Skip to content
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
39 lines (30 sloc) 1.87 KB


PatchWork is an Amiga debugging tool like Enforcer or Mungwall. It patches library calls and validates the parameters against the AutoDocs. Illegal parameters (e.g. NULL where a pointer is expected) are reported. PatchWork helps you make your code more robust.


  • Validates commodities, dos, exec, gadtools, graphics, intuition and utility library calls.
  • Reports to the debugging console (e.g. Sushi).
  • Shows a code extract of the violating code if DisLib by Thomas Richter is installed.
  • 100% hand-made assembler code, so PatchWork only has a neglectable performance impact on your system.
  • Works on any CPU, no MMU required.
  • GPL licensed, open source.
  • Source Code is available at GitHub.

Example Output

This is how a PatchWork hit looks like:

exec.library OldOpenLibrary("dos.library")
Severity 1: obsoleted, use OpenLibrary() instead
PC=08339720 TCB=08399D58 ("Shell Process")
Data: 00000001 020CE5C5 00004000 08350BA4 00000001 00000001 020CFF85 08339714
Addr: 08350BA4 08339732 08014E0C 08339714 084F3C08 00F92D70 0800083C 084F3BFC
----> 08339732 - "pwtest"  Hunk 0000, Offset 0000001A
----> 00F92D70 - "ROM - dos 39.23 (8.9.92)"  Hunk 0000, Offset 00000314
PC-8: 00000000 00000000 0833653C 00000000 00000030 00000000 43FA0018 2C780004
PC *: 4EAEFE68 22402C78 00044EAE FE627000 4E75646F 732E6C69 62726172 79004E71
Stck: 084F3BFC 08339724 00F9359C 00004000 0839A74C 08533B40 00001970 48E7303E
Stck: 24482649 61A66730 2C6A0018 206A0014 4EAEFF94 2848204B 610000B8 661C2449
----> 08339720 - "pwtest"  Hunk 0000, Offset 00000008
----> 08339724 - "pwtest"  Hunk 0000, Offset 0000000C
----> 00F9359C - "ROM - dos 39.23 (8.9.92)"  Hunk 0000, Offset 00000B40


PatchWork is distributed under GPLv3 (Gnu Public License).

You can’t perform that action at this time.