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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08562 Crash/Freeze Critical (emulator) Always Feb 14, 2023, 16:54 Mar 13, 2023, 01:50
Tester ICEknight View Status Public Platform MAME (Official Binary)
Assigned To crazyc Resolution Fixed OS Windows 10/11 (64-bit)
Status [?] Resolved Driver
Version 0.251 Fixed in Version 0.253 Build 64-bit
Fixed in Git Commit 7daa460 Github Pull Request #
Summary 08562: ibm5150 and clones [digger]: EGA card crashes MAME when loading Digger
Description MAME stops responding when trying to load Digger if the PC is using an EGA graphics card.
Steps To Reproduce Just load the game on any PC system equipped with an EGA card, such as pcega.
Additional Information Might be worth pointing out that I remember having problems getting its graphics to look properly back in the day, on an Amstrad PC. It seemed to load properly (game logic and sounds were there) but 90% of the times the screen was all fuzzy, almost as in old, scrambled pay-TV channels (see but with CGA colors.

I think that loading certain other games before this one could get its graphics to display, but I'm not sure which ones (Paratrooper, maybe?).
Github Commit
Regression Version
Affected Sets / Systems ibm5150 and clones [digger]
Attached Files
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Senior Tester
Feb 14, 2023, 23:40
I tried with pcega and it does indeed completely freeze MAME (not responding).

Because there's no mouse, I had to Ctrl-Alt-Delete, choose Task Manager, noticed MAME's power usage is Very High, consuming all the power of one CPU. I terminated it.
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Mar 9, 2023, 04:05
It programs the hsync start pos past the entire line length. If I clamp it then the game runs corrupted like vga but that breaks the ega bios self test. The display should be disabled so it would be a black screen rather than hanging.
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Mar 13, 2023, 01:49
Fixed by . Graphics are still corrupt but its not configuring the crtc properly and afaict it only works on cga and compatibles.