Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08890 Timing Minor Always Jul 15, 2024, 17:03 Aug 20, 2024, 11:42
Tester tlindner View Status Public Platform MAME (Self-compiled)
Assigned To Resolution Open OS Windows 10/11 (64-bit)
Status [?] Confirmed Driver
Version 0.267 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08890: coco: Test program show timing issue in MC6847
Description Attached video shows program's test pattern shifting to the right every 4 seconds.
On a real CoCo the timing of the code produces a perfectly stable image.
Steps To Reproduce Start COCO driver with 6809bug.dsk floppy image.
Type: LOADM "RASTERN"
Wait for disk to stop spinning.
Type EXEC
Additional Information
Github Commit
Flags
Regression Version
Affected Sets / Systems coco
Attached Files
zip file icon 6847bug.dsk.zip (1,579 bytes) Jul 15, 2024, 17:03 Uploaded by tlindner
Disk Image with test program.
mp4 file icon 6847_bug.mp4 (3,042,603 bytes) Jul 15, 2024, 17:04 Uploaded by tlindner
Video from MAME showing incorect procession.
jpg file icon IMG_0139-x.JPG (1,982,115 bytes) Jul 15, 2024, 17:09 Uploaded by tlindner
Picture of program's output on real CoCo.
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Notes
1
User avatar
No.22274
Robbbert
Senior Tester
Aug 20, 2024, 11:42
Fixed typo.