[Simh] More than 4 Drives ?

[Tim Riker]

I think simh should reverse this. Much of this hardware can handle
multiple cards of the same type in different slots. I wish it was more
like (for hp2100 tape drives):

sim> set dev30=msc0
sim> set msc0 13183a fasttime enabled
sim> set dev32=msc1
sim> set msc1 13183a fasttime enabled
sim> set msc0,0 reel=0
sim> attach msc0,0 msc0,0.img
...
sim> set msc0,3 reel=0
sim> attach msc0,3 msc0,3.img
sim> set msc1,0 reel=0
sim> attach msc1,0 msc1,0.img
...
sim> set msc1,3 reel=0
sim> attach msc1,3 msc1,3.img

this would mean that all devices would need a [0-n] designation, but
would allow consistant multiple attachment. I realise some
re-organization would be required, but I think it would be worth the effort.

course I don't know if anyone really wants 8 mag tape drives. =) but the
concept would be the same for disc controllers etc.

I'm not sure what I'd recommend for interfaces like the MSC that need
multiple controllers. Should dev31 and dev33 need to be specified as
well? Should they be assumed? what would a "sh con" look like?

Ah well. you get the idea at least.

A.Bucher at alcatel.de wrote:
> if you need more than 4 disk drives emulated, you can activate the 
> emulation of up to 4 MSCP controllers:
> 
> sim> set rqb enabled
> sim> set rqc enabled
> sim> set rqd enabled
> 
> (rq aka rqa is enabled by default)
> 
> this gives you a total of 4x4=16 drives.
> now you can define the characteristics of each drive as for rq, like:
> 
> sim> set rqb0 ra92 (standard RA92)
> sim> set rqc2 rauser=4000  (ra81 like drive with 4GB)
> sim> set rqd4 cdrom
> 
> and attach the physical disk image files as necessary.
> if you really want more than 4 drives per controller, I think you need to
> modify the source code and recompile.
-- 
Tim Riker - http://rikers.org/ - TimR at Debian.org
Embedded Linux Technologist
BZFlag maintainer - http://BZFlag.org/ - for fun!