Master-Boot (or similar) for the MZ-80A?

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tjewell
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Master-Boot (or similar) for the MZ-80A?

Post by tjewell » Fri May 17, 2019 9:20 pm

On this page - https://original.sharpmz.org/mz-80k/dldutils.htm - there's an enormously useful program called 'MASTER-BOOT' that can be used to take any program and put it in the boot sector of an MZ-80K disk. I used it to build a Basic boot disk, and a bootable version of Sucopy.

I'd love something similar for the 80A, but the 80K program doesn't work (I'm not that surprised). Anyone seen a program like this for the 80A?

(I note when it runs it says "masterherstellen" which suggests it's German, if that helps anyone).

Thanks, Tony

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mz-80a
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Re: Master-Boot (or similar) for the MZ-80A?

Post by mz-80a » Wed May 22, 2019 7:51 am

Starting to wonder if it's worth disassembling the 80K one and seeing if it can be transcribed to the 80A. Trouble is I don't know the I/O stuff for the 80K.
MZ-80A Secrets
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Sharpworks (Sharp MZ homebrew)
http://mz-sharpworks.co.uk/

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mz-80a
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Re: Master-Boot (or similar) for the MZ-80A?

Post by mz-80a » Fri May 31, 2019 6:46 am

Going forward from this, Tony and I are carrying out some investigations regarding boot sectors etc for the 80A. Will try and report findings here in this thread. Will be starting by dumping the contents of memory $F000 to $FFFF with peripherals attached to see what code is present in that area.
MZ-80A Secrets
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Sharpworks (Sharp MZ homebrew)
http://mz-sharpworks.co.uk/

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mz-80a
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Re: Master-Boot (or similar) for the MZ-80A?

Post by mz-80a » Wed Jun 05, 2019 7:47 am

And this is a dump of memory $F000 to $FFFF on my MZ-80A with the Expansion Unit attached (my unit has both a floppy card and printer card installed). Will start disassembling this code shortly.
Next will be a dump with just one of those cards installed just to see if there are any differences in the code at that memory address.
F000_ALL_PERIPH.zip
(835 Bytes) Downloaded 31 times
MZ-80A Secrets
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Sharpworks (Sharp MZ homebrew)
http://mz-sharpworks.co.uk/

S_U_C
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Re: Master-Boot (or similar) for the MZ-80A?

Post by S_U_C » Tue Aug 20, 2019 1:05 pm

Hi,
the Sharp User Club has just produced a BOOTMASTER addon for their SuperCopy Plus disk coping /file transfer programs.
Why not join the Sharp User Club, their contact information is now John Duxbury sharp.users.club@btinternet.com

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