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Path: utzoo!linus!philabs!cmcl2!seismo!hao!noao!terak!mot!anasazi!duane
From: duane@anasazi.UUCP (Duane Morse)
Newsgroups: net.sources
Subject: z80dis.c bug fix & small enhancement
Message-ID: <394@anasazi.UUCP>
Date: Mon, 9-Dec-85 10:55:30 EST
Article-I.D.: anasazi.394
Posted: Mon Dec  9 10:55:30 1985
Date-Received: Wed, 11-Dec-85 21:53:04 EST
Distribution: net
Organization: Anasazi, Phoenix Az.
Lines: 35

I discovered that my z80dis.c (z80 disassembler) had a small bug in
handling jump relative instructions. Routine dorela wasn't being used
properly, and this results (sometimes) in garbage being displayed on
a jump relative instruction. I fixed this.

While I was in this area anyway, I changed the code to display the full
address on a jump relative instead of a plus or minus offset.
----------------------SCCSDIFF for z80dis.c (r1.1 to r1.2)------------
463c463
<   dorela();
---
>   dorela(NULL);
485a486
>   unsigned short addr;
488c489,490
<   sout(s);
---
>   if (s != NULL)
>     sout(s);
492,498c494,496
<   if (offset < 0) {
<     offset = -offset;
<     sout(".-");
<   }
<   else
<     sout(".+");
<   hex2(offset);
---
>   addr = labeladdr;
>   hex2(addr >> 8);
>   hex2(addr);
-- 

Duane Morse	...!noao!{terak|mot}!anasazi!duane
(602) 870-3330