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cyberax
30 days ago
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Microcode inside the Intel 8087 floating-point chi...
I don't think this is correct? You can certainly fetch more than one cycle's worth of data each cycle even on modern RAM.
It's a question of throughput that can be extended cheaply enough.
gblargg
30 days ago
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I'm reading that L1 takes 4-5 cycles to read on modern CPUs, whereas it was just one cycle in the late 1980s.
userbinator
30 days ago
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I was referring to the 80s when RISCs were first invented.
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It's a question of throughput that can be extended cheaply enough.