From: James Edward Gray II <james@...>
Date: 2006-07-31T23:00:52+09:00
Subject: Re: [QUIZ SOLUTION] #88 Chip-8

On Jul 30, 2006, at 12:17 PM, Tom Rauchenwald wrote:

> Hi,
>
> Here is my solution to the current quiz. It has a few flaws, and it
> uses a method call for each statement (which is probably quite slow).
> The nice thing is that you can dump a program and view it in an
> assembler-like way.
> The implementation is quite simple, I don't think i need to explain it
> in detail. I hope i haven't screwed up somewhere :)

Sure looks good to me.  Here's one trivial suggestion though:

> if ARGV[0]==nil
>   STDERR.puts "Usage: #{$0} <program file>\n"
>   exit 1
> end
> if !File.exist? ARGV[0]
>   STDERR.puts "Error: File not found.\n"
>   exit 1
> end
> emu = Emulator.new
> emu.scan(ARGV[0])
> print "Program read: \n"
> print "============= \n"
> emu.dump_prog
> print "\nRunning... \n\n"
> emu.run
> print "Done! Registers: \n"
> print "================ \n"
> emu.dump

puts() will add a newline character, if it's not already at the end  
of the String you pass to it, so you could lose a lot of \n's above  
if you like.

James Edward Gray II