Category:XPL0: Difference between revisions

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'''XPL0''' is essentially a cross between Pascal and C. It was originally created in 1976

'''XPL0''' is essentially a cross between Pascal and C. It looks somewhat like Pascal but works more like C. It was originally created in 1976

by Peter J. R. Boyle, who designed it to run on a 6502 microprocessor as

an alternative to BASIC, which was the dominant language for personal

computers at the time. XPL0 is based on PL/0, an example compiler in the

book ''Algorithms + Data Structures = Programs'' by Niklaus Wirth. The first

XPL0 compiler was written in ALGOL. ~~This~~ was then used to create a compiler

XPL0 compiler was written in ALGOL, which was then used to create a compiler

written in XPL0's syntax.

XPL0 has been implemented on more than a dozen processors, but is

XPL0 has been implemented on more than a dozen processors, but it's

currently maintained for IBM-type PCs. Free, open-source versions of the

currently maintained for IBM-type PCs. Programs run under DOS and under versions of Windows that can still run DOS apps. Free, open-source versions of the

compilers (interpreted, assembly-code compiled, and optimizing) are

available from the official website: xpl0.org [http://www.xpl0.org/]

available from the official website: xpl0.org [http://www.xpl0.org/]. The 32-bit version of the compiler, XPLPX, was used for these Rosetta Code tasks.

Here is how the traditional Hello World program is coded:

Here's how the traditional Hello World program is coded:

<pre>