Return-Path: Delivered-To: craig@sbc-85.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id KAHOK/dsBWnWyAgAcizydQ (envelope-from ) for ; Fri, 31 Oct 2025 21:14:15 -0500 Return-path: Envelope-to: craig@sbc-85.com Delivery-date: Fri, 31 Oct 2025 21:14:15 -0500 Received: from p-impout008aa.msg.pkvw.co.charter.net ([47.43.26.139]:55356 helo=p-impout008.msg.pkvw.co.charter.net) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.1) (envelope-from ) id 1vF18A-00000002gDC-2axA for craig@sbc-85.com; Fri, 31 Oct 2025 21:14:15 -0500 Received: from GeorgeAdams ([74.131.139.95]) by cmsmtp with ESMTPA id F17xv6MKg4QUtF17yvhMza; Sat, 01 Nov 2025 02:14:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cinci.rr.com; s=c20240129; t=1761963243; bh=hJB1YovEL6KZdA6AxD28PZLoTMH5v1oYP+hYKi1ZOI8=; h=From:To:References:In-Reply-To:Subject:Date; b=ioXkritSr2XSWsseVTWrKHOI/sWpsz21c55rYoo4PFV0jgYs9Y89z3fBLJrCQjiE0 gfc2MidwHafK0t0CBjNF7bsg2Rg95/3yhP9tWbJ84Kcv+NaciZPLnPEbpSJ5jf0Zwm zMfqV3LlF/dmpoybS5v/gV3sMw15McgrE1hgSVXeIG8qzfyxABR/VklWew6jYKXBAW ZxOprn2NFUyzON9muKAzipLsfkFUp2rEhmdlK6+vhdFCxz3No8zbHx/n06rsrlSKo0 w0ZFMrZ3+NOSS+8L2bh8n1NawAjwkRxli0LIklysB9KKT+DGTCGgaTiS24B0DtOFaJ 9JA3Z6uR2D/CA== X-Authority-Analysis: v=2.4 cv=WrEtM8fv c=1 sm=1 tr=0 ts=69056ceb a=hl8TJCE9z2sxp+2MqBjxnA==:117 a=hl8TJCE9z2sxp+2MqBjxnA==:17 a=DAwyPP_o2Byb1YXLmDAA:9 a=eyJnENA8AAAA:8 a=_6GpL_ENAAAA:8 a=HjitWDSJAAAA:8 a=ayC55rCoAAAA:8 a=wVflhX4w_FrECkpSKHoA:9 a=QEXdDO2ut3YA:10 a=KvIUGjmmAAAA:8 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=sagjUFi4eRcOK6DVhhIA:9 a=8QIB2LipOvR8GfUw:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=lqcHg5cX4UMA:10 a=32HgJRMQKz88X0FlR056:22 a=IB1QFG2aBfq3amWdyr0s:22 From: To: References: <000001dc4a00$660d5f00$32281d00$@cinci.rr.com> <18DFDD94-0B32-4C29-9E77-6CA330CA60BA@sbc-85.com> <000201dc4aa3$57c73530$07559f90$@cinci.rr.com> <200601dc4abb$e0ac4bc0$a204e340$@sbc-85.com> In-Reply-To: <200601dc4abb$e0ac4bc0$a204e340$@sbc-85.com> Subject: RE: S100 backplane Again Date: Fri, 31 Oct 2025 22:14:01 -0400 Message-ID: <000201dc4ad5$3162f2d0$9428d870$@cinci.rr.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01DC4AB3.AA557180" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQINK5+hjhw2Fb3Lpuse+geno7EbMQIJiKajAeJ+xMYB1mgqurRNNSzw Content-Language: en-us X-Antivirus: Avast (VPS 251031-6, 10/31/2025), Outbound message X-Antivirus-Status: Clean X-CMAE-Envelope: MS4xfGcrrB0ipf4/o9oGxG29azy0CSNjAWWejYPirzkym0Z1bkq6x4yIZgSSdhajk/HplPzG8fcfFKpZNhyYNyRULmQZQaj83ORqAkvUN08tJVsiEOQx9/3Z 3wmTdXKe12SSqWg0HAlelnuFAOJfx51Eue31QWWMijYH682hOfU9lUmcHmqGiXKMno70jw/acYYeLA== X-Spam-Status: No, score=-4.3 X-Spam-Score: -42 X-Spam-Bar: ---- X-Spam-Flag: NO This is a multipart message in MIME format. ------=_NextPart_000_0003_01DC4AB3.AA557180 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Craig, I remember a quick overview of bit slice chips in the microprocessor classe= s I was in, but no hands on or in depth study. We moved on to the 6800 and = then the 68000 mainly because they had no trainer hardware for bit slice ch= ips. I see the part numbers for the edge connectors for the S100 backplane. The = line 0.125 pitch x 0.2=E2=80=9D row has me confused a bit. 0.125 pitch 2 ro= w and from conflicting data sheets, either 0.2 or 0.25 between rows. Electronic surplus website shows none in stock, but I am a while away from = needing them. If you are still thinking about the 6264 ram board, consider 2 of the 6264 = chips with 4 consecutive 4k blocks similar to the rom board design. Just a = thought. Regards, George From: craig@sbc-85.com Sent: Friday, October 31, 2025 7:13 PM To: adamsgl@cinci.rr.com Subject: RE: S100 backplane Again Hi George, glad they all arrived. I too am busy with the nibbler=E2=80=A6 = and I am still toying with making another card with the 6264 RAM chip. But= if you have any issues with the cards I sent that I haven=E2=80=99t built = yet, I will jump on one and build it so I can catch up. I don=E2=80=99t th= ink there were significant differences from the earlier version but sometim= es even the insignificant changes I can mess something up. Yes, I received the paypal, thanks. Do you have any experience with the AMD2901 bit slice cpu? Regards craig From: adamsgl@cinci.rr.com < adamsgl@cinci.rr.com> Sent: Friday, October 31, 2025 1:17 PM To: 'SBC-85' < craig@sbc-85.com> Subject: FW: S100 backplane Again Craig, The pc boards arrived today, in good condition. Looks like Christmas in Oct= ober!! Lots of new projects to work on!! Thank You!! Regards From: adamsgl@cinci.rr.com < adamsgl@cinci.rr.com> Sent: Friday, October 31, 2025 12:55 PM To: 'SBC-85' < craig@sbc-85.com> Subject: RE: S100 backplane Craig, Thanks for looking up the connector part number. I didn=E2=80=99t see a pla= ce on the website for the backplane schematic, so when you add the part num= ber email it to me as you did earlier. I don=E2=80=99t have access to a 3d printer, but knowing what you did, I sh= ould be able MacGyver a case suitable holding the power supply and the buck= converters. It will be a while before I need the case, as I have a lot of = parts to get, and I am hooked on the nibbler system. I=E2=80=99m guessing the fuses are the mini ATM style? You should have received palpal from me for $45 and then $20. Thanks Again. Regards, George From: SBC-85 < craig@sbc-85.com> Sent: Thursday, October 30, 2025 9:44 PM To: adamsgl@cinci.rr.com Subject: Re: S100 backplane Hi George I will look for an edge connector part number and add it on the schematic. The riden units are just buck converters so they still need a power supply.= I will see what I have as far as documentation. I usually put everything = in a 3d printed box and mount the connector to the bottom of the pcb and th= en put the power supplies inside. I do not have a box for this version of = the board yet. It will be a while before I get around to that. I will let = you know my progress. Do you have a printer or know someone nearby that can= print a box for you? On Oct 30, 2025, at 5:51=E2=80=AFPM, adamsgl@cinci.rr.com wrote: =EF=BB=BF Craig, I started going thru the schematic for the backplane to see what I need to = get. Can you suggest a part number/supplier for the 100 pin connectors? From your video #120, nice idea to use the adjustable power supplies. How d= id you connect the Riden power supplies to the backplane? Thanks Again. Regards, George From: craig@sbc-85.com < craig@sbc-85.com> Sent: Wednesday, October 29, 2025 4:56 PM To: adamsgl@cinci.rr.com Subject: RE: nibbler sytem Ok. Thanks. Everything including the character generator is already in the box and wait= ing for pickup. There was enough to go up to a medium priority box, so you= should see it Saturday probably. Here is tracking # 9405511206217831054806 From: adamsgl@cinci.rr.com < adamsgl@cinci.rr.com> Sent: Wednesday, October 29, 2025 1:52 PM To: craig@sbc-85.com Subject: RE: nibbler sytem Craig, I have Matt Milman=E2=80=99s programmer so I can make use of the 2708 eprom= board. Since you are sending a package my way, include the character generator and= I will paypal you later tonight when I get back home. Thanks Regards, George From: craig@sbc-85.com < craig@sbc-85.com> Sent: Wednesday, October 29, 2025 4:28 PM To: adamsgl@cinci.rr.com Subject: RE: nibbler sytem Note the eprom board uses 2708s so it may not be of interest to you. And i= f you get the video board you will need a mcm6571a character generator chip= =2E Last I saw there were some on ebay but I have some available for $20. Regards craig From: craig@sbc-85.com < craig@sbc-85.com> Sent: Wednesday, October 29, 2025 1:07 PM To: 'adamsgl@cinci.rr.com' < adamsgl@cinci.rr= =2Ecom> Subject: RE: nibbler sytem Here are the schematics for the ssm eprom board and backplane. It turns ou= t the s100 backplane I thought I had was a v0.1 which had some issues which= I can=E2=80=99t remember what they were. So I will need to send you the 0= =2E3 version which I think I did a video on. {120} Regards craig From: adamsgl@cinci.rr.com < adamsgl@cinci.rr.com> Sent: Wednesday, October 29, 2025 12:51 PM To: craig@sbc-85.com Subject: RE: nibbler sytem Craig, Thanks for looking for the boards. Let me know what boards you have and what you want for them and I will payp= al you, don=E2=80=99t forget to include the shipping in your amount. I did not see the backplane schematic on the website. Thanks Again. Regards, George From: craig@sbc-85.com < craig@sbc-85.com> Sent: Wednesday, October 29, 2025 3:18 PM To: adamsgl@cinci.rr.com Subject: RE: nibbler sytem I meant to say if you order from jlcpcb they will add tariffs to the order.= I thought tariff, but I evidently didn=E2=80=99t type it. I found a bare s100 backplane in my garbage you can have. I tried to give = older versions away on the s100 forum somewhere, but nobody wanted it. I saw that I have some bare of the newer blue version of my reproduction SS= M boards but didn=E2=80=99t look to see what they were. Probably cpu and m= emory.. maybe the video card too. But I would have to charge you for those= , I need to look up how much they cost me but probably $15 each all said an= d done. They were before tariffs. That=E2=80=99s funny, I don=E2=80=99t see any memory boards on my website f= or download. Maybe the ones in the pile I have are just video and cpu=E2= =80=A6 I will look later today when I go down there. Regards craig From: SBC-85 < craig@sbc-85.com> Sent: Tuesday, October 28, 2025 7:21 PM To: adamsgl@cinci.rr.com Subject: Re: nibbler sytem Hi George, I like the CB1A I recreated because it has a serial port and can be used as= a single board computer. https://bitsofthegoldenage.org/documentation/ssm-cb1a-w-parallel-io/ I will look to see if I have a bare board. I think I have a bare backplane= =2E If you order from jlcpcb they directly add them to the order. Regards Craig On Oct 28, 2025, at 5:36=E2=80=AFPM, adamsgl@cinci.rr.com wrote: =EF=BB=BF Craig, Thanks for posting the project code, loading the code now, looking forward = to working with the new version. I wanted to ask about another one of your projects. What are you using for = the s100 cpu board? It appears that it may be the workalike for the ssm cb1= /cb1a, and the cb1 a confidence test code. I have been looking for a s100 cpu board and backplane on ebay but found no= thing I am interested in that doesn=E2=80=99t cost a fortune. Can you suggest a board or is the ssm board and backplane you created the b= est solution? It seems to be the best, as most of the ebay hardware is lack= ing on the documentation side. I see you have the build files available, so I can try to find a us based m= anufacturer to make them (I don=E2=80=99t want to get involved with the tar= iffs that are imposed buying out of the country). The S100 systems are where I learned assembly language, without an assemble= r. That=E2=80=99s why I started with your SBC-85 and STD bus cpu cards. Thanks Again. Regards, George From: craig@sbc-85.com < craig@sbc-85.com> Sent: Tuesday, October 28, 2025 3:47 PM To: adamsgl@cinci.rr.com Subject: RE: nibbler sytem Hi George, I have put v017 on the project page. Please let me know if ther= e are any issues. Thanks From: adamsgl@cinci.rr.com < adamsgl@cinci.rr.com> Sent: Tuesday, October 28, 2025 6:16 AM To: 'SBC-85' < craig@sbc-85.com> Subject: RE: nibbler sytem Craig, Just watched your 145 video on the nibbler wrap up. Nice addition to the mo= nitor the E command. Looking forward to running this version on my system. = The project site doesn=E2=80=99t have the code yet. It has 0.1.6.b which do= esn=E2=80=99t have the assembler command. This is a great series and I continue to learn about the processor and writ= ing codefor it. Any idea what processor you will be looking at for your next series?? (8052= , 1802, or something else?). Looking forward to what ever you decide to exp= lore. Thanks Again for the great work. George From: SBC-85 < craig@sbc-85.com> Sent: Sunday, October 26, 2025 1:01 PM To: adamsgl@cinci.rr.com Subject: Re: nibbler sytem Hi George, I saw the tindie order, thanks Somewhere I set aside the last nibbler Ram board for you, but I don=E2=80= =99t remember sending it. So I will mail it also. On Oct 25, 2025, at 11:13=E2=80=AFAM, adamsgl@cinci.rr.com wrote: =EF=BB=BF Craig, Very nice addition to the monitor. This makes it easy to code on the fly an= d not require the assembler for testing. Looking forward to adding this to what I have. Just reviewed your SBC-85 cassette interface video, and that peaked my inte= rest, so I will probably try to get the board from your tindie site today. = Another project to put on the to-work-on later this winter, If only to unde= rstand how it works. Regards, George From: craig@sbc-85.com < craig@sbc-85.com> Sent: Friday, October 24, 2025 8:31 PM To: adamsgl@cinci.rr.com Subject: RE: nibbler sytem Snip from user=E2=80=99s guide From: craig@sbc-85.com < craig@sbc-85.com> Sent: Friday, October 24, 2025 4:41 PM To: 'adamsgl@cinci.rr.com' < adamsgl@cinci.rr= =2Ecom> Subject: RE: nibbler sytem Hi George, A taste of the new =E2=80=98E=E2=80=99 command to enter instructions as mne= monic and operand. Includes a .DA pseudo opcode to enter ascii directly and a .DB to enter hex= bytes. From: adamsgl@cinci.rr.com < adamsgl@cinci.rr.com> Sent: Wednesday, October 22, 2025 1:45 PM To: 'SBC-85' < craig@sbc-85.com> Subject: nibbler sytem Craig, Finally got most of the parts for the ram/rom boards. Everything works great! Backplane only has 3 connectors, but I have enough to fill out as needed. I wish I had put zif sockets on the nibbler board, to swap in/out nibble ba= sic eproms, but this can be fixed with a normal socket under a zif. (maybe = another nibbler board just for nibble basic is in order) Thanks Again for all your help and work on these. Regards, George Virus-free. www.avast.com -- This email has been checked for viruses by Avast antivirus software. www.avast.com ------=_NextPart_000_0003_01DC4AB3.AA557180 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Craig,

 

I remember a quick = overview of bit slice chips in the microprocessor classes I was in, but = no hands on or in depth study. We moved on to the 6800 and then the = 68000 mainly because they had no trainer hardware for bit slice = chips.

 

I see the part = numbers for the edge connectors for the S100 backplane. The line 0.125 = pitch x 0.2=E2=80=9D row has me confused a bit. 0.125 pitch 2 row and = from conflicting data sheets, either 0.2 or 0.25 between rows. =

Electronic surplus website shows none in = stock, but I am a while away from needing them.

 

If you are still = thinking about the 6264 ram board, consider 2 of the 6264 chips with 4 = consecutive 4k blocks similar to the rom board design. Just a thought. =

 

Regards,

 

George

 

From:<= /b> = craig@sbc-85.com <craig@sbc-85.com>
Sent: Friday, = October 31, 2025 7:13 PM
To: = adamsgl@cinci.rr.com
Subject: RE: S100 backplane = Again

 

Hi George, glad they all arrived.  I too = am busy with the nibbler=E2=80=A6 and I am still toying with making = another card with the 6264 RAM chip.  But if you have any issues = with the cards I sent that I haven=E2=80=99t built yet, I will jump on = one and build it so I can catch up.  I don=E2=80=99t think there = were significant differences from the earlier version but sometimes even = the insignificant changes I can mess something = up.

 

Yes, I received the = paypal, thanks.

 

Do you have any = experience with the AMD2901 bit slice cpu?

 

Regards

 

craig

 

From:<= /b> = adamsgl@cinci= .rr.com = <adamsgl@cinci= .rr.com> =
Sent: Friday, October 31, 2025 1:17 PM
To: 'SBC-85' = <craig@sbc-85.= com>
Su= bject: FW: S100 backplane Again

 

Craig,

 

The pc boards arrived = today, in good condition. Looks like Christmas in October!! Lots of new = projects to work on!!

 

Thank = You!!

 

Regards

 

From:<= /b> = adamsgl@cinci= .rr.com = <adamsgl@cinci= .rr.com> =
Sent: Friday, October 31, 2025 12:55 PM
To: = 'SBC-85' <craig@sbc-85.= com>
Su= bject: RE: S100 backplane

 

Craig,

 

Thanks for looking up = the connector part number. I didn=E2=80=99t see a place on the website = for the backplane schematic, so when you add the part number email it to = me as you did earlier.

 

I don=E2=80=99t have = access to a 3d printer, but knowing what you did, I should be able = MacGyver a case suitable holding the power supply and the buck = converters. It will be a while before I need the case, as I have a lot = of parts to get, and I am hooked on the nibbler system. =

 

I=E2=80=99m guessing = the fuses are the mini ATM style?

 

You should have = received palpal from me for $45 and then $20.

 

Thanks = Again.

 

Regards,

 

George

 

From:<= /b> = SBC-85 <craig@sbc-85.= com> =
Sent: Thursday, October 30, 2025 9:44 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: Re: S100 backplane

 

Hi = George

I will look for an = edge connector part number and add it on the = schematic.

 

The riden units are just buck converters so they still = need a power supply. I will see what I have as far as documentation. =  I usually put everything in a 3d printed box and mount the = connector to the bottom of the pcb and then put the power supplies = inside.  I do not have a box for this version of the board yet. It = will be a while before I get around to that.  I will let you know = my progress. Do you have a printer or know someone nearby that can print = a box for you?

 

On Oct 30, 2025, at 5:51=E2=80=AFPM, adamsgl@cinci.rr.com = wrote:

=EF=BB=BF

=

Craig,

 

I started going thru = the schematic for the backplane to see what I need to get. Can you = suggest a part number/supplier for the 100 pin = connectors?

 

From your video #120, = nice idea to use the adjustable power supplies. How did you connect the = Riden power supplies to the backplane?

 

Thanks = Again.

 

Regards,

 

George

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Wednesday, October 29, 2025 4:56 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: RE: nibbler sytem

 

Ok. Thanks.

 

Everything including = the character generator is already in the box and waiting for = pickup.  There was enough to go up to a medium priority box, so you = should see it Saturday probably.  Here is tracking = #

 

94055112062178310548= 06

 

 

 

From:<= /b> = adamsgl@cinci= .rr.com = <adamsgl@cinci= .rr.com> =
Sent: Wednesday, October 29, 2025 1:52 PM
To: = craig@sbc-85.= com
Subjec= t: RE: nibbler sytem

 

Craig,

 

I have Matt = Milman=E2=80=99s programmer so I can make use of the 2708 eprom = board.

 

Since you are sending = a package my way, include the character generator and I will paypal you = later tonight when I get back home.

 

Thanks

 

Regards,

 

George

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Wednesday, October 29, 2025 4:28 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: RE: nibbler sytem

 

Note the eprom board uses 2708s so it may not = be of interest to you.  And if you get the video board you will = need a mcm6571a character generator chip.  Last I saw there were = some on ebay but I have some available for $20.

 

Regards

craig

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Wednesday, October 29, 2025 1:07 PM
To: = 'adamsgl@cinci.rr.com' <adamsgl@cinci= .rr.com>
Su= bject: RE: nibbler sytem

 

Here are the schematics for the ssm eprom = board and backplane.  It turns out the s100 backplane I thought I = had was a v0.1 which had some issues which I can=E2=80=99t remember what = they were.  So I will need to send you the 0.3 version which I = think I did a video on. {120}

 

Regards

craig

 

From:<= /b> = adamsgl@cinci= .rr.com = <adamsgl@cinci= .rr.com> =
Sent: Wednesday, October 29, 2025 12:51 PM
To: = craig@sbc-85.= com
Subjec= t: RE: nibbler sytem

 

Craig,

Thanks for looking = for the boards.

 

Let me know what = boards you have and what you want for them and I will paypal you, = don=E2=80=99t forget to include the shipping in your = amount.

 

I did not see the = backplane schematic on the website.

 

Thanks = Again.

 

Regards,

 

George

 

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Wednesday, October 29, 2025 3:18 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: RE: nibbler sytem

 

I meant to say if you order from jlcpcb they = will add tariffs to the order.  I thought tariff, but I evidently = didn=E2=80=99t type it.

 

I found a bare s100 = backplane in my garbage you can have.  I tried to give older = versions away on the s100 forum somewhere, but nobody wanted = it.

I saw that I have some bare of the newer blue = version of my reproduction SSM boards but didn=E2=80=99t look to see = what they were.  Probably cpu and memory.. maybe the video card = too.  But I would have to charge you for those, I need to look up = how much they cost me but probably $15 each all said and done.  = They were before tariffs.

 

That=E2=80=99s funny, = I don=E2=80=99t see any memory boards on my website for download.  = Maybe the ones in the pile I have are just video and cpu=E2=80=A6 I will = look later today when I go down there.

 

Regards

craig

 

From:<= /b> = SBC-85 <craig@sbc-85.= com> =
Sent: Tuesday, October 28, 2025 7:21 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: Re: nibbler sytem

 

Hi = George,

I like the CB1A I = recreated because it has a serial port and can be used as a single board = computer.

 

 

I = will look to see if I have a bare board.  I think I have a bare = backplane. 

If you = order from jlcpcb they directly add them to the = order.

 

Regards

Craig

 

On Oct 28, 2025, at 5:36=E2=80=AFPM, adamsgl@cinci.rr.com = wrote:

=EF=BB=BF

=

Craig,

 

Thanks for posting = the project code, loading the code now, looking forward to working with = the new version.

 

I wanted to ask about = another one of your projects. What are you using for the s100 cpu board? = It appears that it may be the workalike for the ssm cb1/cb1a, and the = cb1 a confidence test code.

I have been looking = for a s100 cpu board and backplane on ebay but found nothing I am = interested in that doesn=E2=80=99t cost a = fortune.

 

Can you suggest a = board or is the ssm board and backplane you created the best solution? = It seems to be the best, as most of the ebay hardware is lacking on the = documentation side.

 

I see you have the = build files available, so I can try to find a us based manufacturer to = make them (I don=E2=80=99t want to get involved with the tariffs that = are imposed buying out of the country).

 

The S100 systems are = where I learned assembly language, without an assembler. That=E2=80=99s = why I started with your SBC-85 and STD bus cpu cards. =

 

Thanks = Again.

 

Regards,

 

George

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Tuesday, October 28, 2025 3:47 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: RE: nibbler sytem

 

Hi George, I have put v017 on the project = page.  Please let me know if there are any issues.  = Thanks

 

 

From:<= /b> = adamsgl@cinci= .rr.com = <adamsgl@cinci= .rr.com> =
Sent: Tuesday, October 28, 2025 6:16 AM
To: = 'SBC-85' <craig@sbc-85.= com>
Su= bject: RE: nibbler sytem

 

Craig,

 

Just watched your 145 = video on the nibbler wrap up. Nice addition to the monitor the E = command. Looking forward to running this version on my system. The = project site doesn=E2=80=99t have the code yet. It has 0.1.6.b which = doesn=E2=80=99t have the assembler command.

 

This is a great = series and I continue to learn about the processor and writing codefor = it.

 

Any idea what = processor you will be looking at for your next series?? (8052, 1802, or = something else?). Looking forward to what ever you decide to = explore.

 

Thanks Again for the = great work.

 

George

 

 

From:<= /b> = SBC-85 <craig@sbc-85.= com> =
Sent: Sunday, October 26, 2025 1:01 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: Re: nibbler sytem

 

Hi = George, I saw the tindie order, thanks

 

Somewhere I set aside the last nibbler Ram board for = you, but I don=E2=80=99t remember sending it. So I will mail it = also. 

 

On Oct 25, 2025, at 11:13=E2=80=AFAM, adamsgl@cinci.rr.com = wrote:

=EF=BB=BF

=

Craig,

 

Very nice addition to = the monitor. This makes it easy to code on the fly and not require the = assembler for testing.

 

Looking forward to = adding this to what I have.

 

Just reviewed your = SBC-85 cassette interface video, and that peaked my interest, so I will = probably try to get the board from your tindie site today. Another = project to put on the to-work-on later this winter, If only to = understand how it works.

 

Regards,

 

George

 

 

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Friday, October 24, 2025 8:31 PM
To: = adamsgl@cinci= .rr.com
Subjec= t: RE: nibbler sytem

 

Snip from user=E2=80=99s = guide

 

From:<= /b> = craig@sbc-85.= com = <craig@sbc-85.= com> =
Sent: Friday, October 24, 2025 4:41 PM
To: = 'adamsgl@cinci.rr.com' <adamsgl@cinci= .rr.com>
Su= bject: RE: nibbler sytem

 

Hi George,

 

A taste of the new = =E2=80=98E=E2=80=99 command to enter instructions as mnemonic and = operand. 

Includes a .DA pseudo opcode to enter ascii = directly and a .DB to enter hex bytes.

 

<image001.png>

 

From:<= /b> = adamsgl@cinci= .rr.com = <adamsgl@cinci= .rr.com> =
Sent: Wednesday, October 22, 2025 1:45 PM
To: = 'SBC-85' <craig@sbc-85.= com>
Su= bject: nibbler sytem

 

Craig,

 

Finally got most of = the parts for the ram/rom boards.

<image002.png>

 

Everything works = great!

 

Backplane only has 3 = connectors, but I have enough to fill out as = needed.

 

I wish I had put zif = sockets on the nibbler board, to swap in/out nibble basic eproms, but = this can be fixed with a normal socket under a zif. (maybe another = nibbler board just for nibble basic is in order)

 

Thanks Again for all = your help and work on these.

 

Regards,

 

George

 

 

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