// alcmemDlg.cpp : implementation file
//

#include "stdafx.h"
#include "alcmem.h"
#include "alcmemDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CAlcmemDlg dialog

CAlcmemDlg::CAlcmemDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAlcmemDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAlcmemDlg)
	m_size = 0;
	m_ta = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_p=NULL;
}

void CAlcmemDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAlcmemDlg)
	DDX_Text(pDX, IDC_EDIT1, m_size);
	DDV_MinMaxUInt(pDX, m_size, 0, 4096);
	DDX_Text(pDX, IDC_TA, m_ta);
	DDX_Control(pDX, IDC_PR, m_pr);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAlcmemDlg, CDialog)
	//{{AFX_MSG_MAP(CAlcmemDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	ON_BN_CLICKED(IDC_BUTTON4, OnButton4)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAlcmemDlg message handlers

BOOL CAlcmemDlg::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
	
	//***************************************************************
	{
		m_ta="內(nèi)存未分配!";
		this->UpdateData(FALSE);
//		m_pr.SetEnabled(FALSE);
	}
	//***************************************************************

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CAlcmemDlg::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 CAlcmemDlg::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 CAlcmemDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CAlcmemDlg::OnButton1() 
{
	this->UpdateData(TRUE);

	CString str;
	str.Format("%d",m_size);

	if(NULL!=m_p){
		AfxMessageBox("內(nèi)存已分配，點(diǎn)擊釋放或?qū)懭?");
		return;
	}
	m_p=VirtualAlloc(
			NULL, // address of region to reserve or commit
			m_size*1024*1024,
			MEM_COMMIT|MEM_RESERVE, // type of allocation
			PAGE_READWRITE   // type of access protection
			);
	if(NULL!=m_p)
		m_ta=str+"M內(nèi)存申請成功!";

	this->UpdateData(FALSE);
}

void CAlcmemDlg::OnButton2() 
{
	VirtualFree(m_p,0,MEM_RELEASE);
	m_p=NULL;
	m_ta="內(nèi)存未分配!";
	this->UpdateData(FALSE);
}

void CAlcmemDlg::OnButton3() 
{	
	DWORD d=(m_size*1024*1024)/sizeof(DWORD);
	DWORD*p=(DWORD*)m_p;
	DWORD s;

	m_pr.SetMin(0);
	m_pr.SetMax((float)d);
	m_pr.SetEnabled(TRUE);

	if(NULL!=m_p){
		__asm{
				mov ecx,d
				mov eax,0
L:				mov edx,DWORD ptr p
				mov [edx+eax],1
				inc eax
				mov s,eax
				pushad
		}
		m_pr.SetValue((float)s);
		__asm{
				popad
				loop L
		}
	}
}

void CAlcmemDlg::OnButton4() 
{
	float f_t=.132;
	float f_s=0;
	__asm{
		fld f_s
		fld f_s
		fld f_s

		fld f_t
		fadd f_t
		fst f_t

//		fadd fs
	}
}