Path: utzoo!attcan!uunet!lll-winken!ames!ncar!unmvax!indri!polyslo!csun!csuchico!tempest
From: tempest@csuchico.uucp (Kenneth Lui)
Newsgroups: comp.sys.transputer
Subject: Parallel output on TDS2 for the PC
Keywords: Occam
Message-ID: <1989Apr27.120625.5348@csuchico.uucp>
Date: 27 Apr 89 19:06:24 GMT
Organization: California State University, Chico
Lines: 31

I'm just getting the feel of Occam 2 on TDS2.  I"ve written some simple
SEQtype programs and some ALTtype programs.  I'm having some problems
with PAR structures.  Specifically, I want to write a section of code that
would allow two or more parallel processes to output to the screen
concurrently.  I wanted to see if the output of one process within of a PAR
structure would be intermixed with another process.

I used the following code fragment:
	...
	PAR
	  SEQ
	    write.full.string(screen,"String from 'a'")
	    newline(screen)
	  SEQ
	    write.full.string(screen,"String from 'b'")
	    newline(screen)
	...

Needless to say, it doesn't work.  All I got was a big blank from the VDT,
except one carriagereturn or linefeed.  I looked through the example
programs in the c:\tdsxampl subdirectory and it uses other predefined
functions in c:\tdsiolib\interf.tsr.  Hunting through the documentation (which
I have limited access to), I read the section that talked about interf.tsr;
but it's all greek to me.  I kludged around with the functions mentioned,
but all my experiments went down the drain...  Can somebody offer some hints
as to how I might accomplish the above using either userio.tsr, or both
userio.tsr and interf.tsr?

Thanks very much,
Ken
tempest@csuchico.EDU