Skybuck presents ShiftLeft( Left, Right, Shift ) and ShiftRight( Right, Left, Shift )
Hello,
I think these two functions will come in very handy to solving the "write
longword bits" problem.
ShiftLeft( Left, Right, Shift )
ShiftRight( Right, Left, Shift )
Shifting with extra inputs is what is required to solve it nicely.
// Begin of Code ***
program Project1;
{$APPTYPE CONSOLE}
{
Skybuck presents ShiftLeft( Left, Right, Shift ) and ShiftRight( Right,
Left, Shift )
version 0.01 created on 5 may 2008 by Skybuck Flying.
Be carefull though, the shift parameter must be 0 to 31.
}
uses
SysUtils;
// make overloaded versions for easy coding
// display in big endian.
procedure WriteBitPattern( const ParaByte : byte ); overload;
type
TbitRange = 0..7;
TbitSet = set of TbitRange;
var
vBit : TbitRange;
begin
for vBit:= 0 to 7 do
begin
if vBit in TbitSet(ParaByte) then
begin
write('1');
end else
begin
write('0');
end;
end;
end;
procedure WriteBitPattern( const ParaWord : word ); overload;
type
TbitRange = 0..15;
TbitSet = set of TbitRange;
var
vBit : TbitRange;
begin
for vBit:= 0 to 15 do
begin
if vBit in TbitSet(ParaWord) then
begin
write('1');
end else
begin
write('0');
end;
end;
end;
procedure WriteBitPattern( const ParaLongWord : longword ); overload;
type
TbitRange = 0..31;
TbitSet = set of TbitRange;
var
vBit : TbitRange;
begin
for vBit:= 0 to 31 do
begin
if vBit in TbitSet(ParaLongWord) then
begin
write('1');
end else
begin
write('0');
end;
end;
end;
function ShiftLeft( Left : longword; Right : Longword; Shift : longword ) :
longword;
asm
shld eax, edx, cl
end;
function ShiftRight( Right : longword; Left : longword; Shift : longword ) :
longword;
asm
shrd eax, edx, cl
end;
procedure Main;
var
vLeft : longword;
vRight : longword;
vShift : longword;
vResult : longword;
begin
writeln('program started');
for vShift := 0 to 31 do
begin
vLeft := 0;
vRight := 1 + 0 + 8 + 0 + 32 + 2147483648;
vResult := ShiftLeft( vLeft, vRight, vShift );
Writeln( 'ShiftLeft vLeft: ', vLeft, ' vRight: ', vRight, ' vResult: ',
vResult );
WriteBitPattern( vLeft ); write( ' ' );
WriteBitPattern( vRight ); write( ' ' );
WriteBitPattern( vResult ); writeln;
Writeln;
end;
for vShift := 0 to 31 do
begin
vLeft := 1 + 0 + 8 + 0 + 32 + 2147483648;
vRight := 0;
vResult := ShiftRight( vRight, vLeft, vShift );
Writeln( 'ShiftRight vRight: ', vRight, ' vLeft: ', vLeft, ' vResult: ',
vResult );
WriteBitPattern( vRight ); write( ' ' );
WriteBitPattern( vLeft ); write( ' ' );
WriteBitPattern( vResult ); writeln;
Writeln;
end;
writeln('program finished');
end;
begin
try
Main;
except
on E:Exception do
Writeln(E.Classname, ': ', E.Message);
end;
readln;
end.
// *** End of Code ***
Bye,
Skybuck.
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In order to do a full outer join in MySQL one must use a union. Is there any good reason to do SELECT ... LEFT JOIN UNION SELECT ... RIGHT JOIN rather than SELECT ... LEFT JOIN UNION SELECT ... LEFT JOIN with the tables swapped on the latter LEFT JOIN? Paul Lautman wrote: > In order to do a full outer join in MySQL one must use a union. > Is there any good reason to do > > SELECT ... > LEFT JOIN > > UNION > > SELECT ... > RIGHT JOIN > > rather than > > SELECT ... > LEFT JOIN > > UNION > > SELECT ... > LEFT JOIN > ...
Changing x-axis plot from right to left to left to right
Hi, For mathematical reasons, I need to change the way that gnuplots my data along the X axis from right to left to left to right (that is, at the minute it plots from 20 down to 1, not from 1 to 20) I am aware of set xrange reverse but this just inverts the whole graph and displays from 17 .... 1 down along the x-axis rather than plotting the other way round. I'm rather stuck and would appreciate some advice. Regards Jamie On 14.08.2012 17:52, Jamie Rees wrote: > For mathematical reasons, I need to change the way that gnuplots my > data along the X axis from right to left to left to right (that is, > at the minute it plots from 20 down to 1, not from 1 to 20) That makes no sense whatsoever. gnuplot generates some kind of picture. It makes absolutely no difference whatsoever whether a line was drawn from left to right or right to left --- it'll be the same line in the end, consisisting of exactly the same pixels being coloured. So since this doesn't make sense, maybe you should tell us what your actual problem is, so we can find out how that might be solved. On Tuesday, August 14, 2012 6:12:33 PM UTC+1, Hans-Bernhard Br=F6ker wrote: > On 14.08.2012 17:52, Jamie Rees wrote: >=20 >=20 >=20 > > For mathematical reasons, I need to change the way that gnuplots my >=20 > > data along the X axis from right to left to left to right (that is, >=20 > > at the minute it plots from...
How to shift Left or Right in SSE2
How do I do a bitwise shift left or right in SSE2? I would like that each of the 4 Word is shifted left (or right) by a number of n bits. I could only find _mm_srai_epi32 (only right!), which howevere does not do what I want, as it brings in introduce the sign bit. Thanks, Fabio spamtrap@crayne.org writes: > How do I do a bitwise shift left or right in SSE2? > > I would like that each of the 4 Word is shifted left (or right) by a > number of n bits. > > I could only find _mm_srai_epi32 (only right!), which howevere does > not do what I want, as it brings in int...
SPARK left/right shift.
Hi. What's the "correct" way to get access to left/right shift operations for modular types in SPARK? I see from the Checker manual that the proof language is capable of modelling them but then I also see that the Interfaces package isn't predefined. On Jul 21, 10:07=A0am, xorque <xorquew...@googlemail.com> wrote: > Hi. > > What's the "correct" way to get access to left/right shift operations > for modular types in SPARK? The standard shift/rotate functions in Interfaces are overloaded, so not legal SPARK. The way round this is to declare a...
Text widget with mixed left-to-right and right-to-left Unicode text abilities?
Hi, is there one of these? If not I might have a go at writing a simple one of them.... Apologies if this is a FAQ, I did search the archive a bit before posting. Best, Charles. ...
Changing M-<right,left> to C-<right,left>
Hello, I tried to change the word moving behaviour as shown in the post title and could not. Part of my .emacs is below. (global-set-key (kbd "C-z") 'undo) (global-set-key (kbd "C-<right>") 'forward-word) (global-set-key (kbd "C-<left>") 'backward-word) Finally, how could I open a new buffer proportionally in the same window? For instance, if I open a new buffer with C-x 2 and then open the new buffer the window is split in two equal halves. I'd prefer to have it 70%, 30%. TIA, Andre Luiz AndreLTR <andreltramos@gmail.com> writes: > Hello, > > I tried to change the word moving behaviour as shown in the post title > and could not. Part of my .emacs is below. > > (global-set-key (kbd "C-z") 'undo) > (global-set-key (kbd "C-<right>") 'forward-word) > (global-set-key (kbd "C-<left>") 'backward-word) Works for me. Seems the code is not evaluated at all for you, dunno why, presumably something is wrong with your init file. > Finally, how could I open a new buffer proportionally in the same > window? For instance, if I open a new buffer with C-x 2 and then open > the new buffer the window is split in two equal halves. I'd prefer to > have it 70%, 30%. You can use the prefix arg of `split-window-below' to specify window heights in lines, see the doc string. Is that acceptable? ...
FC: control/shift+left/right/up/down not working
Well, in my xterm's I cannot use shift+left, shift+right and so on. If I do, I get: shift+left: 2D shift+right: 2C shift+up: 2A shift+down: 2B control+left: 5D control+right: 5C control+up: 5A control+down: 5B Pressing c-v before pressing the above key combination gives: control-v shift+left: ^[[1;2D and similar for the rest. I don't know how to fix the above problem so that e.g. control+left does what it used to (skip one word to the left). Before upgrading to FC (from RH8) the whole thing worked fine. Any suggestion will be appreciated. :-) Bernhard (this was posted in linux.redhat, not crossposted, sorry) >>>>> "Bernhard" == Bernhard Mogens Ege <bme@hst.auc.dk> writes: > Well, in my xterm's I cannot use shift+left, shift+right and so on. If > I do, I get: > shift+left: 2D > shift+right: 2C > shift+up: 2A > shift+down: 2B > control+left: 5D > control+right: 5C > control+up: 5A > control+down: 5B Well, it figures. Just after posting my problem I managed to solve it. /etc/inputrc is at fault as it does not contain the following lines: "\e[1;5C": forward-word "\e[1;5D": backward-word These enable control+left/right to skip words using bash (readline). This bugreport helped me: :-) http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=80860 Bernhard ...
Precision of C++ left/right shift operator..
I am using this type of code to do right-shifting, B = 3; data1 = (data + (1 << (B-1))) >> B; data1 seems incorrect when data = -4-8*i.. which means it rounds -1.5 to -1 instead of -2. On the positive side, 1.5 is rounded to 2, which ic correct. For left-shift, it's simply as follows, no pitfalls, am I right? data1 = data << B; Thanks. G Iveco wrote: > I am using this type of code to do right-shifting, > > B = 3; > data1 = (data + (1 << (B-1))) >> B; > > data1 seems incorrect when data = -4-8*i.. which means it > rounds -1.5 to...
left and right shift operations for custom menus
Hi everyone I want to create a custom menu on my HP50g. Reading the electronic user's guide I see that to create a (permanent) custom menu that assigns the functions EXP, LN, GAMMA and ! to the keys F1, F2, F3 and F4 respectively, one enters: {EXP LN GAMMA !} ENTER MENU However a little later in the guide it states that the general form of the list above is: {=93label1=94, function1, ls1, rs1}, {=93label2=94, function2, ls2, rs2},= =85} where "label1" is the name of the soft menu key, funtion1 is the function that will be carried out when the key is pressed and ls1 and rs1 ...
right/left shift + click, mouse wheel scroll
Hello, I am new to this group - have searched ubuntuforums and winehq but haven't found too much related with my problem. Not quite sure this is wine related or xorg.conf related, please let me know if a known issue. The issue is appearing for any recent versions of wine up to current 0.9.45 (have tried on last 5-6 versions), on ubuntu 6.06 and 7.04. My windows app is developed in Borland Delphi and works almost 100% well under wine. The one problem I noticed so far is that is not responding when Shift+clicking on buttons, as expected (under MS Windoes, this opens specific repor...
Problem with cin, cout using shift left and right?
I want to know what problem with cin, cout, overlow operator using shift left and right? Xoomer wrote: > I want to know what problem with cin, cout, overlow operator using > shift left and right? > You've mutli-posted again, please don't. -- Ian Collins. ...
how to locate right slot in a range with right-shifting and offset?
Hi all, Assume I non-uniformally break down a range from 0 to (2^10)-1 into (2^4)-1 blocks. |----|---|------|---|......|--| 0 5 7 (2^10)-1 For a given value x (x may be from 0 to 2^10-1), I would like to locate what block x should be in. For example if x is 6, I want to find the second block (from 5 to 7) in the above figure. ( x is integers). In a technical report, for this task, I see they use the operator: block_address=x >> shift_amount + offset_amount. (>> is right shift). where shift_amount and offset_amount are the same for all values of x. (all ...
Right or Left ?
A simple multimedia setup can be a display monitor with speakers positioned on both sides. Think of this equipment as being on a 'stage' in a theater, and the user as being the 'audience' in that theater. What is called the "left" speaker -- is it the one on the left of the audience (as viewed by the audience), or the one on the left of the stage (as viewed by an actor standing ON the stage, facing out towards the audience) ? mikus Sir: Mikus Grinbergs wrote: > A simple multimedia setup can be a display monitor with > speakers positioned on...
left shift
hii am relatively new to python..was checking out some bit shifting..when i do255<< 24 i get 4278190080whereas in java or c it gives -16777216can someone tell me why this is ?,what should i do if i want theoutput as -16777216 ?dnp:sI wrote a fn to show the binary digits in the number and it gives sameoutput for both numbers(4278190080 and -16777216)def pBinInt(str,i): print str,",int",i,", binary:" print " ", for j in range(31,-1,-1): if(((1 << j) & i) != 0): print 1, else: print 0, print "&...
Left shift
Hi, how is this code working? As per me since aNum is int8 so left shifting aNum by 8 would make it zero, how is it maintaining this? if i left shift it by 32 it becomes zero? unsigned __int8 aNum = 5; printf("%d",aNum << 16); Thanks Keshav -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Keshav wrote: > Hi, > how is this code working? As per me since aNum is int8 so left > shifting aNum by 8 would make it zero, how is it maintaining this? > if i left shift i...
left, right?
What function returns some number of characters on the right or left of a string? i.e. if I have the string 'filename', is there a command like Left('filename',4) = file? Thanks. asdd12 wrote: > > > What function returns some number of characters on the right or > left > of a string? i.e. if I have the string 'filename', is there a > command > like Left('filename',4) = file? Thanks. >> f='filename' f = filename >> f(1:4) ans = file In article <ef4d6a8.-1@webcrossing.raydaftYaTP>, nospam@nospam.com says... &...