Hi, Am 11.08.2016 um 22:09 schrieb silverdr@wfmh.org.pl: >> Alerts are displayed on a default PAL (or NTSC) 2-colour hires screen mode. > > That's what I mean - what is the "default" (not set by Workbench). If there is no code for setting the mode to either PAL or NTSC and both ROM and hardware were shared between PAL and NTSC countries then how did it decide which mode to use for the Guru? PAL and NTSC machines use different Agnus chips: 252125-01 IC 8361 AGNUS NTSC AMIGA-1000 252362-01 IC 8367 AGNUS PAL AMIGA-1000 318069-02 IC 8372 FATAGNUS AMIGA-2000 318069-03 IC 8375 HIRES AGNUS 2M A-3000 318069-10 IC 8375 R2 AGNUS HR PAL SMT A-500+/A-600 318069-11 IC 8375 R2 AGNUS HR NTSC SMT 318069-16 IC 8375 R01M HR AGNUS PAL 65NS AMIGA-2000 318069-17 IC 8375 R01M HR AGNUS NTSC 65NS AMIGA-2000 318069-18 IC SM CSG 8375R0 SUP AGNUS 318070-01 IC 8370 R3 FAT AGNUS NTSC AMIGA-500 318071-01 IC 8371 R1 FAT AGNUS PAL AMIGA-500 390544-01 IC 8375 FAT AGNUS AMIGA-500+ 390544-02 IC 8375 AGNUS 2 MEG NTSC A500+ Older Agnus chips are either fixed to PAL or NTSC, never chips can be preconfigured by grounding a pin and/or switched via software. Regards, Chris Message was sent through the cbm-hackers mailing listReceived on 2016-08-11 23:00:03
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