04158: wjammers: Disassembly incorrect when watchpoints used

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
04158	Debugger	Minor	Always	Dec 29, 2010, 12:50	Aug 7, 2013, 10:01

Tester	Pugsy	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Fixed	OS
Status [?]	Resolved			Driver	neogeo/neogeo.cpp
Version	0.139u2	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	04158: wjammers: Disassembly incorrect when watchpoints used
Description	In wjammers (neogeo) if you place a read watchpoint on 100096 when it hits the watchpoint the disassembly is incorrect. It works properly prior to 0.139u2.
Steps To Reproduce	As soon as the debugger opens type:- wp 100096,1,r,pc==42e0 press F12 and start a game - the watchpoint will hit just prior to starting play. Note pc==42e0 is surplus really.. wp 100096,1,r is enough to show the bug - it just makes things neater to demonstrate the bug that's all.
Additional Information
Github Commit

Flags
Regression Version	0.139u2
Affected Sets / Systems	wjammers

Attached Files	watchpoint_bug.png (126,738 bytes) Dec 29, 2010, 12:50

No.06992 Kale Developer Jan 2, 2011, 15:06	Yes, it more or less happens in several 68k games as per now.
No.06994 AWJ Developer Jan 2, 2011, 16:52	In the lower screenshot, it looks like the disassembler is reading every word byteswapped... both above and below the watchpoint.
No.06996 Kale Developer Jan 2, 2011, 18:33	Yeah, good catch. Something is fucking with the endianess somehow ...
No.09707 AWJ Developer Aug 7, 2013, 00:29	Does this bug still exist in the Windows debugger? It doesn't in the new Qt one, I just checked.
No.09709 Robbbert Senior Tester Aug 7, 2013, 10:01	Checked current svn of 32-bit debug build (0.149u1+), bug is not there. Checked old 64-bit non-debug (0.148u2) bug is not there either. So, seems to be fixed.