[A83] Re: finding the absolute value of hl


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[A83] Re: finding the absolute value of hl



What is the problem with VTI?

Corey

> Yea, I should have done more of that.  I haven't figured out the
> breakpoints in flashsim yet, and I cannot get VTI to work.  I 
often
> print out the source and work throught it manually.  Anyhow, I am
> feeling kind of stupid now.
> 
> MWM
> 
> On Mon, 04 Au 2003 14:17:21 -0400 brandon sterner 
<bms9019@rit.edu>
> writes:
>> When you're desperate try using an emulator and break 
points, then 
>> trace
>> through the routine in question instruction by instruction.  This 
>> debugging
>> technique works for all but a few very special cases like when 
>> timing is an
>> issue.
>> 
>> brandon
>> 
>> ----- Original Message ----- 
>> From: "Matthew W Marshall" <matthewwmarshall@juno.com>
>> To: <assembly-83@lists.ticalc.org>
>> Sent: Monday, August 04, 2003 11:54 AM
>> Subject: [A83] finding the absolute value of hl
>> 
>> 
>> > Hi all!  I just have short question for a quiet mailing list... to
>> > find the absolute value of hl, is there anything wrong with 
>> this?
>> >
>> >  bit 7,h
>> >  jp z,HL_Is_Positive
>> >  ex hl,de
>> >  or a
>> >  ld hl,0000h
>> >  sbc hl,de
>> >  ex hl,de
>> > HL_Is_Positive:
>> >
>> > I cannot see anything wrong, but I am fighting with this 
>> horrendous bug,
>> > and I am becoming desperate!
>> >
>> > MWM
>> >
>> > 
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>> 
>> 
>> 
>> 
> 
> 
_______________________________________________________________
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