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There's something similar in the PIC instruction set...
Byeeeeeeeeeeeeeeeeee
Bye lizzy
Eeyore was very glad to be able to stop thinking for a little, in order to say "How do you do" in a gloomy manner to Pooh.
"And how are you?" said Winnie-the-Pooh.
Eeyore shook his head from side to side. "Not very how," he said. "I don't seem to felt at all how for a long time."
I was a Z80 girl myself - actually I was the only girl on the course!
DJNZ was such a lovely little instruction
I remember when I was a games programmer, the Speccy guru at the desk next to me, converting a game from the ST, determined that he needed a square root routine (intersection of an arrow with a target in the archery segment).
So he thought for a moment, and implemented the Newton-Raphson iterative algorithm, in Z80, off the top of his head
It wasn't fast enough (took about ten frames or something), so I spent an hour or two digging through old copies of Personal Computer World that evening, and found what I vaguely remembered reading some years before - a super-fast Z80 integer square root function.
Took it into work for him the next day - worked a treat
I've since read a detailed explanation of how and why it works (in the book Hacker's Delight) and I still don't understand it
I remember when I was a games programmer, the Speccy guru at the desk next to me, converting a game from the ST, determined that he needed a square root routine (intersection of an arrow with a target in the archery segment).
So he thought for a moment, and implemented the Newton-Raphson iterative algorithm, in Z80, off the top of his head
It wasn't fast enough (took about ten frames or something), so I spent an hour or two digging through old copies of Personal Computer World that evening, and found what I vaguely remembered reading some years before - a super-fast Z80 integer square root function.
Took it into work for him the next day - worked a treat
I've since read a detailed explanation of how and why it works (in the book Hacker's Delight) and I still don't understand it
Wow cool site... I'm going waste some time there later
Eeyore was very glad to be able to stop thinking for a little, in order to say "How do you do" in a gloomy manner to Pooh.
"And how are you?" said Winnie-the-Pooh.
Eeyore shook his head from side to side. "Not very how," he said. "I don't seem to felt at all how for a long time."
No I've always been a bit geeky... I was rather popular though - something to do with the length of my skirts I suspect
Eeyore was very glad to be able to stop thinking for a little, in order to say "How do you do" in a gloomy manner to Pooh.
"And how are you?" said Winnie-the-Pooh.
Eeyore shook his head from side to side. "Not very how," he said. "I don't seem to felt at all how for a long time."
A girl who isn't put off by geeky discussions is every geek's dream. They may even change their underpants for that sort of babe.
Ewww....
I'm not sure I would've described myself as a "babe" even then...
Being the only girl on the course did have advantages though
Eeyore was very glad to be able to stop thinking for a little, in order to say "How do you do" in a gloomy manner to Pooh.
"And how are you?" said Winnie-the-Pooh.
Eeyore shook his head from side to side. "Not very how," he said. "I don't seem to felt at all how for a long time."
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