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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06334 Gameplay Major Always Jul 29, 2016, 02:26 Jul 29, 2016, 08:41
Tester Justin Kerk View Status Public Platform MESS (Official Binary)
Assigned To Resolution No change required OS Windows Vista/7/8 (64-bit)
Status [?] Closed Driver amiga.cpp
Version 0.176 Fixed in Version Build 64-bit
Summary MESS-specific 06334: a500p: State of the Art demo dies with "Software Failure" error
Description The State of the Art demo by Spaceballs (ADF, CRC 85E6306E) formerly worked in MESS but now causes a crash with a "Software Failure" screen inside the emulated machine shortly after the start of the demo.
Steps To Reproduce mame a500p -flop "117516-State of the Art (1992)(Spaceballs)[TP2#1].zip"
Additional Information This is a regression:
0.152: Demo runs albeit with some graphics glitches. Note driver is named "a500" at this point
0.153: Can't use floppy due to MT05579
0.154: Demo breaks similarly to 0.176 but with a different error message

There were substantial changes to the Amiga driver in 0.154 which are likely responsible.
Regression Version 0.154
Affected Sets / Systems a500p
Attached Files
png file icon 0000.png (4,179 bytes) Jul 29, 2016, 02:26 Uploaded by Justin Kerk
Justin Kerk
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Jul 29, 2016, 08:41
Two issues here:

- a500p is the Amiga 500 Plus driver, that means it uses Kickstart 2.04 as default. The standard Amiga 500 driver is still a500.
- It looks like the demo wants 1 MB RAM, the standard Amiga 500 only has 512 KB now because the expansion interface isn't emulated yet. You can use the a2000 driver as an alternative, and the demo seems to run fine there.