Re: Guru Meditation Exact Visual Specs

From: Christian Euler <>
Date: Fri, 12 Aug 2016 00:10:57 +0200
Message-ID: <>

Am 11.08.2016 um 22:09 schrieb
>> 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.


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Received on 2016-08-11 23:00:03

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