Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Inside the 76477 Space Invaders sound effect chip: digital logic implemented with I2L
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The 76477 Complex Sound Generation chip (1978) provided sound effects for Space Invaders 1 and many other video games . It was also a pop...
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Using an FPGA to generate raw VGA video:FizzBuzz with animation
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This blog post shows how you can generate a video signal with an FPGA, using the FizzBuzz problem as an example. Creating video with an FP...
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A 1970s disk drive that wouldn't seek: getting our Xerox Alto running again
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Our vintage Xerox Alto has been running reliably for months, but a couple weeks ago the disk drive malfunctioned and the heads stopped movin...
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