Date   : Mon, 04 Feb 2013 21:55:20 +0100
From   : j+bbcmicro@... (J. E. Klasek)
Subject: 6502 coding request

On Mon, Feb 04, 2013 at 07:02:17PM -0000, Andrew Livens wrote:
> I may be wrong, but PAL C64s work on 1/50th don't they ??

You are wrong ;) They always use 1/60. There is TV standard switching
code in the KERNAL with loads appropriate time values to ensure the 1/60
resolution (for the whole time-based stuff, not only the timer
incrementation ...).

See http://unusedino.de/ec64/technical/aay/c64/romfddd.htm

BTW: I used a PAL version all the time and there was always a 1/60 time base.

Johann E. K.