106 lines
4.9 KiB
C++
106 lines
4.9 KiB
C++
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//{**************************************************************************************************}
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//{ }
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//{ Project JEDI Code Library (JCL) }
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//{ }
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//{ The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); }
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//{ you may not use this file except in compliance with the License. You may obtain a copy of the }
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//{ License at http://www.mozilla.org/MPL/ }
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//{ }
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//{ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF }
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//{ ANY KIND, either express or implied. See the License for the specific language governing rights }
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//{ and limitations under the License. }
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//{ }
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//{ The Original Code is: JvSIMDTest.dpr, released on 2004-10-11. }
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//{ }
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//{ The Initial Developer of the Original Code is Florent Ouchet }
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//{ [ouchet dott florent att laposte dott net] }
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//{ All Rights Free. }
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//{ }
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//{ You may retrieve the latest version of this file at the Project JEDI's JCL home page, }
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//{ located at http://jcl.sourceforge.net }
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//{ }
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//{**************************************************************************************************}
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//{ }
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//{ Last modified: $Date:: 2007-09-17 23:41:02 +0200 (lun., 17 sept. 2007) $ }
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//{ Revision: $Rev:: 2175 $ }
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//{ Author: $Author:: outchy $ }
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//{ }
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//{**************************************************************************************************}
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#pragma hdrstop
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#include <iostream>
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#include <iomanip>
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//---------------------------------------------------------------------------
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#if __BORLANDC__ == 1380
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#define BCB6
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#endif
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#if __BORLANDC__ == 1360
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#define BCB5
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#endif
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#ifdef BCB5
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#define COMPILER5_UP
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#define COMPILER5
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#endif
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#ifdef BCB6
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#define COMPILER6_UP
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#define COMPILER5_UP
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#define COMPILER6
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#endif
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#pragma argsused
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int main (int argc, char **argv)
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{
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using namespace std;
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float Values[4];
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int Index, ErrorCode;
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char Line[256];
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printf("Streaming SIMD Extensions of Intel Pentium and AMD Athlon processors\n");
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printf("By Ouchet Florent <outchy_at_users.sourceforge.net>\n");
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printf("Released 2004,14,3\n");
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printf("All rights free\n\n");
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for (Index=0; Index<4; Index++) {
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do {
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printf("Enter the floating point value %d : ",Index);
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gets(Line);
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ErrorCode = sscanf(Line,"%f",Values+Index);
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} while (ErrorCode!=1);
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}
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printf("\nCheck values :\n");
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for (Index=0; Index<4; Index++)
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printf("Value %d is : %f\n",Index,Values[Index]);
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printf("\nStarting computations : Values*2 ...");
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__asm {
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// breakpoint here
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// hit ctrl+alt+D or go to View/Debug window and open the last item
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// these instructions operate on 4-packed-single-precision floating point values
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// so you should view these registers has single values
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LEA EAX, Values
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#ifdef COMPILER6_UP
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movups xmm0, [eax] // moving Values to xmm0
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addps xmm0, xmm0 // xmm0 <- xmm0 + xmm0
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movups [eax], xmm0 // moving xmm0 to Values
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#else
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DB 0Fh, 10h, 00h // movups xmm0, [eax]
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DB 0Fh, 58h, 0C0h // addps xmm0, xmm0
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DB 0Fh, 11h, 00h // movups [eax], xmm0
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#endif
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};
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printf("Computations ended\nNow values are :\n");
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for (Index=0; Index<4; Index++)
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printf("Value %d is : %f\n",Index,Values[Index]);
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printf("\nProgram terminated\n");
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gets(Line);
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return 0;
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}
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//---------------------------------------------------------------------------
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