08111: dn3500 and clones: Apollo machines cannot load programs from tape

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08111	Crash/Freeze	Major	Always	Oct 15, 2021, 16:01	Oct 16, 2021, 23:30

Tester	r09	View Status	Public	Platform	MAME (Official Binary)
Assigned To	AJR	Resolution	Fixed	OS	Windows 10/11 (64-bit)
Status [?]	Resolved			Driver	apollo/apollo.cpp
Version	0.236	Fixed in Version	0.237	Build	64-bit
		Fixed in Git Commit	43e25e6	Github Pull Request #

Summary	08111: dn3500 and clones: Apollo machines cannot load programs from tape
Description	All Apollo machines hang forever when trying to load a program from tape, which makes it impossible to install the OS. This seems to be a regression, since versions before 0.234 worked fine. This also seems to prevent the OS from booting from HDD in newer versions once installed.
Steps To Reproduce	- Delete the dn3500 CFG and NVRAM files so the machine is in the default state - Run "mame dn3500 -ctape domainos" (needs the "domainos" set from the software list) - When the machine starts, press ENTER a few times until the "MD7C REV 8.00..." message appears - Run the command DI C - Run the command EX CONFIG - Wait approximately 7 minutes for the tape to load (can be fast-forwarded) On versions 0.233 and older, the configuration program appears (see screenshot for what it should look like) On versions 0.234 and newer, the machine never finishes loading the program.
Additional Information
Github Commit

Flags
Regression Version	0.234
Affected Sets / Systems	dn3500 and clones

Attached Files	dn3500_mame233.png (17,378 bytes) Oct 15, 2021, 16:01 Uploaded by r09

No.19347 AJR Developer Oct 15, 2021, 17:47 edited on: Oct 15, 2021, 19:21	https://github.com/mamedev/mame/commit/3b151130022e04fc6d4111fbf3aeec295e2659fb might or might not be the cause of this regression.
No.19353 Tafoid Administrator Oct 15, 2021, 19:21	That commit I've ID'd as the killer, as near as I can tell, from daily build testing.