Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Mark Pizzolato
On Tuesday, February 20, 2018 at 9:29 PM, Zane Healy wrote: > > On Feb 20, 2018, at 8:56 PM, Mark Pizzolato wrote: > > > > TQ limited to 2000GB means a limit of 2TB. Do you have disks on the > > AXP system that big? > > Unfortunately the 2000GB is a typo on my part. A 2GB

Re: [Simh] TOPS-10 question

2018-02-20 Thread Lars Brinkhoff
Quentin North wrote: > Im trying to get the BCPL compiler on TOPS-10 going Which one? It would be interesting to have Essex BCPL and see if it's possible to build the Trubshaw & Bartle MUD. ___ Simh mailing list Simh@trailing-edge.com

Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Zane Healy
> On Feb 20, 2018, at 8:56 PM, Mark Pizzolato wrote: > > TQ limited to 2000GB means a limit of 2TB. Do you have disks on the AXP > system > that big? Unfortunately the 2000GB is a typo on my part. A 2GB “tape" is too small for me, and has been for a long time. From the

Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Mark Pizzolato
On Tuesday, February 20, 2018 at 7:59 PM, Zane Healy wrote: > > On Feb 20, 2018, at 1:58 PM, Mark Pizzolato wrote: > > > > I would actually attribute the 'improved' behavior to the fact that tape > > I/O to > TQ > > and XQ devices is asynchronous in the latest code. > > > > I

Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Zane Healy
> On Feb 20, 2018, at 8:17 PM, Larry Baker wrote: > > You should be able to write an ODS-5 backup save set to an ODS-2 disk image > on your SIMH VAX. It may help you decide whether the cluster I/O or the > virtual tape drive is the culprit crashing your VAX. Make the VAX

Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Larry Baker
Zane, > On Feb 20, 2018, at 7:58 PM, simh-requ...@trailing-edge.com wrote: > > Date: Tue, 20 Feb 2018 19:58:31 -0800 > From: Zane Healy > > To: Mark Pizzolato > > Cc: simh

Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Zane Healy
> On Feb 20, 2018, at 1:58 PM, Mark Pizzolato wrote: > > I would actually attribute the 'improved' behavior to the fact that tape I/O > to TQ > and XQ devices is asynchronous in the latest code. > > I would seriously consider Mr Baker's suggestion of backing up to simh

[Simh] MOP header specs?

2018-02-20 Thread Tim Stark
Folks, Does anyone know any documentation provides some information about MOP header in SYS files? Look at first 256 bytes of SYS files: : A8 00 30 00 44 00 58 00-00 00 00 00 30 32 30 35 |..0.D.X.0205| 0010: 01 01 00 00 FF FF FF FF-FF FF FF FF 00 00 00 00

Re: [Simh] TOPS-10 question

2018-02-20 Thread Timothe Litt
On 20-Feb-18 21:46, Rich Alderson wrote: >> From: Quentin North >> Date: Tue, 20 Feb 2018 22:15:05 + >> Im trying to get the BCPL compiler on TOPS-10 going and I have the install >> CTL >> file which sets out the following pre-requisites: >> ; THE FOLLOWING MODS TO

Re: [Simh] TOPS-10 question

2018-02-20 Thread Rich Alderson
> From: Quentin North > Date: Tue, 20 Feb 2018 22:15:05 + > Im trying to get the BCPL compiler on TOPS-10 going and I have the install CTL > file which sets out the following pre-requisites: > ; THE FOLLOWING MODS TO THE SYSTEM/CUSPS ARE ESSENTIAL TO THE SMOOTH ; >

[Simh] TOPS-10 question

2018-02-20 Thread Quentin North
Hi all Im trying to get the BCPL compiler on TOPS-10 going and I have the install CTL file which sets out the following pre-requisites: THE FOLLOWING MODS TO THE SYSTEM/CUSPS ARE ESSENTIAL TO THE SMOOTH ; ; RUNNING OF BCPL PROGRAMS: ; ;

Re: [Simh] VAX Tape Emulation?

2018-02-20 Thread Larry Baker
Zane > On Feb 20, 2018, at 9:00 AM, simh-requ...@trailing-edge.com wrote: > > Date: Mon, 19 Feb 2018 21:55:00 -0800 > From: Zane Healy > > To: Zane Healy > > Cc: simh