Is there a high level copperlist decoder program?

kamelito · 29 December 2017, 11:57

Is there a high level copperlist decoder program?
You give the program a copperlist (asm) and it tell you info about it.
Like screen resolution, screen format, number of colours etc?
Thanks

phx · 29 December 2017, 14:33

Do you want to analyze a copper list in binary or in assembler (source) form?

Also be aware that such a tool wouldn't give you all the information you expect. Most registers, like display dimensions, colors, resolution, can be set once by the program code and doesn't have to be set every in frame by the copper list. So a minimal working copper list only sets bitplane pointers.

StingRay · 29 December 2017, 15:21

I wrote a copperlist disassembler decades ago (when AGA appeared) to check the system copperlist. Not sure I still have it somewhere though. And coding something like this can be done easily anyway so why not try it yourself?

kamelito · 29 December 2017, 19:21

ASM as a source of the copperlist.
Yeah writing such tool cool be a nice exercice to activate the cells of my lazy brain.

pandy71 · 30 December 2017, 17:41

Perhaps Copper simulator with visible results and timing - sounds like good feature for WinUAE.

mark_k · 30 December 2017, 18:59

There are a few copper disassemblers on Aminet. Their output is probably not as high-level as you'd like, but maybe worth checking anyway?
CopDis, ReCop, CopperDecode, ListCop, copdis210

kamelito · 30 December 2017, 20:31

I tried them all but copperdecode, I'm going to give it a go.
Could also been a good addition to WinUAE no?

Toni Wilen · 30 December 2017, 20:44

It gets really problematic when copper list is more complex than what graphics.library creates.

For example is there one or two or more "screens" when only BPLCON1 changes in scan lines x,y and z but DIW or DDF does not. (and this was one of the most basic problems that can happen..)

Not even emulation knows "the big picture" of copper list, it just emulates it cycle by cycle.

pandy71 · 31 December 2017, 13:30

Quote:

Originally Posted by Toni Wilen

It gets really problematic when copper list is more complex than what graphics.library creates.

For example is there one or two or more "screens" when only BPLCON1 changes in scan lines x,y and z but DIW or DDF does not. (and this was one of the most basic problems that can happen..)

Not even emulation knows "the big picture" of copper list, it just emulates it cycle by cycle.

IMHO something like 'profiler' - cycle exact simulator perhaps reusing WinUAE but with focus on development - spinoff from regular emulator... perhaps some plugin to WinUAE able to export every cycle internal state of machine with associated analyzer... sounds like big tool... especially that still some Amiga HW aspects are unknown... (IMHO can't be resolved until real silicone will be not mapped to netlist - similar as visual6502 project)

mcgeezer · 01 January 2018, 17:13

I just use the one built into the action replay, works great - might not be as high level as u like though.

Wepl · 02 January 2018, 21:56

To display the copper list from dumps created by WHDLoad the SP tool (contained in the dev package) can be used. Dumps must be created with active Snoop option.

29 December 2017, 11:57	#1
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,801	Is there a high level copperlist decoder program? Is there a high level copperlist decoder program? You give the program a copperlist (asm) and it tell you info about it. Like screen resolution, screen format, number of colours etc? Thanks

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29 December 2017, 14:33	#2
phx Natteravn Join Date: Nov 2009 Location: Herford / Germany Posts: 2,496	Do you want to analyze a copper list in binary or in assembler (source) form? Also be aware that such a tool wouldn't give you all the information you expect. Most registers, like display dimensions, colors, resolution, can be set once by the program code and doesn't have to be set every in frame by the copper list. So a minimal working copper list only sets bitplane pointers.

29 December 2017, 15:21	#3
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	I wrote a copperlist disassembler decades ago (when AGA appeared) to check the system copperlist. Not sure I still have it somewhere though. And coding something like this can be done easily anyway so why not try it yourself?

29 December 2017, 19:21	#4
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,801	ASM as a source of the copperlist. Yeah writing such tool cool be a nice exercice to activate the cells of my lazy brain.

30 December 2017, 17:41	#5
pandy71 Registered User Join Date: Jun 2010 Location: PL? Posts: 2,743	Perhaps Copper simulator with visible results and timing - sounds like good feature for WinUAE.

30 December 2017, 18:59	#6
mark_k Registered User Join Date: Aug 2004 Location: Posts: 3,335	There are a few copper disassemblers on Aminet. Their output is probably not as high-level as you'd like, but maybe worth checking anyway? CopDis, ReCop, CopperDecode, ListCop, copdis210

30 December 2017, 20:31	#7
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,801	I tried them all but copperdecode, I'm going to give it a go. Could also been a good addition to WinUAE no?

30 December 2017, 20:44	#8
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	It gets really problematic when copper list is more complex than what graphics.library creates. For example is there one or two or more "screens" when only BPLCON1 changes in scan lines x,y and z but DIW or DDF does not. (and this was one of the most basic problems that can happen..) Not even emulation knows "the big picture" of copper list, it just emulates it cycle by cycle.

01 January 2018, 17:13	#10
mcgeezer Registered User Join Date: Oct 2017 Location: Sunderland, England Posts: 2,702	I just use the one built into the action replay, works great - might not be as high level as u like though.

02 January 2018, 21:56	#11
Wepl Moderator Join Date: Nov 2001 Location: Germany Posts: 866	To display the copper list from dumps created by WHDLoad the SP tool (contained in the dev package) can be used. Dumps must be created with active Snoop option.

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