Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Showing posts with label
reverse-engineering
.
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Showing posts with label
reverse-engineering
.
Show all posts
Inside the vintage 74181 ALU chip: how it works and why it's so strange
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The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic funct...
10 comments:
Analyzing the vintage 8008 processor from die photos: its unusual counters
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The revolutionary Intel 8008 microprocessor is 45 years old today (March 13, 2017), so I figured it's time for a blog post on reverse-en...
6 comments:
Reverse-engineering the surprisingly advanced ALU of the 8008 microprocessor
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A computer's arithmetic-logic unit (ALU) is the heart of the processor, performing arithmetic and logic operations on data. If you'v...
6 comments:
Inside the 74181 ALU chip: die photos and reverse engineering
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What's inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip. 1...
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