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DIR:OUT; SFP:1101; X-OriginatorOrg: superglobalmegacorp.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 May 2021 18:12:24.1495 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6adb6b95-c047-401a-3151-08d92071d079 X-MS-Exchange-CrossTenant-Id: 870ed452-0577-4b7b-90ed-9cac080031b9 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=870ed452-0577-4b7b-90ed-9cac080031b9; Ip=[172.86.181.34]; Helo=[exchange.superglobalmegacorp.local] X-MS-Exchange-CrossTenant-AuthSource: PU1APC01FT033.eop-APC01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SG2PR0201MB2112 Subject: Re: [TUHS] H.J. Lu Bootable Root & Base System disks X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "tuhs@minnie.tuhs.org" Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --_F3F6A69E-A504-477F-BFC6-5F2C13F3C52B_ Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In the CSRG DVD set there is some cci ports of 4.2BSD=E2=80=A6 stuff is #if= def=E2=80=99d Tahoe in there so it=E2=80=99s not hard to pick out but it do= esn=E2=80=99t seem to have anything really documents looking. I could be 100% wrong though, but they just look like =E2=80=98clean=E2=80= =99 source trees. Not sure if sanitized though. The assembler shows 182 opcodes =E2=80=A6 /* * Boot program... arguments passed in r10 and r11 determine * whether boot stops to ask for system name and which device * boot comes from. */ /* r11 =3D 0 -> automatic boot, load file '/vmunix' */ /* r11 =3D 1 -> ask user for file to load */ The stand/boot sounds awefully vax like with r10/r11=E2=80=A6=20 From: Clem Cole Sent: Wednesday, 26 May 2021 11:22 pm To: Lars Brinkhoff Cc: Jason Stevens; tuhs@minnie.tuhs.org Subject: Re: [TUHS] H.J. Lu Bootable Root & Base System disks Really good point -- I saw some years ago, but never owned a copy. =E1=90=A7 On Wed, May 26, 2021 at 3:57 AM Lars Brinkhoff wrote: Jason Stevens wrote: > It took me years of on and off to finally figure out what the heck a > Tahoe even was.=C2=A0 Spoiler for anyone who wasn=E2=80=99t there when it= happened > it=E2=80=99s a Harris HCX-9. > > But then again there is some movement on an RT emulator and there is > the 3b2 stuff so maybe there only needs to be a =E2=80=98push=E2=80=99=E2= =80=A6 Is there even a single shread of documentation though?=C2=A0 It's a dauntin= g task trying to write an emulator based only on inferring the internal workings of the machine from 4.3BSD source code.=C2=A0 Mind, the end result wouldn't be too interesting; hey it works... just like a VAX. --_F3F6A69E-A504-477F-BFC6-5F2C13F3C52B_ Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"

In th= e CSRG DVD set there is some cci ports of 4.2BSD=E2=80=A6 stuff is #ifdef= =E2=80=99d Tahoe in there so it=E2=80=99s not hard to pick out but it doesn= =E2=80=99t seem to have anything really documents looking.

 

I could be 100% wrong tho= ugh, but they just look like =E2=80=98clean=E2=80=99 source trees. Not sure= if sanitized though.

 

The assembler shows 182 opcodes =E2=80=A6

 

/*

*= Boot program... arguments passed in r10 and r11 determine

* whether boot stops to ask for system name and which device

* boot comes from.

*/

 

/*=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 r11 =3D 0 -> automatic boot, load file '/vmunix' */

<= p class=3DMsoNormal>/*=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 r11 =3D 1 -> ask us= er for file to load */

 

The stand/boot sounds awefully vax like with r10/r11=E2=80=A6=

 

From: Clem Cole
Sent: Wednesday,= 26 May 2021 11:22 pm
To: Lars= Brinkhoff
Cc: Jason Stevens; tuhs@minnie.= tuhs.org
Subject: Re: [TUHS] H.J. Lu Bootable Root & Base= System disks

 

=

Really = good point -- I saw some years ago, but never owned a copy.

=E1=90=A7<= /span>

 

<= div>

On Wed, May 26, 2021 at 3:57 AM Lars Brinkhoff <= ;lars@nocrew.org> wrote:

Jason Stevens wrote= :
> It took me years of on and off to finally figure out what the hec= k a
> Tahoe even was.  Spoiler for anyone who wasn=E2=80=99t the= re when it happened
> it=E2=80=99s a Harris HCX-9.
>
> Bu= t then again there is some movement on an RT emulator and there is
> = the 3b2 stuff so maybe there only needs to be a =E2=80=98push=E2=80=99=E2= =80=A6

Is there even a single shread of documentation though?  = It's a daunting
task trying to write an emulator based only on inferring= the internal
workings of the machine from 4.3BSD source code.  Min= d, the end result
wouldn't be too interesting; hey it works... just like= a VAX.

 

= --_F3F6A69E-A504-477F-BFC6-5F2C13F3C52B_--