breakpointdlg.cpp

Spim软件的一些源码。其中有Xspim的

/* SPIM S20 MIPS simulator.
   Definitions for the SPIM S20.

   Copyright (C) 1990-2004 by James Larus ([e-mail]).
   ALL RIGHTS RESERVED.
   Changes for DOS and Windows versions by David A. Carley ([e-mail])

   SPIM is distributed under the following conditions:

     You may make copies of SPIM for your own use and modify those copies.

     All copies of SPIM must retain my name and copyright notice.

     You may not sell SPIM or distributed SPIM in conjunction with a
     commerical product or service without the expressed written consent of
     James Larus.

   THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
   IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   PURPOSE. */

/* $Header: /Software/SPIM/SPIM/PCSpim/BreakpointDlg.cpp 1     1/02/05 8:03p Larus $ */

// BreakpointDlg.cpp : implementation file
//

#include "stdafx.h"
#include "PCSpim.h"
#include "BreakpointDlg.h"
#include "PCSpimView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CBreakpointDlg dialog


CBreakpointDlg::CBreakpointDlg(CWnd* pParent /*=NULL*/)
  : CDialog(CBreakpointDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBreakpointDlg)
	//}}AFX_DATA_INIT
}


void CBreakpointDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBreakpointDlg)
	DDX_Control(pDX, IDC_BREAKPOINTS, m_lbBreakpoints);
	DDX_Control(pDX, IDC_ADDRESS, m_edAddress);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CBreakpointDlg, CDialog)
	//{{AFX_MSG_MAP(CBreakpointDlg)
	ON_BN_CLICKED(IDC_ADD, OnAdd)
	ON_BN_CLICKED(IDC_REMOVE, OnRemove)
	ON_BN_CLICKED(IDCLOSE, OnClose)
	ON_LBN_SELCHANGE(IDC_BREAKPOINTS, OnSelchangeBreakpoints)
	ON_WM_SHOWWINDOW()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBreakpointDlg message handlers

void CBreakpointDlg::OnAdd()
{
  CString strAddress;
  m_edAddress.GetWindowText(strAddress);

  if (strAddress.IsEmpty())
    {
      MessageBox("Please enter an address or symbol.");
      m_edAddress.SetFocus();
      return;
    }

  int nAddr;
  if (isdigit(strAddress[0]))
    {
      nAddr = strtoul(strAddress, NULL, 0);
    }
  else
    {
      char *szAddress = strAddress.GetBuffer(0);
      nAddr = find_symbol_address(szAddress);
      strAddress.ReleaseBuffer();
    }

  strAddress.Format("0x%08x", nAddr);
  if (m_lbBreakpoints.FindString(-1, strAddress) != LB_ERR)
    {
      MessageBox("There is already a breakpoint at that location!");
      return;
    }

  // Turn on message capture, and attempt to add the breakpoint.
  g_pView->SetMessageCapture(TRUE);
  add_breakpoint(nAddr);
  CString strResult = g_pView->GetMessageCaptureBuf();
  g_pView->SetMessageCapture(FALSE);

  if (strResult.IsEmpty())	// No Error
    {
      strAddress.Format("0x%08x", nAddr);
      m_lbBreakpoints.AddString(strAddress);

      m_edAddress.SetWindowText("");
    }
  else
    {
      MessageBox(strResult);
    }

  g_pView->UpdateStatusDisplay();
}


void CBreakpointDlg::OnRemove()
{
  int nCurSel = m_lbBreakpoints.GetCurSel();

  // Make sure an item is selected.
  if (nCurSel == LB_ERR)
    {
      MessageBox("Please select a breakpoint to delete.");
      return;
    }

  // Remove this item from the listbox.
  CString strAddress;
  m_lbBreakpoints.GetText(nCurSel, strAddress);
  m_lbBreakpoints.DeleteString(nCurSel);

  int nAddr;
  sscanf(strAddress, "%x", &nAddr);

  // Capture messages -- we set the breakpoint, it _should_ work... 8)
  g_pView->SetMessageCapture(TRUE);
  delete_breakpoint(nAddr);
  CString strResult = g_pView->GetMessageCaptureBuf();
  g_pView->SetMessageCapture(FALSE);

  // We shouldn't have any error messages.
  ASSERT(strResult.IsEmpty());

  // Disable the Remove button.
  GetDlgItem(IDC_REMOVE)->EnableWindow(FALSE);

  g_pView->UpdateStatusDisplay();
}


void CBreakpointDlg::OnClose()
{
  ShowWindow(SW_HIDE);
}


BOOL CBreakpointDlg::Create(CWnd *pParentWnd)
{
  return CDialog::Create(IDD, pParentWnd);
}


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

  LoadBreakpoints();

  return TRUE;  // return TRUE unless you set the focus to a control
  // EXCEPTION: OCX Property Pages should return FALSE
}


void CBreakpointDlg::OnSelchangeBreakpoints()
{
  GetDlgItem(IDC_REMOVE)->EnableWindow();
}


void CBreakpointDlg::LoadBreakpoints()
{
  m_lbBreakpoints.ResetContent();

  // Turn on message capture, have the simulator print
  // the list of breakpoints, turn off message capture
  g_pView->SetMessageCapture(TRUE);
  list_breakpoints();
  CString strBkpts = g_pView->GetMessageCaptureBuf();
  g_pView->SetMessageCapture(FALSE);

  // Now, process the dumped breakpoing list.
  char *szBkptTag = "Breakpoint at ";
  int nPos;
  while (1)
    {
      if (-1 == (nPos = strBkpts.Find(szBkptTag)))
	break;

      // Snip off the front.
      strBkpts = strBkpts.Mid(nPos + lstrlen(szBkptTag));

      // Extract the address
      m_lbBreakpoints.AddString(strBkpts.Left(10));
    }

  // Disable the Remove button
  GetDlgItem(IDC_REMOVE)->EnableWindow(FALSE);
}


void CBreakpointDlg::OnShowWindow(BOOL bShow, UINT nStatus)
{
  CDialog::OnShowWindow(bShow, nStatus);

  if (bShow)
    {
      LoadBreakpoints();
    }
}