Analysis of the Wait_Recal() BIOS routine

[Peer]

Even more digital archeology...

Here is a detailed analysis of the Wait_Recal() BIOS routine and of the hardware deflection protection mechanism of the CRT:

itwww.hs-pforzheim.de/daten/mitarbeiter/johannsen/vectrex_lab/projects/wait_recal/wait_recal.htm

Many Cheers,

Peer

Edit: link fixed, should work now

[VECTREXER]

This URL reference launches more reliably for me.
itwww.hs-pforzheim.de/daten/mitarbeiter/johannsen/vectrex_lab/projects/wait_recal/wait_recal.htm

[Peer]

Jan 14, 2023 11:37:05 GMT -5 VECTREXER said:

This URL reference launches more reliably for me.
itwww.hs-pforzheim.de/daten/mitarbeiter/johannsen/vectrex_lab/projects/wait_recal/wait_recal.htm

Thanks for notifying. I have fixed the link in the initial post.

[Peer]

One of the next steps I have planned is to create a custom BIOS with a patched Wait_Recal() routine which skips the internal Recalibrate() call, and then try several game cartridges with this BIOS and see what happens…