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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07083 Crash/Freeze Major Always Sep 1, 2018, 00:09 Mar 23, 2019, 22:15
Tester StHiryu View Status Public Platform MAME (Unofficial Binary)
Assigned To Resolution No change required OS Windows Vista/7/8 (64-bit)
Status [?] Closed Driver spec128.cpp
Version 0.201 Fixed in Version Build 64-bit
Summary MESS-specific 07083: specpl3e: Certain working disks in older releases won't run
Description Recent changes in disk emulation have broken some games. Golden Axe is now unplayable and was running fine in older versions.

Very possibly related to 07081.
Steps To Reproduce 1-Grab disk image (GoldenAxe(MCMSoftwareS.A.).dsk.zip) from http://www.worldofspectrum.org/infoseekid.cgi?id=0002081
2-Run the machine and press enter when Load is selected
3-Choose one and two player controls
4-Turn disk into side b
5-Start 1 player game, you'll see garbage in the game, you are able to move your character, but no more
Additional Information
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Regression Version
Affected Sets / Systems specpl3e
Attached Files
 
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Notes
5
User avatar
No.15589
StHiryu
Tester
Oct 20, 2018, 15:46
-More disk games broken that worked before (http://www.worldofspectrum.org):

Batman-TheMovie.dsk.zip
RoboCop.dsk.zip
User avatar
No.16264
StHiryu
Tester
Mar 23, 2019, 16:20
Golden Axe seems to run fine, without garbage. Batman and Robocop still fail to load.
User avatar
No.16267
AmatCoder
Tester
Mar 23, 2019, 17:14
edited on: Mar 23, 2019, 17:16
Hmm, I do not think those games ever worked (at least those versions).

Robocop has a 'Speedlock +3' protection system. Same for Out Run (MT 06957) and others.
That means 'weak sectors' so we are out of lucky.


Batman-TheMovie has a 'Paul Ownen' protection system. Same for Chase H.Q. and others Ocean releases.
AFAICR, that means that program tries to read higher sectors than EOT (end of track).
Maybe fixable, I will take a look (I think that others emulators just ignore EOT but it is a not good solution for MAME).
User avatar
No.16268
StHiryu
Tester
Mar 23, 2019, 17:26
Yes my fault, you're right. Those games never worked. I think I should use a .tzx image or maybe some other .dsk, like a compilation pack that time. For me this report could be closed since the main problem (golden axe disk) is playable again.
User avatar
No.16269
Robbbert
Developer
Mar 23, 2019, 22:15
Closed on request of the OP.