In case you haven t realized it, building computer systems is hard. As the complexity of the system gets greater, the task of building the software gets exponentially harder. As in any profession, we can progress only by learning, both from our mistakes and from our successes. This book represents some of this learning written in a Form that I hope will help you to learn these lessons quicker than I did, or to communicate to others more effectively than I did before I boiled these patterns down.
VHDL 關于2DFFT設計程序
u scinode1 ∼ scinode9.vhd: Every SCI node RTL vhdl code. The details can be
seen in the following section.
u 2dfft.vhd: The top module includes these scinodes and Form a 3x3 SCI Torus
network, and it support these sub-modules scinode1∼ scinode9 reset and clk
and global_cnt signals to synchronous the sub-modules to simplify the overall
design.
u proj2.wfc: VSS simulation result that is the same as the ModelSim simulation
result.
u Pro2_2.wfc: VSS simulation result of another test pattern can’t cause overflow
situation.
Unzip this file into a writeable directory.
You should end up with a "Geocode" project, as well as Bitmaps and TestData directories.
This sample geocodes single-match zip codes, entered by the user, or a batch-match of a table of zips (and other info) against a point shapefile.
The point data shapefile consists of 41859 point features from 1996 GDT data, in decimal degrees. The table of zips that can be used in the batch match consists of 38 records, entitled "few_zips.dbf".
More specifcs are found at the top of each Form and are provided throughout the code.
The Audio File Library provides a uniForm programming interface to
standard digital audio file Formats.
This library allows the processing of audio data to and from audio
files of many common Formats (currently AIFF, AIFF-C, WAVE, NeXT/Sun
.snd/.au, IRCAM, AVR, Amiga IFF/8SVX, and NIST SPHERE). The library
also supports compression (currently G.711 mu-law and A-law and IMA and
MS ADPCM) as well as PCM Formats of all flavors (signed and unsigned
integer, single- and double-precision floating point).
The government of a small but important country has decided that the alphabet needs to be streamlined and reordered. Uppercase letters will be eliminated. They will issue a royal decree in the Form of a String of B and A characters. The first character in the decree specifies whether a must come ( B )Before b in the new alphabet or ( A )After b . The second character determines the relative placement of b and c , etc. So, for example, "BAA" means that a must come Before b , b must come After c , and c must come After d .
Any letters beyond these requirements are to be excluded, so if the decree specifies k comparisons then the new alphabet will contain the first k+1 lowercase letters of the current alphabet.
Create a class Alphabet that contains the method choices that takes the decree as input and returns the number of possible new alphabets that conForm to the decree. If more than 1,000,000,000 are possible, return -1.
Definition
％ [BestPop,Trace]=fmaxga(FUN,LB,UB,eranum,popsize,pcross,pmutation)
％ Finds a maximum of a function of several variables.
％ fmaxga solves problems of the Form:
％ max F(X) subject to: LB <= X <= UB
％ BestPop--------最優的群體即為最優的染色體群
％ Trace----------最佳染色體所對應的目標函數值
％ FUN------------目標函數
％ LB-------------自變量下限
％ UB-------------自變量上限
％ eranum---------種群的代數,取100--1000(默認1000)
％ popsize--------每一代種群的規模；此可取50--100(默認50)
％ pcross---------交叉的概率,此概率一般取0.5--0.85之間較好(默認0.8)
％ pmutation------變異的概率,該概率一般取0.05-0.2左右較好(默認0.1)
％ options--------1×2矩陣,options(1)=0二進制編碼(默認0),option(1)~=0十進制編碼,option(2)設定求解精度(默認1e-4)
