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C64 65XE NES Debugger V0.64.58.4   [2021]

C64 65XE NES Debugger V0.64.58.4 Released by :

Release Date :
22 February 2021

Type :
Other Platform C64 Tool

Website :

User rating:awaiting 8 votes (4 left)   See votestatistics

Credits :
Code .... Slajerek of Samar Productions
Graphics .... Isildur of Samar Productions
Idea .... Bacchus of Fairlight
  Brush of Elysium
  Digger of Elysium
  Dr.J of Delysid, Finnish Gold
  Isildur of Samar Productions
  Mr Wegi of Elysium
  Slajerek of Samar Productions
  Slammer of Camelot, Starion
  Stein Pedersen of Offence, Panoramic Designs, Prosonix
Test .... Bacchus of Fairlight
  Brush of Elysium
  Digger of Elysium
  Don Kichote of Avatar, Caution, Reliance, Samar Productions
  Dr.J of Delysid, Finnish Gold
  Golara of Desire, Samar Productions
  Isildur of Samar Productions
  Scan of Desire, House Designs
  Slajerek of Samar Productions
  Slammer of Camelot, Starion
  Yugorin of Samar Productions
Help .... Yugorin of Samar Productions

Download :

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User Comment
Submitted by Slajerek on 12 May 2021
@mace what do you mean by "main thread"? there's only one CPU in the C64, so no threads :) of course it is possible to see the IRQ code, if you want to debug the IRQ the easiest way is just to set a breakpoint there.
User Comment
Submitted by Mace on 13 April 2021
Am I correct to assume that it is impossible to see the IRQ code that is running? The assembler view at the right-hand side of the screen only shows the main thread.
User Comment
Submitted by Burglar on 6 March 2021
@map, incredible! I applied all your patches and recompiled and holy cow, it works \o/
thanks a lot for the tips :)
User Comment
Submitted by map on 6 March 2021
@Burglar: with the commit from 23.02.21 I had to perform following changes to build successfully on my Ubuntu20.10:

AtariWrapper.mm line 150:
//volatile UWORD CPU_regPC;

esc.c line 137:
extern int c64d_is_cpu_in_jam_state;

C64D_Version.h line 5-7:
//#define RUN_ATARI
//#define RUN_NES

Additionally I had some odd behaviour when trying to use an older version again.

This helped to fix it:
./c64debugger -clearsettings
User Comment
Submitted by Burglar on 6 March 2021
Just tried this on a relatively clean Ubuntu 20.04 LTS, here are my findings:

1. error libxcb-util.so.0
Same error as reported by others. Installing libxcb stuff does not fix it.

2. compiled from source
executable now "works", except that the vice window is completely black. I see memory output, but nothing useful: pc at 0000, I can scroll through memory, but nothing seems to be initialized.
memory seems filled with the high-byte of the memory page.
User Comment
Submitted by map on 26 February 2021
@Remdy: this is a known issue, see

I also have to build it myself to get it running on my Ubuntu installation.
User Comment
Submitted by Remdy on 26 February 2021
Thanks but maybe you should link it static? still get the ./c64debugger: error while loading shared libraries: libxcb-util.so.0: cannot open shared object file: No such file or directory
User Comment
Submitted by Isildur on 24 February 2021
To max speedup C64DBG on latest Win10 build set:
Use only first CPU: NO (UI settings)
and (optional):
VIC display rec: Each rasterline (Emulation settings)
User Comment
Submitted by HIGHLINE on 23 February 2021
This looks decently incredible.Happy BD man :) so after this you can continue awesoming your "Gray Tracker" pretty please :D !!!
User Comment
Submitted by Digger on 22 February 2021
$ff years Marcin! Scene would not be what it is without this tool! <3
User Comment
Submitted by Carrion on 22 February 2021
Happy BDay Slajerek!
Thanks for your great work with the debugger!
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