07935: trs80m2: Cannot boot any disks

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
07935	Media Support	Critical (emulation)	Always	Apr 10, 2021, 14:10	Apr 15, 2021, 01:14

Tester	Robbbert	View Status	Public	Platform	MAME (Official Binary)
Assigned To	galibert	Resolution	Fixed	OS	Windows 10 (64-bit)
Status [?]	Resolved			Driver	trs/trs80m2.cpp
Version	0.230	Fixed in Version	0.231	Build	64-bit
		Fixed in Git Commit	9ff6d01	Github Pull Request #

Summary	07935: trs80m2: Cannot boot any disks
Description	Unable to load any disk except one. That one gives "boot error". This makes the machine unusable. Since all the software is IMD, my guess it broke with the recent change to IMD handling. I also have a bunch more IMD software for this machine, and none of it works either.
Steps To Reproduce	mame trs80m2 (any software item), you use cpm22 as a disk that used to work.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	trs80m2

Attached Files

No.18677 Tafoid Administrator Apr 12, 2021, 04:05	This appears to have regressed AFTER 0.230. https://github.com/mamedev/mame/actions/runs/705240913
No.18678 Robbbert Senior Tester Apr 12, 2021, 04:10	Thanks, and from IRC https://github.com/mamedev/mame/commit/905e758b9337eec9da5e7485ee20e28c2f2cb8e1
No.18693 Robbbert Senior Tester Apr 15, 2021, 01:11	The system is now working the same as it was on 0.228 (not very well). However the scripsit disk can be made to crash on exit, which didn't happen before.