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This commit is contained in:
kudzu_cp 2009-10-12 11:38:19 +00:00
parent 956ddbada8
commit 1cd1a251b3
2 changed files with 178 additions and 201 deletions
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83
source/Cosmos/Cosmos.Hardware/TextScreen.cs
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@ -2,40 +2,32 @@
using System.Collections.Generic; using System.Collections.Generic;
using System.Text; using System.Text;
namespace Cosmos.Hardware namespace Cosmos.Hardware {
{ public class TextScreen {
public class TextScreen
{
protected const int VideoAddr = 0xB8000; protected const int VideoAddr = 0xB8000;
protected const byte DefaultColor = 15; //White protected const byte DefaultColor = 15; //White
protected static bool mInitialized = false; protected static bool mInitialized = false;
protected static byte Color; protected static byte Color;
protected static void CheckInit() protected static void CheckInit() {
{ if (!mInitialized) {
if (!mInitialized)
{
Color = DefaultColor; Color = DefaultColor;
mInitialized = true; mInitialized = true;
} }
} }
public static int Rows public static int Rows {
{
// for now 24 lines, as it's one line for the Heap Debug Display // for now 24 lines, as it's one line for the Heap Debug Display
get { return 24; } get { return 24; }
} }
public static int Columns public static int Columns {
{
get { return 80; } get { return 80; }
} }
public static void NewLine() public static void NewLine() {
{
CurrentRow += 1; CurrentRow += 1;
CurrentChar = 0; CurrentChar = 0;
if (CurrentRow > Rows) if (CurrentRow > Rows) {
{
ScrollUp(); ScrollUp();
CurrentRow -= 1; CurrentRow -= 1;
CurrentChar = 0; CurrentChar = 0;
@ -44,15 +36,15 @@ namespace Cosmos.Hardware
SetCursor(); SetCursor();
} }
public static unsafe void Clear() public static unsafe void Clear() {
{
CheckInit(); CheckInit();
byte* xScreenPtr = (byte*)(VideoAddr + (2 * Columns)); byte* xScreenPtr = (byte*)(VideoAddr + (2 * Columns));
for (int i = 0; i < Columns * (Rows); i++) for (int i = 0; i < Columns * (Rows); i++) {
{
*xScreenPtr = 0; *xScreenPtr = 0;
xScreenPtr++; xScreenPtr++;
//TODO: This and prob bg color too are a bug. We cant put straight in
// because it causes blink etc. We need to translate/reduce the color.
*xScreenPtr = Color; *xScreenPtr = Color;
xScreenPtr++; xScreenPtr++;
} }
@ -62,13 +54,11 @@ namespace Cosmos.Hardware
SetCursor(); SetCursor();
} }
public static unsafe void ReallyClearScreen() public static unsafe void ReallyClearScreen() {
{
CheckInit(); CheckInit();
byte* xScreenPtr = (byte*)(VideoAddr); byte* xScreenPtr = (byte*)(VideoAddr);
for (int i = 0; i < Columns * Rows; i++) for (int i = 0; i < Columns * Rows; i++) {
{
*xScreenPtr = 0; *xScreenPtr = 0;
xScreenPtr++; xScreenPtr++;
*xScreenPtr = Color; *xScreenPtr = Color;
@ -80,25 +70,21 @@ namespace Cosmos.Hardware
SetCursor(); SetCursor();
} }
public static void WriteChar(char aChar) public static void WriteChar(char aChar) {
{
PutChar(CurrentRow, CurrentChar, aChar); PutChar(CurrentRow, CurrentChar, aChar);
CurrentChar += 1; CurrentChar += 1;
if (CurrentChar == Columns) if (CurrentChar == Columns) {
{
NewLine(); NewLine();
} }
SetCursor(); SetCursor();
} }
protected static unsafe void ScrollUp() protected static unsafe void ScrollUp() {
{
CheckInit(); CheckInit();
int Columns2 = Columns * 2; int Columns2 = Columns * 2;
byte* xScreenPtr = (byte*)(VideoAddr + Columns2); byte* xScreenPtr = (byte*)(VideoAddr + Columns2);
for (int i = 0; i < Columns * Rows; i++) for (int i = 0; i < Columns * Rows; i++) {
{
*xScreenPtr = *(xScreenPtr + Columns2); *xScreenPtr = *(xScreenPtr + Columns2);
xScreenPtr++; xScreenPtr++;
*xScreenPtr = *(xScreenPtr + Columns2); *xScreenPtr = *(xScreenPtr + Columns2);
@ -106,8 +92,7 @@ namespace Cosmos.Hardware
} }
xScreenPtr = (byte*)(VideoAddr + Rows * Columns * 2); xScreenPtr = (byte*)(VideoAddr + Rows * Columns * 2);
for (int i = 0; i < Columns; i++) for (int i = 0; i < Columns; i++) {
{
*xScreenPtr = 0; *xScreenPtr = 0;
xScreenPtr++; xScreenPtr++;
*xScreenPtr = Color; *xScreenPtr = Color;
@ -117,8 +102,7 @@ namespace Cosmos.Hardware
SetCursor(); SetCursor();
} }
public unsafe static void RemoveChar(int aLine, int aRow) public unsafe static void RemoveChar(int aLine, int aRow) {
{
CheckInit(); CheckInit();
int xScreenOffset = ((aRow + (aLine * Columns)) * 2); int xScreenOffset = ((aRow + (aLine * Columns)) * 2);
byte* xScreenPtr = (byte*)(VideoAddr + xScreenOffset); byte* xScreenPtr = (byte*)(VideoAddr + xScreenOffset);
@ -129,8 +113,7 @@ namespace Cosmos.Hardware
SetCursor(); SetCursor();
} }
public unsafe static void PutChar(int aLine, int aRow, char aChar) public unsafe static void PutChar(int aLine, int aRow, char aChar) {
{
CheckInit(); CheckInit();
int xScreenOffset = ((aRow + (aLine * Columns)) * 2); int xScreenOffset = ((aRow + (aLine * Columns)) * 2);
byte* xScreenPtr = (byte*)(VideoAddr + xScreenOffset); byte* xScreenPtr = (byte*)(VideoAddr + xScreenOffset);
@ -141,14 +124,12 @@ namespace Cosmos.Hardware
SetCursor(); SetCursor();
} }
public static void SetColors(ConsoleColor aForeground, ConsoleColor aBackground) public static void SetColors(ConsoleColor aForeground, ConsoleColor aBackground) {
{
CheckInit(); CheckInit();
Color = (byte)((byte)(aForeground) | ((byte)(aBackground) << 4)); Color = (byte)((byte)(aForeground) | ((byte)(aBackground) << 4));
} }
private static void SetCursor() private static void SetCursor() {
{
CheckInit(); CheckInit();
// TODO: // TODO:
@ -176,28 +157,22 @@ namespace Cosmos.Hardware
} }
private static int mCurrentRow = 1; private static int mCurrentRow = 1;
public static int CurrentRow public static int CurrentRow {
{ get {
get
{
return mCurrentRow; return mCurrentRow;
} }
set set {
{
mCurrentRow = value; mCurrentRow = value;
SetCursor(); SetCursor();
} }
} }
private static int mCurrentChar = 0; private static int mCurrentChar = 0;
public static int CurrentChar public static int CurrentChar {
{ get {
get
{
return mCurrentChar; return mCurrentChar;
} }
set set {
{
mCurrentChar = value; mCurrentChar = value;
SetCursor(); SetCursor();
} }

4
source/CosmosBoot/Program.cs
View file

@ -15,13 +15,15 @@ namespace CosmosBoot {
public static void Init() { public static void Init() {
var xBoot = new Cosmos.Sys.Boot(); var xBoot = new Cosmos.Sys.Boot();
xBoot.Execute(); xBoot.Execute();
Console.BackgroundColor = ConsoleColor.Green;
//Console.BackgroundColor = ConsoleColor.Blue;
//TODO: What is this next line for? //TODO: What is this next line for?
S.ReallyClearScreen(); S.ReallyClearScreen();
Console.WriteLine("Congratulations! You just booted C# code."); Console.WriteLine("Congratulations! You just booted C# code.");
Console.WriteLine("Edit Program.cs to create your own Operating System."); Console.WriteLine("Edit Program.cs to create your own Operating System.");
Console.WriteLine("Press a key to shutdown..."); Console.WriteLine("Press a key to shutdown...");
Console.Read(); Console.Read();
Cosmos.Sys.Deboot.ShutDown(); Cosmos.Sys.Deboot.ShutDown();
} }
} }