#cosmac — Public Fediverse posts on home.social

My CDP1802-equivalent RTL core can run at 166 Mhz in an XCKU5P Kintex Ultrascale+ FPGA (-1 speed grade). Given that my core takes exactly 1/8 as many clocks per instruction as a real CDP1802, this means that it will run at the equivalent speed of a 1.33 GHz CDP1802.
The real CDP1802 typically ran at 2.0 to 3.2 MHz.
#fpga #cdp1802 #cosmac

#fpga #cdp1802 #cosmac

clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛 @[email protected] · 2024-06-16 · 03:44 UTC

"The COSMAC (Complementary Symmetry Monolithic Array Computer) is an 8-bit microprocessor family introduced by RCA. It is historically notable as the first CMOS microprocessor."

"Successors to the 1802 [ . . . ] have [ . . . ] enhanced features [ . . . ] There are also some minor pin function changes, but the line continues to be produced in its original 40-pin dual in-line package (DIP) format."

en.wikipedia.org/wiki/RCA_1802

That's pretty cool! Just learned about the #COSMAC from @requiem 's comment hackers.town/@requiem/11209580… .
8-bit CMOS microprocessor

#cosmac

Matthew Sparby @[email protected] · 2023-12-16 · 01:35 UTC

I have other projects that should take precedence but I couldn't help myself. I put one of the #COSMAC #ELF boards on the workbench and entered the traditional test program which simply flashes the Q LED. Absolutely chuffed to see it working first try!

#VintageComputing / #RetroComputing

#cosmac #elf #vintagecomputing #retrocomputing

Matthew Sparby @[email protected] · 2023-12-14 · 23:35 UTC

@trithorn I'd argue that there are people better positioned to make good use of this. I didn't know anything about the #COSMAC 1802 stuff until today. I'm excited to learn more about it. I've been reading a lot already and what I HAVE learned is that the 1861 Pixie graphics chip is really hard to find right now so I'm glad that at least one of the two systems in the box has the chip present.

#cosmac

Christopher McNabb N2UX @[email protected] · 2023-04-24 · 14:56 UTC

A new (non-radio) project: a #COSMAC-ELF RCA 1802 based microcomputer that fits in an Altoids tin. 1970’s computing in the palm of your hand complete with flippy switches and blinky lights. http://www.sunrise-ev.com/1802.htm

#cosmac

IT News @[email protected] · 2021-04-12 · 20:25 UTC

Queen Victoria’s Secret (Teletype and COSMAC Elf) - We don’t really think anyone in the Victorian era had a COSMAC Elf — the homebrew ... - https://hackaday.com/2021/04/12/queen-victorias-secret-teletype-and-cosmac-elf/ #vintagecomputer #retrocomputing #cosmacelf #steampunk #cosmac

#cosmac #steampunk #cosmacelf #retrocomputing #vintagecomputer

Ed S @[email protected] · 2018-11-02 · 11:15 UTC

Multithreading? Virtual memory? Supervisor mode? Floating point? Multiply and divide? All unnecessary! The 1802 doesn't even have a subroutine call. Or a dedicated PC register.

https://en.wikipedia.org/wiki/RCA_1802

As for computers, well, they certainly don't need sound. Or video. Or keyboards. See Lee Hart's membership card:
http://www.cosmacelf.com/gallery/membership-cards/

You *do* need blinking lights though.

#cosmac #retrocomputing #frontpanel #blinkenlights

@vidak @bhtooefr

#blinkenlights #frontpanel #retrocomputing #cosmac

Retrópolis @[email protected] · 2023-03-29 · 23:29 UTC

Repórter Retro 090

https://retropolis.com.br/2023/03/29/reporter-retro-090/

#RepórterRetro #6502 #8-BitResurgence #ActionRetro #adrianblack #anime #Arcade #Assembler #Assembly #Austrália #bug #Commodore128 #Commodore64 #Commodore900 #consoles #COSMAC #Cromemco #DennisRitchie #fliperama #fusion-C #GEOS #HTML #IBM #internet #Japão #Kokusai #LinguagemC #mostechnology #MrLurch #MS-DOS #MSX #MSXSJC #MSXVDP #NECPC-9801 #Obituário #PCXT #PlayChoice-10 #PowerPC #programação #Protótipo #RCACDP1802

#rcacdp1802 #prototipo #programacao #powerpc #playchoice #pcxt

Retrópolis @[email protected] · 2023-03-29 · 23:29 UTC

Repórter Retro 090

https://retropolis.com.br/2023/03/29/reporter-retro-090/

#RepórterRetro #6502 #8-BitResurgence #ActionRetro #adrianblack #anime #Arcade #Assembler #Assembly #Austrália #bug #Commodore128 #Commodore64 #Commodore900 #consoles #COSMAC #Cromemco #DennisRitchie #fliperama #fusion-C #GEOS #HTML #IBM #internet #Japão #Kokusai #LinguagemC #mostechnology #MrLurch #MS-DOS #MSX #MSXSJC #MSXVDP #NECPC-9801 #Obituário #PCXT #PlayChoice-10 #PowerPC #programação #Protótipo #RCACDP1802

#rcacdp1802 #prototipo #programacao #powerpc #playchoice #pcxt

Retrópolis @[email protected] · 2023-03-29 · 23:29 UTC

Repórter Retro 090

https://retropolis.com.br/2023/03/29/reporter-retro-090/

#RepórterRetro #6502 #8-BitResurgence #ActionRetro #adrianblack #anime #Arcade #Assembler #Assembly #Austrália #bug #Commodore128 #Commodore64 #Commodore900 #consoles #COSMAC #Cromemco #DennisRitchie #fliperama #fusion-C #GEOS #HTML #IBM #internet #Japão #Kokusai #LinguagemC #mostechnology #MrLurch #MS-DOS #MSX #MSXSJC #MSXVDP #NECPC-9801 #Obituário #PCXT #PlayChoice-10 #PowerPC #programação #Protótipo #RCACDP1802

#reporterretro #actionretro #adrianblack #anime #arcade #assembler

Retrópolis @[email protected] · 2023-03-29 · 23:29 UTC

Repórter Retro 090

https://retropolis.com.br/2023/03/29/reporter-retro-090/

#RepórterRetro #6502 #8-BitResurgence #ActionRetro #adrianblack #anime #Arcade #Assembler #Assembly #Austrália #bug #Commodore128 #Commodore64 #Commodore900 #consoles #COSMAC #Cromemco #DennisRitchie #fliperama #fusion-C #GEOS #HTML #IBM #internet #Japão #Kokusai #LinguagemC #mostechnology #MrLurch #MS-DOS #MSX #MSXSJC #MSXVDP #NECPC-9801 #Obituário #PCXT #PlayChoice-10 #PowerPC #programação #Protótipo #RCACDP1802

#rcacdp1802 #prototipo #programacao #powerpc #playchoice #pcxt

Retrópolis @[email protected] · 2023-06-28 · 23:30 UTC

Repórter Retro 093

https://retropolis.com.br/2023/06/28/reporter-retro-093/

#ReprterRetro #6800 #68000 #AdrianBlack #Aesthedes #AlsGeekLab #AnotherBoringTopic #AtariSt #AugustoBaffa #BBS #BenZotto #BITNET #Commodore64 #ComputaoGrfica #COSMAC #Doom #ethernet #FitaCassete #Hackaday #Holanda #HUG1802 #Intel #Jogos #LinguagemC #MicroCoreLabs #microsoft #ModernVintageGamer #Mouse #MSX #Multibus #NostalgiaNerd #NovaZelndia #os2 #PCXT #RCACDP1802 #recap #RetroRio #RNP #SID #SnteseDeVoz #Sphere #T

#t #sphere #sntesedevoz #sid #rnp #retrorio

Retrópolis @[email protected] · 2023-06-28 · 23:30 UTC

Repórter Retro 093

https://retropolis.com.br/2023/06/28/reporter-retro-093/

#ReprterRetro #6800 #68000 #AdrianBlack #Aesthedes #AlsGeekLab #AnotherBoringTopic #AtariSt #AugustoBaffa #BBS #BenZotto #BITNET #Commodore64 #ComputaoGrfica #COSMAC #Doom #ethernet #FitaCassete #Hackaday #Holanda #HUG1802 #Intel #Jogos #LinguagemC #MicroCoreLabs #microsoft #ModernVintageGamer #Mouse #MSX #Multibus #NostalgiaNerd #NovaZelndia #os2 #PCXT #RCACDP1802 #recap #RetroRio #RNP #SID #SnteseDeVoz #Sphere #T

#t #sphere #sntesedevoz #sid #rnp #retrorio

Retrópolis @[email protected] · 2023-06-28 · 23:30 UTC

Repórter Retro 093

https://retropolis.com.br/2023/06/28/reporter-retro-093/

#ReprterRetro #6800 #68000 #AdrianBlack #Aesthedes #AlsGeekLab #AnotherBoringTopic #AtariSt #AugustoBaffa #BBS #BenZotto #BITNET #Commodore64 #ComputaoGrfica #COSMAC #Doom #ethernet #FitaCassete #Hackaday #Holanda #HUG1802 #Intel #Jogos #LinguagemC #MicroCoreLabs #microsoft #ModernVintageGamer #Mouse #MSX #Multibus #NostalgiaNerd #NovaZelndia #os2 #PCXT #RCACDP1802 #recap #RetroRio #RNP #SID #SnteseDeVoz #Sphere #T

#reprterretro #adrianblack #aesthedes #alsgeeklab #anotherboringtopic #atarist

Retrópolis @[email protected] · 2023-06-28 · 23:30 UTC

Repórter Retro 093

https://retropolis.com.br/2023/06/28/reporter-retro-093/

#ReprterRetro #6800 #68000 #AdrianBlack #Aesthedes #AlsGeekLab #AnotherBoringTopic #AtariSt #AugustoBaffa #BBS #BenZotto #BITNET #Commodore64 #ComputaoGrfica #COSMAC #Doom #ethernet #FitaCassete #Hackaday #Holanda #HUG1802 #Intel #Jogos #LinguagemC #MicroCoreLabs #microsoft #ModernVintageGamer #Mouse #MSX #Multibus #NostalgiaNerd #NovaZelndia #os2 #PCXT #RCACDP1802 #recap #RetroRio #RNP #SID #SnteseDeVoz #Sphere #T

#rcacdp1802 #pcxt #os2 #novazelndia #nostalgianerd #multibus

Stewart Russell @[email protected] · 2025-10-18 · 16:37 UTC

Tom Pittman's “A Short Course in Programming” for the RCA 1802 as PDF and EPUB

#RetroComputing #CDP1802 #Cosmac #RCA #1802

https://scruss.com/blog/2025/10/18/tom-pittmans-a-short-course-in-programming-for-the-rca-1802/

#retrocomputing #cdp1802 #cosmac #rca

Stewart Russell @[email protected] · 2025-10-18 · 16:37 UTC

Tom Pittman's “A Short Course in Programming” for the RCA 1802 as PDF and EPUB

#RetroComputing #CDP1802 #Cosmac #RCA #1802

https://scruss.com/blog/2025/10/18/tom-pittmans-a-short-course-in-programming-for-the-rca-1802/

#retrocomputing #cdp1802 #cosmac #rca

Stewart Russell @[email protected] · 2025-10-18 · 16:37 UTC

Tom Pittman's “A Short Course in Programming” for the RCA 1802 as PDF and EPUB

#RetroComputing #CDP1802 #Cosmac #RCA #1802

https://scruss.com/blog/2025/10/18/tom-pittmans-a-short-course-in-programming-for-the-rca-1802/

#rca #cosmac #cdp1802 #retrocomputing

Stewart Russell @[email protected] · 2025-10-18 · 16:37 UTC

Tom Pittman's “A Short Course in Programming” for the RCA 1802 as PDF and EPUB

#RetroComputing #CDP1802 #Cosmac #RCA #1802

https://scruss.com/blog/2025/10/18/tom-pittmans-a-short-course-in-programming-for-the-rca-1802/

#retrocomputing #cdp1802 #cosmac #rca

Paul Houle @[email protected] · 2025-02-12 · 14:38 UTC

A System For The Sixties: The RCA Studio II

https://nicole.express/2024/radio-keith-orpheum.html

#computers #retrocomputing #microprocessors #games #technology #rca #cosmac #chip8

#computers #retrocomputing #microprocessors #games #technology #rca

Paul Houle @[email protected] · 2025-02-12 · 14:38 UTC

A System For The Sixties: The RCA Studio II

https://nicole.express/2024/radio-keith-orpheum.html

#computers #retrocomputing #microprocessors #games #technology #rca #cosmac #chip8

#computers #retrocomputing #microprocessors #games #technology #rca

Paul Houle @[email protected] · 2025-02-12 · 14:38 UTC

A System For The Sixties: The RCA Studio II

https://nicole.express/2024/radio-keith-orpheum.html

#computers #retrocomputing #microprocessors #games #technology #rca #cosmac #chip8

#chip8 #cosmac #rca #technology #games #microprocessors

Paul Houle @[email protected] · 2025-02-12 · 14:38 UTC

A System For The Sixties: The RCA Studio II

https://nicole.express/2024/radio-keith-orpheum.html

#computers #retrocomputing #microprocessors #games #technology #rca #cosmac #chip8

#computers #retrocomputing #microprocessors #games #technology #rca

🇺🇦 haxadecimal 🚫👑 @[email protected] · 2025-02-05 · 00:15 UTC

My CDP1802-equivalent RTL core can run at 166 Mhz in an XCKU5P Kintex Ultrascale+ FPGA (-1 speed grade). Given that my core takes exactly 1/8 as many clocks per instruction as a real CDP1802, this means that it will run at the equivalent speed of a 1.33 GHz CDP1802.
The real CDP1802 typically ran at 2.0 to 3.2 MHz.
#fpga #cdp1802 #cosmac

#fpga #cdp1802 #cosmac

🇺🇦 haxadecimal 🚫👑 @[email protected] · 2025-02-05 · 00:15 UTC

My CDP1802-equivalent RTL core can run at 166 Mhz in an XCKU5P Kintex Ultrascale+ FPGA (-1 speed grade). Given that my core takes exactly 1/8 as many clocks per instruction as a real CDP1802, this means that it will run at the equivalent speed of a 1.33 GHz CDP1802.
The real CDP1802 typically ran at 2.0 to 3.2 MHz.
#fpga #cdp1802 #cosmac

#fpga #cdp1802 #cosmac

🇺🇦 haxadecimal 🚫👑 @[email protected] · 2025-02-05 · 00:15 UTC

My CDP1802-equivalent RTL core can run at 166 Mhz in an XCKU5P Kintex Ultrascale+ FPGA (-1 speed grade). Given that my core takes exactly 1/8 as many clocks per instruction as a real CDP1802, this means that it will run at the equivalent speed of a 1.33 GHz CDP1802.
The real CDP1802 typically ran at 2.0 to 3.2 MHz.
#fpga #cdp1802 #cosmac

#cosmac #cdp1802 #fpga

🇺🇦 haxadecimal 🚫👑 @[email protected] · 2025-02-05 · 00:15 UTC

My CDP1802-equivalent RTL core can run at 166 Mhz in an XCKU5P Kintex Ultrascale+ FPGA (-1 speed grade). Given that my core takes exactly 1/8 as many clocks per instruction as a real CDP1802, this means that it will run at the equivalent speed of a 1.33 GHz CDP1802.
The real CDP1802 typically ran at 2.0 to 3.2 MHz.
#fpga #cdp1802 #cosmac

#fpga #cdp1802 #cosmac

clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛 @[email protected] · 2024-06-16 · 03:44 UTC

"The COSMAC (Complementary Symmetry Monolithic Array Computer) is an 8-bit microprocessor family introduced by RCA. It is historically notable as the first CMOS microprocessor."

"Successors to the 1802 [ . . . ] have [ . . . ] enhanced features [ . . . ] There are also some minor pin function changes, but the line continues to be produced in its original 40-pin dual in-line package (DIP) format."

en.wikipedia.org/wiki/RCA_1802

That's pretty cool! Just learned about the #COSMAC from @requiem 's comment hackers.town/@requiem/11209580… .
8-bit CMOS microprocessor

#cosmac

clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛 @[email protected] · 2024-06-16 · 03:44 UTC

"The COSMAC (Complementary Symmetry Monolithic Array Computer) is an 8-bit microprocessor family introduced by RCA. It is historically notable as the first CMOS microprocessor."

"Successors to the 1802 [ . . . ] have [ . . . ] enhanced features [ . . . ] There are also some minor pin function changes, but the line continues to be produced in its original 40-pin dual in-line package (DIP) format."

en.wikipedia.org/wiki/RCA_1802

That's pretty cool! Just learned about the #COSMAC from @requiem 's comment hackers.town/@requiem/11209580… .
8-bit CMOS microprocessor

#cosmac

clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛 @[email protected] · 2024-06-16 · 03:44 UTC

"The COSMAC (Complementary Symmetry Monolithic Array Computer) is an 8-bit microprocessor family introduced by RCA. It is historically notable as the first CMOS microprocessor."

"Successors to the 1802 [ . . . ] have [ . . . ] enhanced features [ . . . ] There are also some minor pin function changes, but the line continues to be produced in its original 40-pin dual in-line package (DIP) format."

en.wikipedia.org/wiki/RCA_1802

That's pretty cool! Just learned about the #COSMAC from @requiem 's comment hackers.town/@requiem/11209580… .
8-bit CMOS microprocessor

#cosmac

clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛 @[email protected] · 2024-06-16 · 03:44 UTC

"The COSMAC (Complementary Symmetry Monolithic Array Computer) is an 8-bit microprocessor family introduced by RCA. It is historically notable as the first CMOS microprocessor."

"Successors to the 1802 [ . . . ] have [ . . . ] enhanced features [ . . . ] There are also some minor pin function changes, but the line continues to be produced in its original 40-pin dual in-line package (DIP) format."

en.wikipedia.org/wiki/RCA_1802

That's pretty cool! Just learned about the #COSMAC from @requiem 's comment hackers.town/@requiem/11209580… .
8-bit CMOS microprocessor

#cosmac

Matthew Sparby @[email protected] · 2023-12-16 · 01:35 UTC

I have other projects that should take precedence but I couldn't help myself. I put one of the #COSMAC #ELF boards on the workbench and entered the traditional test program which simply flashes the Q LED. Absolutely chuffed to see it working first try!

#VintageComputing / #RetroComputing

#cosmac #elf #vintagecomputing #retrocomputing

Matthew Sparby @[email protected] · 2023-12-16 · 01:35 UTC

I have other projects that should take precedence but I couldn't help myself. I put one of the #COSMAC #ELF boards on the workbench and entered the traditional test program which simply flashes the Q LED. Absolutely chuffed to see it working first try!

#VintageComputing / #RetroComputing

#cosmac #elf #vintagecomputing #retrocomputing

Matthew Sparby @[email protected] · 2023-12-16 · 01:35 UTC

I have other projects that should take precedence but I couldn't help myself. I put one of the #COSMAC #ELF boards on the workbench and entered the traditional test program which simply flashes the Q LED. Absolutely chuffed to see it working first try!

#VintageComputing / #RetroComputing

#retrocomputing #vintagecomputing #elf #cosmac

Matthew Sparby @[email protected] · 2023-12-16 · 01:35 UTC

I have other projects that should take precedence but I couldn't help myself. I put one of the #COSMAC #ELF boards on the workbench and entered the traditional test program which simply flashes the Q LED. Absolutely chuffed to see it working first try!

#VintageComputing / #RetroComputing

#cosmac #elf #vintagecomputing #retrocomputing

Matthew Sparby @[email protected] · 2023-12-14 · 23:35 UTC

@trithorn I'd argue that there are people better positioned to make good use of this. I didn't know anything about the #COSMAC 1802 stuff until today. I'm excited to learn more about it. I've been reading a lot already and what I HAVE learned is that the 1861 Pixie graphics chip is really hard to find right now so I'm glad that at least one of the two systems in the box has the chip present.

#cosmac

Matthew Sparby @[email protected] · 2023-12-14 · 23:35 UTC

@trithorn I'd argue that there are people better positioned to make good use of this. I didn't know anything about the #COSMAC 1802 stuff until today. I'm excited to learn more about it. I've been reading a lot already and what I HAVE learned is that the 1861 Pixie graphics chip is really hard to find right now so I'm glad that at least one of the two systems in the box has the chip present.

#cosmac