Re: 6502 illegal opcodes questions

["Michael J. Mahon" <mjmahon@aol.com>]

Paul Schlyter wrote:
> In article <44809520$0$11067$9b4e6d93@newsread4.arcor-online.net>,
> Linards Ticmanis  <ticmanis@gmx.de> wrote:
>
>
> > Michael J. Mahon wrote:
> >
> >
> > > Actually, I believe that _pragma_ was borrowed from Algol 68,
> > > which must be the most influential least implemented language.  ;-)
> >
> > As they say, Algol was a great improvement on its successors. ;-)
>
>
> Algo was a great programming language -- as long as your program
> didn't have to du any input or any output.  Not having to actually
> implement your program was also a clear advantage, considering the
> scarcity of Algol compilers.... therefore, Algol was for a long time
> used in textbooks as examples of implementing various algorithms.

There was a great (I/O extended) one-and-a-half pass Algol 58 compiler
on the last commercial vacuum tube machine, the Burroughs 220.  It was
a compile-and-go system designed for teaching, but it was both a fast
and an efficient compiler for the time.  It was written entirely in
assembly language, and was the first example of a _virtuoso_ program
I ever saw--and marvelled at.  ;-)

-michael

Parallel computing for 8-bit Apple II's!
Home page:  http://members.aol.com/MJMahon/

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