Things are never as easy as you're told. I've just

tested the procedure for porting code from THRSim11

to the EVB boards in MWAH 355. Everything written

in Testing_of_Programs is correct.

HOWEVER:

1. Porting a text file from PC to unix leaves ^M characters at the

end of every line. The assembler upstairs _hates_ that.

To fix this, you need to login to the UB system and edit

the program file, NAME.asm. You may use the vi editor available

on UB. DO NOT try doing the edit with the EVB platform, it's

just too hard to use for this editing. You'd be better off using

the AMD boards also in the 355 Lab. Or, better still, telnet

to UB from a PC.

Please know that x (the x key)is the delete character key.

Put your cursor over the unwanted ^M character and press x. Do

this for each line of your program.

If this sounds way too tedious, you may always just type in your program

Directly into a new vi file. Do this right on the EVB board.

2. The asm11 assembler in Lab is extremely fussy about certain things:

a) Labels: All Labels such as DAT1 and START in the example

program need to end with a colon: e.g. START:

b) Case sensitive: all directives, instructions, and hex numbers

need to be lower case. In other words, only

Labels may use Capital letters.

e.g. START: ldda 0fc2

c) No dollar signs: The assembler assumes you're using Hex, and

won't tolerate a $ in front of a number.

3. I maybe haven't made things very clear regarding Lab...

(an understatement???) ..., But hear this: You perform this lab

on your own time. If you get stuck, you need to get help. I am

available to help. Dr. Alba will have a TA with some hours, soon.

That TA will be able to give help as well. WWhen you have a working

Lab, you need my signature on a paper printout of the working

program. That signed paper is a vital part of your report which

is due Friday.

As for my availablility, I have found a TA for my afternoon session of

1315 on Thursdays. I will still be in MWAH 393 most of the day on

thursdays, but you may always pull me out to sign a program (or ask for

a bit of help)

Scott R. Norr, PE

Instructor, ECE Department

MWAH 43, UMD

218-726-8947