A92: Astonishing problem with register values

To: assembly-92@lists.ticalc.org
Subject: A92: Astonishing problem with register values
From: Arno.Kizina@t-online.de (Arno Kizina)
Date: Mon, 14 Sep 1998 02:01:34 +0200
Delivered-To: assembly-92-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-92@lists.ticalc.org


As you could read before I wrote a disassembler for the68k running on the 92+ 
with plusshell installed.
First it ran well and I corrected some minor errors, then I downloaded plusshell 
0.9 and suddenly nothing worked, lots of opcodes aren't correctly translated and 
often the operands are wrong. Today I took the time to manually disassemble some 
opcodes I had translated with the disassembler before and found out a surprising 
fact : Everything seems to be due to an unawaited change of register D5 which 
seems to be set to always the same value.
As I didn't change the source it is no mistake made by me.
Has anybody else had a problem like that?
Any suggestions?
		A.K.
Arno.Kizina@t-online.de

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