How do unrelated features get broken?

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How do unrelated features get broken?

Barry
Not being a programmer, I'm just wondering how seemingly unrelated
features get broken with firmware changes.

For example, the current decrease in SSB power out with APF.
Another example, the frequency shift casued by chaining memory buffers.

Tnx,
Barry

--

Barry Kutner, W2UP             Lakewood, CO

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Re: How do unrelated features get broken?

wayne burdick
Administrator
Even though features may not be related, one can cause side-effects in  
another due to unintentional modification of variables. Of course we  
jump through a lot of hoops to avoid this, but programmers are  
(unfortunately) human.

73,
Wayne
N6KR

On Nov 13, 2010, at 5:45 AM, Barry wrote:

> Not being a programmer, I'm just wondering how seemingly unrelated
> features get broken with firmware changes.
>
> For example, the current decrease in SSB power out with APF.
> Another example, the frequency shift casued by chaining memory  
> buffers.
>
> Tnx,
> Barry
>
> --
>
> Barry Kutner, W2UP             Lakewood, CO
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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Re: How do unrelated features get broken?

Bill VanAlstyne W5WVO
LOL Wayne, the day when programmers ARE NOT human is the day we had all
better start running for the hills!

Bill W5WVO


-----Original Message-----
From: Wayne Burdick
Sent: Saturday, November 13, 2010 16:53
To: Barry
Cc: [hidden email]
Subject: Re: [Elecraft] How do unrelated features get broken?

Even though features may not be related, one can cause side-effects in
another due to unintentional modification of variables. Of course we
jump through a lot of hoops to avoid this, but programmers are
(unfortunately) human.

73,
Wayne
N6KR

On Nov 13, 2010, at 5:45 AM, Barry wrote:

> Not being a programmer, I'm just wondering how seemingly unrelated
> features get broken with firmware changes.
>
> For example, the current decrease in SSB power out with APF.
> Another example, the frequency shift casued by chaining memory
> buffers.
>
> Tnx,
> Barry
>
> --
>
> Barry Kutner, W2UP             Lakewood, CO
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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Re: How do unrelated features get broken?

kevinr@coho.net
Their are code shooters which create code from one's instructions.  They  
are fast but not the best at crafting algorithms which save space and  
time.  Much like looking at the object files created by compilers when one  
views the raw code spewed by a code shooter a software engineer cringes.  
Let the compilers craft the bulk of the code to save programmer time but  
when necessary get into the assembly language files and craft the best and  
fastest code possible.

Maybe one day there will be a good code shooter but programming is still a  
craft which requires insight and skill.
    73,
       Kevin.  KD5ONS


On Sat, 13 Nov 2010 13:07:21 -0800, Bill VanAlstyne W5WVO  
<[hidden email]> wrote:

> LOL Wayne, the day when programmers ARE NOT human is the day we had all
> better start running for the hills!
>
> Bill W5WVO
>
>
> -----Original Message-----
> From: Wayne Burdick
> Sent: Saturday, November 13, 2010 16:53
> To: Barry
> Cc: [hidden email]
> Subject: Re: [Elecraft] How do unrelated features get broken?
>
> Even though features may not be related, one can cause side-effects in
> another due to unintentional modification of variables. Of course we
> jump through a lot of hoops to avoid this, but programmers are
> (unfortunately) human.
>
> 73,
> Wayne
> N6KR
>
> On Nov 13, 2010, at 5:45 AM, Barry wrote:
>
>> Not being a programmer, I'm just wondering how seemingly unrelated
>> features get broken with firmware changes.
>>
>> For example, the current decrease in SSB power out with APF.
>> Another example, the frequency shift casued by chaining memory
>> buffers.
>>
>> Tnx,
>> Barry
>>
>> --
>>
>> Barry Kutner, W2UP             Lakewood, CO
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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>
>
> ______________________________________________________________
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>
>
> -----
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> Checked by AVG - www.avg.com
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>


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Re: How do unrelated features get broken?

george fritkin
In reply to this post by Bill VanAlstyne W5WVO
One of my  programmer employees once said to me when I asked why is this beta taking so long to clear...he said...." It takes longer to debug software than to write it".  AMEN!!
George, W6GF

--- On Sat, 11/13/10, Bill VanAlstyne W5WVO <[hidden email]> wrote:

From: Bill VanAlstyne W5WVO <[hidden email]>
Subject: Re: [Elecraft] How do unrelated features get broken?
To: "Wayne Burdick" <[hidden email]>, "Barry" <[hidden email]>
Cc: [hidden email]
Date: Saturday, November 13, 2010, 1:07 PM

LOL Wayne, the day when programmers ARE NOT human is the day we had all
better start running for the hills!

Bill W5WVO


-----Original Message-----
From: Wayne Burdick
Sent: Saturday, November 13, 2010 16:53
To: Barry
Cc: [hidden email]
Subject: Re: [Elecraft] How do unrelated features get broken?

Even though features may not be related, one can cause side-effects in
another due to unintentional modification of variables. Of course we
jump through a lot of hoops to avoid this, but programmers are
(unfortunately) human.

73,
Wayne
N6KR

On Nov 13, 2010, at 5:45 AM, Barry wrote:

> Not being a programmer, I'm just wondering how seemingly unrelated
> features get broken with firmware changes.
>
> For example, the current decrease in SSB power out with APF.
> Another example, the frequency shift casued by chaining memory
> buffers.
>
> Tnx,
> Barry
>
> --
>
> Barry Kutner, W2UP             Lakewood, CO
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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Re: How do unrelated features get broken?

N5GE
Unless you debug as you go.  You can reduce some of the bugs by debugging
sections when appropriate, but in the long run debugging takes time and many
project managers don't take that into account.

73,

Tom Childers
Radio Amateur N5GE
Licensed since 1976
QCWA Member 35102

On Sat, 13 Nov 2010 13:21:35 -0800 (PST), george fritkin
<[hidden email]>  wrote:

>One of my  programmer employees once said to me when I asked why is this beta taking so long to clear...he said...."
> It takes longer to debug software than to write it".  AMEN!!
>George, W6GF
>
[snip]

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OT: How do unrelated features get broken?

crmabbott
In reply to this post by Barry
We just think they are not related, funny how software/ hardware
works isn't it Wayne...

73  Chuck AA8VS

-----Original Message-----
From: Wayne Burdick
Sent: Saturday, November 13, 2010 16:53
To: Barry
Cc: [hidden email]
Subject: Re: [Elecraft] How do unrelated features get broken?

Even though features may not be related, one can cause side-effects in
another due to unintentional modification of variables. Of course we
jump through a lot of hoops to avoid this, but programmers are
(unfortunately) human.

73,
Wayne
N6KR

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