www.gusucode.com > MMX指令集在VC++中使用的示例程序-源码程序 > MMX指令集在VC++中使用的示例程序-源码程序\code\mmxtestDlg.cpp

    // mmxtestDlg.cpp : implementation file
// Download by http://NewXing.com

#include "stdafx.h"
#include "mmxtest.h"
#include "mmxtestDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMmxtestDlg dialog

CMmxtestDlg::CMmxtestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMmxtestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMmxtestDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMmxtestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMmxtestDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMmxtestDlg, CDialog)
	//{{AFX_MSG_MAP(CMmxtestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMmxtestDlg message handlers

BOOL CMmxtestDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMmxtestDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMmxtestDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMmxtestDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMmxtestDlg::OnButton1() 
{
	__int8	i8_a[2][16];		//字节操作数，两组，每组16个
	__int16 i16_a[8];			//字操作数
	__int32 i32_a[4];
	__int64 i64_a[2];

	i64_a[0]=0;
	i64_a[1]=0;

	i32_a[0]=1000;
	i32_a[1]=1000;
	i32_a[2]=3;
	i32_a[3]=4;

	i16_a[0]=10;
	i16_a[1]=20;
	i16_a[2]=30;
	i16_a[3]=40;
	i16_a[4]=50;
	i16_a[5]=60;
	i16_a[6]=70;
	i16_a[7]=80;
	
	i8_a[0][0]=1;
	i8_a[0][1]=1;
	i8_a[0][2]=1;
	i8_a[0][3]=1;
	i8_a[0][4]=1;
	i8_a[0][5]=1;
	i8_a[0][6]=1;
	i8_a[0][7]=1;
	i8_a[0][8]=1;
	i8_a[0][9]=1;
	i8_a[0][10]=1;
	i8_a[0][11]=1;
	i8_a[0][12]=1;
	i8_a[0][13]=1;
	i8_a[0][14]=1;
	i8_a[0][15]=1;

	i8_a[1][0]=2;
	i8_a[1][1]=2;
	i8_a[1][2]=2;
	i8_a[1][3]=2;
	i8_a[1][4]=2;
	i8_a[1][5]=2;
	i8_a[1][6]=2;
	i8_a[1][7]=2;
	i8_a[1][8]=2;
	i8_a[1][9]=2;
	i8_a[1][10]=2;
	i8_a[1][11]=2;
	i8_a[1][12]=2;
	i8_a[1][13]=2;
	i8_a[1][14]=2;
	i8_a[1][15]=2;

	__asm{
		movq mm1,[i64_a]
		movq mm2,[i64_a]
		
		movq mm2, [i32_a+8]
		psubd mm2, [i32_a]
		movq [i32_a],mm2
		
		movq mm1,[i16_a]
		paddsw mm1,[i16_a+8]
		movq [i16_a],mm1

		movq mm1,[i8_a]
		movq mm2,[i8_a+8]
		paddb mm1,[i8_a+16]
		paddb mm2,[i8_a+24]
		movq [i8_a],mm1
		movq [i8_a+8],mm2
		
		emms			//最后清除MMX状态寄存器，正确返回给系统
	}
}