Hello, * On Fri, Apr 13, 2012 at 02:56:00PM +0200 silverdr@wfmh.org.pl wrote: > In the 64 there is a flag at $02A6, which is set on the POST. I don't > recall if this value is used elsewhere in the KERNAL but wouldn't be > surprised if it isn't. It is used with -02 ROMs (and above) for: 1. setting the TA counter of CIA1 for the ticker timer. Note that the timer will be set to 60 Hz in both cases. It is just that the timer value has to account for the different clock frequenceies of Phi2. 2. in the RS232 routines to determine which table of timer values to use (PAL/NTSC) for the baud rate Otherwise, it is unused. In the -01 ROMs, the flag is not even set. It seems the location was not even defined with -01. ;) Regards, Spiro. -- Spiro R. Trikaliotis http://www.trikaliotis.net/ Message was sent through the cbm-hackers mailing listReceived on 2012-04-13 15:00:05
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