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14:02

VIC 20 build. Sound

11:43

VIC 20 build. Colour

15:34

VIC 20 build. Monochrome video output.

17:01

VIC 20 build. Raster generator HSYNC and VSYNC

19:54

VIC-20 Build from a breadboard 6502

16:39

ZX Spectrum Turing Edition - Memory

In this series, I combine the Turing Z80 and the EPROM based ULA design to make a truly unique machine. A ZX Spectrum with no Z80 CPU and no ULA. Just EPROMs, Static RAM and 7400 series logic.
Part 1: ua-cam.com/video/LwkwSg4RVtU/v-deo.html
Turing's 1936 paper
people.cs.umass.edu/~immerman/cs601/TuringPaper1936.pdf
How big is 2^256
ua-cam.com/users/shortsX4jpqCu-wlA

Відео

14:02

ZX Spectrum - Turing Edition

Переглядів 6 тис.28 днів тому

In this series, I combine the Turing Z80 and the EPROM based ULA design to make a truly unique machine. A ZX Spectrum with no Z80 CPU and no ULA. Just EPROMs, Static RAM and 7400 series logic. It highlights the contributions of Alan Turing and Sir Clive's engineering team. Turing Z80 series: ua-cam.com/play/PLjQDRjQfW-85FoCeYqK2xcKKr5mpAbGN1.html ZX Spectrum - No ULA ua-cam.com/play/PLjQDRjQfW-...

11:43

VIC 20 build. Sound

Переглядів 3 тис.Місяць тому

I rebuild the VIC chip sound generation circuit. Part 1: CPU - ua-cam.com/video/epuP5fAuRj0/v-deo.html Part 2: Raster generator - ua-cam.com/video/Qv5tEn72Luc/v-deo.html Part 3: Monochrome display - ua-cam.com/video/giVttGIXC1E/v-deo.html Part 4: Colour - ua-cam.com/video/R-qfziBnLFY/v-deo.html The schematic for this part of the build and the code to generate the EPROMs are available on GitHub ...

15:34

VIC 20 build. Colour

Переглядів 6 тис.2 місяці тому

I combine the CPU and raster generator with a couple of extra registers, modify the clock circuit and generate a monochrome output. Part 1: CPU - ua-cam.com/video/epuP5fAuRj0/v-deo.html Part 2: Raster generator - ua-cam.com/video/Qv5tEn72Luc/v-deo.html Part 3: Monochrome display - ua-cam.com/video/giVttGIXC1E/v-deo.html The schematic for this part of the build and the code to generate the EPROM...

17:01

VIC 20 build. Monochrome video output.

Переглядів 7 тис.2 місяці тому

I combine the CPU and raster generator with a couple of extra registers, modify the clock circuit and generate a monochrome output. Part 1: CPU - ua-cam.com/video/epuP5fAuRj0/v-deo.html Part 2: Raster generator - ua-cam.com/video/Qv5tEn72Luc/v-deo.html The schematic for this part of the build and the code to generate the EPROMs are available on GitHub github.com/Turing6502/VIC20 Onto colour in ...

VIC 20 build. Raster generator HSYNC and VSYNC

19:54

VIC 20 build. Raster generator HSYNC and VSYNC

Переглядів 6 тис.2 місяці тому

We start the build of the raster generator. Part 1: CPU - ua-cam.com/video/epuP5fAuRj0/v-deo.html Part 2: Raster generator - ua-cam.com/video/Qv5tEn72Luc/v-deo.html Part 3: Monochrome output - ua-cam.com/video/giVttGIXC1E/v-deo.html The schematic for this part of the build and the code to generate the EPROMs are available on GitHub github.com/Turing6502/VIC20

16:39

VIC-20 Build from a breadboard 6502

Переглядів 31 тис.3 місяці тому

In this series, I'm taking Ben Eater's breadboard 6502 and turning it into a VIC-20, with out using the hard to get VIC chip. Instead, I'll replace it's function with simple TTL logic and EPROMs. If you've ever wanted a deeper understanding of how the VIC-20 works, then this series is for you. Part 1: CPU - ua-cam.com/video/epuP5fAuRj0/v-deo.html Part 2: Raster generator - ua-cam.com/video/Qv5t...

14:50

VGA ZX Spectrum - Schematic Part 2

Переглядів 2,5 тис.4 місяці тому

Here i go over the schematic for the video circuit and the code for the raster generator. Schematic Part1 : ua-cam.com/video/N36iWYcXBAE/v-deo.html There are a couple of minor changes to the schematic. The most up-to-date version of the schematic is available on GitHub: github.com/Turing6502/ZX-Spectrum-No-ULA

14:18

VGA ZX Spectrum - Schematic

Переглядів 7 тис.4 місяці тому

Schematic diagram for the machine. The most up-to-date version of the schematic is available on GitHub: github.com/Turing6502/ZX-Spectrum-No-ULA Part 1: ua-cam.com/video/u8TRJXLCfQo/v-deo.html Part 2: ua-cam.com/video/qO1dNRKHeb4/v-deo.html Part 3: ua-cam.com/video/If8GkpuakHM/v-deo.html Part 4: ua-cam.com/video/jdkaOuP_c5I/v-deo.html

14:09

TTL Apple 2 computer. ALU and Status

Переглядів 4,4 тис.5 місяців тому

Continuing to document the SAP6502 redesign. Schematics are available from: www.github.com/Turing6502/SAP6502 Part 1: Sequencer ua-cam.com/video/mo9VvPProoY/v-deo.html Part 2: Program Counter, Registers and Memory ua-cam.com/video/ZC3RlHvQSic/v-deo.html SAP6502: ua-cam.com/play/PLjQDRjQfW-85S5QkX8wZbkqichM6TLYYt.html Microcode: ua-cam.com/play/PLjQDRjQfW-846ceqO1tFgj6NP53JjckfB.html Introductio...

13:40

Switches to CPUs: Minutes counter

Переглядів 1,2 тис.5 місяців тому

We make the minutes counter for the clock. Part 1: Binary numbers - ua-cam.com/video/BYN8Zmk6HJY/v-deo.html Part 2: 2-input gates - ua-cam.com/video/bCuBbsakUcA/v-deo.html Part 3: Relay based logic - ua-cam.com/video/FPGLLOh_02Y/v-deo.html Part 4: Latches - ua-cam.com/video/rv0Gt7qPR0k/v-deo.html Part 5: SR Latch - ua-cam.com/video/JDJzhQL1npo/v-deo.html Part 6: Wired OR gates - ua-cam.com/vide...

8:18

VGA ZX Spectrum - Testing

Переглядів 4 тис.6 місяців тому

In this short series, I'm going to build a ZX spectrum using an EPROM instead of a ULA. In this video, i looks at getting the VGA circuit to work. Part 1: ua-cam.com/video/u8TRJXLCfQo/v-deo.html Part 2: ua-cam.com/video/qO1dNRKHeb4/v-deo.html Part 3: ua-cam.com/video/If8GkpuakHM/v-deo.html Part 4: This video Part 5: ua-cam.com/video/N36iWYcXBAE/v-deo.html

11:06

Switches to CPUs: Ripple Counter

Переглядів 1,3 тис.6 місяців тому

We make a D-type flip-flop then convert it into a ripple counter. Part 1: Binary numbers - ua-cam.com/video/BYN8Zmk6HJY/v-deo.html Part 2: 2-input gates - ua-cam.com/video/bCuBbsakUcA/v-deo.html Part 3: Relay based logic - ua-cam.com/video/FPGLLOh_02Y/v-deo.html Part 4: Latches - ua-cam.com/video/rv0Gt7qPR0k/v-deo.html Part 5: SR Latch - ua-cam.com/video/JDJzhQL1npo/v-deo.html Part 6: Wired OR ...

12:47

VGA ZX Spectrum - No ULA, No FPGAs

Переглядів 14 тис.7 місяців тому

In this short series, I'm going to build a ZX spectrum using an EPROM instead of a ULA. In this video, i looks at getting the VGA circuit to work. Part 1: ua-cam.com/video/u8TRJXLCfQo/v-deo.html Part 2: ua-cam.com/video/qO1dNRKHeb4/v-deo.html Part 3: This video Part 4: ua-cam.com/video/jdkaOuP_c5I/v-deo.html Part 5: ua-cam.com/video/N36iWYcXBAE/v-deo.html

11:41

Switches to CPUs: Flip-Flops1

Переглядів 1,1 тис.7 місяців тому

Part 1: Binary numbers - ua-cam.com/video/BYN8Zmk6HJY/v-deo.html Part 2: 2-input gates - ua-cam.com/video/bCuBbsakUcA/v-deo.html Part 3: Relay based logic - ua-cam.com/video/FPGLLOh_02Y/v-deo.html Part 4: Latches - ua-cam.com/video/rv0Gt7qPR0k/v-deo.html Part 5: SR Latch - ua-cam.com/video/JDJzhQL1npo/v-deo.html Part 6: Wired OR gates - ua-cam.com/video/WCnnezTIf1g/v-deo.html