Comment by vaughnegut
7 hours ago
Favourite article I've read in a while, what a delight. I wonder what kind of performance you could get if someone hand wrote a dedicated, modern C compiler for it.
7 hours ago
Favourite article I've read in a while, what a delight. I wonder what kind of performance you could get if someone hand wrote a dedicated, modern C compiler for it.
According to the article, it takes 40 univac instructions to run a single risc-v instruction, so potentially up to 40x the current performance. Though you'd probably need more instructions to do things than a single one, so probably less than that, say 10-20x? Especially if you made a custom compiler that made the best use of the hardware you could, since it's weird
> it takes 40 univac instructions to run a single risc-v instruction
Which is wild, given:
> The computer’s original purpose was to be used by the Navy to read in radar signals and direct artillery
I'd really be fascinated to see how that was done on such a primitive machine, shame that's probably been lost.
The radar "reading" was done by first plotting analog radar signals to the antique rotary radar displays. Then there would be human operators with a light pen, marking each radar signature on each radar turn.
So the Univac would receive input coordinates for each target and track those in memory each turn.