void RenderFromStartClockTo(ulong endClock)
{
RenderClock:
if (StartClock >= endClock)
return;
++HSync;
if (StartClock == StartHMOVEClock)
{
// turn on HMOVE
HMoveLatch = true;
HMoveCounter = 0xf;
P0mmr = P1mmr = M0mmr = M1mmr = BLmmr = true;
}
else if (HSync == 0)
{
// just wrapped around, clear late HBLANK
HMoveLatch = false;
}
// position counters are incremented during the visible portion of the scanline
if (HSync >= 68 + (HMoveLatch ? 8 : 0))
{
++P0; ++P1; ++M0; ++M1; ++BL;
}
// HMOVE compare, once every 1/4 CLK when on
if (HMoveCounter >= 0 && (HSync & 3) == 0)
{
if (((HMoveCounter ^ RegW[HMP0]) & 0xf) == 0xf) P0mmr = false;
if (((HMoveCounter ^ RegW[HMP1]) & 0xf) == 0xf) P1mmr = false;
if (((HMoveCounter ^ RegW[HMM0]) & 0xf) == 0xf) M0mmr = false;
if (((HMoveCounter ^ RegW[HMM1]) & 0xf) == 0xf) M1mmr = false;
if (((HMoveCounter ^ RegW[HMBL]) & 0xf) == 0xf) BLmmr = false;
if (HMoveCounter >= 0) HMoveCounter--;
}
// HMOVE increment, once every 1/4 CLK, 2 CLK after first compare when on
if (HMoveCounter < 0xf && (HSync & 3) == 2)
{
if (HSync < 68 + (HMoveLatch ? 8 : 0))
{
if (P0mmr) ++P0;
if (P1mmr) ++P1;
if (M0mmr) ++M0;
if (M1mmr) ++M1;
if (BLmmr) ++BL;
}
}
if (HSync == 68 + 76) PFReflectionState = RegW[CTRLPF] & 0x01;
var fbyte = (byte)0;
var fbyte_colupf = colupf;
TIACxFlags cxflags = 0;
if (vblankon || HSync < 68 + (HMoveLatch ? 8 : 0)) goto WritePixel;
fbyte = colubk;
var colupfon = false;
if ((PF210 & TIATables.PFMask[PFReflectionState][HSync - 68]) != 0)
{
if (scoreon) fbyte_colupf = (HSync - 68) < 80 ? colup0 : colup1;
colupfon = true;
cxflags |= TIACxFlags.PF;
}
if (blon && BL >= 0 && TIATables.BLMask[BLsize][BL])
{
colupfon = true;
cxflags |= TIACxFlags.BL;
}
if (!pfpriority && colupfon)
{
fbyte = fbyte_colupf;
}
if (m1on && M1 >= 0 && TIATables.MxMask[M1size][M1type][M1])
{
fbyte = colup1;
cxflags |= TIACxFlags.M1;
}
if (P1 >= 0 && (TIATables.PxMask[P1suppress][P1type][P1] & EffGRP1) != 0)
{
fbyte = colup1;
cxflags |= TIACxFlags.P1;
}
if (m0on && M0 >= 0 && TIATables.MxMask[M0size][M0type][M0])
{
fbyte = colup0;
cxflags |= TIACxFlags.M0;
}
if (P0 >= 0 && (TIATables.PxMask[P0suppress][P0type][P0] & EffGRP0) != 0)
{
fbyte = colup0;
cxflags |= TIACxFlags.P0;
}
if (pfpriority && colupfon)
{
fbyte = fbyte_colupf;
}
WritePixel:
Collisions |= TIATables.CollisionMask[(int)cxflags];
if (HSync >= 68)
{
M.FrameBuffer.VideoBuffer[FrameBufferIndex++] = fbyte;
if (FrameBufferIndex == M.FrameBuffer.VideoBufferByteLength)
FrameBufferIndex = 0;
if (HSync == 227)
ScanLine++;
}
if (P0 >= 156) P0suppress = 0;
if (P1 >= 156) P1suppress = 0;
// denote this CLK has been completed by incrementing to the next
StartClock++;
goto RenderClock;
}
void opCXCLR(ushort addr, byte data)
{
Collisions = 0;
}
public TIA(DeserializationContext input, MachineBase m) : this()
{
if (input == null)
throw new ArgumentNullException("input");
if (m == null)
throw new ArgumentNullException("m");
M = m;
TIASound = input.ReadTIASound(M, CPU_TICKS_PER_AUDIO_SAMPLE);
input.CheckVersion(2);
RegW = input.ReadExpectedBytes(0x40);
HSync = input.ReadInt32();
HMoveCounter = input.ReadInt32();
ScanLine = input.ReadInt32();
FrameBufferIndex = input.ReadInt32();
//FrameBufferElement = input.ReadBufferElement();
StartHMOVEClock = input.ReadUInt64();
HMoveLatch = input.ReadBoolean();
StartClock = input.ReadUInt64();
P0 = input.ReadInt32();
P0mmr = input.ReadBoolean();
EffGRP0 = input.ReadByte();
OldGRP0 = input.ReadByte();
P0type = input.ReadInt32();
P0suppress = input.ReadInt32();
P1 = input.ReadInt32();
P1mmr = input.ReadBoolean();
EffGRP1 = input.ReadByte();
OldGRP1 = input.ReadByte();
P1type = input.ReadInt32();
P1suppress = input.ReadInt32();
M0 = input.ReadInt32();
M0mmr = input.ReadBoolean();
M0type = input.ReadInt32();
M0size = input.ReadInt32();
m0on = input.ReadBoolean();
M1 = input.ReadInt32();
M1mmr = input.ReadBoolean();
M1type = input.ReadInt32();
M1size = input.ReadInt32();
m1on = input.ReadBoolean();
BL = input.ReadInt32();
BLmmr = input.ReadBoolean();
OldENABL = input.ReadBoolean();
BLsize = input.ReadInt32();
blon = input.ReadBoolean();
PF210 = input.ReadUInt32();
PFReflectionState = input.ReadInt32();
colubk = input.ReadByte();
colupf = input.ReadByte();
colup0 = input.ReadByte();
colup1 = input.ReadByte();
vblankon = input.ReadBoolean();
scoreon = input.ReadBoolean();
pfpriority = input.ReadBoolean();
DumpEnabled = input.ReadBoolean();
DumpDisabledCycle = input.ReadUInt64();
Collisions = (TIACxPairFlags)input.ReadInt32();
WSYNCDelayClocks = input.ReadInt32();
EndOfFrame = input.ReadBoolean();
}
void RenderFromStartClockTo(ulong endClock)
{
RenderClock:
if (StartClock >= endClock)
{
return;
}
++HSync;
if (StartClock == StartHMOVEClock)
{
// turn on HMOVE
HMoveLatch = true;
HMoveCounter = 0xf;
P0mmr = P1mmr = M0mmr = M1mmr = BLmmr = true;
}
else if (HSync == 0)
{
// just wrapped around, clear late HBLANK
HMoveLatch = false;
}
// position counters are incremented during the visible portion of the scanline
if (HSync >= 68 + (HMoveLatch ? 8 : 0))
{
++P0; ++P1; ++M0; ++M1; ++BL;
}
// HMOVE compare, once every 1/4 CLK when on
if (HMoveCounter >= 0 && (HSync & 3) == 0)
{
if (((HMoveCounter ^ RegW[HMP0]) & 0xf) == 0xf)
{
P0mmr = false;
}
if (((HMoveCounter ^ RegW[HMP1]) & 0xf) == 0xf)
{
P1mmr = false;
}
if (((HMoveCounter ^ RegW[HMM0]) & 0xf) == 0xf)
{
M0mmr = false;
}
if (((HMoveCounter ^ RegW[HMM1]) & 0xf) == 0xf)
{
M1mmr = false;
}
if (((HMoveCounter ^ RegW[HMBL]) & 0xf) == 0xf)
{
BLmmr = false;
}
if (HMoveCounter >= 0)
{
HMoveCounter--;
}
}
// HMOVE increment, once every 1/4 CLK, 2 CLK after first compare when on
if (HMoveCounter < 0xf && (HSync & 3) == 2)
{
if (HSync < 68 + (HMoveLatch ? 8 : 0))
{
if (P0mmr)
{
++P0;
}
if (P1mmr)
{
++P1;
}
if (M0mmr)
{
++M0;
}
if (M1mmr)
{
++M1;
}
if (BLmmr)
{
++BL;
}
}
}
if (HSync == 68 + 76)
{
PFReflectionState = RegW[CTRLPF] & 0x01;
}
var fbyte = (byte)0;
var fbyte_colupf = colupf;
TIACxFlags cxflags = 0;
if (vblankon || HSync < 68 + (HMoveLatch ? 8 : 0))
{
goto WritePixel;
}
fbyte = colubk;
var colupfon = false;
if ((PF210 & TIATables.PFMask[PFReflectionState][HSync - 68]) != 0)
{
if (scoreon)
{
fbyte_colupf = (HSync - 68) < 80 ? colup0 : colup1;
}
colupfon = true;
cxflags |= TIACxFlags.PF;
}
if (blon && BL >= 0 && TIATables.BLMask[BLsize][BL])
{
colupfon = true;
cxflags |= TIACxFlags.BL;
}
if (!pfpriority && colupfon)
{
fbyte = fbyte_colupf;
}
if (m1on && M1 >= 0 && TIATables.MxMask[M1size][M1type][M1])
{
fbyte = colup1;
cxflags |= TIACxFlags.M1;
}
if (P1 >= 0 && (TIATables.PxMask[P1suppress][P1type][P1] & EffGRP1) != 0)
{
fbyte = colup1;
cxflags |= TIACxFlags.P1;
}
if (m0on && M0 >= 0 && TIATables.MxMask[M0size][M0type][M0])
{
fbyte = colup0;
cxflags |= TIACxFlags.M0;
}
if (P0 >= 0 && (TIATables.PxMask[P0suppress][P0type][P0] & EffGRP0) != 0)
{
fbyte = colup0;
cxflags |= TIACxFlags.P0;
}
if (pfpriority && colupfon)
{
fbyte = fbyte_colupf;
}
WritePixel:
Collisions |= TIATables.CollisionMask[(int)cxflags];
if (HSync >= 68)
{
M.FrameBuffer.VideoBuffer[FrameBufferIndex++] = fbyte;
if (FrameBufferIndex == M.FrameBuffer.VideoBufferByteLength)
{
FrameBufferIndex = 0;
}
if (HSync == 227)
{
ScanLine++;
}
}
if (P0 >= 156)
{
P0suppress = 0;
}
if (P1 >= 156)
{
P1suppress = 0;
}
// denote this CLK has been completed by incrementing to the next
StartClock++;
goto RenderClock;
}
public TIA(DeserializationContext input, MachineBase m) : this()
{
if (input == null)
{
throw new ArgumentNullException("input");
}
if (m == null)
{
throw new ArgumentNullException("m");
}
M = m;
TIASound = input.ReadTIASound(M, CPU_TICKS_PER_AUDIO_SAMPLE);
input.CheckVersion(2);
RegW = input.ReadExpectedBytes(0x40);
HSync = input.ReadInt32();
HMoveCounter = input.ReadInt32();
ScanLine = input.ReadInt32();
FrameBufferIndex = input.ReadInt32();
//FrameBufferElement = input.ReadBufferElement();
StartHMOVEClock = input.ReadUInt64();
HMoveLatch = input.ReadBoolean();
StartClock = input.ReadUInt64();
P0 = input.ReadInt32();
P0mmr = input.ReadBoolean();
EffGRP0 = input.ReadByte();
OldGRP0 = input.ReadByte();
P0type = input.ReadInt32();
P0suppress = input.ReadInt32();
P1 = input.ReadInt32();
P1mmr = input.ReadBoolean();
EffGRP1 = input.ReadByte();
OldGRP1 = input.ReadByte();
P1type = input.ReadInt32();
P1suppress = input.ReadInt32();
M0 = input.ReadInt32();
M0mmr = input.ReadBoolean();
M0type = input.ReadInt32();
M0size = input.ReadInt32();
m0on = input.ReadBoolean();
M1 = input.ReadInt32();
M1mmr = input.ReadBoolean();
M1type = input.ReadInt32();
M1size = input.ReadInt32();
m1on = input.ReadBoolean();
BL = input.ReadInt32();
BLmmr = input.ReadBoolean();
OldENABL = input.ReadBoolean();
BLsize = input.ReadInt32();
blon = input.ReadBoolean();
PF210 = input.ReadUInt32();
PFReflectionState = input.ReadInt32();
colubk = input.ReadByte();
colupf = input.ReadByte();
colup0 = input.ReadByte();
colup1 = input.ReadByte();
vblankon = input.ReadBoolean();
scoreon = input.ReadBoolean();
pfpriority = input.ReadBoolean();
DumpEnabled = input.ReadBoolean();
DumpDisabledCycle = input.ReadUInt64();
Collisions = (TIACxPairFlags)input.ReadInt32();
WSYNCDelayClocks = input.ReadInt32();
EndOfFrame = input.ReadBoolean();
}
void opCXCLR(ushort addr, byte data)
{
Collisions = 0;
}
static TIACxPairFlags[] BuildCollisionMaskTable()
{
var tabl = new TIACxPairFlags[64];
for (var i = 0; i < 64; i++)
{
tabl[i] = 0;
if (tstCx(i, TIACxFlags.M0, TIACxFlags.P1))
{
tabl[i] |= TIACxPairFlags.M0P1;
}
if (tstCx(i, TIACxFlags.M0, TIACxFlags.P0))
{
tabl[i] |= TIACxPairFlags.M0P0;
}
if (tstCx(i, TIACxFlags.M1, TIACxFlags.P0))
{
tabl[i] |= TIACxPairFlags.M1P0;
}
if (tstCx(i, TIACxFlags.M1, TIACxFlags.P1))
{
tabl[i] |= TIACxPairFlags.M1P1;
}
if (tstCx(i, TIACxFlags.P0, TIACxFlags.PF))
{
tabl[i] |= TIACxPairFlags.P0PF;
}
if (tstCx(i, TIACxFlags.P0, TIACxFlags.BL))
{
tabl[i] |= TIACxPairFlags.P0BL;
}
if (tstCx(i, TIACxFlags.P1, TIACxFlags.PF))
{
tabl[i] |= TIACxPairFlags.P1PF;
}
if (tstCx(i, TIACxFlags.P1, TIACxFlags.BL))
{
tabl[i] |= TIACxPairFlags.P1BL;
}
if (tstCx(i, TIACxFlags.M0, TIACxFlags.PF))
{
tabl[i] |= TIACxPairFlags.M0PF;
}
if (tstCx(i, TIACxFlags.M0, TIACxFlags.BL))
{
tabl[i] |= TIACxPairFlags.M0BL;
}
if (tstCx(i, TIACxFlags.M1, TIACxFlags.PF))
{
tabl[i] |= TIACxPairFlags.M1PF;
}
if (tstCx(i, TIACxFlags.M1, TIACxFlags.BL))
{
tabl[i] |= TIACxPairFlags.M1BL;
}
if (tstCx(i, TIACxFlags.BL, TIACxFlags.PF))
{
tabl[i] |= TIACxPairFlags.BLPF;
}
if (tstCx(i, TIACxFlags.P0, TIACxFlags.P1))
{
tabl[i] |= TIACxPairFlags.P0P1;
}
if (tstCx(i, TIACxFlags.M0, TIACxFlags.M1))
{
tabl[i] |= TIACxPairFlags.M0M1;
}
}
return(tabl);
}
static TIACxPairFlags[] BuildCollisionMaskTable()
{
var tabl = new TIACxPairFlags[64];
for (var i = 0; i < 64; i++)
{
tabl[i] = 0;
if (tstCx(i, TIACxFlags.M0, TIACxFlags.P1)) { tabl[i] |= TIACxPairFlags.M0P1; }
if (tstCx(i, TIACxFlags.M0, TIACxFlags.P0)) { tabl[i] |= TIACxPairFlags.M0P0; }
if (tstCx(i, TIACxFlags.M1, TIACxFlags.P0)) { tabl[i] |= TIACxPairFlags.M1P0; }
if (tstCx(i, TIACxFlags.M1, TIACxFlags.P1)) { tabl[i] |= TIACxPairFlags.M1P1; }
if (tstCx(i, TIACxFlags.P0, TIACxFlags.PF)) { tabl[i] |= TIACxPairFlags.P0PF; }
if (tstCx(i, TIACxFlags.P0, TIACxFlags.BL)) { tabl[i] |= TIACxPairFlags.P0BL; }
if (tstCx(i, TIACxFlags.P1, TIACxFlags.PF)) { tabl[i] |= TIACxPairFlags.P1PF; }
if (tstCx(i, TIACxFlags.P1, TIACxFlags.BL)) { tabl[i] |= TIACxPairFlags.P1BL; }
if (tstCx(i, TIACxFlags.M0, TIACxFlags.PF)) { tabl[i] |= TIACxPairFlags.M0PF; }
if (tstCx(i, TIACxFlags.M0, TIACxFlags.BL)) { tabl[i] |= TIACxPairFlags.M0BL; }
if (tstCx(i, TIACxFlags.M1, TIACxFlags.PF)) { tabl[i] |= TIACxPairFlags.M1PF; }
if (tstCx(i, TIACxFlags.M1, TIACxFlags.BL)) { tabl[i] |= TIACxPairFlags.M1BL; }
if (tstCx(i, TIACxFlags.BL, TIACxFlags.PF)) { tabl[i] |= TIACxPairFlags.BLPF; }
if (tstCx(i, TIACxFlags.P0, TIACxFlags.P1)) { tabl[i] |= TIACxPairFlags.P0P1; }
if (tstCx(i, TIACxFlags.M0, TIACxFlags.M1)) { tabl[i] |= TIACxPairFlags.M0M1; }
}
return tabl;
}
