[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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