Whdload registers values init

kamelito · 19 March 2023, 12:42

Hello
When you launch a game using Whdload it set some Amiga chipset registers I believed differently for PAL and NTSC (prior to any slave values)
What are those registers and what are the values set for PAL and NTSC?

jotd · 19 March 2023, 17:14

well at least BEAMCON0 is different so the hardware displays PAL or NTSC. The rest is the same AFAIR.

To make sure of that, run a slave with infinite loop and check custom register values with WinUAE. WHDload sets custom registers to be compliant to OCS (FMODE=0) and BPLCONx like WB1.3 bootup.

StingRay · 19 March 2023, 18:06

This information can be easily found in the WHDLoad Autodocs. BEAMCON0 ist not set by WHDLoad.

jotd · 19 March 2023, 18:24

Quote:

Originally Posted by StingRay

This information can be easily found in the WHDLoad Autodocs. BEAMCON0 ist not set by WHDLoad.

correct. It's set by the system, you need to have NTSC monitor active (whdload can also run stuff in dblpal and all, never seen it though)

kamelito · 19 March 2023, 19:23

thanks both of you, of course I searched before asking

19 March 2023, 12:42	#1
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,662	Whdload registers values init Hello When you launch a game using Whdload it set some Amiga chipset registers I believed differently for PAL and NTSC (prior to any slave values) What are those registers and what are the values set for PAL and NTSC?

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19 March 2023, 17:14	#2
jotd This cat is no more Join Date: Dec 2004 Location: FRANCE Age: 51 Posts: 7,369	well at least BEAMCON0 is different so the hardware displays PAL or NTSC. The rest is the same AFAIR. To make sure of that, run a slave with infinite loop and check custom register values with WinUAE. WHDload sets custom registers to be compliant to OCS (FMODE=0) and BPLCONx like WB1.3 bootup.

19 March 2023, 18:06	#3
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,831	This information can be easily found in the WHDLoad Autodocs. BEAMCON0 ist not set by WHDLoad.

19 March 2023, 19:23	#5
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,662	thanks both of you, of course I searched before asking

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