06549: All sets in pcipc.cpp: [debug] Assert when starting emulation

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06549	Crash/Freeze	Critical (emulator)	Always	Apr 26, 2017, 20:12	Jun 3, 2017, 01:03

Tester	Tafoid	View Status	Public	Platform	MAME (Self-compiled)
Assigned To	AJR	Resolution	Fixed	OS	Windows Vista/7/8 (32-bit)
Status [?]	Resolved			Driver	pc/pcipc.cpp
Version	0.185	Fixed in Version	0.186	Build	Debug
		Fixed in Git Commit		Github Pull Request #

Summary	06549: All sets in pcipc.cpp: [debug] Assert when starting emulation
Description	Fatal error: Handler driver_data::pam0_r specifies 3 subunits with a mask of 00000000FFFFFF00; needs to be a power of 2
Steps To Reproduce
Additional Information
Github Commit

Flags	Debug build specific
Regression Version
Affected Sets / Systems	All sets in pcipc.cpp

Attached Files

No.13868 Osso Moderator Jun 2, 2017, 09:32	This doesn't happen with a 0.186 64 bit debug build. Can anyone confirm?
No.13876 AJR Developer Jun 3, 2017, 01:02	The "power of 2" restriction was relaxed in 902d2d924b8d2586ec1077a2291525ea42d17dc1, though I fixed this specific issue even before that in 25e08899bf86db6fe64951a5b1b7bc0e1f9207a9. It's still possible for improper subunit mapping to produce a fatal error in non-debug builds as well; this will probably only occur when devices that dynamically insert memory handlers make incorrect assumptions about bus width, as wd7600 did before 39a0d362de134d66a8a266e60012975beaa8bbd9.

No.13868

Osso

Moderator

Jun 2, 2017, 09:32

This doesn't happen with a 0.186 64 bit debug build. Can anyone confirm?

No.13876

AJR

Developer

Jun 3, 2017, 01:02

The "power of 2" restriction was relaxed in 902d2d924b8d2586ec1077a2291525ea42d17dc1, though I fixed this specific issue even before that in 25e08899bf86db6fe64951a5b1b7bc0e1f9207a9.

It's still possible for improper subunit mapping to produce a fatal error in non-debug builds as well; this will probably only occur when devices that dynamically insert memory handlers make incorrect assumptions about bus width, as wd7600 did before 39a0d362de134d66a8a266e60012975beaa8bbd9.