GhidraTek2465

A Ghidra extension for the venerable Tektronix 2465-series oscilloscopes.

Disassembly

Features

MC6800 and MC6801 language specs for Sleigh.
ROM loader for the 2465 series.
- The original 2465.
- The 2465A/2467.
- The 2465B/2467B early models with through-hole A5 board.
- The 2465B/2467B late models with SMD A5 board.
Creates typed memory blocks for the IO.

This aids analysis as it makes it easy to track down users of different registers using the cross-reference tables Ghidra builds. Also note that different scope versions have different IO register layouts.
Creates typed symbols for the ROM headers
Tags the code pointed to by the vector table as functions for analysis.

This gives the auto analysis a starting points for disassembly and function discovery.
Analyzes banking thunks.

This propagates the disassembly across banks, which allows even more code discovery in auto analysis.
Sets the destination of a banking thunk to the service function.

This aids analysis as when the decompiler encounters a thunk, it displays the ultimate destination of a thunk or a series of thunks, rather than showing the thunk as the destination.
Marks known (banking) functions at load time.

For know ROM part number/version combos, this fully automates the initial auto analysis. Note that it may be necessary to initiate auto analysis a couple of times due to the way the analyzer works.

As a prerequisite, you need to have a Ghidra installation somewhere (an actual installation, not a copy of Ghidra source code!).

export GHIDRA_INSTALL_DIR=/path/to/ghidra
./gradlew

./gradlew -Pghidra.dir=/path/to/ghidra

You can then find a built extension .zip in the dist directory.

Licensed under the Apache License, Version 2.0.