06231: poly88: Cassette is not working

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06231	Interface	Minor	Always	Jun 2, 2016, 14:19	Sep 8, 2019, 12:54

Tester	demotester	View Status	Public	Platform
Assigned To	Robbbert	Resolution	Fixed	OS
Status [?]	Resolved			Driver	poly88/poly88.cpp
Version	0.174	Fixed in Version	0.212	Build
		Fixed in Git Commit		Github Pull Request #

Summary	06231: poly88: Cassette is not working
Description	It seems that the cassette emulation is not working ! This will be shown with an example by saving from the BASIC ! Quick infos: About Poly-88 computer - http://www.polymorphic-computers.com/poly88.html [DEAD LINK] Other emu for DOS - http://www.polymorphic-computers.com/emulator.html [DEAD LINK] Note: on the bottom of this page is "POLYTAPE.ZIP" - find the file called "BASIC.IMG" ! About the BASIC in "Basic.pdf" (@p.76, Saving and Loading a BASIC Program) - http://www.hartetechnologies.com/manuals/PolyMorphic/
Steps To Reproduce	Attach the file called "BASIC.IMG" to MESS/MAME emu Snapshot ! (wait until the BASIC appears) In BASIC type an program example: >10 PRINT "POLY-88 COMPUTER" Now try to save it on tape, but 1st create a new tape called f.ex. "TEST.WAV": In BASIC type following commands: >SAVE,TEST,B (to save in "Byte" format) or >SAVE,TEST,P (to save in "Polyphase" format) Note: before pressing the RETURN-key be sure that the tape is in the Recording mode and starts to record ! According to the "Basic.pdf" on p.81, points 6. and 7. (and point 2.): @point 6. - basic will respond with message "Working...", and give the record numbers of the current tape records ! (this seems to work) @point 7. - after the tape has been recorded, BASIC will respond with a prompt ">" ! (this seems NOT working - the saving never finish) @point 2. - remember to set the "Poly / Byte" switch on the back of PolyMorphic System ! (but there is not a such switch/option in MESS !) Some example photos - http://old-computers.com/museum/photos.asp?t=1&c=563&st=1 Click on "Back panel" picture - the red switch is used to modify the tape record speed ! (this option seems missing in MESS !) So, it is currently impossible to save / load a BASIC program (and any other) to / from tape in MESS ! EDIT: cassette tape interface with the red switch (from inside) - http://www.polymorphic-computers.com/images/cassette1.jpg [DEAD LINK] (boards: http://www.polymorphic-computers.com/boards.html ) [DEAD LINK]
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	poly88

Attached Files

No.16535 Robbbert Senior Tester Jun 13, 2019, 13:26	The hang seems to be caused by the same UART fault reported in MT 07353.
No.16545 Robbbert Senior Tester Jun 14, 2019, 15:12	Fixed hang on save, but the result sounds odd and cannot be loaded back in.
No.16549 AJR Developer Jun 14, 2019, 19:54	Polyphase format is unlikely to work in MAME, given that it uses the 8251 USART's synchronous mode which is not really emulated at this point.
No.16642 Robbbert Senior Tester Jul 11, 2019, 17:41 edited on: Jul 11, 2019, 17:42	300 baud is fixed and working. Polyphase is coded in, but multiple bugs in the 8251 uart code are preventing it from working. The 8251 is planned to be revisited at another time. Also note, BASIC.IMG has a bug which prevents the uart from working at all. I had to modify this image.
No.16676 Robbbert Senior Tester Jul 19, 2019, 15:58	Re-opened, as the conversion to S100 broke the cassette again.
No.16870 Robbbert Senior Tester Sep 8, 2019, 12:54	Polyphase is now working.