Calculate checksum?

[Jerson]

Look up information for HEX file format. That would be a good place to start. Then again, there are types of HEX files, Intel Hex, Motorola Hex. You need to choose the correct type to decipher the information correctly.

[Demon]

Graduated back in 83 so theory is pretty far in the past.

I would start by compiling a 1 command program and seeing what the listing gives and then go from there.

Robert

[jgauthier]

Thanks! the .HEX file was Intel encoded and I was able to find all the answers using appropriate reference.