Re: [Simh] Configuration limitations

On 2018-04-12 23:49, Bob Supnik wrote: SimH's intended purpose was to run historical software in furtherance of computer education. It was not intended as a perfectly accurate emulation of every detail of every architecture. There are compromises in the design to simplify implementation.

Re: [Simh] DZ11 vs DZV/DZQ11

On 2018-04-12 23:05, Mark Pizzolato wrote: I've added this to the pdp11_rq.c to describe these values: /* MediaId Is defined in the MSCP Basic Disk Functions Manual, page 4-37 to 4-38: The media type identifier is a 32-bit number, and it's coded like this: The high 25 bits are 5 characters,

Re: [Simh] DZ11 vs DZV/DZQ11

On Thursday, April 12, 2018 at 12:25 PM, Johnny Billquist wrote: > On 2018-04-12 02:41, Mark Pizzolato wrote: > > On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: > >> On 2018-04-10 10:26, Mark Pizzolato wrote: > >>> On Monday, April 9, 2018 at 11:51 PM, Johnny Billquist wrote: >

[Simh] Configuration limitations

SimH's intended purpose was to run historical software in furtherance of computer education. It was not intended as a perfectly accurate emulation of every detail of every architecture. There are compromises in the design to simplify implementation. One of those, dating back to its

Re: [Simh] DZ11 vs DZV/DZQ11

On Thursday, April 12, 2018 at 1:35 PM, Johnny Billquist wrote: > On 2018-04-12 22:31, Johnny Billquist wrote: > > On 2018-04-12 21:24, Johnny Billquist wrote: > >> On 2018-04-12 02:41, Mark Pizzolato wrote: > >>> On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: > On 2018-04-10

Re: [Simh] DZ11 vs DZV/DZQ11

On 2018-04-12 22:31, Johnny Billquist wrote: On 2018-04-12 21:24, Johnny Billquist wrote: On 2018-04-12 02:41, Mark Pizzolato wrote: On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: On 2018-04-10 10:26, Mark Pizzolato wrote: On Monday, April 9, 2018 at 11:51 PM, Johnny

Re: [Simh] DZ11 vs DZV/DZQ11

On 2018-04-12 21:24, Johnny Billquist wrote: On 2018-04-12 02:41, Mark Pizzolato wrote: On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: On 2018-04-10 10:26, Mark Pizzolato wrote: On Monday, April 9, 2018 at 11:51 PM, Johnny Billquist wrote: On 2018-04-10 00:25, Mark Pizzolato

Re: [Simh] DZ11 vs DZV/DZQ11

On 2018-04-12 16:06, Paul Koning wrote: On Apr 11, 2018, at 8:41 PM, Mark Pizzolato wrote: On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: ... I certainly hope not. Like I said, this is cosmetic. MSCP reports disk size directly, and the id is just for

Re: [Simh] DZ11 vs DZV/DZQ11

On 2018-04-12 02:41, Mark Pizzolato wrote: On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: On 2018-04-10 10:26, Mark Pizzolato wrote: On Monday, April 9, 2018 at 11:51 PM, Johnny Billquist wrote: On 2018-04-10 00:25, Mark Pizzolato wrote: [...] Some OSes leverage the encoded

[Simh] Terminal mux structure(s) (was DZ vs DZV)

The original DZ emulator was originally written by a contributor. He chose a model whereby lines were not explicitly represented by units. In fact, even multiple controllers were not explicitly represented. This model was followed in some other emulators, such as the DHU/V11 and the NOVA QTY.

Re: [Simh] DZ11 vs DZV/DZQ11

> On Apr 11, 2018, at 8:41 PM, Mark Pizzolato wrote: > > On Tuesday, April 10, 2018 at 10:15 AM, Johnny Billquist wrote: >>> >>> ... >> >> I certainly hope not. Like I said, this is cosmetic. MSCP reports disk size >> directly, >> and the id is just for information.