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Form4.cs
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Form4.cs
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using System;
using System.CodeDom;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Media;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
using Microsoft.Xna.Framework.Graphics;
using MarkGwilliam.com.Framework.Convert;
using Z80;
namespace H8DUtility
{
public partial class Form4 : Form
{
public class H19Panel : Form
{
protected override void OnPaintBackground(PaintEventArgs e)
{
}
}
private const int MaxTracks = 40;
private const int MaxSides = 1;
// maximum image size of a hard sector, double sided, 80 track drive
// double sided images will be stored as odd (256 bytes), even (256 bytes), etc.
// disk size is stored in the disk label, byte 16 (volume flags) for HDOS
// value 0 = 40 track, 1 side
// value 1 = 40 track, 2 sides
// value 2 = 80 track, 1 side
// value 3 = 80 track, 2 sides
private const int MaxImageSize = ((MaxTracks * MaxSides) * 2560);
public H89.H89Memory H89MEM;
public H89.H89IO H89IO;
public uP H89Z80;
public Z80Disassembler H89Z80Disasm;
private bool bKeyboardInterrupt;
private char[] KeyboardBuffer = new char[64];
private int KeyboardBufferBeg;
private int KeyboardBufferEnd;
private bool bBreak;
private bool bEsc;
private bool bLoadROM;
private bool bReset;
private bool bRunning;
private ushort BreakPointAddress;
private ushort DisassembleAddress;
private ushort DisassembleAddressNext;
private bool bH17Hole;
private bool bH17MotorOn;
private bool bH17RamEnable;
private bool bH17Write;
private bool bH17Read;
private bool bH17WriteGate;
private int H17Direction;
private int H17DriveSelect;
private int H17Drive;
private int H17Index;
private int H17Sector;
private int H17Side;
private int H17Track;
private int H17Revs;
private int H17WriteSector;
private int H17WriteState;
// time the sector hole remains active
private const int H17HoleTickMax = 3000;
private int H17HoleTick;
// time between sectors
private const int H17SectorTickMax = 19800;
private int H17SectorTick;
private bool[] bH17DoorOpen = new bool[3];
private bool[] bH17WriteProtect = new bool[3];
private int[] H17DiskVolume = new int[3];
private int GlobalTick;
private int UpdateTick;
private int LastTStates;
private string[] FullFileName = new string[3];
private string[] SafeFileName = new string[3];
private int DiskWriteIndex;
private int DiskReadIndex;
private int DiskReadCheckSum;
private byte[] LastPortInp = new byte[256];
private byte[] LastPortOut = new byte[256];
private struct ImageBuffer
{
public byte[] DiskImageBuffer;
public int Tracks;
public int Sides;
};
private bool[] bDiskImageDirty = new bool[3];
private ImageBuffer[] DiskImage = new ImageBuffer[3];
private System.Drawing.Color H19ScreenColor = System.Drawing.Color.Lime;
private byte[,] H19Cell = new byte[80, 25];
private PointF H19Scale = new PointF(1.4f, 2);
private bool bH19BlockCursor;
private bool bH19CursorAddressing;
private bool bH19CursorOn = true;
private bool bH19CursorVis;
private bool bH19GraphicsMode;
private bool bH19Init;
private bool bH19KeypadShift;
private bool bH19Line25;
private bool bH19ReverseVideo;
private bool bH19ResetMode;
private bool bH19SetMode;
private int H19CursorTick;
private const int H19FontHeight = 16;
private const int H19FontHeightStep = H19FontHeight / 16;
private const int H19FontWidth = 8;
private int H19ScreenCellWidth = 8;
private int H19ScreenCellHeight = 10 * H19FontHeightStep;
private int H19State;
private Point H19ScreenPos;
private Point H19SavedPos;
private SpriteBatch H19FontSprite;
private Texture2D[] H19Font = new Texture2D[256];
private GraphicsDevice H19RenderDevice;
private PresentationParameters H19RenderParams;
private H19Panel H19RenderSurface;
[DllImport("Kernel32.dll")]
private static extern bool QueryPerformanceCounter(out long count);
[DllImport("Kernel32.dll")]
private static extern bool QueryPerformanceFrequency(out long freq);
private double Frequency;
private UnicodeEncoding Encoding = new UnicodeEncoding();
//
//
//
public Form4()
{
InitializeComponent();
}
// dcp ROM Search function
private void Form4_BootROM()
{
string[] boot_list = Directory.GetFiles(string.Format(Application.StartupPath + "\\ROMS"),"b_*");
if (boot_list.Length == 0)
{
comboBox1.Items.Add("No Boot ROM File Found");
}
else
{
foreach (string files in boot_list)
{
string file_name;
file_name = files.Substring(files.LastIndexOf("\\") + 1).ToUpper();
comboBox1.Items.Add(file_name);
}
}
// Stream stream = new FileStream(string.Format("{0}\\ROMS\\2716_444-62_MTR89.BIN", Application.StartupPath), FileMode.Open);
}
private void Form4_Load(object sender, EventArgs e)
{
Form4_BootROM();
/* dcp
* comboBox1.Items.Add("444-62 (MTR-89)");
comboBox1.Items.Add("444-142 (MTR-90A)");
comboBox1.Items.Add("2732_mttest2");
*/
comboBox2.Items.Add("H-9");
comboBox2.Items.Add("H-19");
comboBox2.SelectedIndex = 1;
comboBox2.Enabled = false;
comboBox3.Items.Add("1S/40T");
comboBox3.Items.Add("2S/40T");
comboBox3.Items.Add("1S/80T");
comboBox3.Items.Add("2S/80T");
comboBox3.SelectedIndex = 0;
comboBox4.Items.Add("1S/40T");
comboBox4.Items.Add("2S/40T");
comboBox4.Items.Add("1S/80T");
comboBox4.Items.Add("2S/80T");
comboBox4.SelectedIndex = 0;
comboBox5.Items.Add("1S/40T");
comboBox5.Items.Add("2S/40T");
comboBox5.Items.Add("1S/80T");
comboBox5.Items.Add("2S/80T");
comboBox5.SelectedIndex = 0;
colorDialog1.Color = H19ScreenColor;
button8.BackColor = H19ScreenColor;
H19Init();
listBox1.DoubleClick += new EventHandler(listBox1_DoubleClick);
textBox1.Text = "000.000";
textBox1.KeyPress += new KeyPressEventHandler(textBox1_KeyPress);
textBox2.Text = "000.000";
textBox2.KeyPress += new KeyPressEventHandler(textBox2_KeyPress);
H89MEM = new H8DUtility.H89.H89Memory(this);
H89IO = new H8DUtility.H89.H89IO(this);
H89Z80 = new uP(H89MEM, H89IO);
H89Z80.OnFetch += new uP.OnFetchHandler(H89Z80_OnFetch);
H89MEM.OnRead += new OnReadHandler(H89Memory_OnRead);
H89MEM.OnWrite += new OnWriteHandler(H89Memory_OnWrite);
H89Z80Disasm = new Z80Disassembler(H89MEM);
comboBox1.SelectedIndex = 0;
comboBox2.SelectedIndex = 1;
this.FormClosing += new FormClosingEventHandler(Form4_FormClosing);
long freq;
if (QueryPerformanceFrequency(out freq))
{
Frequency = (double)freq;
}
else
{
checkBox4.Enabled = false;
}
}
void Form4_FormClosing(object sender, FormClosingEventArgs e)
{
H19RenderSurface.Close();
}
public void Unload()
{
}
public void H89Memory_OnRead(ushort address)
{
if (checkBox2.Checked)
{
if (H89Z80.Status.PC != address)
{
byte v = H89MEM.Raw[address];
SendToListBox(string.Format("< M{0},{1}", ToOctalAdr(address), ToOctal(v)));
}
}
}
public void H89Memory_OnWrite(ushort address, byte value)
{
if (address < 0x2000) // lower 8K
{
// if H17 RAM is disabled or ROM disable then just return
if ((bH17RamEnable == false) && (H89IO.Port362Q[0] & 0x20) == 0)
{
return;
}
}
if (checkBox2.Checked)
{
if (H89MEM.Raw[address] != value)
{
SendToListBox(string.Format("> M{0},{1}", ToOctalAdr(address), ToOctal(value)));
}
}
H89MEM.Raw[address] = value;
}
public void Delay(double secs)
{
long start_time;
QueryPerformanceCounter(out start_time);
long end_time = start_time;
double delay=0;
do
{
QueryPerformanceCounter(out end_time);
delay = (double)(end_time - start_time) / Frequency;
} while (delay < secs);
}
// calls this function before executing each instruction
void H89Z80_OnFetch()
{
int elapsed_states = H89Z80.tstates - LastTStates;
if (checkBox4.Checked)
{
Delay(0.000005);
}
if (bRunning)
{
if (BreakPointAddress != 0)
{
if (H89Z80.Status.PC == BreakPointAddress)
{
BreakPoint();
}
}
if (bH17Read == false && bH17WriteGate == false)
{
H17Service();
}
if (H89Z80.tstates >= 2000)
{
int tstates = H89Z80.tstates;
if ((H89IO.Port362Q[0] & 0x02) == 0x02)
{
H89Z80.Status.I = 1;
H89Z80.Interrupt();
}
H89Z80.tstates = tstates - 2000;
}
if (bKeyboardInterrupt)
{
if (KeyboardBufferStatus())
{
if (H89Z80.Status.IFF1)
{
H89Z80.Status.I = 3;
H89Z80.Interrupt();
}
}
else
{
bKeyboardInterrupt = false;
}
}
H17HoleTick += elapsed_states;
if (H17HoleTick > H17HoleTickMax)
{
H17HoleTick = H17HoleTickMax;
}
H17SectorTick += elapsed_states;
if (H17SectorTick > H17SectorTickMax)
{
H17SectorTick = H17SectorTickMax;
}
}
else
{
H89Z80.event_next_event = H89Z80.tstates;
}
LastTStates = H89Z80.tstates;
GlobalTick = Environment.TickCount & Int32.MaxValue;
if (GlobalTick - UpdateTick >= 16)
{
if (bH19CursorOn)
{
if (H19CursorTick >= 250)
{
if (bH19CursorVis)
{
bH19CursorVis = false;
}
else
{
bH19CursorVis = true;
}
H19CursorTick = 0;
H19Paint();
}
}
UpdateStats();
Application.DoEvents();
UpdateTick = GlobalTick;
H19CursorTick += 16;
}
}
void panel1_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
{
char c = (char)(e.KeyValue & 0x7F);
if (e.KeyCode == Keys.ControlKey)
{
return;
}
if (e.KeyCode == Keys.ShiftKey)
{
return;
}
if (e.KeyCode == Keys.Alt)
{
return;
}
if (e.Modifiers == Keys.Control)
{
c &= (char)0x1F;
}
else if (e.Modifiers == Keys.Shift)
{
switch (e.KeyCode)
{
case Keys.D0:
c = ')';
break;
case Keys.D1:
c = '!';
break;
case Keys.D2:
c = '@';
break;
case Keys.D3:
c = '#';
break;
case Keys.D4:
c = '$';
break;
case Keys.D5:
c = '%';
break;
case Keys.D6:
c = '^';
break;
case Keys.D7:
c = '&';
break;
case Keys.D8:
c = '*';
break;
case Keys.D9:
c = '(';
break;
case Keys.OemBackslash:
c = '|';
break;
case Keys.OemCloseBrackets:
c = '}';
break;
case Keys.Oemcomma:
c = '<';
break;
case Keys.OemMinus:
c = '_';
break;
case Keys.OemOpenBrackets:
c = '{';
break;
case Keys.OemPeriod:
c = '>';
break;
case Keys.OemPipe:
c = '|';
break;
case Keys.Oemplus:
c = '+';
break;
case Keys.OemQuestion:
c = '?';
break;
case Keys.OemQuotes:
c = '"';
break;
case Keys.OemSemicolon:
c = ':';
break;
case Keys.Oemtilde:
c = '~';
break;
}
}
else
{
switch (e.KeyCode)
{
case Keys.OemBackslash:
c = (char)0x5C;
break;
case Keys.OemCloseBrackets:
c = ']';
break;
case Keys.Oemcomma:
c = ',';
break;
case Keys.OemMinus:
c = '-';
break;
case Keys.OemOpenBrackets:
c = '[';
break;
case Keys.OemPeriod:
c = '.';
break;
case Keys.OemPipe:
c = (char)0x5C;
break;
case Keys.Oemplus:
c = '=';
break;
case Keys.OemQuestion:
c = '/';
break;
case Keys.OemQuotes:
c = (char)0x27;
break;
case Keys.OemSemicolon:
c = ';';
break;
case Keys.Oemtilde:
c = '`';
break;
case Keys.NumPad0:
c = '0';
break;
case Keys.NumPad1:
case Keys.End:
c = '1';
break;
case Keys.NumPad2:
case Keys.Down:
c = '2';
break;
case Keys.NumPad3:
case Keys.PageDown:
c = '3';
break;
case Keys.NumPad4:
case Keys.Left:
c = '4';
break;
case Keys.NumPad5:
c = '5';
break;
case Keys.NumPad6:
case Keys.Right:
c = '6';
break;
case Keys.NumPad7:
case Keys.Home:
c = '7';
break;
case Keys.NumPad8:
case Keys.Up:
c = '8';
break;
case Keys.NumPad9:
case Keys.PageUp:
c = '9';
break;
case Keys.Insert:
c = '0';
break;
case Keys.Delete:
c = '.';
break;
case Keys.F1:
KeyboardCharInsert((char)0x1B);
c = 'S';
break;
case Keys.F2:
KeyboardCharInsert((char)0x1B);
c = 'T';
break;
case Keys.F3:
KeyboardCharInsert((char)0x1B);
c = 'U';
break;
case Keys.F4:
KeyboardCharInsert((char)0x1B);
c = 'V';
break;
case Keys.F5:
KeyboardCharInsert((char)0x1B);
c = 'W';
break;
case Keys.F7: // blue
KeyboardCharInsert((char)0x1B);
c = 'P';
break;
case Keys.F8: // red
KeyboardCharInsert((char)0x1B);
c = 'Q';
break;
case Keys.F9: // gray
KeyboardCharInsert((char)0x1B);
c = 'R';
break;
default:
if (e.KeyValue >= 'A' && e.KeyValue <= 'Z')
{
if (Control.IsKeyLocked(Keys.CapsLock) == false)
{
c |= (char)0x20;
}
}
break;
}
}
KeyboardCharInsert(c);
if ((H89IO.Port350Q[1] & 0x01) == 0x01)
{
H89IO.Port350Q[5] |= 0x01;
H89IO.Port350Q[2] = 0x04;
bKeyboardInterrupt = true;
}
}
public void KeyboardCharInsert(char c)
{
KeyboardBuffer[KeyboardBufferEnd] = c;
KeyboardBufferEnd = (KeyboardBufferEnd + 1) % 64;
}
public char ReadKeyboardBuffer()
{
char k = KeyboardBuffer[KeyboardBufferBeg];
KeyboardBufferBeg = (KeyboardBufferBeg + 1) % 64;
return (k);
}
public bool KeyboardBufferStatus()
{
if (KeyboardBufferBeg != KeyboardBufferEnd)
{
return (true);
}
return (false);
}
public void OnPortRead(ushort port, byte value)
{
if (checkBox1.Checked)
{
bool skip = false;
if (checkBox5.Checked)
{
if (port == 0x7C || port == 0xE8)
{
skip = true;
}
else if (LastPortInp[port] == value)
{
skip = true;
}
}
if (!skip && port != 0xED)
{
LastPortInp[port] = value;
SendToListBox(string.Format("< INP {0:X2},{1:X2}", port, value));
}
}
if (port >= 0x7C && port <= 0x7F)
{
if (port == 0x7C)
{
H89IO.Port174Q[2] = 0xFF;
H17ReadNextByte();
}
else if (port == 0x7D)
{
H89IO.Port174Q[3] &= 0xF7; // reset sync detect flag
}
else if (port == 0x7F)
{
H17Service();
}
if (bH17WriteGate)
{
bH17Read = false;
}
}
}
public void OnPortWrite(ushort port, byte value)
{
if (checkBox3.Checked)
{
bool skip = false;
if (checkBox5.Checked)
{
if (port == 0x7C || port == 0xE8)
{
skip = true;
}
else if (LastPortOut[port] == value)
{
skip = true;
}
}
if (!skip && port != 0xF0)
{
LastPortOut[port] = value;
SendToListBox(string.Format("> OUT {0:X2},{1:X2}", port, value));
}
}
if (port == 0xF2)
{
if ((value & 0x40) == 0)
{
H17Side = 0;
}
else if ((value & 0x40) == 0x40)
{
H17Side = 1;
}
}
}
// writing to the H17 control port 177Q
public void H17Control(ushort port,byte value)
{
// 0000.0001 = write gate enable
if ((value & 0x01) != 0)
{
bH17WriteGate = true;
H89IO.Port174Q[1] |= 0x80; // set transmit buffer empty flag
if (bH17Read)
{
H17WriteState = 1;
}
else
{
H17WriteState = 2;
}
}
else
{
H89IO.Port174Q[1] &= 0x7F; // reset transmit buffer empty flag
bH17WriteGate = false;
bH17Write = false;
}
// 0001.0000 = motor on
if ((value & 0x10) != 0)
{
bH17MotorOn = true;
}
else
{
bH17MotorOn = false;
H17WriteState = 0;
}
// 0000.0010 = drive select 0
if ((value & 0x02) != 0)
{
H17DriveSelect |= 1;
H17Drive = 0;
}
// 0000.0100 = drive select 1
if ((value & 0x04) != 0)
{
H17DriveSelect |= 2;
H17Drive = 1;
}
// 0000.1000 = drive select 2
if ((value & 0x08) != 0)
{
H17DriveSelect |= 4;
H17Drive = 2;
}
if (bH17MotorOn && H17DriveSelect != 0)
{
if (H17Drive != 0) // if no volume is loaded, create an empty one
{
if (DiskImage[H17Drive].DiskImageBuffer == null)
{
int drive_type = 0;
int image_size = MaxImageSize;
if (H17Drive == 0)
{
drive_type = comboBox3.SelectedIndex;
}
else if (H17Drive == 1)
{
drive_type = comboBox4.SelectedIndex;
}
else if (H17Drive == 2)
{
drive_type = comboBox5.SelectedIndex;
}
switch (drive_type)
{
case 0:
DiskImage[H17Drive].Tracks = 40;
DiskImage[H17Drive].Sides = 1;
break;
case 1:
DiskImage[H17Drive].Tracks = 40;
DiskImage[H17Drive].Sides = 2;
break;
case 2:
DiskImage[H17Drive].Tracks = 80;
DiskImage[H17Drive].Sides = 1;
break;
case 3:
DiskImage[H17Drive].Tracks = 80;
DiskImage[H17Drive].Sides = 2;
break;
}
image_size = (DiskImage[H17Drive].Tracks * DiskImage[H17Drive].Sides * 2560);
DiskImage[H17Drive].DiskImageBuffer = new byte[image_size];
if (H17Drive == 1)
{
label2.Text = string.Format("BLANK {0}K BYTES", image_size / 1024);
this.Refresh();
}
else
{
label3.Text = string.Format("BLANK {0}K BYTES", image_size / 1024);
this.Refresh();
}
}
}
}
else
{
H17DriveSelect = 0;
H17WriteSector = 0;
}
// 0010.0000 = head step direction (0 = out)
if ((value & 0x20) != 0)
{
H17Direction = 1;
}
else
{
H17Direction = 0;
}
// 0100.0000 = head step
if ((value & 0x40) != 0)
{
if (H17Direction == 1)
{
if (H17Track < DiskImage[H17Drive].Tracks)
{
if (port >= 0x78 && port <= 0x7B)
{
H89IO.Port170Q[3] &= 0x0D; // turn off track0 flag
}
else
{
H89IO.Port174Q[3] &= 0x0D; // turn off track0 flag
}
H17Track++;
}
}
else
{
if (H17Track > 0)
{
H17Track--;
}
if (H17Track == 0)
{
if (port >= 0x78 && port <= 0x7B)
{
H89IO.Port170Q[3] |= 0x02; // turn on track0 flag
}
else
{
H89IO.Port174Q[3] |= 0x02; // turn on track0 flag
}
}
}
}
// 1000.0000 = low ram write enable
if ((value & 0x80) != 0)
{
bH17RamEnable = true;
}
else
{
bH17RamEnable = false;
}
}
public void H17Write(ushort port, byte value)
{
int p = port - 0x7C;
if (bH17WriteGate)
{
if (p == 0) // port 174Q
{
if (bH17Write)
{
// write byte into disk image buffer
if (H17WriteState == 2)
{
H17Sector = H17WriteSector;
}
H17WriteNextByte(value);
}
else
{
if (value == 0xFD) // sync char turns on write mode
{
if (DiskWriteIndex != 6)
{
DiskWriteIndex = 0;
}
bH17Write = true;
}
}
//SendToListBox(string.Format("< {0:X2},{1:X2}", port, value));
}
}
if (p == 2 && value == 0xFD)
{
if ((H89IO.Port174Q[3] & 0x08) == 0x00)
{
H89IO.Port174Q[3] |= 0x08; // sync detect flag
DiskReadCheckSum = 0xFD; // reset checksum
DiskReadIndex = 0; // reset data read buffer index
DiskWriteIndex = 0; // reset data write buffer index
H17ReadByte(0xFD); // send sync byte
H17WriteState = 0;
bH17Read = true;
}
}
H89IO.Port174Q[p] = value;
}
public bool H17DiskWriteProtect()
{
if (H17DriveSelect != 0)
{
return (bH17WriteProtect[H17Drive]);
}
return (false);
}
public void H17Service()
{
if (bH17MotorOn)
{
H17ServiceIndexHoles();
}
}
public void H17ServiceIndexHoles()
{
if (bH17DoorOpen[H17Drive])
{
return;
}
if (bH17Hole)
{
H17ServiceHoleOn();
}
else
{
H17ServiceHoleOff();
}
}
public void H17ServiceHoleOn()
{
if (H17HoleTick >= H17HoleTickMax)
{
H17Hole(false);
}
}
public void H17ServiceHoleOff()
{
int delay = H17SectorTickMax;
switch (H17Index)
{
case 9:
case 10:
delay = H17SectorTickMax / 2;
break;
}
if (H17SectorTick >= delay)
{
H17NextSector();
H17Hole(true);
H17SectorTick = 0;
}
}
public void H17NextSector()
{
H17Index = (H17Index + 1) % 11;
if (H17Index == 10)
{
if (checkBox6.Checked)