Re: To the 2901 bit slicers out there

2018-01-08 Thread emanuel stiebler via cctalk
On 2018-01-07 19:46, ben via cctalk wrote: > On 1/6/2018 4:01 PM, emanuel stiebler via cctalk wrote: >> On 2017-12-27 21:35, Randy Dawson via cctalk wrote: >> >>> What have you done, with microprogramming this part?  In your >>> architecture,  have you changed the microcode, create an instruction >

Re: To the 2901 bit slicers out there

2018-01-07 Thread ben via cctalk
On 1/6/2018 4:01 PM, emanuel stiebler via cctalk wrote: On 2017-12-27 21:35, Randy Dawson via cctalk wrote: What have you done, with microprogramming this part?  In your architecture,  have you changed the microcode, create an instruction to enhance your machine? I would be interested in any h

Re: To the 2901 bit slicers out there

2018-01-06 Thread emanuel stiebler via cctalk
On 2017-12-27 21:35, Randy Dawson via cctalk wrote: What have you done, with microprogramming this part? In your architecture, have you changed the microcode, create an instruction to enhance your machine? I would be interested in any hardware projects, stories (or even in the FPGA, I hear i

Re: To the 2901 bit slicers out there

2017-12-28 Thread jim stephens via cctalk
On 12/27/2017 8:35 PM, Randy Dawson via cctalk wrote: Since I know there's tons of PDP/11 geniuses here, and other gurus with a NOVA 4, and a Tektronix 4052 guy (I have the 4051): What have you done, with microprogramming this part? In your architecture, have you changed the microcode, cr

Re: To the 2901 bit slicers out there

2017-12-28 Thread Al Kossow via cctalk
On 12/28/17 12:43 AM, Holm Tiffe via cctalk wrote: > The Micorocode Assembler should be here: http://bitsavers.org/bits/AMD/AM29 manuals http://bitsavers.org/pdf/amd/amsys29/

Re: To the 2901 bit slicers out there

2017-12-28 Thread Pete Lancashire via cctalk
Wirewrapped the design in the 2900 family guide sometime in the 70s it even worked. No idea what became of it On Thu, Dec 28, 2017 at 9:53 AM, ben via cctalk wrote: > On 12/27/2017 9:35 PM, Randy Dawson via cctalk wrote: > >> Since I know there's tons of PDP/11 geniuses here, and other gurus w

Re: To the 2901 bit slicers out there

2017-12-28 Thread ben via cctalk
On 12/27/2017 9:35 PM, Randy Dawson via cctalk wrote: Since I know there's tons of PDP/11 geniuses here, and other gurus with a NOVA 4, and a Tektronix 4052 guy (I have the 4051): Well I am not one of them. 2901's seem only on epay now, so lack of parts have kept me from designing with them.

Re: To the 2901 bit slicers out there

2017-12-28 Thread Jon Elson via cctalk
On 28.12.2017 05:35, Randy Dawson via cctalk wrote: What about the coding tools? ADASM? Looks long gone, how do you do microcode today? Oh, I first started out with an assembler macro hack, but it was insanely cumbersome, due to the limits of the macro capability of the Z-80 assembler I

Re: To the 2901 bit slicers out there

2017-12-28 Thread Jon Elson via cctalk
On 12/27/2017 10:35 PM, Randy Dawson via cctalk wrote: Here's my 32-bit 2903 project. It was to roughly emulate an IBM 360. But, I realized there would be an IMMENSE software slog ahead to get a usable computer system. (If I had known about the Unix 360 system, I might have continued with i

Re: To the 2901 bit slicers out there

2017-12-28 Thread Rob Doyle via cctalk
On 12/27/2017 9:35 PM, Randy Dawson via cctalk wrote: Since I know there's tons of PDP/11 geniuses here, and other gurus with a NOVA 4, and a Tektronix 4052 guy (I have the 4051): What have you done, with microprogramming this part? In your architecture, have you changed the microcode, create

Re: To the 2901 bit slicers out there

2017-12-28 Thread Holm Tiffe via cctalk
Randy Dawson via cctalk wrote: > Since I know there's tons of PDP/11 geniuses here, and other gurus with a > NOVA 4, and a Tektronix 4052 guy (I have the 4051): > > > What have you done, with microprogramming this part? In your architecture, > have you changed the microcode, create an instru

Re: To the 2901 bit slicers out there

2017-12-27 Thread Jos Dreesen via cctalk
On 28.12.2017 05:35, Randy Dawson via cctalk wrote: Since I know there's tons of PDP/11 geniuses here, and other gurus with a NOVA 4, and a Tektronix 4052 guy (I have the 4051): What have you done, with microprogramming this part? In your architecture, have you changed the microcode, create

To the 2901 bit slicers out there

2017-12-27 Thread Randy Dawson via cctalk
Since I know there's tons of PDP/11 geniuses here, and other gurus with a NOVA 4, and a Tektronix 4052 guy (I have the 4051): What have you done, with microprogramming this part? In your architecture, have you changed the microcode, create an instruction to enhance your machine? I would be