Taniwha

31 ms·

481.
by Taniwha 4y ago
Yup - I've just finished bringing up some FP hardware - you can't do all the 64-bit double space but you can do all the 32-bit single op instructions (converts, sqrt, etc) - but add/sub/multiple (32x32) are not doable Bu
482.
by Taniwha 4y ago
Or it could just be a press release for Canadian consumption
483.
by Taniwha 4y ago
Traditionally everyone entered "mov -(pc), -(pc)" at the top of memory at least once just because ..... (and then reloaded the bootstrap by hand)
484.
by Taniwha 4y ago
The Hall–Héroult process (electrolysis of alumina to make aluminium) uses a sacrificial carbon anode - every 2 atoms of Al you produce results in 3 CO2 molecules - so for every kg of Al you make ~2.4 kg of CO2
485.
by Taniwha 4y ago
Back in the early days of large screen CRTs (19 inch color), late 80s. I was working on bringing X up on a new display board .... suddenly the whole screen sort of twisted and shifted, and the went OK again .... outside my window a really l
486.
by Taniwha 4y ago
So then this is NOT an example of the virus becoming immune to the anti-viral (my initial assumption) right?
487.
by Taniwha 4y ago
I built a 4-bit 4004 equivalent for TT2 and then an 8-bit equivalent - sort of 8051 level sort of stuff - quite doable, the hard bit is the tiny bus interface
488.
by Taniwha 4y ago
Yeah this is a hard limit - but also in the TT2 world it multiplexes its pins between TT projects through a scan chain - this effectively means that update times on pins are in the sub MHz domain - so anything you are building will be slow.
489.
by Taniwha 4y ago
well a bit of both - if someone hasn't given you the scary meta stability lecture you haven't really done computer science :-)
490.
by Taniwha 4y ago
Oh, let me introduce you to metastability ....
491.
by Taniwha 4y ago
more like generic tweaks rather than large swathes of stuff
492.
by Taniwha 4y ago
It's essentially how any mammal cools itself - so yeah, pretty obvious
493.
by Taniwha 4y ago
When I registered my first one (1993 I think) they were free, you also had to get a (free) class C and someone to route to it
494.
by Taniwha 4y ago
Here in New Zealand this all looks very familiar - we too have NO deductions for most tax payers - I run a small company, do the payroll and tax stuff in a spreadsheet - one simple line per employee. Most people who have just one job end up
495.
by Taniwha 4y ago
Surely that would only be true if we didn't have time zones ....
496.
by Taniwha 4y ago
A lunar eclipse can happen at any time of the day, might only be visible on the other side of the planet - maybe the question he meant to ask was "can you see ...."
497.
by Taniwha 4y ago
Maybe he didn't check his email in time before his hardware was locked
498.
by Taniwha 4y ago
I still have scars .... 50 years later
499.
by Taniwha 4y ago
I'm sure you remember that at the time it was written people were still trying to figure out what a computer language should look like - also most people at the time only had upper case (card punches) The whole how do we use keywords i
500.
by Taniwha 4y ago
You have to remember that immigrants tend to be self-selected - they're the people with the get up and go to leave their lives and travel to another country and make another new life - of course there are more entrepreneurs in immigran
501.
by Taniwha 4y ago
Finally a genuine use for blockchains!
502.
by Taniwha 4y ago
Chip dies are covered by a special mask copyright law - you can actually see the M with a circle round it in this die photo (rather than the more traditional C with a circle)
503.
by Taniwha 4y ago
The Burroughs mainframes stored most of their stacks in main memory - they have a couple of deep stack addressing modes (and a proper set of display registers). Alternately 29Ks and Sparcs have register windows which are essentially top of
504.
by Taniwha 4y ago
Some context here - unix of the day was actually tiny, designed to fit in 64k and run on a pdp-11. File systems weren't that unrobust .... but fsck was new and probably not well trusted, prior to that file systems had to be fixed manua
505.
by Taniwha 4y ago
This may simply be smarts on the part of the designers of the chip on the motherboard - either a motherboard vendor can choose to use it without external silicon andoughly get 1 USB-C channel or add the external switch and get 2 channels -
506.
by Taniwha 4y ago
A useful (very rough) rule of thumb here is that every 5th instruction is a branch this limits all sorts of things - like branch cost and prediction algorithms and sizes, but also how many instructions it's worth decoding per clock whi
507.
by Taniwha 4y ago
here in NZ we use STV (Single Transferable Voting) for some local elections - it's one of the fairest systems around, especially for electing multiple representative (or at large) wards - but it is complex because it passes fractions o
508.
by Taniwha 4y ago
Yup, all true, we did Unix ports for both Sun and AT&T, at the time I think we referred to the target of that other Apple port as "the file server"
509.
by Taniwha 4y ago
There were many MMUs for 68ks at the time - 68000s and 68010s could use the '451, it was very slow and did use wait states, some people put TLB caches around them, Sun and many others built their own MMUs out of SRAM, there was guy who
510.
by Taniwha 4y ago
Charging is what happens BEFORE a court proceeding, it's done by a prosecutor, not a judge Also I'm pretty sure that when a court finds that something is libellous it's deemed to have always been libellous from the moment it

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