29 Jan
2001
29 Jan
'01
2:24 a.m.
Hi all,
I'm working on a new version of my Vtserver, which allows a PDP-11
with no tape drive to boot from a Unix/Linux server (via serial cable) and
install a UNIX. See ftp://minnie.cs.adfa.edu.au/pub/PDP-11/Vtserver
At present I'm working on a new version which uses the 2.11BSD boot code
so as to support more disk drives. The work in progress is at:
http://minnie.cs.adfa.edu.au/Vtserver. At present it's not usable
unless you have a PDP-11/45.
I've got a potential user with an 11/34, two RK05s and a DZ-11. I can't
find any details of DZ-11 here in my peripherals handbooks, and the 2.11
kernel drivers are a bit too complicated to read.
My existing KL-11 driver is below. Can someone come up with a standalone
equivalent for a DZ-11, or point me at some docs?
I'll be away from 1st to 14th Feb, so there may be some delays in
responding.
Thanks all,
Warren
struct vtdevice {
int rcsr,rbuf;
int tcsr,tbuf;
};
#define NVT 2
struct vtdevice *VTcsr[NVT + 1] = {
(struct vtdevice *)0176500, /* We use VTcsr[0] unit 1 */
(struct vtdevice *)0,
(struct vtdevice *)-1
};
/* Get a character, or timeout and return with hitim zero */
char vtgetc()
{
register c;
VTcsr[0]->rcsr = 1; hitim=3; lotim=65535;
while ((VTcsr[0]->rcsr&0200)==0) {
lotim--;
if (lotim==0) hitim--;
if (hitim==0) { putchar('t'); return(0); }
}
c = VTcsr[0]->rbuf; return(c);
}
vtputc(c)
register c;
{
register s;
while((VTcsr[0]->tcsr&0200) == 0) ;
s = VTcsr[0]->tcsr;
VTcsr[0]->tcsr = 0; VTcsr[0]->tbuf = c; VTcsr[0]->tcsr = s;
}
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From Robin Birch <robin(a)ruffnready.co.uk> Tue Jan
30 00:11:33 2001
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Message-ID: <RQsFELAVoXd6EwKY(a)ruffnready.co.uk>
Date: Mon, 29 Jan 2001 14:11:33 +0000
To: wkt(a)cs.adfa.edu.au
Cc: PDP-11 Unix Preservation Society <pups(a)minnie.cs.adfa.edu.au>
From: Robin Birch <robin(a)ruffnready.co.uk>
Subject: Re: [pups] Help! Standalone DZ-11 driver
References: <200101290124.f0T1Ois26299(a)henry.cs.adfa.edu.au>
In-Reply-To: <200101290124.f0T1Ois26299(a)henry.cs.adfa.edu.au>
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Warren,
Why not do this as a terminal emulator that can switch into emulating a
tape drive by some start/stop messaging using the console device. You
could upload a simple bootstrap using ODT that could then read a more
complex boot driver in. If you use the console then that shoud be
universal across all PDP11s.
Robin
In message <200101290124.f0T1Ois26299(a)henry.cs.adfa.edu.au>, Warren
Toomey <wkt(a)henry.cs.adfa.edu.au> writes
Hi all,
I'm working on a new version of my Vtserver, which allows a PDP-11
with no tape drive to boot from a Unix/Linux server (via serial cable) and
install a UNIX. See ftp://minnie.cs.adfa.edu.au/pub/PDP-11/Vtserver
At present I'm working on a new version which uses the 2.11BSD boot code
so as to support more disk drives. The work in progress is at:
http://minnie.cs.adfa.edu.au/Vtserver. At present it's not usable
unless you have a PDP-11/45.
I've got a potential user with an 11/34, two RK05s and a DZ-11. I can't
find any details of DZ-11 here in my peripherals handbooks, and the 2.11
kernel drivers are a bit too complicated to read.
My existing KL-11 driver is below. Can someone come up with a standalone
equivalent for a DZ-11, or point me at some docs?
I'll be away from 1st to 14th Feb, so there may be some delays in
responding.
Thanks all,
Warren
struct vtdevice {
int rcsr,rbuf;
int tcsr,tbuf;
};
#define NVT 2
struct vtdevice *VTcsr[NVT + 1] = {
(struct vtdevice *)0176500, /* We use VTcsr[0] unit 1 */
(struct vtdevice *)0,
(struct vtdevice *)-1
};
/* Get a character, or timeout and return with hitim zero */
char vtgetc()
{
register c;
VTcsr[0]->rcsr = 1; hitim=3; lotim=65535;
while ((VTcsr[0]->rcsr&0200)==0) {
lotim--;
if (lotim==0) hitim--;
if (hitim==0) { putchar('t'); return(0); }
}
c = VTcsr[0]->rbuf; return(c);
}
vtputc(c)
register c;
{
register s;
while((VTcsr[0]->tcsr&0200) == 0) ;
s = VTcsr[0]->tcsr;
VTcsr[0]->tcsr = 0; VTcsr[0]->tbuf = c; VTcsr[0]->tcsr = s;
}
____________________________________________________________________
Robin Birch robin(a)ruffnready.co.uk
M1ASU/2E0ARJ/M5ABD Old computers and radios always welcome