public void WriteMemory(ushort addr, byte value, bool poke)
{
var maskedAddr = (ushort)(addr & 0x3f);
if (!poke)
{
BusState = value;
}
if (maskedAddr == 0x00) // VSYNC
{
if ((value & 0x02) != 0)
{
// Frame is complete, output to buffer
_vsyncEnabled = true;
}
else if (_vsyncEnabled)
{
// When VSYNC is disabled, this will be the first line of the new frame
// write to frame buffer
OutputFrame(_currentScanLine);
New_Frame = true;
// Clear all from last frame
_currentScanLine = 0;
// Frame is done
_vsyncEnabled = false;
// Do not reset hsync, since we're on the first line of the new frame
// hsyncCnt = 0;
}
}
else if (maskedAddr == 0x01) // VBLANK
{
_vblankDelay = 1;
_vblankValue = value;
_capCharging = (value & 0x80) == 0;
if ((value & 0x80) == 0)
{
_capChargeStart = _core.Cpu.TotalExecutedCycles;
}
}
else if (maskedAddr == 0x02) // WSYNC
{
// Halt the CPU until we reach hblank
_core.Cpu.RDY = false;
}
else if (maskedAddr == 0x04) // NUSIZ0
{
_nusiz0Delay = 1;
_nusiz0Val = value;
}
else if (maskedAddr == 0x05) // NUSIZ1
{
_nusiz1Delay = 1;
_nusiz1Val = value;
}
else if (maskedAddr == 0x06) // COLUP0
{
_player0.Color = (byte)(value & 0xFE);
}
else if (maskedAddr == 0x07) // COLUP1
{
_player1.Color = (byte)(value & 0xFE);
}
else if (maskedAddr == 0x08) // COLUPF
{
_playField.PfColor = (byte)(value & 0xFE);
}
else if (maskedAddr == 0x09) // COLUBK
{
_playField.BkColor = (byte)(value & 0xFE);
}
else if (maskedAddr == 0x0A) // CTRLPF
{
_playField.Reflect = (value & 0x01) != 0;
_playField.Score = (value & 0x02) != 0;
_playField.Priority = (value & 0x04) != 0;
_ball.Size = (byte)((value & 0x30) >> 4);
}
else if (maskedAddr == 0x0B) // REFP0
{
_player0.Reflect = (value & 0x08) != 0;
}
else if (maskedAddr == 0x0C) // REFP1
{
_player1.Reflect = (value & 0x08) != 0;
}
else if (maskedAddr == 0x0D) // PF0
{
_pf0Update = value;
_pf0Updater = true;
_pf0DelayClock = 0;
if (((_hsyncCnt / 3) & 3) == 0)
{
_pf0MaxDelay = 4;
}
if (((_hsyncCnt / 3) & 3) == 1)
{
_pf0MaxDelay = 5;
}
if (((_hsyncCnt / 3) & 3) == 2)
{
_pf0MaxDelay = 2;
}
if (((_hsyncCnt / 3) & 3) == 3)
{
_pf0MaxDelay = 3;
}
}
else if (maskedAddr == 0x0E) // PF1
{
_pf1Update = value;
_pf1Updater = true;
_pf1DelayClock = 0;
if (((_hsyncCnt / 3) & 3) == 0)
{
_pf1MaxDelay = 4;
}
if (((_hsyncCnt / 3) & 3) == 1)
{
_pf1MaxDelay = 5;
}
if (((_hsyncCnt / 3) & 3) == 2)
{
_pf1MaxDelay = 2;
}
if (((_hsyncCnt / 3) & 3) == 3)
{
_pf1MaxDelay = 3;
}
}
else if (maskedAddr == 0x0F) // PF2
{
_pf2Update = value;
_pf2Updater = true;
_pf2DelayClock = 0;
if (((_hsyncCnt / 3) & 3) == 0)
{
_pf2MaxDelay = 4;
}
if (((_hsyncCnt / 3) & 3) == 1)
{
_pf2MaxDelay = 5;
}
if (((_hsyncCnt / 3) & 3) == 2)
{
_pf2MaxDelay = 2;
}
if (((_hsyncCnt / 3) & 3) == 3)
{
_pf2MaxDelay = 3;
}
}
else if (maskedAddr == 0x10) // RESP0
{
// RESP delays draw signal clocking
_player0.Resp_check();
// Resp depends on HMOVE
if (!_hmove.LateHBlankReset)
{
_player0.HPosCnt = (byte)(_hsyncCnt < 68 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 67)
{
_player0.HPosCnt = 160 - 3;
}
}
else
{
_player0.HPosCnt = (byte)(_hsyncCnt < 76 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 75)
{
_player0.HPosCnt = 160 - 3;
}
}
}
else if (maskedAddr == 0x11) // RESP1
{
// RESP delays draw signal clocking
_player1.Resp_check();
// RESP depends on HMOVE
if (!_hmove.LateHBlankReset)
{
_player1.HPosCnt = (byte)(_hsyncCnt < 68 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 67)
{
_player1.HPosCnt = 160 - 3;
}
}
else
{
_player1.HPosCnt = (byte)(_hsyncCnt < 76 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 75)
{
_player1.HPosCnt = 160 - 3;
}
}
}
else if (maskedAddr == 0x12) // RESM0
{
// RESP delays draw signal clocking
_player0.Missile.Resp_check();
if (!_hmove.LateHBlankReset)
{
_player0.Missile.HPosCnt = (byte)(_hsyncCnt < 68 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 67)
{
_player0.Missile.HPosCnt = 160 - 3;
}
}
else
{
_player0.Missile.HPosCnt = (byte)(_hsyncCnt < 76 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 75)
{
_player0.Missile.HPosCnt = 160 - 3;
}
}
}
else if (maskedAddr == 0x13) // RESM1
{
// RESP delays draw signal clocking
_player1.Missile.Resp_check();
if (!_hmove.LateHBlankReset)
{
_player1.Missile.HPosCnt = (byte)(_hsyncCnt < 68 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 67)
{
_player1.Missile.HPosCnt = 160 - 3;
}
}
else
{
_player1.Missile.HPosCnt = (byte)(_hsyncCnt < 76 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 75)
{
_player1.Missile.HPosCnt = 160 - 3;
}
}
}
else if (maskedAddr == 0x14) // RESBL
{
_ball.Resp_check();
if (!_hmove.LateHBlankReset)
{
_ball.HPosCnt = (byte)(_hsyncCnt < 68 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 67)
{
_ball.HPosCnt = 160 - 3;
}
}
else
{
_ball.HPosCnt = (byte)(_hsyncCnt < 76 ? 160 - 2 : 160 - 4);
if (_hsyncCnt == 75)
{
_ball.HPosCnt = 160 - 3;
}
}
}
else if (maskedAddr == 0x15) // AUDC0
{
AUD.AUDC_L = (byte)(value & 15);
}
else if (maskedAddr == 0x16) // AUDC1
{
AUD.AUDC_R = (byte)(value & 15);
}
else if (maskedAddr == 0x17) // AUDF0
{
AUD.AUDF_L = (byte)((value & 31) + 1);
}
else if (maskedAddr == 0x18) // AUDF1
{
AUD.AUDF_R = (byte)((value & 31) + 1);
}
else if (maskedAddr == 0x19) // AUDV0
{
AUD.AUDV_L = (byte)(value & 15);
}
else if (maskedAddr == 0x1A) // AUDV1
{
AUD.AUDV_R = (byte)(value & 15);
}
else if (maskedAddr == 0x1B) // GRP0
{
_prg0Val = value;
_prg0Delay = 1;
}
else if (maskedAddr == 0x1C) // GRP1
{
_prg1Val = value;
_prg1Delay = 1;
}
else if (maskedAddr == 0x1D) // ENAM0
{
_enam0Val = (value & 0x02) != 0;
_enam0Delay = 1;
}
else if (maskedAddr == 0x1E) // ENAM1
{
_enam1Val = (value & 0x02) != 0;
_enam1Delay = 1;
}
else if (maskedAddr == 0x1F) // ENABL
{
_enambVal = (value & 0x02) != 0;
_enambDelay = 1;
}
else if (maskedAddr == 0x20) // HMP0
{
_hmp0Val = (byte)((value & 0xF0) >> 4);
_hmp0Delay = 1;
}
else if (maskedAddr == 0x21) // HMP1
{
_hmp1Val = (byte)((value & 0xF0) >> 4);
_hmp1Delay = 1;
}
else if (maskedAddr == 0x22) // HMM0
{
_hmm0Val = (byte)((value & 0xF0) >> 4);
_hmm0Delay = 1;
}
else if (maskedAddr == 0x23) // HMM1
{
_hmm1Val = (byte)((value & 0xF0) >> 4);
_hmm1Delay = 1;
}
else if (maskedAddr == 0x24) // HMBL
{
_hmbVal = (byte)((value & 0xF0) >> 4);
_hmbDelay = 1;
}
else if (maskedAddr == 0x25) // VDELP0
{
_player0.Delay = (value & 0x01) != 0;
}
else if (maskedAddr == 0x26) // VDELP1
{
_player1.Delay = (value & 0x01) != 0;
}
else if (maskedAddr == 0x27) // VDELBL
{
_ball.Delay = (value & 0x01) != 0;
}
else if (maskedAddr == 0x28) // RESMP0
{
_player0.Missile.ResetToPlayer = (value & 0x02) != 0;
}
else if (maskedAddr == 0x29) // RESMP1
{
_player1.Missile.ResetToPlayer = (value & 0x02) != 0;
}
else if (maskedAddr == 0x2A) // HMOVE
{
_hmove.HMoveEnabled = true;
hmove_cnt_up = true;
_hmove.HMoveDelayCnt = 0;
}
else if (maskedAddr == 0x2B) // HMCLR
{
_hmClrDelay = 1;
}
else if (maskedAddr == 0x2C) // CXCLR
{
_player0.Collisions = 0;
_player0.Missile.Collisions = 0;
_player1.Collisions = 0;
_player1.Missile.Collisions = 0;
_ball.Collisions = 0;
}
}
