09020: ti99_224: Machine reboots when SAVE command issued

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09020	Misc.	Minor	Always	16 days ago	1 hour ago

Tester	Robbbert	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Bugs That Aren't Bugs	OS	Windows 10/11 (64-bit)
Status [?]	Closed			Driver	ti/ti99_2.cpp
Version	0.272	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	09020: ti99_224: Machine reboots when SAVE command issued
Description	If SAVE is issued, with right or wrong syntax, the machine reboots. The other machine in the driver (ti99_232) works correctly.
Steps To Reproduce	>mame ti99_224 It says to press any key, so do it. You get the menu. Press 1. You get a prompt. You can do any of the normal Basic things here, but if you type SAVE and hit enter, the machine reboots. What should happen is you have to write a small program, for example: 10 PRINT 654 then SAVE CS1 to save the file (you don't need to mount a tape for this exercise). You then get a step by step guide to save the program. Try it out on ti99_232 to get the idea. Note that everything (especially the CS1 device name) must be in uppercase.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	ti99_224

Attached Files

No.22616 AJR Developer 11 days ago	This might fall under BTANB. In response to a SAVE statement, the code looks up a word in a jump table that happens to be 3A80 (which is valid) for ti99_232 and 0000 (obviously not valid) for ti99_224. The driver notes that this version was "an early design," so a few statements were conceivably unimplemented despite not showing the "STMT NOT YET IMPLEMENTED" message. OPEN is another apparently unimplemented statement on ti99_224, where it prints "INTERNAL ERR: PRESS ENTER" then resets after that key is pressed.
No.22718 mizapf Developer 1 hour ago	Please attach the HX5102 Hexbus floppy drive for doing LOAD/SAVE, and only use the 232 version. The 224 is there for the sake of completeness, but it lacks a lot of functions. Also, the OS of the TI-99/2 is really buggy at some parts, with bad error handling. Use option "-hexbus hx5102". The ROMs are in ti_hx5102.zip.

No.22616

AJR

Developer

11 days ago

This might fall under BTANB. In response to a SAVE statement, the code looks up a word in a jump table that happens to be 3A80 (which is valid) for ti99_232 and 0000 (obviously not valid) for ti99_224. The driver notes that this version was "an early design," so a few statements were conceivably unimplemented despite not showing the "STMT NOT YET IMPLEMENTED" message. OPEN is another apparently unimplemented statement on ti99_224, where it prints "INTERNAL ERR: PRESS ENTER" then resets after that key is pressed.

No.22718

mizapf

Developer

1 hour ago

Please attach the HX5102 Hexbus floppy drive for doing LOAD/SAVE, and only use the 232 version. The 224 is there for the sake of completeness, but it lacks a lot of functions. Also, the OS of the TI-99/2 is really buggy at some parts, with bad error handling.

Use option "-hexbus hx5102". The ROMs are in ti_hx5102.zip.