Computer Architecture
in [Hardware]
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Wanna do a WriteLongwordBits contest ? (Skybuck's Second Entry) Hello, Here is my second entry for the contest. I was hoping that by using assembler instructions, the instruction count could be reduced. But the opposite has happened. This version is even worse: 105 instructions ! And it's using slower instructions too, like shld and a branch ! However the kee... 6 May 2008 22:20
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; {$APPTYPE CONSOLE} {... 6 May 2008 22:20
Wanna do a WriteLongwordBits contest ? (Skybuck's Fourth Entry: Lightning Fast A1B1) Ok, I wasn't statisfied with all the slow routines. I probably need something faster. Maybe if I clear the buffer up front and then simply place everything sequentially it will go faster and fast enough for my purposes. Actually this is all I really need at the moment. But if I do need something special... 6 May 2008 22:20
Skybuck presents KeepLowBits and KeepHighBits Hello, Skybuck presents: KeepLowBits and KeepHighBits functions. Visual inspection/verification program included ! ;) // *** Begin of Code *** program Project1; {$APPTYPE CONSOLE} { Skybuck presents KeepLowBits and KeepHighBits Version 0.01 created on 5 may 2008 by Skybuck Flying Correct i... 6 May 2008 22:20
Skybuck presents RotateLeft and RotateRight routines. Hello, "If Skybuck can do it then so can you !" I wonder why high level languages like Delphi and FreePascal do not have ror and rol support ? Which processors targetted by FreePascal do not have ror and rol support me wonders ? I suspect I need these routines to be able to easily, flawlessly, and bra... 6 May 2008 22:20
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OS - Processor interaction (1) If an OS detects two physical CPUs , how does it react? (2) When we compile a program and get an executable, is it going to directly issue assembly code to the processor as the Os allows it to, or is it giving some commands to the OS? sorry for my very basic questions, I am not much experienced.............. 6 May 2008 22:20
Skybuck presents FastGetBit ( Value, BitPosition ) (latency3) Skybuck Flying wrote: "Wojciech Mula" <wojciech_mula(a)poczta.null.onet.pl.invalid> wrote in message news:20080504190913.938d1fff.wojciech_mula(a)poczta.null.onet.pl.invalid... "Skybuck Flying" <BloodyShame(a)hotmail.com> wrote: function FastGetBit( Value : longword; BitPosition : longword ) : boole... 6 May 2008 22:20 |