Re: Magic smoke update
Acorns. Quite honestly I'm not very good at making things work on this platform, though - I think it needs a special kind of brain so I will have
loves telling me that whatever crazy bodge he just explained makes sense
You need to install your 6502 brain :)
Do the Acorns have "the tube" for a co-pro or alternative processor? There are some really weird things people have hitched up to it... 65C816's, Z80 although that was pretty standard, someone had a 386 hitched up I think too.
The Acorn (A3020) uses an ARM 250 - apparently the first system on a chip.
I think that's why I love it so much. Computing heritage aside, it's a 32 bit RISC running at 12 MHz so it's not bonkers level restrictive and even
I'll have to get a 6502 head on when I "properly" start work on the BBC, though. That'll require a level of coding efficiency that I can only aspire to at this point!
That was about 30 years ago... they're not very common here. I'm
unsure I've seen an actual Acorn here at all.
I used to aspire to assembly, but never really got my head around it. Just had to make do with BASIC. Just remember functionality is 95%, and the other IBM idiom... it might be slow, but it sure is hard to use :)
It turns out with BBC BASIC (and probably many others) that:
"IF a% AND 2 = 0"
"IF a% AND 2 = 0"Woah, I've never seen a statement that looks remotely like that in any version of basic. In fairness though most of what I've seen are either MS variants including Applesoft, or some early TRS80 versions.
... print("Yes")a = 1
if(a & 2 == 0):
So C64 has the same behaviour as the Acorn. I'm pretty sure that's based on MS BASIC - Didn't Bill Gates hide an Easter egg in the PET?
Atari 8 bit BASIC ================= No bitwise operators :(
Applesoft BASIC =============== No bitwise operators (apparently
earlier versions had bitwise AND / OR / etc but they were replaced
by logical AND / OR / etc).
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