How to run MIPS code in OSX?

[Aaron Staley]

I am on OSX, and I am currently using the Terminal for emacs and such, and now
that I'm working on HW3, i need some way to run MIPS code that I'm writing.
I've tried logging in and typing xspim into X11, but I get an error saying it
"can't load display". Is there a way to get xspim working in OSX, or is there
another app I should try downloading?

http://www.cs.wisc.edu/~larus/spim.html

[[TA] Jeremy Huddleston]

I am on OSX, and I am currently using the Terminal for emacs and such, and now
that I'm working on HW3, i need some way to run MIPS code that I'm writing.
I've tried logging in and typing xspim into X11, but I get an error saying it
"can't load display".

export DISPLAY=:0

I like using rxvt instead of the OSX terminal, so you might want to look
into that as well...

Is there a way to get xspim working in OSX, or is there
another app I should try downloading?

[[TA] Jeremy Huddleston]

Am I supposed to type "export DISPLAY=:0" after I've logged in? If so... it
doesn't seem to recognize the command.

If you use xterm or rxvt from X, it should be set for you automatically.
If you want to use the OSX terminal instead, you need to set your DISPLAY
variable. Just use xterm to make your life easier. It is started
automatically when you start X (unless you disabled that by editing
your startup scripts in /etc/X11/).

[[TA] Michael Le]

Try adding -X flag to your ssh call.

% ssh -X -l cs61c-fq nova.cs.berkeley.edu

-X says to use X11 forwarding, which may be why you get that error.

~Michael

Post by [TA] Jeremy Huddleston

Am I supposed to type "export DISPLAY=:0" after I've logged in? If so... it
doesn't seem to recognize the command.

If you use xterm or rxvt from X, it should be set for you automatically.
If you want to use the OSX terminal instead, you need to set your DISPLAY
variable. Just use xterm to make your life easier. It is started
automatically when you start X (unless you disabled that by editing
your startup scripts in /etc/X11/).

I have actually tried using xterm as well, and when i ssh in, and try to launch
xspim, i still get the "Error: Can't open display: " problem.

[[TA] Jeremy Huddleston]

I have actually tried using xterm as well, and when i ssh in, and try to launch
xspim, i still get the "Error: Can't open display: " problem.

oh, I see... your problem is you're trying to run xspim on the inst
machines. You should just compile it locally, but if you don't want to do
that, you need to make sure you tunnel X11 back to your machine. Use 'ssh
-X cs61c-***@quasar.cs.berkeley.edu'

--Jeremy

[[TA] Jeremy Huddleston]

Post by Aaron Staley

I am on OSX, and I am currently using the Terminal for emacs and such, and now
that I'm working on HW3, i need some way to run MIPS code that I'm writing.
I've tried logging in and typing xspim into X11, but I get an error saying it
"can't load display". Is there a way to get xspim working in OSX, or is there
another app I should try downloading?

http://www.cs.wisc.edu/~larus/spim.html

UCB spim is a bit different than the latest upstream release, so not
everythig will work as expected.

--Jeremy

[Aaron Staley]

Just wondering how they could differ?
After all, MIPS is MIPS - and MIPS is most simple.

Post by [TA] Jeremy Huddleston

Post by Aaron Staley

I am on OSX, and I am currently using the Terminal for emacs and such, and now
that I'm working on HW3, i need some way to run MIPS code that I'm writing.
I've tried logging in and typing xspim into X11, but I get an error saying it
"can't load display". Is there a way to get xspim working in OSX, or is there
another app I should try downloading?

http://www.cs.wisc.edu/~larus/spim.html

UCB spim is a bit different than the latest upstream release, so not
everythig will work as expected.
--Jeremy