On 08/11/2016 04:04 PM, smf wrote: > On 11/08/2016 12:42, Christian Euler wrote: >> The frame timing relies on the vertical blank counter by using >> graphics.library/WaitTOF(). This means that the blinking speed is >> different on a PAL or NTSC machine. >> >> Alerts are displayed on a default PAL (or NTSC) 2-colour hires screen >> mode. > > OCS chips couldn't switch between PAL and NTSC anyway, you were stuck > with the default. Kickstart 1.3 didn't have code to switch between them > either, although you could poke the registers to switch between them if > you had ECS Agnus and Denise fitted. You only needed the ECS AGNUS to be able to switch between PAL and NTSC. DENISE could be left OCS. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2016-08-11 16:00:08
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