//**********************************************************************//                                                                      // Filename: mmutest.c//                                                                      // Description: C program to test the MMU.//// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A// PARTICULAR PURPOSE.// Copyright(c) Cirrus Logic Corporation 2001, All Rights Reserved                       //                                                                      //**********************************************************************#include <stdio.h>#include "vs_types.h"#include "driver_api.h"#include "regs_gpio.h"#include "syscon.h"extern void MMUSetup(void);extern void GetDirty(void);extern void FlushDCache(void);int main(){    cSyscon SysCon;        SysconInit(&SysCon);        //    // Set the bus up at 200/100/50    //    SysCon.SetBusClocks(CLK_400, FCLK_DIV_2, HCLK_DIV_4, PCLK_DIV_2);        MMUSetup();        gpio->PEDR.Value &= ~0x3;    gpio->PEDR.Value |= 1;          while(1)    {        FlushDCache();        gpio->PEDR.Value = (gpio->PEDR.Value ^ 0x3);        GetDirty();    }        }