pouët.net

                                 _ 
 ___ ___ ___ ___ ___ _ _     ___| |
|_ -| _ | -_|  _|  _| | | _ | _ | |
|___|  _|___|___|___|__ ||_||  _|_|
....|_| SAM Coupé |_____|...|_|....

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       Plasmatic Boot Sector

      Boot Sector intro (512b)
      actual length: 499 bytes

          Code: Sir David

      Platform: SAM Coupé 256k

       Speccy.pl Party 2023.1

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                    speccy.pl 2023



Technical notes:

This is the first ever Boot Sector intro for SAM Coupé!
Boot sector is located at side 0, track 4, sector 1 and is 512 bytes long.
It must contain a boot sector tag (4 bytes with a specific value) in the middle (bytes 256-259).
Max length of a DOS file fitting in one sector is 501 bytes.
If you write the sector directly rather than as a file, you can use the full 512 bytes. Remembering of the Boot Sector tag of course.
Boot Sector is always loaded at the begining of the last free RAM page. This is usually the last page just below the screen.
For the CPU it is at #8000 (32768). Once loaded, it jumps to #8009 (32777), treating the first 9 bytes as the file header.

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