Programs for example need to be set on the correct core .ini file depending if its an ntsc/pal file(s) os / game you are loading (Amiga/AtariST etc). See below.
Ie: If your game is down too far on the screen so as you cant see the bottom, it would normally be because its an NTSC screen, with a PAL game loaded see note below.
This would have been common with say Amiga versions of NTSC 320×200 and PAL 320×256 pixel games of the same game. The opposite would also occur.
Note: “replay_amiga_pal.ini is the same as replay.ini except for the base clock settings. You only need to use this if you want accurate PAL clocking, or you are using composite / svideo output.”
Also these options in your replay.ini or replay_amiga_pal.ini are the most common settings for controlling the pal / ntsc switches.
# PRE PROCESSING PART
a)
#clocks
(Set pal)
# NTSC M1 N1 M2 N2 M3 N3 | p0 p1 p2 p3 p4 p5 | d0 d1 d2 d3 d4 d5 | y0 y1 y2 y3 y4 y5
#CLOCK = 33, 280, 27, 133, 225,2048, 1, 1, 0, 0, 1, 0, 2,16, 1, 1, 8, 1, 1, 1, 1, 0, 1, 0
# PAL M1 N1 M2 N2 M3 N3 | p0 p1 p2 p3 p4 p5 | d0 d1 d2 d3 d4 d5 | y0 y1 y2 y3 y4 y5
CLOCK = 481,4044, 46, 423, 225,2048, 1, 2, 0, 0, 1, 0, 2,14, 1, 1, 8, 1, 1, 1, 1, 0, 1, 0
b)
# sets composite/svhs coder, if fitted
(Set pal)
#coder = NTSC_NOTRAP
coder = PAL_NOTRAP
c)
# menu entry – AMIGA VIDEO
title = “AV Settings”
(set pal)
item = “Mode”, 0x00000010,static
option = “PAL”, 0x00000000,default
option = “NTSC”,0x00000010