1QN representation

Started by knight September 17, 2008
Hi

how can i represent any number in 32 bit signed 1QN format..
Let it be -1.5
knight <krsheshu@gmail.com> writes:

> Hi > > how can i represent any number in 32 bit signed 1QN format.. > Let it be -1.5
What is "1QN" format? -- % Randy Yates % "She has an IQ of 1001, she has a jumpsuit %% Fuquay-Varina, NC % on, and she's also a telephone." %%% 919-577-9882 % %%%% <yates@ieee.org> % 'Yours Truly, 2095', *Time*, ELO http://www.digitalsignallabs.com
On Sep 17, 10:40&#2013266080;am, Randy Yates <ya...@ieee.org> wrote:
> knight <krshe...@gmail.com> writes: > > Hi > > > how can i represent any number in 32 bit signed 1QN format.. > > Let it be -1.5 > > What is "1QN" format? > -- > % &#2013266080;Randy Yates &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;% "She has an IQ of 1001, she has a jumpsuit
> %% Fuquay-Varina, NC &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080;% &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;on, and she's also a telephone."
> %%% 919-577-9882 &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080;%
> %%%% <ya...@ieee.org> &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; % &#2013266080; &#2013266080; &#2013266080; &#2013266080;'Yours Truly, 2095', *Time*, ELO &#2013266080;http://www.digitalsignallabs.com Both, Google is your friend. Regards. Ken
Ken Asbury <avoidingspam2001@yahoo.com> writes:

> On Sep 17, 10:40&#2013266080;am, Randy Yates <ya...@ieee.org> wrote: >> knight <krshe...@gmail.com> writes: >> > Hi >> >> > how can i represent any number in 32 bit signed 1QN format.. >> > Let it be -1.5 >> >> What is "1QN" format? >> -- >> % &#2013266080;Randy Yates &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;% "She has an IQ of 1001, she has a jumpsuit
>> %% Fuquay-Varina, NC &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080;% &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;on, and she's also a telephone."
>> %%% 919-577-9882 &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080;%
>> %%%% <ya...@ieee.org> &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; % &#2013266080; &#2013266080; &#2013266080; &#2013266080;'Yours Truly, 2095', *Time*, ELO &#2013266080;http://www.digitalsignallabs.com
> > Both, > > Google is your friend.
Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time sifting through the results looking for the gold specks in a bunch of dirt, and often they aren't there. -- % Randy Yates % "Remember the good old 1980's, when %% Fuquay-Varina, NC % things were so uncomplicated?" %%% 919-577-9882 % 'Ticket To The Moon' %%%% <yates@ieee.org> % *Time*, Electric Light Orchestra http://www.digitalsignallabs.com
On Sep 17, 11:11&#2013266080;am, Randy Yates <ya...@ieee.org> wrote:
> Ken Asbury <avoidingspam2...@yahoo.com> writes: > > On Sep 17, 10:40&#2013266080;am, Randy Yates <ya...@ieee.org> wrote: > >> knight <krshe...@gmail.com> writes: > >> > Hi > > >> > how can i represent any number in 32 bit signed 1QN format.. > >> > Let it be -1.5 > > >> What is "1QN" format? > >> -- > >> % &#2013266080;Randy Yates &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;% "She has an IQ of 1001, she has a jumpsuit
> >> %% Fuquay-Varina, NC &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080;% &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;on, and she's also a telephone."
> >> %%% 919-577-9882 &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080;%
> >> %%%% <ya...@ieee.org> &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; % &#2013266080; &#2013266080; &#2013266080; &#2013266080;'Yours Truly, 2095', *Time*, ELO &#2013266080;http://www.digitalsignallabs.com
> > > Both, > > > Google is your friend. > > Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time > sifting through the results looking for the gold specks in a bunch of > dirt, and often they aren't there. > -- > % &#2013266080;Randy Yates &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;% "Remember the good old 1980's, when
> %% Fuquay-Varina, NC &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080;% &#2013266080;things were so uncomplicated?"
> %%% 919-577-9882 &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080;% 'Ticket To The Moon'
> %%%% <ya...@ieee.org> &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; % *Time*, Electric Light Orchestrahttp://www.digitalsignallabs.com- Hide quoted text -
> > - Show quoted text -
Randy, Geez, sorry to piss you off, man. To save your having to waste time sorting down to the 8th Google item, here's a link: http://newsgroups.derkeiler.com/Archive/Comp/comp.arch.fpga/2006-02/msg00938.html Knight, Until your time is as valuable as Randy's, Google is your friend. Regards, Ken
"Randy Yates" <yates@ieee.org> wrote in message 
news:m34p4e6c3v.fsf@local.localhost...
> > Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time > sifting through the results looking for the gold specks in a bunch of > dirt, and often they aren't there. > --
Randy, If you're having trouble finding things with search engines, you could try Googling for "How to google". In this industry, if you can't work a search engine, you're in big trouble. If you can't be arsed to do that, here's a link. ;-) http://sudarmuthu.com/blog/2006/05/07/google-search-syntax-dissected.html HTH., Syms. p.s. To the OP, I replied on C.A.F.
Ken Asbury wrote:
> On Sep 17, 11:11 am, Randy Yates <ya...@ieee.org> wrote: > >>Ken Asbury <avoidingspam2...@yahoo.com> writes: >> >>>On Sep 17, 10:40 am, Randy Yates <ya...@ieee.org> wrote: >>> >>>>knight <krshe...@gmail.com> writes: >>>> >>>>>Hi >> >>>>>how can i represent any number in 32 bit signed 1QN format.. >>>>>Let it be -1.5 >> >>>>What is "1QN" format? >>>>-- >>>>% Randy Yates % "She has an IQ of 1001, she has a jumpsuit >>>>%% Fuquay-Varina, NC % on, and she's also a telephone." >>>>%%% 919-577-9882 % >>>>%%%% <ya...@ieee.org> % 'Yours Truly, 2095', *Time*, ELO
http://www.digitalsignallabs.com
>> >>>Both, >> >>>Google is your friend. >> >>Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time >>sifting through the results looking for the gold specks in a bunch of >>dirt, and often they aren't there. >>-- >>% Randy Yates % "Remember the good old 1980's, when >>%% Fuquay-Varina, NC % things were so uncomplicated?" >>%%% 919-577-9882 % 'Ticket To The Moon' >>%%%% <ya...@ieee.org> % *Time*, Electric Light
Orchestrahttp://www.digitalsignallabs.com- Hide quoted text -
>> >>- Show quoted text - > > > Randy, > Geez, sorry to piss you off, man. > To save your having to waste time sorting down to the 8th Google item, > here's a link: > http://newsgroups.derkeiler.com/Archive/Comp/comp.arch.fpga/2006-02/msg00938.html > > > Knight, > Until your time is as valuable as Randy's, Google is your friend. > > Regards, > Ken
You're both right. Google *CAN* be useful. Google is often a *PAIN*!!!! And you can't be sure which it will be until _after_ the search. I've made a semi-hobby of outsmarting Google for the last 18 months. One thing I've learned is precede all search terms with "allintext:" . That limits hits to pages with search term in body of page. Otherwise some hits will be to pages which make a reference to pages which contain the search term. The art comes in choosing optimum boolean expression to get what you really want ;)
Ken Asbury <avoidingspam2001@yahoo.com> writes:

> On Sep 17, 11:11&#2013266080;am, Randy Yates <ya...@ieee.org> wrote: >> Ken Asbury <avoidingspam2...@yahoo.com> writes: >> > On Sep 17, 10:40&#2013266080;am, Randy Yates <ya...@ieee.org> wrote: >> >> knight <krshe...@gmail.com> writes: >> >> > Hi >> >> >> > how can i represent any number in 32 bit signed 1QN format.. >> >> > Let it be -1.5 >> >> >> What is "1QN" format? >> >> -- >> >> % &#2013266080;Randy Yates &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;% "She has an IQ of 1001, she has a jumpsuit
>> >> %% Fuquay-Varina, NC &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080;% &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;on, and she's also a telephone."
>> >> %%% 919-577-9882 &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080;%
>> >> %%%% <ya...@ieee.org> &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; % &#2013266080; &#2013266080; &#2013266080; &#2013266080;'Yours Truly, 2095', *Time*, ELO &#2013266080;http://www.digitalsignallabs.com
>> >> > Both, >> >> > Google is your friend. >> >> Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time >> sifting through the results looking for the gold specks in a bunch of >> dirt, and often they aren't there. >> -- >> % &#2013266080;Randy Yates &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080; &#2013266080;% "Remember the good old 1980's, when
>> %% Fuquay-Varina, NC &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080;% &#2013266080;things were so uncomplicated?"
>> %%% 919-577-9882 &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; &#2013266080; &#2013266080; &#2013266080;% 'Ticket To The Moon'
>> %%%% <ya...@ieee.org> &#2013266080; &#2013266080; &#2013266080; &#2013266080;
&#2013266080; % *Time*, Electric Light Orchestrahttp://www.digitalsignallabs.com- Hide quoted text -
>> >> - Show quoted text - > > Randy, > Geez, sorry to piss you off, man. > To save your having to waste time sorting down to the 8th Google item, > here's a link: > > http://newsgroups.derkeiler.com/Archive/Comp/comp.arch.fpga/2006-02/msg00938.html
Well, thanks Ken. I'm not pissed off, just expressing an opinion.
> Knight, Until your time is as valuable as Randy's, Google is your > friend.
Perhaps we should all think like you, Ken? -- % Randy Yates % "And all that I can do %% Fuquay-Varina, NC % is say I'm sorry, %%% 919-577-9882 % that's the way it goes..." %%%% <yates@ieee.org> % Getting To The Point', *Balance of Power*, ELO http://www.digitalsignallabs.com
Ken Asbury  <avoidingspam2001@yahoo.com> wrote:

>On Sep 17, 11:11&#2013266080;am, Randy Yates <ya...@ieee.org> wrote:
>> Ken Asbury <avoidingspam2...@yahoo.com> writes:
>>> Google is your friend.
>> Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time >> sifting through the results looking for the gold specks in a bunch of >> dirt, and often they aren't there.
>Geez, sorry to piss you off, man. >To save your having to waste time sorting down to the 8th Google item, >here's a link: >http://newsgroups.derkeiler.com/Archive/Comp/comp.arch.fpga/2006-02/msg00938.html
1QN seems to mean fractional two's complement in some proprietary context. The OP should use more standard terminology. Participants shouldn't have to google stuff like this up. Steve
On Sep 18, 1:00&#2013266080;am, spop...@speedymail.org (Steve Pope) wrote:
> Ken Asbury &#2013266080;<avoidingspam2...@yahoo.com> wrote: > > >On Sep 17, 11:11&#2013266080;am, Randy Yates <ya...@ieee.org> wrote: > >> Ken Asbury <avoidingspam2...@yahoo.com> writes: > >>> Google is your friend. > >> Bullshit. Half the time I google, I spend a SIGNIFICANT amount of time > >> sifting through the results looking for the gold specks in a bunch of > >> dirt, and often they aren't there. > >Geez, sorry to piss you off, man. > >To save your having to waste time sorting down to the 8th Google item, > >here's a link: > >http://newsgroups.derkeiler.com/Archive/Comp/comp.arch.fpga/2006-02/m... > > 1QN seems to mean fractional two's complement in some proprietary > context. > > The OP should use more standard terminology. &#2013266080;Participants shouldn't > have to google stuff like this up. > > Steve
I thought that was fairly standard terminology Q15 == no integer part and 15 bits of fraction Q31 == no integer part and 31 bits of fraction 1Q14 == 1 integer bit and 14 bits of fraction 1QN == 1 integer bit and all the remaining bits (however many they may be) are fraction All these kinda assume there is a sign bit as well. People don't often express unsigned fixed point in this way. I wonder what might be consider the appropriate shorthand way to say "no sign, no integer part and 16 bits of fraction"? Regards, Steve