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Chip-8.txt
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Chip-8.txt
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//----- Variables -----------------------------------------------------------------------------------------------------
arm7.pc = 0
arm7.read_return = 0
arm9.pc = 0
arm9.read_return = 0
bg_mode = 0
c8.Load/Save_Quirk = 0
c8.Shift_quirk = 0
c8.Wrap_mode = 1
c8scrnsize = 6
calc.char = 0
calc.return = 0
calc.temp = 0
calc.temp2 = 0
chip8.audio toggle = 0
chip8.audio_buffer = 1
chip8.blendmode = 0
chip8.delay_timer = 1
chip8.drawflag = 300
chip8.drawmode = Fast/Sharp
chip8.drawplane = 1
chip8.drawvariety = 0
chip8.dummy = 8193
chip8.dummy2 = 35
chip8.dummy3 = 3
chip8.dummy4 = 1
chip8.dummy5 = 1
chip8.fx0aflag = 0
chip8.HPSFlag = 0
chip8.I = 796
chip8.pc = 724
chip8.pitch = 64
chip8.rand = 206
chip8.return = 0
chip8.screenheight = 64
chip8.screenwidth = 128
chip8.sound_timer = 0
chip8.spritewidth = 64
chip8m.collisioncolor = 255
core.byte_return = 0
core.condition_test = 0
core.dummy = 0
core.dummy2 = 0
core.dummy_op = 0
core.instruction_format = 0
core.little_endian = 0
core.op.dummy = 0
core.op.dummy2 = 0
core.read_return = 0
core.rotate_return = 0
core.shift_return = 0
CPF = 120
flags.met = 0
op.opcode = 0
op.pos = 0
op.temp = 0
program.done = 0
read.return = 0
read.single.return = 0
scanX = 0
scanY = 0
SF2091! fix = 0
storage.byte = 0
tile_mode = 0
VIP jumps = 1
_id = 0
_pitch = 0
//----- Lists ---------------------------------------------------------------------------------------------------------
arm7.registers = { }
arm9.flags = { }
arm9.registers = { }
Boot-128 = {
0x00
0x01
0x63
0x02
0x35
0x00
0x11
0x24
0xF3
0x29
0x21
0x70
0x80
0x40
0x80
0x06
0x80
0x06
0x80
0x06
0x80
0x06
0xF0
0x29
0x21
0x70
0xF4
0x29
0x21
0x70
0xA1
0x76
0x21
0x70
0x75
0xFF
0x21
0x66
0x87
0x80
0x87
0x0E
0x87
0x0E
0x87
0x0E
0x87
0x0E
0x21
0x66
0x88
0x74
0xA0
0x00
0xF4
0x1E
0x80
0x30
0x61
0x80
0xF1
0x1E
0xF1
0x1E
0x70
0xFF
0x30
0x00
0x11
0x3C
0x80
0x80
0xF0
0x55
0x74
0x01
0x44
0x00
0x73
0x01
0x43
0x10
0x12
0x00
0x35
0x27
0x11
0x04
0x65
0x00
0x46
0x18
0x11
0x62
0x76
0x06
0x11
0x04
0x00
0x00
0x11
0x04
0xA1
0x7A
0xD5
0x66
0xF8
0x0A
0xD5
0x66
0xF8
0x29
0xD5
0x65
0x75
0x05
0x00
0xEE
0x00
0x40
0x00
0x40
0x00
0x00
0x00
0x00
0x00
0xF0
}
chip8.keyboard = { }
chip8.memory = { }
chip8.registers = {
34
0
0
0
8
82
100
132
34
8
3
0
0
0
6
1
}
chip8.screen = { }
chip8.screen2 = { }
chip8.screen3 = { }
chip8.screen4 = { }
chip8.stack = { }
schip8.font = {
0x7C
0xC6
0xCE
0xDE
0xD6
0xF6
0xE6
0xC6
0x7C
0x00
0x10
0x30
0xF0
0x30
0x30
0x30
0x30
0x30
0xFC
0x00
0x78
0xCC
0xCC
0x0C
0x18
0x30
0x60
0xCC
0xFC
0x00
0x78
0xCC
0x0C
0x0C
0x38
0x0C
0x0C
0xCC
0x78
0x00
0x0C
0x1C
0x3C
0x6C
0xCC
0xFE
0x0C
0x0C
0x1E
0x00
0xFC
0xC0
0xC0
0xC0
0xF8
0x0C
0x0C
0xCC
0x78
0x00
0x38
0x60
0xC0
0xC0
0xF8
0xCC
0xCC
0xCC
0x78
0x00
0xFE
0xC6
0xC6
0x06
0x0C
0x18
0x30
0x30
0x30
0x00
0x78
0xCC
0xCC
0xEC
0x78
0xDC
0xCC
0xCC
0x78
0x00
0x7C
0xC6
0xC6
0xC6
0x7E
0x0C
0x18
0x30
0x70
0x00
0x30
0x78
0xCC
0xCC
0xCC
0xFC
0xCC
0xCC
0xCC
0x00
0xFC
0x66
0x66
0x66
0x7C
0x66
0x66
0x66
0xFC
0x00
0x3C
0x66
0xC6
0xC0
0xC0
0xC0
0xC6
0x66
0x3C
0x00
0xF8
0x6C
0x66
0x66
0x66
0x66
0x66
0x6C
0xF8
0x00
0xFE
0x62
0x60
0x64
0x7C
0x64
0x60
0x62
0xFE
0x00
0xFE
0x66
0x62
0x64
0x7C
0x64
0x60
0x60
0xF0
0x00
}
schip8.RPL = {
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
}
//----- Green flag events ---------------------------------------------------------------------------------------------
WhenGreenFlagClicked()
{
Looks.Say("");
chip8.starting address = 512;
chip8.CompatMode = "Octo";
Variable.Hide(chip8.CompatMode);
List.DeleteAll(chip8.stack);
List.DeleteAll(chip8.memory);
List.DeleteAll(chip8.screen);
List.DeleteAll(chip8.screen2);
List.DeleteAll(chip8.screen3);
List.DeleteAll(chip8.screen4);
List.DeleteAll(chip8.keyboard);
chip8.drawmode = "Fast/Sharp";
Control.DeleteThisClone();
}
//----- Key pressed events --------------------------------------------------------------------------------------------
WhenKeyPressed(5)
{
c8.Load/Save_Quirk = ((c8.Load/Save_Quirk + 1) % 2);
}
WhenKeyPressed(6)
{
c8.Shift_quirk = ((c8.Shift_quirk + 1) % 2);
}
WhenKeyPressed(8)
{
VIP jumps = ((VIP jumps + 1) % 2);
}
WhenKeyPressed(n)
{
SF2091! fix = ((SF2091! fix + 1) % 2);
}
WhenKeyPressed(7)
{
If (Inemu? == 2)
{
If (chip8.drawmode == "Fast/Sharp")
{
chip8.drawmode = "Accurate/Sharp";
}
Else
{
If (chip8.drawmode == "Accurate/Sharp")
{
Pen.Clear();
chip8.drawflag = 0;
chip8.drawmode = "Fast/Classic";
}
Else
{
If (chip8.drawmode == "Fast/Classic")
{
chip8.drawmode = "Accurate/Classic";
}
Else
{
Pen.SetPenSizeTo(1);
Pen.Clear();
chip8.drawflag = 0;
chip8.drawmode = "Fast/Sharp";
}
}
}
}
}
WhenKeyPressed(0)
{
If (Not ((chip8.CompatMode == "Megachip")))
{
If (chip8.CompatMode == "Octo")
{
chip8.CompatMode = "SCHIP";
c8.Wrap_mode = 0;
}
Else
{
If (chip8.CompatMode == "SCHIP")
{
chip8.CompatMode = "SCHIP+HPS";
c8.Load/Save_Quirk = 0;
c8.Shift_quirk = 0;
VIP jumps = 0;
c8.Wrap_mode = 0;
}
Else
{
If (chip8.CompatMode == "SCHIP+HPS")
{
chip8.CompatMode = "VIP";
c8.Load/Save_Quirk = 1;
c8.Shift_quirk = 1;
VIP jumps = 1;
SF2091! fix = 0;
c8.Wrap_mode = 0;
}
Else
{
chip8.CompatMode = "Octo";
c8.Wrap_mode = 1;
}
}
}
}
}
WhenKeyPressed(m)
{
chip8.audio toggle = ((chip8.audio toggle + 1) % 2);
}
WhenKeyPressed(9)
{
c8.Wrap_mode = ((c8.Wrap_mode + 1) % 2);
}
//----- Broadcast received events -------------------------------------------------------------------------------------
WhenBroadcastReceived(Chip-8)
{
If (rom.title == "SpaceFight2091 ")
{
SF2091! fix = 1;
chip8.CompatMode = "SCHIP";
}
Else
{
SF2091! fix = 0;
}
Event.Broadcast("WAVE-8 reset");
}
WhenBroadcastReceived(exit emulator)
{
Variable.Hide(c8scrnsize);
Variable.Hide(chip8.pc);
Variable.Hide(c8.Load/Save_Quirk);
Variable.Hide(c8.Shift_quirk);
Variable.Hide(CPF);
Variable.Hide(VIP jumps);
chip8.audio toggle = 0;
List.Hide(chip8.stack);
Variable.Hide(SF2091! fix);
c8scrnsize = 6;
Variable.Hide(chip8.CompatMode);
Variable.Hide(chip8.drawmode);
Variable.Hide(c8.Wrap_mode);
List.Hide(chip8.registers);
Stop(other scripts in sprite);
Control.DeleteThisClone();
}
WhenBroadcastReceived(Project not saving fix)
{
List.DeleteAll(chip8.memory);
List.DeleteAll(chip8.screen);
List.DeleteAll(chip8m.PCM);
List.DeleteAll(chip8.audiobuffer);
List.DeleteAll(chip8.screen2);
List.DeleteAll(chip8.screen3);
List.DeleteAll(chip8.screen4);
List.DeleteAll(chip8.stack);
c8.Load/Save_Quirk = 0;
c8.Shift_quirk = 0;
CPF = 120;
chip8.CompatMode = "Octo";
VIP jumps = 1;
SF2091! fix = 0;
c8.Wrap_mode = 1;
}
WhenBroadcastReceived(WAVE-8 reset)
{
Stop(other scripts in sprite);
Event.BroadcastAndWait("prune");
Sound.ClearEffects();
Sound.SetVolumeTo(0);
Sound.StopAllSounds();
Call chip8.reset;
Event.Broadcast("WAVE-8_drawkeys");
If ((chip8.memory[513] == 18) And (chip8.memory[514] == 96))
{
chip8.drawflag = 0;
c8scrnsize = 3;
chip8.pc = 704;
Call Screen Resize(64)(64);
}
Event.BroadcastAndWait("un-needed broadcast");
If (chip8.audio toggle == 0)
{
Event.BroadcastAndWait("wave create");
}
Control.Wait(0);
Forever
{
Call chip8.frame(CPF);
If ((Not ((chip8.CompatMode == "Megachip"))) And ((Operator.LetterOf(chip8.drawmode, 1) == "A") Or (Not ((chip8.drawflag == 300)))))
{
Call chip8.render;
}
Call chip8.get_keyboard;
If (chip8.fx0aflag > 0)
{
Call Fx0A((chip8.fx0aflag % 17));
}
If Sensing.KeyPressed(space)
{
List.Show(chip8.stack);
List.Show(chip8.registers);
If (Not ((chip8.CompatMode == "Megachip")))
{
Call chip8.render;
}
Sensing.Ask(Operator.Join("Type the number of Cycles Per Frame to run at. (PC: ", Operator.Join(Operator.Join(chip8.pc, Operator.Join(" I: ", Operator.Join(chip8.I, Operator.Join(" DT: ", Operator.Join(chip8.delay_timer, Operator.Join(Operator.Join(" ST: ", chip8.sound_timer), Operator.Join(" HPS: ", chip8.HPSFlag))))))), ")")));
CPF = abs(Operator.Round(Sensing.Answer()));
List.Hide(chip8.stack);
List.Hide(chip8.registers);
}
If Sensing.KeyPressed(enter)
{
Stop(other scripts in sprite);
Event.Broadcast("WAVE-8 reset");
Stop(this script);
}
Sound.SetVolumeTo(Sound.Volume());
}
}
//----- Custom blocks -------------------------------------------------------------------------------------------------
Define chip8.frame(string cycles) (warp=true)
{
A = 0;
Repeat Until (cycles == A)
{
A += 1;
Call chip8.opcode(chip8.memory[(chip8.pc + 1)])(chip8.memory[(chip8.pc + 2)]);
}
If (chip8.sound_timer > 0)
{
List.ReplaceItem(pitches, 3, ((((((chip8.pitch - 64) / 48) * 120) - 100) / 10) + 69));
pitch = ((pitches[3] - 93) * 10);
If (chip8.audioflag == 1)
{
Event.Broadcast("sound.updatech8buffer");
chip8.audioflag = 0;
}
chip8.sound_timer += -1;
}
Else
{
List.ReplaceItem(pitches, 3, -1);
pitch = -400;
}
If (chip8.delay_timer > 0)
{
chip8.delay_timer += -1;
}
}
Define chip8.get_keyboard (warp=true)
{
List.DeleteAll(chip8.keyboard);
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[1]) Or (Mobile Keypad state[14] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[2]) Or (Mobile Keypad state[1] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[3]) Or (Mobile Keypad state[2] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[4]) Or (Mobile Keypad state[3] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[5]) Or (Mobile Keypad state[5] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[6]) Or (Mobile Keypad state[6] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[7]) Or (Mobile Keypad state[7] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[8]) Or (Mobile Keypad state[9] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[9]) Or (Mobile Keypad state[10] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[10]) Or (Mobile Keypad state[11] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[11]) Or (Mobile Keypad state[13] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[12]) Or (Mobile Keypad state[15] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[13]) Or (Mobile Keypad state[4] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[14]) Or (Mobile Keypad state[8] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[15]) Or (Mobile Keypad state[12] == 1))));
List.Add(chip8.keyboard, floor((Sensing.KeyPressed(controls.chip8[16]) Or (Mobile Keypad state[16] == 1))));
}
Define chip8.opcode(string op1)(string op2) (warp=true)
{
chip8.pc += 2;
If (((op1 == "0x00") And (op2 == "0xe0")) Or ((op1 == "0x02") And (op2 == "0x30")))
{
If (0 < chip8.drawplane)
{
chip8.drawflag = 0;
If ((op2 == "0xe0") And (chip8.CompatMode == "Megachip"))
{
Call chip8.render;
}
If ((chip8.drawplane % 2) == 1)
{
List.DeleteAll(chip8.screen);
Repeat ((chip8.screenheight * chip8.screenwidth))
{
List.Add(chip8.screen, 0);
}
}
If (1 < chip8.drawplane)
{
List.DeleteAll(chip8.screen2);
Repeat ((chip8.screenheight * chip8.screenwidth))
{
List.Add(chip8.screen2, 0);
}
}
If (3 < (chip8.drawplane % 8))
{
List.DeleteAll(chip8.screen3);
Repeat ((chip8.screenheight * chip8.screenwidth))
{
List.Add(chip8.screen3, 0);
}
}
If (7 < chip8.drawplane)
{
List.DeleteAll(chip8.screen4);
Repeat ((chip8.screenheight * chip8.screenwidth))
{
List.Add(chip8.screen4, 0);
}
}
}
Stop(this script);
}
If (op1 == "0x00")
{
If ((191 < op2) And (op2 < 208))
{
If (0 < chip8.drawplane)
{
chip8.drawflag = 0;
chip8.dummy4 = (op2 % 16);
If ((chip8.screenwidth == 64) And (chip8.CompatMode == "SCHIP+HPS"))
{
If (0 < (op2 % 2))
{
If (chip8.HPSFlag == 0)
{
chip8.dummy4 += -1;
chip8.HPSFlag = 1;
}
Else
{
chip8.HPSFlag = 0;
}
}
chip8.dummy4 = ceiling((chip8.dummy4 / 2));
}
Repeat ((chip8.screenwidth * chip8.dummy4))
{
If ((chip8.drawplane % 2) == 1)
{
List.InsertItem(chip8.screen, 1, 0);
List.DeleteItem(chip8.screen, last);
}
If (1 < (chip8.drawplane % 4))
{
List.InsertItem(chip8.screen2, 1, 0);
List.DeleteItem(chip8.screen2, last);
}
If (3 < (chip8.drawplane % 8))
{
List.InsertItem(chip8.screen3, 1, 0);
List.DeleteItem(chip8.screen3, last);
}
If (7 < chip8.drawplane)
{
List.InsertItem(chip8.screen4, 1, 0);
List.DeleteItem(chip8.screen4, last);
}
}
}
Stop(this script);
}
If ((174 < op2) And (op2 < 224))
{
If (0 < chip8.drawplane)
{
chip8.drawflag = 0;
chip8.dummy4 = (op2 % 16);
If ((chip8.screenwidth == 64) And (chip8.CompatMode == "SCHIP+HPS"))
{
If (0 < (op2 % 2))
{
If (chip8.HPSFlag == 0)
{
chip8.dummy4 += -1;
chip8.HPSFlag = 1;
}
Else
{
chip8.HPSFlag = 0;
}
}
chip8.dummy4 = ceiling((chip8.dummy4 / 2));
}
Repeat ((chip8.screenwidth * chip8.dummy4))
{
If ((chip8.drawplane % 2) == 1)
{
List.Add(chip8.screen, 0);
List.DeleteItem(chip8.screen, 1);
}
If (1 < (chip8.drawplane % 4))
{
List.Add(chip8.screen2, 0);
List.DeleteItem(chip8.screen2, 1);
}
If (3 < (chip8.drawplane % 8))
{
List.Add(chip8.screen3, 0);
List.DeleteItem(chip8.screen3, 1);
}
If (7 < chip8.drawplane)
{
List.Add(chip8.screen4, 0);
List.DeleteItem(chip8.screen4, 1);
}
}
}
Stop(this script);
}
If (op2 == "0xE1")
{
chip8.dummy = 0;
If (0 < chip8.drawplane)
{
chip8.drawflag = 0;
If ((chip8.drawplane % 2) == 1)
{
Repeat ((chip8.screenwidth * chip8.screenheight))
{
chip8.dummy += 1;
List.ReplaceItem(chip8.screen, chip8.dummy, ((chip8.screen[chip8.dummy] + 1) % 2));
}
}
chip8.dummy = 0;
If (1 < (chip8.drawplane % 4))
{
Repeat ((chip8.screenwidth * chip8.screenheight))
{
chip8.dummy += 1;
List.ReplaceItem(chip8.screen2, chip8.dummy, ((chip8.screen2[chip8.dummy] + 1) % 2));
}
}
chip8.dummy = 0;
If (3 < (chip8.drawplane % 8))
{
Repeat ((chip8.screenwidth * chip8.screenheight))
{
chip8.dummy += 1;
List.ReplaceItem(chip8.screen3, chip8.dummy, ((chip8.screen3[chip8.dummy] + 1) % 2));
}
}
chip8.dummy = 0;
If (7 < chip8.drawplane)
{
Repeat ((chip8.screenwidth * chip8.screenheight))
{
chip8.dummy += 1;
List.ReplaceItem(chip8.screen4, chip8.dummy, ((chip8.screen4[chip8.dummy] + 1) % 2));
}
}
}
Stop(this script);
}
If (op2 == "0xEE")
{
chip8.pc = chip8.stack[last];
List.DeleteItem(chip8.stack, last);
Stop(this script);
}
If (op2 == "0xFB")
{
If (0 < chip8.drawplane)
{
chip8.drawflag = 0;
If (chip8.CompatMode == "SCHIP+HPS")
{
chip8.dummy3 = (chip8.screenwidth / 32);
}
Else
{
chip8.dummy3 = 4;
}
If ((chip8.drawplane % 2) == 1)
{
chip8.dummy = 1;
Repeat Until (chip8.dummy > (chip8.screenheight * chip8.screenwidth))
{
chip8.dummy4 = "";
chip8.dummy2 = 0;
Repeat ((chip8.screenwidth - chip8.dummy3))
{
chip8.dummy4 = Operator.Join(chip8.dummy4, chip8.screen[(chip8.dummy + chip8.dummy2)]);
chip8.dummy2 += 1;
}
chip8.dummy2 = chip8.dummy3;
chip8.dummy5 = 1;
Repeat (Variable.Length(chip8.dummy4))
{
List.ReplaceItem(chip8.screen, (chip8.dummy + chip8.dummy2), Operator.LetterOf(chip8.dummy4, chip8.dummy5));
chip8.dummy2 += 1;
chip8.dummy5 += 1;
}
chip8.dummy2 = 0;
Repeat (chip8.dummy3)
{
List.ReplaceItem(chip8.screen, (chip8.dummy + chip8.dummy2), 0);
chip8.dummy2 += 1;
}
chip8.dummy += chip8.screenwidth;
}
chip8.dummy4 = "";
}
If (1 < (chip8.drawplane % 4))
{
chip8.dummy = 1;
Repeat Until (chip8.dummy > (chip8.screenheight * chip8.screenwidth))
{
chip8.dummy4 = "";
chip8.dummy2 = 0;
Repeat ((chip8.screenwidth - chip8.dummy3))
{
chip8.dummy4 = Operator.Join(chip8.dummy4, chip8.screen2[(chip8.dummy + chip8.dummy2)]);
chip8.dummy2 += 1;
}
chip8.dummy2 = chip8.dummy3;
chip8.dummy5 = 1;
Repeat (Variable.Length(chip8.dummy4))
{
List.ReplaceItem(chip8.screen2, (chip8.dummy + chip8.dummy2), Operator.LetterOf(chip8.dummy4, chip8.dummy5));
chip8.dummy2 += 1;
chip8.dummy5 += 1;
}
chip8.dummy2 = 0;
Repeat (chip8.dummy3)
{
List.ReplaceItem(chip8.screen2, (chip8.dummy + chip8.dummy2), 0);
chip8.dummy2 += 1;
}
chip8.dummy += chip8.screenwidth;
}
chip8.dummy4 = "";
}
If (3 < (chip8.drawplane % 8))
{
chip8.dummy = 1;
Repeat Until (chip8.dummy > (chip8.screenheight * chip8.screenwidth))
{
chip8.dummy4 = "";
chip8.dummy2 = 0;
Repeat ((chip8.screenwidth - chip8.dummy3))
{
chip8.dummy4 = Operator.Join(chip8.dummy4, chip8.screen3[(chip8.dummy + chip8.dummy2)]);
chip8.dummy2 += 1;
}
chip8.dummy2 = chip8.dummy3;
chip8.dummy5 = 1;
Repeat (Variable.Length(chip8.dummy4))
{
List.ReplaceItem(chip8.screen3, (chip8.dummy + chip8.dummy2), Operator.LetterOf(chip8.dummy4, chip8.dummy5));
chip8.dummy2 += 1;
chip8.dummy5 += 1;
}
chip8.dummy2 = 0;
Repeat (chip8.dummy3)
{
List.ReplaceItem(chip8.screen3, (chip8.dummy + chip8.dummy2), 0);
chip8.dummy2 += 1;
}
chip8.dummy += chip8.screenwidth;