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C64 Debugger V0.64   [2017]

C64 Debugger V0.64 Released by :
Samar Productions [web]

Release Date :
24 December 2017

Type :
Other Platform C64 Tool

Website :

User rating:awaiting 8 votes (2 left)   See votestatistics

Credits :
Code .... Slajerek of Samar Productions
Idea .... Slajerek of Samar Productions
Test .... Brush of Elysium
  Don Kichote of Avatar, Caution, Reliance, Samar Productions
  Dr.J of Delysid
  ElfKaa of Avatar
  Isildur of Samar Productions
  Mr Wegi of Elysium
  Scan of Desire, House Designs
  Yugorin of Samar Productions

Download :

Look for downloads on external sites:

User Comment
Submitted by XmikeX on 14 December 2018
..... in an alternate universe, C128 Debugger v0.128 ...

... one has to dreeam a little !
User Comment
Submitted by Slajerek on 8 March 2018
iAN CooG: you're right upx -d changes the binary (of course), and thus the signed app is not valid anymore. In addition to upx -d the signing of the app must be stripped too.
User Comment
Submitted by Bacchus on 7 January 2018
This is still a *fantastic* piece of software. I use this and Vice in parallel to do my stunts.
User Comment
Submitted by iAN CooG on 30 December 2017
upx -d makes the exe not runnable anymore
User Comment
Submitted by Slajerek on 30 December 2017
Thanks for comments.
Yes, the Vice monitor is not hooked yet, I tried this but found strange issues, current monitor is a kind of workaround for this temporarily and definitely I plan to have classic Vice monitor console included too... will be soon :)

Executable is packed using UPX and then code is signed, the same way as previous version. Interesting that your AV found problem only with this version, I did not have this issue on my setup... anyway, you can try to unpack the exe and see if the problem persists.
User Comment
Submitted by iAN CooG on 28 December 2017
ah now I see, this doesn't come with normal vice monitor, I see now what the difficulty is.
User Comment
Submitted by iAN CooG on 28 December 2017
la-style: you're using a wrong command for setting bytes
> 1000 ad
> 1234 ad 01 20
etc, that's how it should be used
filling a single byte is a contradiction in terms ;)
Anyway filling a single byte
f 1000 1000 ad
works for me in VICE, even if it's overkill for setting just one or two bytes, use >
User Comment
Submitted by Frantic on 28 December 2017
Great version number!
User Comment
Submitted by lA-sTYLe on 28 December 2017
In Monitor i always have to select a range of atleast 2 Bytes to fill a memory Location. You are not able to fill just 1 byte. It always has to be atleast F 1000 1001 31, I cant to F 1000 1000 31
User Comment
Submitted by Viscid on 27 December 2017
Yes, i definately don't blame it on the tool but on the scanner. I decided to make an exclusion for this special file, but anyhow it's a very wellused scanner (Avira) and even if Virustotal reports it as no virus, it's blocked by the real one. Older Versions of the Debugger work, so maybe go back to the old Header?
User Comment
Submitted by chatGPZ on 27 December 2017
Pattern "HEUR/APC (Cloud)" found

lol snakeoil
User Comment
Submitted by iAN CooG on 27 December 2017
It would be better without upx compression, even if it's well known, stupid AVs often, not knowing better, just report them as possible threat.
BTW virustotal says it's 100% clean, so you are using some very wrong AVs or not updated signatures.
User Comment
Submitted by Dano on 27 December 2017
having there virusscanner issue here aswell. strangely it got introduced with the latest version. did not have that in the previous versions?
User Comment
Submitted by soci on 27 December 2017
What about compiling from sources? ;)
User Comment
Submitted by Viscid on 27 December 2017
I'm not able to use the Windows-Version as most virusscanners actually block it. I guess this is related to something like an UPX-header or whatsoever. Is there any workaround (except of turning the scanner off)? --> Pattern "HEUR/APC (Cloud)" found
User Comment
Submitted by lA-sTYLe on 27 December 2017
Is it possible to Remap the Keys ond Joystick somhow. I am stuck using Tab for Joystick Fire for years now :-) couldnt find anything in the readme about that.
User Comment
Submitted by Dr.j on 26 December 2017
Great tool !!! thanks millions times Marcin for creating this ultimate tool for debugging and researching.
User Comment
Submitted by xIII on 24 December 2017
Great Tool !
User Comment
Submitted by Pushead on 24 December 2017
Great tool for debugging cycle exact timing!
User Comment
Submitted by Ant (Anthony Stiller) on 24 December 2017
C64 Debugger is vital to my C64 game dev and this update is excellent. Thank you!
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