they wanted to replace it with a boot for DW4 so they could use BOT RSDOS and OS9 on their real Coco. The post wasn't about just about booting into OS9.

No, EmuDsk is not a true emulation, it is a leftover of a quick hack by Alan deKok from Jeff Vavsour's Coco3 emulator, which was the first Coco emulator and has been used by everyone since (including Mess and Vcc), BUT the whole idea of the RGBDOS/HDBDOS/OS9 IS an emulation of a real Coco system.
The Kenton hard drive (from which this whole concept is derived) used RGBDOS (from which the current RGBDOS and HDBDOS are derived) and allowed (on a real Coco & SCSI HD) the RSDOS & OS9 partition on a single HD, exactly as it is presented in the RGBDOS/HDBDOS/OS9 dual partition VHDs.

VCC has had the "Glenside IDE" emulation since v1.42, and it is a hardware emulation. It works identical to the Glenside and SuperIDE controllers and allows both master and slave VHDs. Just use the "SuperIDE.dll". It will use the non-dw4/becker "HDBLBA.rom" version of HDBDOS without modification.

 

 


Bill Pierce
"Charlie stole the handle, and the train it won't stop going, no way to slow down!" - Ian Anderson - Jethro Tull

 

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-----Original Message-----
From: Tormod Volden <lists.tormod at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Fri, Feb 19, 2016 1:23 pm
Subject: Re: [Coco] ok i am learning but not fast enough

I don't see the need for mixing HDBDOS into this, if you just want torun NitrOS-9.Again, I understand the usefulness of the HDBDOS/OS-9 combination on areal system with one hard drive and no floppy. But since you are usingan emulator and not even emulating the hard drive but using anemulator-only device I don't see the need to make things socomplicated, at least for starters just wanting to run NitrOS-9 onVCC. If you want as closely as possible to emulate the complexity ofthe real one-hard-drive system that is a different case. But then youwould want to emulate the real hard drive. BTW, XRoar has experimentalsupport for the Glenside IDE interface, maybe of interest to VCCdevelopers.And, if we are talking about real machines running DriveWire (I thinkthat was the original poster's intention) and not emulators, you havemultiple drives on the DriveWire server so there is no reason forsplitting drives even if you want both HDBDOS and NitrOS-9.It seems that many people like to do this. I am just pointing out thatit is not needed, in case some people think they have to do it thisway.Tormod-- Coco mailing listCoco at maltedmedia.comhttps://pairlist5.pair.net/mailman/listinfo/coco