TotalCalc and EC020 FPU bug?

Leandro Jardim · 19 February 2012, 22:13

WinUAE 2.3/2.4:

The combination of TotalCalc and an EC020 FPU Cycle-Exact doesnt work. The result of any calculation in this configuration will be garbage. This same configuration with SystemPatch crashes Metacomco ABasiC.

Toni Wilen · 20 February 2012, 18:48

URLs to programs needed (or attached here). I don't do any tests unless program is confirmed exact same version.

Leandro Jardim · 20 February 2012, 20:57

Sorry.

TotalCalc:
http://aminet.net/misc/math/TotalCalc1_23.lha

ABasiC:
http://www.rbenda.de/commodore/_basic-1_0.dms
http://aminet.net/dev/basic/ABasiC_patch.lha
http://aminet.net/dev/basic/BasicProgs.lha (cardfile.bas)

For ABasiC, I need to apply the patch and run the Basic program "card_file.bas" (others may work too) with the final executable. On the reopening of the screen it crash.

Ah, I use OS 3.1. Because this I need the patch for ABasiC.

SystemPatch 2.9 (works too):
http://aminet.net/util/boot/SystemPatch299.lha

mark_k · 21 February 2012, 16:22

My guess is the ABasiC issue is not WinUAE-related, unless the problem doesn't happen on a real Amiga with the same config.

I'll post a separate thread about ABasiC, I'd like people to test various ABasiC programs with later Kickstart versions. One issue I've identified so far is that ABasiC only allows a 200-byte stack for its audio task. That could explain crashes I've been seeing with some ABasiC programs which use sound. cardfile.bas does use sound.

Toni Wilen · 25 February 2012, 13:39

FPU problem is unimplemented status/exception flags (INEXACT result in this situation I think)

Not worth the trouble, 99.9% programs that use FPU won't care. This is also difficult to update because intel and motorola FPU status values don't 100% match, it would require more slow emulation code..

(Why did you decide it is EC020 FPU bug? It has nothing to do with CPU model)

Leandro Jardim · 25 February 2012, 20:25

Quote:

Originally Posted by Toni Wilen

(Why did you decide it is EC020 FPU bug? It has nothing to do with CPU model)

I use it most times.

19 February 2012, 22:13	#1
Leandro Jardim Registered User Join Date: Nov 2009 Location: Legoland Age: 45 Posts: 1,461	TotalCalc and EC020 FPU bug? WinUAE 2.3/2.4: The combination of TotalCalc and an EC020 FPU Cycle-Exact doesnt work. The result of any calculation in this configuration will be garbage. This same configuration with SystemPatch crashes Metacomco ABasiC. Last edited by Leandro Jardim; 27 March 2019 at 13:41.

21 February 2012, 16:22	#4
mark_k Registered User Join Date: Aug 2004 Location: Posts: 3,335	My guess is the ABasiC issue is not WinUAE-related, unless the problem doesn't happen on a real Amiga with the same config. I'll post a separate thread about ABasiC, I'd like people to test various ABasiC programs with later Kickstart versions. One issue I've identified so far is that ABasiC only allows a 200-byte stack for its audio task. That could explain crashes I've been seeing with some ABasiC programs which use sound. cardfile.bas does use sound. Last edited by mark_k; 21 February 2012 at 19:56.

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20 February 2012, 18:48	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	URLs to programs needed (or attached here). I don't do any tests unless program is confirmed exact same version.

20 February 2012, 20:57	#3
Leandro Jardim Registered User Join Date: Nov 2009 Location: Legoland Age: 45 Posts: 1,461	Sorry. TotalCalc: http://aminet.net/misc/math/TotalCalc1_23.lha ABasiC: http://www.rbenda.de/commodore/_basic-1_0.dms http://aminet.net/dev/basic/ABasiC_patch.lha http://aminet.net/dev/basic/BasicProgs.lha (cardfile.bas) For ABasiC, I need to apply the patch and run the Basic program "card_file.bas" (others may work too) with the final executable. On the reopening of the screen it crash. Ah, I use OS 3.1. Because this I need the patch for ABasiC. SystemPatch 2.9 (works too): http://aminet.net/util/boot/SystemPatch299.lha

25 February 2012, 13:39	#5
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	FPU problem is unimplemented status/exception flags (INEXACT result in this situation I think) Not worth the trouble, 99.9% programs that use FPU won't care. This is also difficult to update because intel and motorola FPU status values don't 100% match, it would require more slow emulation code.. (Why did you decide it is EC020 FPU bug? It has nothing to do with CPU model)

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