The disassembler decodes the binary data coming into the HP logic analyzer and translates it from binary to Assembly, that is, it goes in the reverse direction from an Assembler. This makes it much easier to tell what instructions IcpuED or your processor is executing at any given time.

The disassembler can also be used with the HP Software Analyzer to make a close correspondence between the executing or dynamic code on the logic analyzer and the code-as-written (source code) or static code on the host.

The next section will describe how to use the canned IcpuED disassembler (or any disassembler) on the HP logic analyzer. The last section will give some tips on how to proceed should you want to customize the IcpuED disassembler or write a completely new one.

1. First, go to an ICED lab station in Kelley 220.
2. Login to the ACES PC there.
3. Copy the IICPUED.* files to the c:\IAL directory on the PC.
4. Place a blank IBM formatted 3.5 in floppy diskette into the analyzer. (Yes, this is a bit of a kluge, but there doesn't seem to be a way around it.)
5. Download the disassembler to the logic analyzer by...

1. Navigate to the "analyzer/format" screen.
2. Create "ADDR", "DATA" and "STATUS" fields 24, 32 and 8 bits in length, respectively (for IcpuED). You will need all four of the analyzer's pods.
3. ....