remove the Cutter project, now using Ghidra

emulator/.gitignore

@@ -4,3 +4,8 @@ CPU73050.elf
 
 # Compiled program
 list-registers
+
+# Ghidra projects
+*.gpr
+*.rep/
+

emulator/README.md

@@ -1,5 +1,19 @@
-Add the following entries to the repositor's configuration to have Git
-automatically ignore the lines with /home in the project file.
+## Obtaining CPU73050.elf
 
+First extract `CPU73050.dll` from the emulator's files. Then use `objdump`:
+
+```sh
+% objdump CPU73050.dll -O elf32-i386 CPU73050.elf
+```
+
+## Git filter for Cutter projects
+
+Note: currently unused.
+
+Add the following entries to the repositor's configuration to have Git
+automatically ignore the lines with `/home` in the project file.
+
+```sh
 % git config --local filter.remove-home-lines.clean 'sed "/\/home\// d"'
 % git config --local filter.remove-home-lines.smudge cat
+```