test-drb January 2017

test-drb@ccmp.vtda.org

198 participants
283 discussions

Were C64's used in editing video like the Amigas - also need Amiga keyboard?

by COURYHOUSE＠aol.com

Were C64's used in editing video like the Amigas - also need Amiga keyboard? Were Commodore 64's used in editing video like the Amigas were to any extent? Looking to figure if there is an overlap area in yet another area of our displays we can do between computing and video production. We have a Amiga, 2000 desk top type, with a video toaster in it that needs a keyboard and factory mouse! Can anyone help? Thanks Ed# _www.smecc.org_ (http://www.smecc.org)

7 years, 11 months

Banner Panels

by rodsmallwood52＠btinternet.com

Hi Guys I have had a quick word with the girls down at the silk screen shop. Banner panels 18 1/2 by 3 5/16 silk screened on 1mm Aluminum look to be doable I don't know how many different types there were. Regardless of if you need a replacement and you have not sent me picture a head on shot would really help Rod (Panelman) Smallwood -- PDP-8/e PDP-8/f PDP-8/m PDP-8/i Front Panels ex Stock - Order Now

7 years, 11 months

Sol Terminal Color Photo, and PROMs

by vintagecomputer＠bettercomputing.net

Hey guys, Does anyone know if any color photos exist of the Sol 'Intelligent Terminal' that appeared on the cover of Popular Electronics, July 1976? I just discovered that that Keytronics keyboard I bought on ebay (the one parted out from a mystery 8080 terminal of some sort) is the same one they used for the PE cover unit. I found the artwork tonight on sol20.org for the original PCB. If I could find a color photo it'd at least be possible to build a replica of that unit someday. I was curious too if anyone knew the story behind the four optional PROM ICs that could be installed on the board. The article only says 'Optional, write in for details'. Can't find any more info than that anywhere. I understand Processor Technology sort of dodged around PE's reluctance to publish any more computer articles, and I'm wondering if the terminal could be turned into a full blown computer with the aid of those PROMs. To refresh - this is the keyboard I bought. https://drive.google.com/file/d/0B4pq0-BHd2x6eHNhTWVGZkhxRFk/view?usp=sharin g Definitely seems to be the same one - just different colors and legends on the keys themselves. Brad

7 years, 11 months

Aliens film set equipment identification

by curiousmarc3＠gmail.com

Can you ID the following equipment? Melissa, a digital artist who has to reconstruct the set of the movie Aliens (a 1986 James Cameron sequel to the seminal 1979 Alien from Scott Ridley, has asked me to identify the large computer props that were used in the original set. She identified an Alto cabinet: that's how she originally contacted me, to get the exact dimensions. But for the rest shown here we came up empty. The only thing I could see is an upside down industrial CRT terminal and a keyboard that appears fake. The only clue I have is that this was filmed in the UK in 1985 and Melissa believes part of the equipment came from British Airways "Boadicea" ticket reservation system. You can browse all the pictures at once here on Goolge Photos: https://goo.gl/photos/dZHzWM5ArvHjV9AN7 Or view the original full res pictures individually from my DropBox: https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… https://dl.dropboxusercontent.com/u/32371244/Aliens%20Set%20Equipment%20ID/… Here are Melissa's original comments on the screen shots: "- Hypersleep-Ops Unkown Unit: I am unsure what exactly this is. It appears to be similar in size to the Alto cabinet. - Unknown Ops Console keyboards: I had talked to Richard Thomson who I found through a Google search and he suggested maybe this isn't really a keyboard, but blank keys stuck on a sheet of metal, as it doesn't look to him like there's travel distance for the keys. - Unknown Ops PC Terminal: Richard also suggested that to him, it looks like a monitor placed upside down. He thinks the grid and circle pattern on the "top" is where rubber feet would have been. Also paired with this monitor appears to be a flat keypanel about the size of a standard keyboard. The surface is shiny. If I can find some better images I will include them in a reply. You may be able to make it out in a couple of these clippings Pictured in these photos are large units. I've brightened them up and removed the colour from some because they had a harsh red lighting that was hard on the eyes and washed out any colour anyway. The actress running alongside the units is Sigourney Weaver who stands about 5'11 tall. That should give an approximate size. It's been stated that somewhere in this scene, the setbuilders had used British Airways' old ticketing computer system as set dressing when they upgraded and were discarding the old units. They were called "Boadicea" but when I google search that, All I get for results is one black and white photo from the 1960s and nothing in that image is recognizable. So I have no idea which units these "Boadicea" units are. In the last image attached (Ops Standing units 9) I have boxed in the best shot of the opposite sides of the units that I have. Note the other units on the right side of that image. If you can help with these as well that would be so cool. It's possible these could be part of the Boadicea units too. I have NO idea what any of these are, so anything you can tell me is appreciated!" Marc

7 years, 11 months

Unknown 8085 opcodes

by bygg＠cafax.se

> I built a disassembler years ago to pick apart captured malware. By > now it handles about a dozen ISAs. While 8080 and 8085 are not on the > list, Z-80 is; adding 8080 would be a relatively simple thing. I've > added that to my to-do list; if someone can point me to 8080/8085 > machine language documentation that would save me some searching (which > is something I'm not much good at in these days when frickin' > *everything* is shoehorned into a Web page). You mean something like this, from another disassembler project: /* ---- Intel opcode table ---- */ static dispblock inteldisp[256] = { { 0x00, 1, inst, 0, "nop" }, { 0x01, 3, inst, 0, "lxi b,%2" }, { 0x02, 1, inst, 0, "stax b" }, { 0x03, 1, inst, 0, "inx b" }, { 0x04, 1, inst, 0, "inr b" }, { 0x05, 1, inst, 0, "dcr b" }, { 0x06, 2, inst, 0, "mvi b,%1" }, { 0x07, 1, inst, 0, "rlc" }, { 0x08, 1, unused, 0, 0 }, { 0x09, 1, inst, 0, "dad b" }, { 0x0A, 1, inst, 0, "ldax b" }, { 0x0B, 1, inst, 0, "dcx b" }, { 0x0C, 1, inst, 0, "inr c" }, { 0x0D, 1, inst, 0, "dcr c" }, { 0x0E, 2, inst, 0, "mvi c,%1" }, { 0x0F, 1, inst, 0, "rrc" }, { 0x10, 2, unused, 0, 0 }, { 0x11, 3, inst, 0, "lxi d,%2" }, { 0x12, 1, inst, 0, "stax d" }, { 0x13, 1, inst, 0, "inx d" }, { 0x14, 1, inst, 0, "inr d" }, { 0x15, 1, inst, 0, "dcr d" }, { 0x16, 2, inst, 0, "mvi d,%1" }, { 0x17, 1, inst, 0, "ral" }, { 0x18, 2, unused, 0, 0 }, { 0x19, 1, inst, 0, "dad d" }, { 0x1A, 1, inst, 0, "ldax d" }, { 0x1B, 1, inst, 0, "dcx d" }, { 0x1C, 1, inst, 0, "inr e" }, { 0x1D, 1, inst, 0, "dcr e" }, { 0x1E, 2, inst, 0, "mvi e,%1" }, { 0x1F, 1, inst, 0, "rar" }, { 0x20, 1, inst, I85, "rim" }, { 0x21, 3, inst, 0, "lxi h,%2" }, { 0x22, 3, instw, 0, "shld %a" }, { 0x23, 1, inst, 0, "inx h" }, { 0x24, 1, inst, 0, "inr h" }, { 0x25, 1, inst, 0, "dcr h" }, { 0x26, 2, inst, 0, "mvi h,%1" }, { 0x27, 1, inst, 0, "daa" }, { 0x28, 2, unused, 0, 0 }, { 0x29, 1, inst, 0, "dad h" }, { 0x2A, 3, instw, 0, "lhld %a" }, { 0x2B, 1, inst, 0, "dcx h" }, { 0x2C, 1, inst, 0, "inr l" }, { 0x2D, 1, inst, 0, "dcr l" }, { 0x2E, 2, inst, 0, "mvi l,%1" }, { 0x2F, 1, inst, 0, "cma" }, { 0x30, 1, inst, I85, "sim" }, { 0x31, 3, inst, 0, "lxi sp,%2" }, { 0x32, 3, instb, 0, "sta %a" }, { 0x33, 1, inst, 0, "inx sp" }, { 0x34, 1, inst, 0, "inr m" }, { 0x35, 1, inst, 0, "dcr m" }, { 0x36, 2, inst, 0, "mvi m,%1" }, { 0x37, 1, inst, 0, "stc" }, { 0x38, 2, unused, 0, 0 }, { 0x39, 1, inst, 0, "dad sp" }, { 0x3A, 3, instb, 0, "lda %a" }, { 0x3B, 1, inst, 0, "dcr sp" }, { 0x3C, 1, inst, 0, "inr a" }, { 0x3D, 1, inst, 0, "dcr a" }, { 0x3E, 2, inst, 0, "mvi a,%1" }, { 0x3F, 1, inst, 0, "cmc" }, { 0x40, 1, inst, 0, "mov b,b" }, { 0x41, 1, inst, 0, "mov b,c" }, { 0x42, 1, inst, 0, "mov b,d" }, { 0x43, 1, inst, 0, "mov b,e" }, { 0x44, 1, inst, 0, "mov b,h" }, { 0x45, 1, inst, 0, "mov b,l" }, { 0x46, 1, inst, 0, "mov b,m" }, { 0x47, 1, inst, 0, "mov b,a" }, { 0x48, 1, inst, 0, "mov c,b" }, { 0x49, 1, inst, 0, "mov c,c" }, { 0x4A, 1, inst, 0, "mov c,d" }, { 0x4B, 1, inst, 0, "mov c,e" }, { 0x4C, 1, inst, 0, "mov c,h" }, { 0x4D, 1, inst, 0, "mov c,l" }, { 0x4E, 1, inst, 0, "mov c,m" }, { 0x4F, 1, inst, 0, "mov c,a" }, { 0x50, 1, inst, 0, "mov d,b" }, { 0x51, 1, inst, 0, "mov d,c" }, { 0x52, 1, inst, 0, "mov d,d" }, { 0x53, 1, inst, 0, "mov d,e" }, { 0x54, 1, inst, 0, "mov d,h" }, { 0x55, 1, inst, 0, "mov d,l" }, { 0x56, 1, inst, 0, "mov d,m" }, { 0x57, 1, inst, 0, "mov d,a" }, { 0x58, 1, inst, 0, "mov e,b" }, { 0x59, 1, inst, 0, "mov e,c" }, { 0x5A, 1, inst, 0, "mov e,d" }, { 0x5B, 1, inst, 0, "mov e,e" }, { 0x5C, 1, inst, 0, "mov e,h" }, { 0x5D, 1, inst, 0, "mov e,l" }, { 0x5E, 1, inst, 0, "mov e,m" }, { 0x5F, 1, inst, 0, "mov e,a" }, { 0x60, 1, inst, 0, "mov h,b" }, { 0x61, 1, inst, 0, "mov h,c" }, { 0x62, 1, inst, 0, "mov h,d" }, { 0x63, 1, inst, 0, "mov h,e" }, { 0x64, 1, inst, 0, "mov h,h" }, { 0x65, 1, inst, 0, "mov h,l" }, { 0x66, 1, inst, 0, "mov h,m" }, { 0x67, 1, inst, 0, "mov h,a" }, { 0x68, 1, inst, 0, "mov l,b" }, { 0x69, 1, inst, 0, "mov l,c" }, { 0x6A, 1, inst, 0, "mov l,d" }, { 0x6B, 1, inst, 0, "mov l,e" }, { 0x6C, 1, inst, 0, "mov l,h" }, { 0x6D, 1, inst, 0, "mov l,l" }, { 0x6E, 1, inst, 0, "mov l,m" }, { 0x6F, 1, inst, 0, "mov l,a" }, { 0x70, 1, inst, 0, "mov m,b" }, { 0x71, 1, inst, 0, "mov m,c" }, { 0x72, 1, inst, 0, "mov m,d" }, { 0x73, 1, inst, 0, "mov m,e" }, { 0x74, 1, inst, 0, "mov m,h" }, { 0x75, 1, inst, 0, "mov m,l" }, { 0x76, 1, inst, 0, "halt" }, { 0x77, 1, inst, 0, "mov m,a" }, { 0x78, 1, inst, 0, "mov a,b" }, { 0x79, 1, inst, 0, "mov a,c" }, { 0x7A, 1, inst, 0, "mov a,d" }, { 0x7B, 1, inst, 0, "mov a,e" }, { 0x7C, 1, inst, 0, "mov a,h" }, { 0x7D, 1, inst, 0, "mov a,l" }, { 0x7E, 1, inst, 0, "mov a,m" }, { 0x7F, 1, inst, 0, "mov a,a" }, { 0x80, 1, inst, 0, "add b" }, { 0x81, 1, inst, 0, "add c" }, { 0x82, 1, inst, 0, "add d" }, { 0x83, 1, inst, 0, "add e" }, { 0x84, 1, inst, 0, "add h" }, { 0x85, 1, inst, 0, "add l" }, { 0x86, 1, inst, 0, "add m" }, { 0x87, 1, inst, 0, "add a" }, { 0x88, 1, inst, 0, "adc b" }, { 0x89, 1, inst, 0, "adc c" }, { 0x8A, 1, inst, 0, "adc d" }, { 0x8B, 1, inst, 0, "adc e" }, { 0x8C, 1, inst, 0, "adc h" }, { 0x8D, 1, inst, 0, "adc l" }, { 0x8E, 1, inst, 0, "adc m" }, { 0x8F, 1, inst, 0, "adc a" }, { 0x90, 1, inst, 0, "sub b" }, { 0x91, 1, inst, 0, "sub c" }, { 0x92, 1, inst, 0, "sub d" }, { 0x93, 1, inst, 0, "sub e" }, { 0x94, 1, inst, 0, "sub h" }, { 0x95, 1, inst, 0, "sub l" }, { 0x96, 1, inst, 0, "sub m" }, { 0x97, 1, inst, 0, "sub a" }, { 0x98, 1, inst, 0, "sbb b" }, { 0x99, 1, inst, 0, "sbb c" }, { 0x9A, 1, inst, 0, "sbb d" }, { 0x9B, 1, inst, 0, "sbb e" }, { 0x9C, 1, inst, 0, "sbb h" }, { 0x9D, 1, inst, 0, "sbb l" }, { 0x9E, 1, inst, 0, "sbb m" }, { 0x9F, 1, inst, 0, "sbb a" }, { 0xA0, 1, inst, 0, "ana b" }, { 0xA1, 1, inst, 0, "ana c" }, { 0xA2, 1, inst, 0, "ana d" }, { 0xA3, 1, inst, 0, "ana e" }, { 0xA4, 1, inst, 0, "ana h" }, { 0xA5, 1, inst, 0, "ana l" }, { 0xA6, 1, inst, 0, "ana m" }, { 0xA7, 1, inst, 0, "ana a" }, { 0xA8, 1, inst, 0, "xra b" }, { 0xA9, 1, inst, 0, "xra c" }, { 0xAA, 1, inst, 0, "xra d" }, { 0xAB, 1, inst, 0, "xra e" }, { 0xAC, 1, inst, 0, "xra h" }, { 0xAD, 1, inst, 0, "xra l" }, { 0xAE, 1, inst, 0, "xra m" }, { 0xAF, 1, inst, 0, "xra a" }, { 0xB0, 1, inst, 0, "ora b" }, { 0xB1, 1, inst, 0, "ora c" }, { 0xB2, 1, inst, 0, "ora d" }, { 0xB3, 1, inst, 0, "ora e" }, { 0xB4, 1, inst, 0, "ora h" }, { 0xB5, 1, inst, 0, "ora l" }, { 0xB6, 1, inst, 0, "ora m" }, { 0xB7, 1, inst, 0, "ora a" }, { 0xB8, 1, inst, 0, "cmp b" }, { 0xB9, 1, inst, 0, "cmp c" }, { 0xBA, 1, inst, 0, "cmp d" }, { 0xBB, 1, inst, 0, "cmp e" }, { 0xBC, 1, inst, 0, "cmp h" }, { 0xBD, 1, inst, 0, "cmp l" }, { 0xBE, 1, inst, 0, "cmp m" }, { 0xBF, 1, inst, 0, "cmp a" }, { 0xC0, 1, inst, 0, "rnz" }, { 0xC1, 1, inst, 0, "pop b" }, { 0xC2, 3, pushj, 0, "jnz %a" }, { 0xC3, 3, jrst, 0, "jmp %a" }, { 0xC4, 3, pushj, 0, "cnz %a" }, { 0xC5, 1, inst, 0, "push b" }, { 0xC6, 2, inst, 0, "adi %1" }, { 0xC7, 1, trap, 0, "rst 0" }, { 0xC8, 1, inst, 0, "rz" }, { 0xC9, 1, popj, 0, "ret" }, { 0xCA, 3, pushj, 0, "jz %a" }, { 0xCB, 0, unused, 0, 0 }, { 0xCC, 3, pushj, 0, "cz %a" }, { 0xCD, 3, pushj, 0, "call %a" }, { 0xCE, 2, inst, 0, "aci %1" }, { 0xCF, 1, trap, 0, "rst 1" }, { 0xD0, 1, inst, 0, "rnc" }, { 0xD1, 1, inst, 0, "pop d" }, { 0xD2, 3, pushj, 0, "jnc %a" }, { 0xD3, 2, inst, 0, "out %1" }, { 0xD4, 3, pushj, 0, "cnc %a" }, { 0xD5, 1, inst, 0, "push d" }, { 0xD6, 2, inst, 0, "sui %1" }, { 0xD7, 1, trap, 0, "rst 2" }, { 0xD8, 1, inst, 0, "rc" }, { 0xD9, 1, unused, 0, 0 }, { 0xDA, 3, pushj, 0, "jc %a" }, { 0xDB, 2, inst, 0, "in %1" }, { 0xDC, 3, pushj, 0, "cc %a" }, { 0xDD, 0, unused, 0, 0 }, { 0xDE, 2, inst, 0, "sbi %1" }, { 0xDF, 1, trap, 0, "rst 3" }, { 0xE0, 1, inst, 0, "rpo" }, { 0xE1, 1, inst, 0, "pop h" }, { 0xE2, 3, pushj, 0, "jpo %a" }, { 0xE3, 1, inst, 0, "xthl" }, { 0xE4, 3, pushj, 0, "cpo %a" }, { 0xE5, 1, inst, 0, "push h" }, { 0xE6, 2, inst, 0, "ani %1" }, { 0xE7, 1, trap, 0, "rst 4" }, { 0xE8, 1, inst, 0, "rpe" }, { 0xE9, 1, popj, 0, "pchl" }, { 0xEA, 3, pushj, 0, "jpe %a" }, { 0xEB, 1, inst, 0, "xchg" }, { 0xEC, 3, pushj, 0, "cpe %a" }, { 0xED, 0, unused, 0, 0 }, { 0xEE, 2, inst, 0, "xri %1" }, { 0xEF, 1, trap, 0, "rst 5" }, { 0xF0, 1, inst, 0, "rp" }, { 0xF1, 1, inst, 0, "pop psw" }, { 0xF2, 3, pushj, 0, "jp %a" }, { 0xF3, 1, inst, 0, "di" }, { 0xF4, 3, pushj, 0, "cp %a" }, { 0xF5, 1, inst, 0, "push psw" }, { 0xF6, 2, inst, 0, "ori %1" }, { 0xF7, 1, trap, 0, "rst 6" }, { 0xF8, 1, inst, 0, "rm" }, { 0xF9, 1, inst, 0, "sphl" }, { 0xFA, 3, pushj, 0, "jm %a" }, { 0xFB, 1, inst, 0, "ei" }, { 0xFC, 3, pushj, 0, "cm %a" }, { 0xFD, 0, unused, 0, 0 }, { 0xFE, 2, inst, 0, "cpi %1" }, { 0xFF, 1, trap, 0, "rst 7" }, }; --Johnny

7 years, 11 months

Unknown 8085 opcodes

by binarydinosaurs＠gmail.com

Hi folks, Any 8085 assembler geeks in the house? Official Intel docs don't seem to be helping with this one, I have 8085 and D8741A peripheral controller dumps both containing several opcodes that two disassemblers aren't recognising and any docs I've been looking through for either 8085 instructions or the UPI instruction set don't seem to feature them either. The codes are 0x08, 0x10, 0x18, 0x28, 0x38,0xD9, 0xDD and 0xED. 0x08 nearly always follows a 0x01 LXI B instruction, the others don't seem to have an obvious pattern. I've pondered if 0x10 is INC @R0 because the binary for that is 0001 000x where x is either 0 or 1. By the same reasoning 0xD9 could be XRL A,R1 (opcode 11011xxx) and 0xDD could be XRL A,R5 but can't match the others. Also the surrounding code doesn't mention those registers. Example 8085 code fragment: 3440 1792 09 DAD B 3441 1793 01 01 08 LXI B,0801H 3442 1796 08 UNRECOGNIZED 3443 1797 12 STAX D 3444 1798 0D DCR C 3445 1799 54 MOV D,H 3446 179A 65 MOV H,L 3447 179B 6C MOV L,H 3448 179C 65 MOV H,L 3449 179D 70 MOV M,B 3450 179E 68 MOV L,B 3451 179F 6F MOV L,A 3452 17A0 6E MOV L,M 3453 17A1 65 MOV H,L 3454 17A2 20 RIM 3455 17A3 44 MOV B,H 3456 17A4 65 MOV H,L 3457 17A5 74 MOV M,H 3458 17A6 61 MOV H,C 3459 17A7 69 MOV L,C 3460 17A8 6C MOV L,H 3461 17A9 73 MOV M,E 3462 17AA 01 04 05 LXI B,0504H 3463 17AD 08 UNRECOGNIZED 3464 17AE 17 RAL 3465 17AF 53 MOV D,E 3466 17B0 65 MOV H,L 3467 17B1 6C MOV L,H 3468 17B2 65 MOV H,L 3469 17B3 63 MOV H,E 3470 17B4 74 MOV M,H 3471 17B5 20 RIM Cheers! -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

7 years, 11 months

Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

by jnc＠mercury.lcs.mit.edu

> From: Brad H > 4) Videobrain Family Computer So this tickled a question I'd been meaning to ask. Circa 1975, there was an MIT spinoff which designed and built a 'personal computer' (that's effectively what it was, although it wasn't called that). The company had gotten their start building digital (IIRC) capacitance meters (back when capacitance meters were not common). So they then decided that their next product would be a small computer. I don't recall the exact name, but it was something like 'Micro-Brain' (something with 'Brain' in it, IIRC). The computer was not a success (technically), and IIRC, it sank the company. Does this ring any bells for anyone? Noel

7 years, 11 months

Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

by jnc＠mercury.lcs.mit.edu

> From: William Maddox > ECD Micromind That would be the one. Thanks! (A friend of mine worked there, as a tech, but it was aeons ago, and I just could not remember the name!) According to this blog: http://ecdmicromind.blogspot.com/2006_09_01_archive.html there is actually one still in existence, and it (sorta) works! Noel

7 years, 11 months

What's the rarest or most unusual computer-related item do you own?

by COURYHOUSE＠aol.com

In a message dated 1/11/2017 2:01:05 P.M. US Mountain Standard Time, RichA at livingcomputers.org writes: From: Noel Chiappa Sent: Wednesday, January 11, 2017 5:40 AM >> From: Eric Smith >> I have a computer of the type that Gates and Allen used for that early >> development. :-) >> I don't have it running, though. > Really? Which model processor; KA, KI, KL? Eric's got a KL. If he had a KA, I would have tracked him down and beaten him to a pulp to lay hands on it--and we're friends. > PS: Apparently Gates and Allen at one point rented time on a commercial > service in Boston to do development; anyone know who that was, and what > machine/OS is was? Nope. They moved to Albuquerque as soon as the deal with MITS was done. (Ed Roberts hired Paul as his VP of software development on the spot.) They rented time from the Albuquerque school district, whose -10 had unused capacity. (Development of the BASIC interpreter was famously done using the Harvard KA-10.) They went from renting time on others' systems to owning their own when they moved from Albuquerque back to Seattle. Their first was a KS under TOPS-20. I have all this not merely from Paul's book, but from another friend who was Microsoft employee #11 (who appears in the famous picture) and others like David Bunnell at our grand opening. Rich Rich Alderson Vintage Computing Sr. Systems Engineer Living Computers: Museum + Labs 2245 1st Avenue S Seattle, WA 98134 mailto:RichA at LivingComputers.org http://www.LivingComputers.org/ I had heard Altair code for the roms and stuff was developed on an Intel Intellect 8 system? Is this fact , Fiction or?? Ed# _www.smecc.org_ (http://www.smecc.org)

7 years, 11 months

Boot Loader for 3P+S on IMSAI

by wheagy＠gmail.com

Yes, I was able to run the echo characters test from the solivant site as well as a couple other small upload tests, so I'm thinking it's a delay issue or a configuration problem with the 3P+S and MITS BASIC. Digging back into this on my IMSAI, I'm now remembering the peculiarities of loading MITS BASIC when I was doing it on the Altair. That picture will help. I think I've already spotted something without even having my actual card in front of me. Thanks...Win >Did you verify "echo characters" works? There is a test program in the >solivant site that explains this. If so, then you very well may need to >experiment with character delays when you download BASIC. You can watch >the lights and see when the various loaders load, that might help give you >a clue where the failure point is. >The extra pointers I added were things I found useful, but I was using the >2SIO card. >b

7 years, 11 months

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test-drb January 2017