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Purpose of ESI & EDI registers?
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In addition to the string operations (MOVS/INS/STOS/CMPS/SCASB/W/D/Q etc.) mentioned in the other answers, I wanted to add that there are also more "modern" x86 assembly instructions that implicitly use at least EDI/RDI:
The SSE2 MASKMOVDQU (and the upcoming AVX VMASKMOVDQU) instruction sele...
B-Tree vs Hash Table
...lso tree algorithms are usually easier to maintain, grow with data, scale, etc.
Hash indexes work with pre-defined hash sizes, so you end up with some "buckets" where the objects are stored in. These objects are looped over again to really find the right one inside this partition.
So if you have sma...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
...ave suggested very good solutions but you have to do it manually vi editor etc. Instead you can run this command via your Mac Terminal and you will be good to go :
find /Applications/IntelliJ*/*Contents/*Info.plist -exec sed -i -e 's/string>1.6/string>1.7/' {} \;
Few optional tips:
If ...
How to convert a data frame column to numeric type?
...ry(lubridate)
# Recreate data that needs converted to numeric, date-time, etc
data_df
#> # A tibble: 5 × 9
#> TIMESTAMP SYMBOL EX PRICE SIZE COND BID BIDSIZ OFR
#> <chr> <chr> <chr> <chr> <chr> <chr> <chr>...
Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
... ever copy that script to a platform with a Unix base, such as Linux, Mac, etc).
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...ill search for a fonction to handle ++t ; or t++ ; code:
class T
{
// etc.
} ;
T & operator++(T & p_oRight) // ++A
{
// Do increment of p_oRight value
return p_oRight ;
}
T operator++(T & p_oRight, int) // A++
{
T oCopy ;
// Copy p_oRight into oCopy
// Do increment...
Rails: confused about syntax for passing locals to partials
...ike you said. You can also do in-code search and it has built in terminal, etc. Caution - its a pretty big file
– sethvargo
Dec 9 '10 at 20:22
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opengl: glFlush() vs. glFinish()
...appropriate non-OpenGL APIs (e.g. reads from the framebuffer, screenshots, etc...). Whether that is really what happens is driver-dependent. The specification allows a ton of latitude as to what is legal.
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...general) across a vast array of environments, compilers, threading models, etc. When its my choice, I choose boost.
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Insert a commit before the root commit in Git?
...ids touching the working copy or the index or which branch is checked out, etc.
Create a tree object for an empty directory:
tree=`git hash-object -wt tree --stdin < /dev/null`
Wrap a commit around it:
commit=`git commit-tree -m 'root commit' $tree`
Create a reference to it:
git branch new...