Added bitfields

autotest/autotest.bat

@@ -1,5 +1,8 @@
 rem @echo off
 
+@call :test bitfields.cpp
+@if %errorlevel% neq 0 goto :error
+
 @call :test opp_string.cpp
 @if %errorlevel% neq 0 goto :error
 

autotest/bitfields.cpp

@@ -0,0 +1,248 @@
+#include <assert.h>
+
+struct A
+{
+	char	x : 4;
+	char	y : 1;
+	char	z : 3;
+};
+
+A a = {7, 1, 2};
+
+void test_char_fit(void)
+{
+	assert(a.x == 7);
+	assert(a.y == 1);
+	assert(a.z == 2);
+	assert(sizeof(A) == 1);
+
+	for(int i=0; i<16; i++)
+	{
+		a.x = i;
+		a.y = 0;
+		a.z = 3;
+		assert(a.x == i);
+		assert(a.y == 0);
+		assert(a.z == 3);		
+	}
+}
+
+struct B
+{
+	char	x : 6;
+	char	y : 6;
+	char	z : 6;
+	char	w : 6;
+};
+
+B 	b = {11, 22, 33, 44};
+
+void test_char_cross(void)
+{
+	assert(b.x == 11);
+	assert(b.y == 22);
+	assert(b.z == 33);
+	assert(b.w == 44);
+	assert(sizeof(B) == 3);
+
+	for(int i=0; i<64; i++)
+	{
+		b.x = i * 1;
+		b.y = i * 3;
+		b.z = i * 5;
+		b.w = i * 7;
+		assert(b.x == ((i * 1) & 0x3f));
+		assert(b.y == ((i * 3) & 0x3f));
+		assert(b.z == ((i * 5) & 0x3f));		
+		assert(b.w == ((i * 7) & 0x3f));		
+	}
+}
+
+struct C
+{
+	unsigned	x : 4;
+	unsigned	y : 1;
+	unsigned	z : 3;
+};
+
+C c = {7, 1, 2};
+
+void test_word_fit(void)
+{
+	assert(c.x == 7);
+	assert(c.y == 1);
+	assert(c.z == 2);
+	assert(sizeof(C) == 1);
+
+	for(int i=0; i<16; i++)
+	{
+		c.x = i;
+		c.y = 0;
+		c.z = 3;
+		assert(c.x == i);
+		assert(c.y == 0);
+		assert(c.z == 3);		
+	}
+}
+
+struct D
+{
+	unsigned	x : 10;
+	unsigned	y : 10;
+	unsigned	z : 10;
+	unsigned	w : 10;
+};
+
+D 	d = {111, 222, 333, 444};
+
+void test_word_cross(void)
+{
+	assert(d.x == 111);
+	assert(d.y == 222);
+	assert(d.z == 333);
+	assert(d.w == 444);
+	assert(sizeof(D) == 5);
+
+	for(int i=0; i<1024; i++)
+	{
+		d.x = i * 1;
+		d.y = i * 3;
+		d.z = i * 5;
+		d.w = i * 7;
+		assert(d.x == ((i * 1) & 0x3ff));
+		assert(d.y == ((i * 3) & 0x3ff));
+		assert(d.z == ((i * 5) & 0x3ff));		
+		assert(d.w == ((i * 7) & 0x3ff));		
+	}
+}
+
+struct E
+{
+	unsigned long	x : 4;
+	unsigned long	y : 1;
+	unsigned long	z : 3;
+};
+
+E e = {7, 1, 2};
+
+void test_dword_fit(void)
+{
+	assert(e.x == 7);
+	assert(e.y == 1);
+	assert(e.z == 2);
+	assert(sizeof(E) == 1);
+
+	for(int i=0; i<16; i++)
+	{
+		e.x = i;
+		e.y = 0;
+		e.z = 3;
+		assert(e.x == i);
+		assert(e.y == 0);
+		assert(e.z == 3);		
+	}
+}
+
+struct F
+{
+	unsigned long	x : 20;
+	unsigned long	y : 20;
+	unsigned long	z : 20;
+	unsigned long	w : 20;
+};
+
+F 	f = {111111UL, 222222UL, 333333UL, 444444UL};
+
+void test_dword_cross(void)
+{
+	assert(f.x == 111111UL);
+	assert(f.y == 222222UL);
+	assert(f.z == 333333UL);
+	assert(f.w == 444444UL);
+	assert(sizeof(F) == 10);
+
+	for(int i=0; i<1024; i++)
+	{
+		f.x = i * 11UL;
+		f.y = i * 33UL;
+		f.z = i * 55UL;
+		f.w = i * 77UL;
+		assert(f.x == ((i * 11UL) & 0xfffffUL));
+		assert(f.y == ((i * 33UL) & 0xfffffUL));
+		assert(f.z == ((i * 55UL) & 0xfffffUL));		
+		assert(f.w == ((i * 77UL) & 0xfffffUL));		
+	}
+}
+
+struct G
+{
+	signed char x : 1;
+	signed char y : 5;
+	signed char z : 2;
+};
+
+G 	g = {0, -1, -2};
+
+void test_char_signed(void)
+{
+	assert(g.x ==  0);
+	assert(g.y == -1);
+	assert(g.z == -2);
+	assert(sizeof(G) == 1);
+
+	for(int i=-16; i<16; i++)
+	{
+		g.x = -1;
+		g.y = i;
+		g.z = 1;
+		assert(g.x == -1);
+		assert(g.y == i);
+		assert(g.z == 1);		
+	}
+}
+
+struct H
+{
+	int	x : 10;
+	int	y : 10;
+	int	z : 10;
+	int	w : 10;
+};
+
+H 	h = {111, -222, -333, 444};
+
+void test_word_signed(void)
+{
+	assert(h.x == 111);
+	assert(h.y == -222);
+	assert(h.z == -333);
+	assert(h.w == 444);
+	assert(sizeof(H) == 5);
+
+	for(int i=-32; i<32; i++)
+	{
+		h.x = i * 1;
+		h.y = i * 3;
+		h.z = i * 5;
+		h.w = i * 7;
+		assert(h.x == i * 1);
+		assert(h.y == i * 3);
+		assert(h.z == i * 5);		
+		assert(h.w == i * 7);		
+	}
+}
+
+
+int main(void)
+{
+	test_char_fit();
+	test_char_cross();
+	test_word_fit();
+	test_word_cross();
+	test_dword_fit();
+	test_dword_cross();
+	test_char_signed();
+	test_word_signed();
+
+	return 0;
+}

oscar64/ByteCodeGenerator.cpp

@@ -4246,8 +4246,8 @@ void ByteCodeBasicBlock::BinaryOperator(InterCodeProcedure* proc, const InterIns
 		case IA_SAR:
 		{
 			ByteCode	rbc = ByteCodeBinRegOperator(ins);
-
 			ByteCode	ibc = ByteCodeBinImmOperator(ins);
+
 			if (ins->mSrc[1].mTemp < 0)
 			{
 				IntConstToAccu(ins->mSrc[1].mIntConst);
@@ -4259,18 +4259,25 @@ void ByteCodeBasicBlock::BinaryOperator(InterCodeProcedure* proc, const InterIns
 			}
 			else if (ins->mSrc[0].mTemp < 0)
 			{
-				ByteCodeInstruction	lins(BC_LOAD_REG_16);
+				ByteCodeInstruction	lins(InterTypeSize[ins->mSrc[1].mType] == 1 ? BC_LOAD_REG_8 : BC_LOAD_REG_16);
 				lins.mRegister = BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp];
 				lins.mRegisterFinal = ins->mSrc[1].mFinal;
 				mIns.Push(lins);
 
+				if (ins->mOperator == IA_SAR && InterTypeSize[ins->mSrc[1].mType] == 1)
+				{
+					ByteCodeInstruction	xins(BC_CONV_I8_I16);
+					xins.mRegister = BC_REG_ACCU;
+					mIns.Push(xins);
+				}
+
 				ByteCodeInstruction	bins(ibc);
 				bins.mValue = int(ins->mSrc[0].mIntConst);
 				mIns.Push(bins);
 			}
 			else
 			{
-				ByteCodeInstruction	lins(BC_LOAD_REG_16);
+				ByteCodeInstruction	lins(InterTypeSize[ins->mSrc[1].mType] == 1 ? BC_LOAD_REG_8 : BC_LOAD_REG_16);
 				lins.mRegister = BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp];
 				lins.mRegisterFinal = ins->mSrc[1].mFinal && (ins->mSrc[1].mTemp != ins->mSrc[0].mTemp);;
 				mIns.Push(lins);

oscar64/Compiler.cpp

@@ -1236,7 +1236,7 @@ bool Compiler::WriteOutputFile(const char* targetPath, DiskImage * d64)
 	return true;
 }
 
-int Compiler::ExecuteCode(bool profile, bool trace)
+int Compiler::ExecuteCode(bool profile, int trace)
 {
 	Location	loc;
 
@@ -1249,12 +1249,12 @@ int Compiler::ExecuteCode(bool profile, bool trace)
 		memcpy(emu->mMemory + mLinker->mProgramStart, mLinker->mMemory + mLinker->mProgramStart, mLinker->mProgramEnd - mLinker->mProgramStart);
 		emu->mMemory[0x2d] = mLinker->mProgramEnd & 0xff;
 		emu->mMemory[0x2e] = mLinker->mProgramEnd >> 8;
-		ecode = emu->Emulate(2061, trace ? 2 : 0);
+		ecode = emu->Emulate(2061, trace);
 	}
 	else if (mCompilerOptions & COPT_TARGET_CRT)
 	{
 		memcpy(emu->mMemory + 0x8000, mLinker->mMemory + 0x0800, 0x4000);
-		ecode = emu->Emulate(0x8009, trace ? 2 : 0);
+		ecode = emu->Emulate(0x8009, trace);
 	}
 
 	printf("Emulation result %d\n", ecode);

oscar64/Compiler.h

@@ -44,7 +44,7 @@ public:
 	bool ParseSource(void);
 	bool GenerateCode(void);
 	bool WriteOutputFile(const char* targetPath, DiskImage * d64);
-	int ExecuteCode(bool profile, bool trace);
+	int ExecuteCode(bool profile, int trace);
 
 	void AddDefine(const Ident* ident, const char* value);
 

oscar64/Declaration.cpp

@@ -819,6 +819,8 @@ Expression* Expression::ConstantFold(Errors * errors, LinkerSection * dataSectio
 		dec->mBase = mLeft->mDecValue;
 		dec->mOffset = mDecValue->mOffset;
 		dec->mSize = mDecValue->mSize;
+		dec->mBits = mDecValue->mBits;
+		dec->mShift = mDecValue->mShift;
 		ex->mDecValue = dec;
 		ex->mDecType = mDecType;
 		return ex;
@@ -831,6 +833,8 @@ Expression* Expression::ConstantFold(Errors * errors, LinkerSection * dataSectio
 		dec->mBase = mLeft->mDecValue->mBase;
 		dec->mOffset = mLeft->mDecValue->mOffset + mDecValue->mOffset;
 		dec->mSize = mDecValue->mSize;
+		dec->mBits = mDecValue->mBits;
+		dec->mShift = mDecValue->mShift;
 		ex->mDecValue = dec;
 		ex->mDecType = mDecType;
 		return ex;
@@ -887,7 +891,8 @@ Declaration::Declaration(const Location& loc, DecType type)
 	mVTable(nullptr), mTemplate(nullptr),
 	mVarIndex(-1), mLinkerObject(nullptr), mCallers(nullptr), mCalled(nullptr), mAlignment(1), mFriends(nullptr),
 	mInteger(0), mNumber(0), mMinValue(-0x80000000LL), mMaxValue(0x7fffffffLL), mFastCallBase(0), mFastCallSize(0), mStride(0), mStripe(1),
-	mCompilerOptions(0), mUseCount(0), mTokens(nullptr), mParser(nullptr)
+	mCompilerOptions(0), mUseCount(0), mTokens(nullptr), mParser(nullptr),
+	mShift(0), mBits(0)
 {}
 
 Declaration::~Declaration(void)

oscar64/Declaration.h

@@ -29,9 +29,6 @@ enum DecType
 	DT_TYPE_ASSEMBLER,
 	DT_TYPE_AUTO,
 
-	DT_TYPE_CONST,
-	DT_TYPE_VOLATILE,
-
 	DT_CONST_INTEGER,
 	DT_CONST_FLOAT,
 	DT_CONST_FUNCTION,
@@ -264,6 +261,7 @@ public:
 	Expression*			mValue;
 	DeclarationScope*	mScope;
 	int					mOffset, mSize, mVarIndex, mNumVars, mComplexity, mLocalSize, mAlignment, mFastCallBase, mFastCallSize, mStride, mStripe;
+	uint8				mShift, mBits;
 	int64				mInteger, mMinValue, mMaxValue;
 	double				mNumber;
 	uint64				mFlags, mCompilerOptions;

oscar64/Emulator.cpp

@@ -649,7 +649,7 @@ int Emulator::Emulate(int startIP, int trace)
 				break;
 		}
 
-		if ((trace & 1) && ip == 0x0855)
+		if ((trace & 1) && ip == 0x0862)
 		{
 			unsigned	accu = mMemory[BC_REG_ACCU] + (mMemory[BC_REG_ACCU + 1] << 8) + (mMemory[BC_REG_ACCU + 2] << 16) + (mMemory[BC_REG_ACCU + 3] << 24);
 			int	ptr = mMemory[BC_REG_ADDR] + 256 * mMemory[BC_REG_ADDR + 1];

oscar64/Errors.h

@@ -83,6 +83,7 @@ enum ErrorID
 	EERR_NON_STATIC_MEMBER,
 	EERR_TEMPLATE_PARAMS,
 	EERR_FUNCTION_TEMPLATE,
+	EERR_INVALID_BITFIELD,
 
 	EERR_INVALID_CONSTEXPR,
 	EERR_DOUBLE_FREE,

oscar64/InterCode.cpp

@@ -643,6 +643,16 @@ static bool SameMem(const InterOperand& op, const InterInstruction* ins)
 		return false;
 }
 
+static bool SameMemAndSize(const InterOperand& op, const InterInstruction* ins)
+{
+	if (ins->mCode == IC_LOAD)
+		return SameMemAndSize(op, ins->mSrc[0]);
+	else if (ins->mCode == IC_STORE)
+		return SameMemAndSize(op, ins->mSrc[1]);
+	else
+		return false;
+}
+
 static bool SameInstruction(const InterInstruction* ins1, const InterInstruction* ins2)
 {
 	if (ins1->mCode == ins2->mCode && ins1->mNumOperands == ins2->mNumOperands)
@@ -7252,11 +7262,36 @@ void InterCodeBasicBlock::UpdateLocalIntegerRangeSets(const GrowingVariableArray
 				case IA_SHL:
 					if (ins->mSrc[0].mTemp < 0 && ins->mSrc[1].mTemp >= 0)
 					{
-						if (vr.mMinState == IntegerValueRange::S_BOUND)
-							ins->mSrc[1].mRange.LimitMin(vr.mMinValue >> ins->mSrc[0].mIntConst);
-						if (vr.mMaxState == IntegerValueRange::S_BOUND)
-							ins->mSrc[1].mRange.LimitMax(vr.mMaxValue >> ins->mSrc[0].mIntConst);
-						mReverseValueRange[ins->mSrc[1].mTemp].Limit(ins->mSrc[1].mRange);
+						if (ins->mDst.mType == IT_INT16)
+						{
+							if (vr.mMinState == IntegerValueRange::S_BOUND && vr.mMinValue >= -0x4000 &&
+								vr.mMaxState == IntegerValueRange::S_BOUND && vr.mMaxValue < 0x4000)
+							{
+								ins->mSrc[1].mRange.LimitMin(vr.mMinValue >> ins->mSrc[0].mIntConst);
+								ins->mSrc[1].mRange.LimitMax(vr.mMaxValue >> ins->mSrc[0].mIntConst);
+								mReverseValueRange[ins->mSrc[1].mTemp].Limit(ins->mSrc[1].mRange);
+							}
+						}
+						else if (ins->mDst.mType == IT_INT8)
+						{
+							if (vr.mMinState == IntegerValueRange::S_BOUND && vr.mMinValue >= -0x40 &&
+								vr.mMaxState == IntegerValueRange::S_BOUND && vr.mMaxValue < 0x40)
+							{
+								ins->mSrc[1].mRange.LimitMin(vr.mMinValue >> ins->mSrc[0].mIntConst);
+								ins->mSrc[1].mRange.LimitMax(vr.mMaxValue >> ins->mSrc[0].mIntConst);
+								mReverseValueRange[ins->mSrc[1].mTemp].Limit(ins->mSrc[1].mRange);
+							}
+						}
+						else if (ins->mDst.mType == IT_INT32)
+						{
+							if (vr.mMinState == IntegerValueRange::S_BOUND && vr.mMinValue >= -0x40000000 &&
+								vr.mMaxState == IntegerValueRange::S_BOUND && vr.mMaxValue < 0x40000000)
+							{
+								ins->mSrc[1].mRange.LimitMin(vr.mMinValue >> ins->mSrc[0].mIntConst);
+								ins->mSrc[1].mRange.LimitMax(vr.mMaxValue >> ins->mSrc[0].mIntConst);
+								mReverseValueRange[ins->mSrc[1].mTemp].Limit(ins->mSrc[1].mRange);
+							}
+						}
 					}
 					break;
 				case IA_SUB:
@@ -8559,6 +8594,72 @@ bool InterCodeBasicBlock::RemoveUnusedStoreInstructions(const GrowingVariableArr
 
 }
 
+bool InterCodeBasicBlock::RemoveUnusedIndirectStoreInstructions(void)
+{
+	bool	changed = false;
+
+	if (!mVisited)
+	{
+		mVisited = true;
+
+		ExpandingArray<InterInstructionPtr>		stores;
+
+		for (int i = mInstructions.Size() - 1; i >= 0; i--)
+		{
+			InterInstruction* ins = mInstructions[i];
+
+			if (ins->mCode == IC_STORE)
+			{
+				int j = 0;
+				while (j < stores.Size() && !SameMemAndSize(ins->mSrc[1], stores[j]->mSrc[1]))
+					j++;
+
+				if (j < stores.Size())
+				{
+					if (ins->mVolatile)
+						stores[j] = ins;
+					else
+					{
+						ins->mCode = IC_NONE;
+						ins->mNumOperands = 0;
+					}
+				}
+				else
+				{
+					j = 0;
+					while (j < stores.Size())
+					{
+						if (CollidingMem(ins, stores[j]))
+							stores.Remove(j);
+						else
+							j++;
+					}
+					stores.Push(ins);
+				}
+			}
+			else
+			{
+				int j = 0;
+				while (j < stores.Size())
+				{
+					if (CollidingMem(ins, stores[j]) || ins->mDst.mTemp >= 0 && ins->mDst.mTemp == stores[j]->mSrc[1].mTemp)
+						stores.Remove(j);
+					else
+						j++;
+				}
+			}
+		}
+
+		if (mTrueJump && mTrueJump->RemoveUnusedIndirectStoreInstructions())
+			changed = true;
+		if (mFalseJump && mFalseJump->RemoveUnusedIndirectStoreInstructions())
+			changed = true;
+	}
+
+	return changed;
+}
+
+
 bool InterCodeBasicBlock::EliminateAliasValues(const GrowingInstructionPtrArray& tvalue, const GrowingInstructionPtrArray& avalue)
 {
 	bool	changed = false;
@@ -9867,7 +9968,7 @@ bool InterCodeBasicBlock::LoadStoreForwarding(const GrowingInstructionPtrArray&
 							if (ins->mCode == IC_LOAD)
 							{
 								j = 0;
-								while (j < tvalue.Size() && !SameMem(ins->mSrc[0], tvalue[j]))
+								while (j < tvalue.Size() && !SameMemAndSize(ins->mSrc[0], tvalue[j]))
 									j++;
 								if (j < tvalue.Size())
 								{
@@ -9880,7 +9981,7 @@ bool InterCodeBasicBlock::LoadStoreForwarding(const GrowingInstructionPtrArray&
 							else if (ins->mCode == IC_STORE)
 							{
 								j = 0;
-								while (j < tvalue.Size() && !SameMem(ins->mSrc[1], tvalue[j]))
+								while (j < tvalue.Size() && !SameMemAndSize(ins->mSrc[1], tvalue[j]))
 									j++;
 								if (j < tvalue.Size())
 								{
@@ -9945,7 +10046,7 @@ bool InterCodeBasicBlock::LoadStoreForwarding(const GrowingInstructionPtrArray&
 				if (!ins->mVolatile)
 				{
 					int	j = 0;
-					while (j < mLoadStoreInstructions.Size() && !SameMem(ins->mSrc[0], mLoadStoreInstructions[j]))
+					while (j < mLoadStoreInstructions.Size() && !SameMemAndSize(ins->mSrc[0], mLoadStoreInstructions[j]))
 						j++;
 					if (j < mLoadStoreInstructions.Size())
 					{
@@ -9986,7 +10087,7 @@ bool InterCodeBasicBlock::LoadStoreForwarding(const GrowingInstructionPtrArray&
 			{
 				int	j = 0, k = 0;
 
-				while (j < mLoadStoreInstructions.Size() && !SameMem(ins->mSrc[1], mLoadStoreInstructions[j]))
+				while (j < mLoadStoreInstructions.Size() && !SameMemAndSize(ins->mSrc[1], mLoadStoreInstructions[j]))
 					j++;
 
 				if (!ins->mVolatile && j < mLoadStoreInstructions.Size() && mLoadStoreInstructions[j]->mCode == IC_LOAD && ins->mSrc[0].mTemp == mLoadStoreInstructions[j]->mDst.mTemp)
@@ -14541,7 +14642,6 @@ bool InterCodeBasicBlock::PeepholeReplaceOptimization(const GrowingVariableArray
 					int64	mshift = mInstructions[i + 1]->mSrc[0].mIntConst;
 
 					mInstructions[i + 0]->mOperator = IA_AND;
-					mInstructions[i + 0]->mSrc[0].mType = IT_INT16;
 					mInstructions[i + 0]->mSrc[0].mType = mInstructions[i + 1]->mSrc[0].mType;
 
 					switch (mInstructions[i + 0]->mSrc[1].mType)
@@ -14584,6 +14684,61 @@ bool InterCodeBasicBlock::PeepholeReplaceOptimization(const GrowingVariableArray
 				}
 			}
 #endif
+#if 1
+			else if (
+				mInstructions[i + 0]->mCode == IC_BINARY_OPERATOR && mInstructions[i + 0]->mOperator == IA_SHL && mInstructions[i + 0]->mSrc[0].mTemp < 0 &&
+				mInstructions[i + 1]->mCode == IC_BINARY_OPERATOR && mInstructions[i + 1]->mOperator == IA_SHR && mInstructions[i + 1]->mSrc[0].mTemp < 0 &&
+				mInstructions[i + 1]->mSrc[1].mTemp == mInstructions[i + 0]->mDst.mTemp && mInstructions[i + 1]->mSrc[1].mFinal)
+			{
+
+				int64	shift = mInstructions[i + 0]->mSrc[0].mIntConst;
+				if (shift & 7)
+				{
+					int64	mshift = mInstructions[i + 1]->mSrc[0].mIntConst;
+
+					mInstructions[i + 0]->mOperator = IA_AND;
+					mInstructions[i + 0]->mSrc[0].mType = mInstructions[i + 1]->mSrc[0].mType;
+
+					switch (mInstructions[i + 0]->mSrc[1].mType)
+					{
+					case IT_INT8:
+						mInstructions[i + 0]->mSrc[0].mIntConst = 0xffu >> shift;
+						break;
+					case IT_INT16:
+						mInstructions[i + 0]->mSrc[0].mIntConst = 0xffffu >> shift;
+						break;
+					case IT_INT32:
+						mInstructions[i + 0]->mSrc[0].mIntConst = 0xffffffffu >> shift;
+						break;
+					}
+
+					if (shift > mshift && mInstructions[i + 0]->mDst.mType > mInstructions[i + 1]->mSrc[1].mType)
+					{
+						mInstructions[i + 1]->mSrc[1].mType = mInstructions[i + 0]->mDst.mType;
+						mInstructions[i + 1]->mDst.mType = mInstructions[i + 0]->mDst.mType;
+					}
+
+					if (shift > mshift)
+					{
+						mInstructions[i + 1]->mOperator = IA_SHL;
+						mInstructions[i + 1]->mSrc[0].mIntConst = shift - mshift;
+					}
+					else if (shift < mshift)
+					{
+						mInstructions[i + 1]->mOperator = IA_SHR;
+						mInstructions[i + 1]->mSrc[0].mIntConst = mshift - shift;
+					}
+					else
+					{
+						mInstructions[i + 0]->mDst = mInstructions[i + 1]->mDst;
+						mInstructions[i + 1]->mCode = IC_NONE;
+						mInstructions[i + 1]->mNumOperands = 0;
+					}
+
+					changed = true;
+				}
+			}
+#endif
 #if 1
 			else if (
 				mInstructions[i + 0]->mCode == IC_LOAD_TEMPORARY &&
@@ -16507,6 +16662,11 @@ void InterCodeProcedure::RemoveUnusedStoreInstructions(InterMemory	paramMemory)
 
 			DisassembleDebug("removed unused static stores");
 		}
+
+		// Remove unused indirect stores
+
+		ResetVisited();
+		mEntryBlock->RemoveUnusedIndirectStoreInstructions();
 	}
 }
 
@@ -16921,7 +17081,7 @@ void InterCodeProcedure::Close(void)
 {
 	GrowingTypeArray	tstack(IT_NONE);
 
-	CheckFunc = !strcmp(mIdent->mString, "main");
+	CheckFunc = !strcmp(mIdent->mString, "test");
 
 	mEntryBlock = mBlocks[0];
 

oscar64/InterCode.h

@@ -428,6 +428,7 @@ public:
 	void BuildGlobalProvidedVariableSet(const GrowingVariableArray& localVars, NumberSet fromProvidedVars, const GrowingVariableArray& params, NumberSet fromProvidedParams, InterMemory paramMemory);
 	bool BuildGlobalRequiredVariableSet(const GrowingVariableArray& localVars, NumberSet& fromRequiredVars, const GrowingVariableArray& params, NumberSet& fromRequiredParams, InterMemory paramMemory);
 	bool RemoveUnusedStoreInstructions(const GrowingVariableArray& localVars, const GrowingVariableArray& params, InterMemory paramMemory);
+	bool RemoveUnusedIndirectStoreInstructions(void);
 
 	void BuildStaticVariableSet(const GrowingVariableArray& staticVars);
 	void BuildGlobalProvidedStaticVariableSet(const GrowingVariableArray& staticVars, NumberSet fromProvidedVars);

oscar64/InterCodeGenerator.cpp

@@ -68,16 +68,220 @@ InterCodeGenerator::ExValue InterCodeGenerator::Dereference(InterCodeProcedure*
 			ins->mDst.mRange.LimitMin(v.mType->mMinValue);
 			ins->mDst.mRange.LimitMax(v.mType->mMaxValue);
 		}
+
 		if (v.mType->mFlags & DTF_VOLATILE)
 			ins->mVolatile = true;
 		block->Append(ins);
 
-		v = ExValue(v.mType, ins->mDst.mTemp, v.mReference - 1);
+		if (v.mReference == 1 && v.mBits)
+		{
+			if (v.mBits + v.mShift <= 8)
+				ins->mDst.mType = IT_INT8;
+			else if (v.mBits + v.mShift <= 16)
+				ins->mDst.mType = IT_INT16;
+			else
+				ins->mDst.mType = IT_INT32;
+
+			ins->mSrc[0].mOperandSize = InterTypeSize[ins->mDst.mType];
+			int nbits = ins->mSrc[0].mOperandSize * 8;
+
+			InterInstruction* clsins = new InterInstruction(exp->mLocation, IC_CONSTANT);
+			clsins->mDst.mType = IT_INT8;
+			clsins->mDst.mTemp = proc->AddTemporary(clsins->mDst.mType);
+			clsins->mConst.mType = IT_INT8;
+			clsins->mConst.mIntConst = nbits - v.mShift - v.mBits;
+			clsins->mNumOperands = 0;
+			block->Append(clsins);
+
+			InterInstruction* crsins = new InterInstruction(exp->mLocation, IC_CONSTANT);
+			crsins->mDst.mType = IT_INT8;
+			crsins->mDst.mTemp = proc->AddTemporary(crsins->mDst.mType);
+			crsins->mConst.mType = IT_INT8;
+			crsins->mConst.mIntConst = nbits - v.mBits;
+			crsins->mNumOperands = 0;
+			block->Append(crsins);
+
+			InterInstruction* slins = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);
+			slins->mOperator = IA_SHL;
+			slins->mDst.mType = ins->mDst.mType;
+			slins->mDst.mTemp = proc->AddTemporary(slins->mDst.mType);
+			slins->mSrc[1] = ins->mDst;
+			slins->mSrc[0] = clsins->mDst;
+			slins->mNumOperands = 2;
+			block->Append(slins);
+
+			InterInstruction* srins = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);
+			srins->mOperator = (v.mType->mFlags & DTF_SIGNED) ? IA_SAR : IA_SHR;
+			srins->mDst.mType = ins->mDst.mType;
+			srins->mDst.mTemp = proc->AddTemporary(slins->mDst.mType);
+			srins->mSrc[1] = slins->mDst;
+			srins->mSrc[0] = crsins->mDst;
+			srins->mNumOperands = 2;
+			block->Append(srins);
+
+			if (InterTypeSize[ins->mDst.mType] < v.mType->mSize)
+			{
+				InterInstruction* crins = new InterInstruction(exp->mLocation, IC_CONVERSION_OPERATOR);
+				crins->mDst.mType = InterTypeOf(v.mType);
+				crins->mDst.mTemp = proc->AddTemporary(crins->mDst.mType);
+				crins->mSrc[0] = srins->mDst;
+				crins->mNumOperands = 1;
+				if (ins->mDst.mType == IT_INT16)
+					crins->mOperator = (v.mType->mFlags & DTF_SIGNED) ? IA_EXT16TO32S : IA_EXT16TO32U;
+				else if (v.mType->mSize == 2)
+					crins->mOperator = (v.mType->mFlags & DTF_SIGNED) ? IA_EXT8TO16S : IA_EXT8TO16U;
+				else
+					crins->mOperator = (v.mType->mFlags & DTF_SIGNED) ? IA_EXT8TO32S : IA_EXT8TO32U;
+				block->Append(crins);
+				v = ExValue(v.mType, crins->mDst.mTemp, v.mReference - 1);
+			}
+			else
+				v = ExValue(v.mType, srins->mDst.mTemp, v.mReference - 1);
+		}
+		else
+			v = ExValue(v.mType, ins->mDst.mTemp, v.mReference - 1, v.mBits, v.mShift);
 	}
 
 	return v;
 }
 
+void InterCodeGenerator::StoreValue(InterCodeProcedure* proc, Expression* exp, InterCodeBasicBlock*& block, ExValue vl, ExValue vr)
+{
+	// Bitfield assignment
+	if (vl.mBits)
+	{
+		InterType	itype;
+
+		if (vl.mBits + vl.mShift <= 8)
+			itype = IT_INT8;
+		else if (vl.mBits + vl.mShift <= 16)
+			itype = IT_INT16;
+		else
+			itype = IT_INT32;
+
+		int nbits = InterTypeSize[itype] * 8;
+
+		InterInstruction* lins = new InterInstruction(exp->mLocation, IC_LOAD);
+		lins->mDst.mType = itype;
+		lins->mDst.mTemp = proc->AddTemporary(lins->mDst.mType);
+		lins->mSrc[0].mMemory = IM_INDIRECT;
+		lins->mSrc[0].mType = IT_POINTER;
+		lins->mSrc[0].mTemp = vl.mTemp;
+		lins->mSrc[0].mOperandSize = InterTypeSize[itype];
+		lins->mVolatile = vl.mType->mFlags & DTF_VOLATILE;
+		lins->mNumOperands = 1;
+		block->Append(lins);
+
+		InterInstruction* csins = new InterInstruction(exp->mLocation, IC_CONSTANT);
+		csins->mDst.mType = IT_INT8;
+		csins->mDst.mTemp = proc->AddTemporary(csins->mDst.mType);
+		csins->mConst.mType = IT_INT8;
+		csins->mConst.mIntConst = vl.mShift;
+		csins->mNumOperands = 0;
+		block->Append(csins);
+
+		InterInstruction* cmsins = new InterInstruction(exp->mLocation, IC_CONSTANT);
+		cmsins->mDst.mType = itype;
+		cmsins->mDst.mTemp = proc->AddTemporary(cmsins->mDst.mType);
+		cmsins->mConst.mType = itype;
+		cmsins->mConst.mIntConst = ((1 << vl.mBits) - 1) << vl.mShift;
+		cmsins->mNumOperands = 0;
+		block->Append(cmsins);
+
+		InterInstruction* cmlins = new InterInstruction(exp->mLocation, IC_CONSTANT);
+		cmlins->mDst.mType = itype;
+		cmlins->mDst.mTemp = proc->AddTemporary(cmlins->mDst.mType);
+		cmlins->mConst.mType = itype;
+		cmlins->mConst.mIntConst = ~cmsins->mConst.mIntConst;
+		cmlins->mNumOperands = 0;
+		block->Append(cmlins);
+
+		int	rtemp = vr.mTemp;
+
+		if (InterTypeSize[itype] > vr.mType->mSize)
+		{
+			InterInstruction* cins = new InterInstruction(exp->mLocation, IC_CONVERSION_OPERATOR);
+
+			if (InterTypeSize[itype] == 2)
+				cins->mOperator = IA_EXT8TO16U;
+			else if (vr.mType->mSize == 1)
+				cins->mOperator = IA_EXT8TO32U;
+			else
+				cins->mOperator = IA_EXT8TO16U;
+
+			cins->mDst.mType = itype;
+			cins->mDst.mTemp = proc->AddTemporary(itype);
+			cins->mSrc[0].mTemp = rtemp;
+			cins->mSrc[0].mType = InterTypeOf(vr.mType);
+			block->Append(cins);
+
+			rtemp = cins->mDst.mTemp;
+		}
+
+		InterInstruction* sins = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);
+		sins->mOperator = IA_SHL;
+		sins->mDst.mType = itype;
+		sins->mDst.mTemp = proc->AddTemporary(sins->mDst.mType);
+		sins->mSrc[1].mTemp = rtemp;
+		sins->mSrc[1].mType = itype;
+		sins->mSrc[0] = csins->mDst;
+		sins->mNumOperands = 2;
+		block->Append(sins);
+
+		InterInstruction* msins = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);
+		msins->mOperator = IA_AND;
+		msins->mDst.mType = itype;
+		msins->mDst.mTemp = proc->AddTemporary(msins->mDst.mType);
+		msins->mSrc[0] = sins->mDst;
+		msins->mSrc[1] = cmsins->mDst;
+		msins->mNumOperands = 2;
+		block->Append(msins);
+
+		InterInstruction* mlins = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);
+		mlins->mOperator = IA_AND;
+		mlins->mDst.mType = itype;
+		mlins->mDst.mTemp = proc->AddTemporary(mlins->mDst.mType);
+		mlins->mSrc[0] = lins->mDst;
+		mlins->mSrc[1] = cmlins->mDst;
+		mlins->mNumOperands = 2;
+		block->Append(mlins);
+
+		InterInstruction* oins = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);
+		oins->mOperator = IA_OR;
+		oins->mDst.mType = itype;
+		oins->mDst.mTemp = proc->AddTemporary(oins->mDst.mType);
+		oins->mSrc[0] = msins->mDst;
+		oins->mSrc[1] = mlins->mDst;
+		oins->mNumOperands = 2;
+		block->Append(oins);
+
+		InterInstruction* ins = new InterInstruction(exp->mLocation, IC_STORE);
+		ins->mSrc[1].mMemory = IM_INDIRECT;
+		ins->mSrc[0] = oins->mDst;
+		ins->mSrc[1].mType = IT_POINTER;
+		ins->mSrc[1].mTemp = vl.mTemp;
+		ins->mSrc[1].mOperandSize = InterTypeSize[itype];
+		ins->mVolatile = vl.mType->mFlags & DTF_VOLATILE;
+		ins->mNumOperands = 2;
+		block->Append(ins);
+	}
+	else
+	{
+		InterInstruction* ins = new InterInstruction(exp->mLocation, IC_STORE);
+
+		ins->mSrc[1].mMemory = IM_INDIRECT;
+		ins->mSrc[0].mType = InterTypeOf(vr.mType);
+		ins->mSrc[0].mTemp = vr.mTemp;
+		ins->mSrc[1].mType = IT_POINTER;
+		ins->mSrc[1].mTemp = vl.mTemp;
+		ins->mSrc[1].mOperandSize = vl.mType->mSize;
+		ins->mSrc[1].mStride = vl.mType->mStripe;
+		ins->mVolatile = vl.mType->mFlags & DTF_VOLATILE;
+		ins->mNumOperands = 2;
+		block->Append(ins);
+	}
+}
+
 InterCodeGenerator::ExValue InterCodeGenerator::CoerceType(InterCodeProcedure* proc, Expression* exp, InterCodeBasicBlock*& block, ExValue v, Declaration* type, bool checkTrunc)
 {
 	int		stemp = v.mTemp;
@@ -1713,6 +1917,8 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			ins->mConst.mOperandSize = dec->mSize;
 			ins->mConst.mIntConst = dec->mOffset;
 
+			int	lbits = dec->mBits, lshift = dec->mShift;
+
 			if (dec->mType == DT_VARIABLE_REF)
 				dec = dec->mBase;
 
@@ -1779,13 +1985,13 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			if (exp->mDecType->IsReference())
 				return ExValue(exp->mDecType->mBase, ins->mDst.mTemp, ref + 1);
 			else
-				return ExValue(exp->mDecType, ins->mDst.mTemp, ref);
+				return ExValue(exp->mDecType, ins->mDst.mTemp, ref, lbits, lshift);
 		}
 
 
 		case EX_ASSIGNMENT:
 		case EX_INITIALIZATION:
-			{
+		{
 			if (exp->mLeft->mDecType && exp->mLeft->mDecType->mType == DT_TYPE_STRUCT)
 			{
 				vl = TranslateExpression(procType, proc, block, exp->mLeft, destack, breakBlock, continueBlock, inlineMapper);
@@ -1902,8 +2108,6 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 				if (vl.mReference != 1)
 					mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not a left hand expression");
 
-				InterInstruction	*	ins = new InterInstruction(exp->mLocation, IC_STORE);
-
 				if (exp->mToken != TK_ASSIGN)
 				{
 					ExValue	vll = Dereference(proc, exp, block, vl);
@@ -2043,17 +2247,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 					vr = CoerceType(proc, exp, block, vr, vl.mType);
 				}
 
-				ins->mCode = IC_STORE;
-				ins->mSrc[1].mMemory = IM_INDIRECT;
-				ins->mSrc[0].mType = InterTypeOf(vr.mType);
-				ins->mSrc[0].mTemp = vr.mTemp;
-				ins->mSrc[1].mType = IT_POINTER;
-				ins->mSrc[1].mTemp = vl.mTemp;
-				ins->mSrc[1].mOperandSize = vl.mType->mSize;
-				ins->mSrc[1].mStride = vl.mType->mStripe;
-				ins->mVolatile = vl.mType->mFlags & DTF_VOLATILE;
-				ins->mNumOperands = 2;
-				block->Append(ins);
+				StoreValue(proc, exp, block, vl, vr);
 			}
 			}
 
@@ -2151,7 +2345,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			ains->mDst.mTemp = proc->AddTemporary(ains->mDst.mType);
 			block->Append(ains);
 
-			return ExValue(exp->mDecValue->mBase, ains->mDst.mTemp, 1);
+			return ExValue(exp->mDecValue->mBase, ains->mDst.mTemp, 1, exp->mDecValue->mBits, exp->mDecValue->mShift);
 		}
 
 		case EX_BINARY:
@@ -2483,7 +2677,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			if (vl.mType->mFlags & DTF_CONST)
 				mErrors->Error(exp->mLocation, EERR_CONST_ASSIGN, "Cannot change const value");
 
-			InterInstruction	*	cins = new InterInstruction(exp->mLocation, IC_CONSTANT), *	ains = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR), *	sins = new InterInstruction(exp->mLocation, IC_STORE);
+			InterInstruction* cins = new InterInstruction(exp->mLocation, IC_CONSTANT), * ains = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);// , * sins = new InterInstruction(exp->mLocation, IC_STORE);
 
 			ExValue	vdl = Dereference(proc, exp, block, vl);
 
@@ -2524,6 +2718,8 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			ains->mDst.mTemp = proc->AddTemporary(ains->mDst.mType);
 			block->Append(ains);
 
+			StoreValue(proc, exp, block, vl, ExValue(vl.mType, ains->mDst.mTemp));
+#if 0
 			sins->mSrc[1].mMemory = IM_INDIRECT;
 			sins->mSrc[0].mType = ains->mDst.mType;
 			sins->mSrc[0].mTemp = ains->mDst.mTemp;
@@ -2532,6 +2728,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			sins->mSrc[1].mOperandSize = vl.mType->mSize;
 			sins->mVolatile = vl.mType->mFlags & DTF_VOLATILE;
 			block->Append(sins);
+#endif
 
 			// Return reference to value
 			return ExValue(vl.mType, vl.mTemp, 1);
@@ -2550,7 +2747,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			if (vl.mType->mFlags & DTF_CONST)
 				mErrors->Error(exp->mLocation, EERR_CONST_ASSIGN, "Cannot change const value");
 
-			InterInstruction	*	cins = new InterInstruction(exp->mLocation, IC_CONSTANT), *	ains = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR), *	sins = new InterInstruction(exp->mLocation, IC_STORE);
+			InterInstruction* cins = new InterInstruction(exp->mLocation, IC_CONSTANT), * ains = new InterInstruction(exp->mLocation, IC_BINARY_OPERATOR);// , * sins = new InterInstruction(exp->mLocation, IC_STORE);
 
 			ExValue	vdl = Dereference(proc, exp, block, vl);
 
@@ -2590,6 +2787,8 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			ains->mDst.mTemp = proc->AddTemporary(ttype);
 			block->Append(ains);
 
+			StoreValue(proc, exp, block, vl, ExValue(vl.mType, ains->mDst.mTemp));
+#if 0
 			sins->mSrc[1].mMemory = IM_INDIRECT;
 			sins->mSrc[0].mType = ains->mDst.mType;
 			sins->mSrc[0].mTemp = ains->mDst.mTemp;
@@ -2598,7 +2797,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 			sins->mSrc[1].mOperandSize = vl.mType->mSize;
 			sins->mVolatile = vl.mType->mFlags & DTF_VOLATILE;
 			block->Append(sins);
-
+#endif
 			return ExValue(vdl.mType, vdl.mTemp);
 		}
 		break;
@@ -2642,7 +2841,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 				return ExValue(vl.mType->mBase, vl.mTemp, vl.mReference + 1);
 			case TK_BINARY_AND:
 			{
-				if (vl.mReference < 1)
+				if (vl.mReference < 1 || vl.mBits)
 					mErrors->Error(exp->mLocation, EERR_NOT_AN_LVALUE, "Not an addressable value");
 
 				Declaration* dec = new Declaration(exp->mLocation, DT_TYPE_POINTER);
@@ -4582,10 +4781,38 @@ void InterCodeGenerator::BuildInitializer(InterCodeModule * mod, uint8* dp, int
 	else if (data->mType == DT_CONST_INTEGER)
 	{
 		int64	t = data->mInteger;
-		for (int i = 0; i < data->mBase->mSize; i++)
+		if (data->mBits)
 		{
-			dp[offset + i * data->mBase->mStripe] = uint8(t & 0xff);
-			t >>= 8;
+			if (data->mBits + data->mShift <= 8)
+			{
+				uint8	mask = uint8(((1 << data->mBits) - 1) << data->mShift);
+				dp[offset] = (dp[offset] & ~mask) | (uint8(t << data->mShift) & mask);
+			}
+			else if (data->mBits + data->mShift <= 16)
+			{
+				uint16	mask = uint16(((1 << data->mBits) - 1) << data->mShift);
+
+				dp[offset + 0] = (dp[offset + 0] & ~(mask & 0xff)) | (uint8(t << data->mShift) & (mask & 0xff));
+				dp[offset + 1] = (dp[offset + 1] & ~(mask >> 8)) | (uint8(t >> (8 - data->mShift)) & (mask >> 8));
+			}
+			else
+			{
+				uint32	mask = uint32(((1 << data->mBits) - 1) << data->mShift);
+				t = (t << data->mShift) & mask;
+
+				dp[offset + 0] = (dp[offset + 0] & ~(mask & 0xff)) | (uint8(t      ));
+				dp[offset + 1] = (dp[offset + 1] & ~(mask >> 8))   | (uint8(t >>  8));
+				dp[offset + 2] = (dp[offset + 2] & ~(mask >> 16))  | (uint8(t >> 16));
+				dp[offset + 3] = (dp[offset + 3] & ~(mask >> 24))  | (uint8(t >> 24));
+			}
+		}
+		else
+		{
+			for (int i = 0; i < data->mBase->mSize; i++)
+			{
+				dp[offset + i * data->mBase->mStripe] = uint8(t & 0xff);
+				t >>= 8;
+			}
 		}
 	}
 	else if (data->mType == DT_CONST_ADDRESS)

oscar64/InterCodeGenerator.h

@@ -21,9 +21,10 @@ public:
 	{
 		Declaration* mType;
 		int		mTemp, mReference;
+		int		mBits, mShift;
 
-		ExValue(Declaration* type = nullptr, int temp = -1, int reference = 0)
-			: mType(type), mTemp(temp), mReference(reference)
+		ExValue(Declaration* type = nullptr, int temp = -1, int reference = 0, int bits = 0, int shift = 0)
+			: mType(type), mTemp(temp), mReference(reference), mBits(bits), mShift(shift)
 		{}
 	};
 
@@ -86,6 +87,7 @@ protected:
 	void TranslateLogic(Declaration* procType, InterCodeProcedure* proc, InterCodeBasicBlock* block, InterCodeBasicBlock* tblock, InterCodeBasicBlock* fblock, Expression* exp, DestructStack*& destack, InlineMapper* inlineMapper);
 	ExValue TranslateInline(Declaration* procType, InterCodeProcedure* proc, InterCodeBasicBlock*& block, Expression* exp, const BranchTarget& breakBlock, const BranchTarget& continueBlock, InlineMapper* inlineMapper, bool inlineConstexpr, ExValue* lrexp);
 	void CopyStruct(InterCodeProcedure* proc, Expression* exp, InterCodeBasicBlock*& block, ExValue vl, ExValue vr, InlineMapper* inlineMapper, bool moving);
+	void StoreValue(InterCodeProcedure* proc, Expression* exp, InterCodeBasicBlock*& block, ExValue vl, ExValue vr);
 
 	void UnwindDestructStack(Declaration* procType, InterCodeProcedure* proc, InterCodeBasicBlock*& block, DestructStack* stack, DestructStack * bottom, InlineMapper* inlineMapper);
 	void BuildInitializer(InterCodeModule* mod, uint8 * dp, int offset, Declaration* data, InterVariable * variable);

oscar64/NativeCodeGenerator.cpp

@@ -9788,7 +9788,7 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 				int sreg = BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp];
 
 				int	shift = ins->mSrc[0].mIntConst & 15;
-				if (ins->mDst.IsUByte())
+				if (ins->mDst.IsUByte() || InterTypeSize[ins->mDst.mType] == 1)
 				{
 					if (shift == 0)
 					{
@@ -9834,8 +9834,11 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg));
 					}
 
-					mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
-					mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+					if (InterTypeSize[ins->mDst.mType] > 1)
+					{
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+					}
 				}
 				else
 				{
@@ -10045,7 +10048,7 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 			{
 				int	shift = ins->mSrc[0].mIntConst & 15;
 #if 1
-				if (ins->mSrc[1].IsUByte())
+				if (ins->mSrc[1].IsUByte() || InterTypeSize[ins->mSrc[1].mType] == 1)
 				{
 					if (shift == 0)
 					{
@@ -10053,8 +10056,11 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 						{
 							mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp]));
 							mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg));
-							mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
-							mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+							if (InterTypeSize[ins->mDst.mType] > 1)
+							{
+								mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
+								mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+							}
 						}
 					}
 					else if (shift == 7)
@@ -10062,7 +10068,8 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp]));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_ASL, ASMIM_IMPLIED));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
-						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+						if (InterTypeSize[ins->mDst.mType] > 1)
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_ROL, ASMIM_IMPLIED));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
 					}
@@ -10074,14 +10081,18 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_ROL, ASMIM_IMPLIED));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_AND, ASMIM_IMMEDIATE, 3));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
-						mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
-						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+						if (InterTypeSize[ins->mDst.mType] > 1)
+						{
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+						}
 					}
 					else if (shift >= 8)
 					{
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
-						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+						if (InterTypeSize[ins->mDst.mType] > 1)
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
 					}
 					else
 					{
@@ -10089,8 +10100,11 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 						for (int i = 0; i < shift; i++)
 							mIns.Push(NativeCodeInstruction(ins, ASMIT_LSR, ASMIM_IMPLIED));
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
-						mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
-						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+						if (InterTypeSize[ins->mDst.mType] > 1)
+						{
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, 0));
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
+						}
 					}
 				}
 				else
@@ -10377,6 +10391,33 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
 						mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
 					}
 				}
+				else if (InterTypeSize[ins->mDst.mType] == 1)
+				{
+					mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp]));
+
+					if (shift > 5)
+					{
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_ASL, ASMIM_IMPLIED));
+						for (int i = shift; i < 8; i++)
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_ROL, ASMIM_IMPLIED));
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_AND, ASMIM_IMMEDIATE, 0xff >> shift));
+
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80 >> shift));
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_SEC, ASMIM_IMPLIED));
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_SBC, ASMIM_IMMEDIATE, 0x80 >> shift));
+					}
+					else if (shift > 0)
+					{
+						for (int i = 0; i < shift; i++)
+							mIns.Push(NativeCodeInstruction(ins, ASMIT_LSR, ASMIM_IMPLIED));
+
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80 >> shift));
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_SEC, ASMIM_IMPLIED));
+						mIns.Push(NativeCodeInstruction(ins, ASMIT_SBC, ASMIM_IMMEDIATE, 0x80 >> shift));
+					}
+
+					mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
+				}
 				else if (ins->mSrc[1].IsSByte() && shift != 0 && shift < 5)
 				{
 					mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp]));
@@ -18939,6 +18980,148 @@ bool NativeCodeBasicBlock::ShortcutPointerAddForward(void)
 	return changed;
 }
 
+bool NativeCodeBasicBlock::MoveIndirectLoadZeroStoreDown(int at)
+{
+	int yval = mIns[at].mAddress;
+
+	for (int i = at + 3; i < mIns.Size(); i++)
+	{
+		if (mIns[i].mType == ASMIT_LDA && mIns[i].mMode == ASMIM_ZERO_PAGE && mIns[i].mAddress == mIns[at + 2].mAddress)
+		{
+			if (mIns[i].mLive & LIVE_CPU_REG_Y)
+				return false;
+			mIns.Insert(i, mIns[at]);
+			mIns.Insert(i + 1, mIns[at + 1]);
+			mIns[i + 2].mType = ASMIT_STA;
+			mIns[i].mLive |= mIns[i + 2].mLive;
+			mIns[i + 1].mLive |= mIns[i + 2].mLive;
+			mIns.Remove(at + 1, 2);
+			return true;
+		}
+
+		if (mIns[i].ChangesZeroPage(mIns[at + 1].mAddress) || mIns[i].ChangesZeroPage(mIns[at + 1].mAddress + 1) || mIns[i].ReferencesZeroPage(mIns[at + 2].mAddress))
+			return false;
+
+		if (mIns[i].mType == ASMIT_JSR)
+			return false;
+
+		if (mIns[i].ChangesAddress())
+		{
+			if (mIns[i].mMode == ASMIM_INDIRECT_Y && mIns[i].mAddress == mIns[at + 1].mAddress)
+			{
+				if (yval == -1 || yval == mIns[at].mAddress)
+					return false;
+			}
+			else if (mIns[at + 1].MayBeChangedOnAddress(mIns[i]))
+				return false;
+		}
+
+		if (mIns[i].ChangesYReg())
+		{
+			if (mIns[i].mType == ASMIT_LDY && mIns[i].mMode == ASMIM_IMMEDIATE)
+				yval = mIns[i].mAddress;
+			else if (mIns[i].mType == ASMIT_INY && yval >= 0)
+				yval = (yval + 1) & 255;
+			else if (mIns[i].mType == ASMIT_DEY && yval >= 0)
+				yval = (yval - 1) & 255;
+			else
+				yval = -1;
+		}
+
+	}
+
+	return false;
+}
+
+bool NativeCodeBasicBlock::MoveLoadZeroStoreIndirectUp(int at)
+{
+	int i = at - 1;
+	while (i >= 0 && !(mIns[i].mMode == ASMIM_ZERO_PAGE && mIns[i].mAddress == mIns[at].mAddress))
+		i--;
+
+	if (i >= 0 && mIns[i].mType == ASMIT_STA && !(mIns[i].mLive & (LIVE_CPU_REG_A | LIVE_CPU_REG_Z | LIVE_CPU_REG_Y)))
+	{
+		int yval = -1;
+		for (int j = i + 1; j < at; j++)
+		{
+			if (mIns[j].mType == ASMIT_JSR)
+				return false;
+			if (mIns[j].ChangesZeroPage(mIns[at + 2].mAddress) || mIns[j].ChangesZeroPage(mIns[at + 2].mAddress + 1))
+				return false;
+
+			if (mIns[j].mMode == ASMIM_INDIRECT_Y && mIns[j].mAddress == mIns[at + 2].mAddress)
+			{
+				if (yval == -1 || yval == mIns[at].mAddress)
+					return false;
+			}
+			else if (mIns[j].MayBeSameAddress(mIns[at + 2]))
+				return false;
+
+			if (mIns[j].ChangesYReg())
+			{
+				if (mIns[j].mType == ASMIT_LDY && mIns[j].mMode == ASMIM_IMMEDIATE)
+					yval = mIns[j].mAddress;
+				else if (mIns[j].mType == ASMIT_INY && yval >= 0)
+					yval = (yval + 1) & 255;
+				else if (mIns[j].mType == ASMIT_DEY && yval >= 0)
+					yval = (yval - 1) & 255;
+				else
+					yval = -1;
+			}
+		}
+
+		NativeCodeInstruction	i0 = mIns[at + 1], i1 = mIns[at + 2];
+		mIns.Remove(at + 1, 2);
+
+		mIns.Insert(i + 1, i0);
+		mIns.Insert(i + 2, i1);
+		mIns[i].mLive |= LIVE_CPU_REG_A;
+		mIns[i + 1].mLive |= mIns[i].mLive;
+		mIns[i + 2].mLive |= mIns[i].mLive;
+
+		return true;
+	}
+
+	return false;
+}
+
+
+bool NativeCodeBasicBlock::ShortcutIndirectLoadStore(void)
+{
+	bool	changed = false;
+
+	if (!mVisited)
+	{
+		mVisited = true;
+
+		for (int i = 0; i + 2 < mIns.Size(); i++)
+		{
+			if (mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE &&
+				mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_INDIRECT_Y &&
+				mIns[i + 2].mType == ASMIT_STA && mIns[i + 2].mMode == ASMIM_ZERO_PAGE && !(mIns[i + 2].mLive & (LIVE_CPU_REG_A | LIVE_CPU_REG_Z)) &&
+				mIns[i + 2].mAddress != mIns[i + 1].mAddress && mIns[i + 2].mAddress != mIns[i + 1].mAddress + 1)
+			{
+				if (MoveIndirectLoadZeroStoreDown(i))
+					changed = true;
+			}
+			else if (mIns[i + 0].mType == ASMIT_LDA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
+				mIns[i + 1].mType == ASMIT_LDY && mIns[i + 1].mMode == ASMIM_IMMEDIATE &&
+				mIns[i + 2].mType == ASMIT_STA && mIns[i + 2].mMode == ASMIM_INDIRECT_Y && !(mIns[i + 2].mLive & (LIVE_CPU_REG_A | LIVE_CPU_REG_Z)))
+			{
+				if (MoveLoadZeroStoreIndirectUp(i))
+					changed = true;
+			}
+		}
+
+		if (mTrueJump && mTrueJump->ShortcutIndirectLoadStore())
+			changed = true;
+		if (mFalseJump && mFalseJump->ShortcutIndirectLoadStore())
+			changed = true;
+	}
+
+	return changed;
+}
+
 #if 0
 static int NativeCodeExpressionID;
 
@@ -34683,6 +34866,39 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
 
 #endif
 
+#if 1
+		for (int i = 0; i + 1 < mIns.Size(); i++)
+		{
+			if (mIns[i + 0].mType == ASMIT_ASL && mIns[i + 0].mMode == ASMIM_IMPLIED &&
+				mIns[i + 1].mType == ASMIT_LSR && mIns[i + 1].mMode == ASMIM_IMPLIED && !(mIns[i + 1].mLive & (LIVE_CPU_REG_Z | LIVE_CPU_REG_C)))
+			{
+				int j = 1;
+				while (i >= j && i + j + 1 < mIns.Size() &&
+					mIns[i - j].mType == ASMIT_ASL && mIns[i - j].mMode == ASMIM_IMPLIED &&
+					mIns[i + 1 + j].mType == ASMIT_LSR && mIns[i + 1 + j].mMode == ASMIM_IMPLIED && !(mIns[i + 1 + j].mLive & (LIVE_CPU_REG_Z | LIVE_CPU_REG_C)))
+					j++;
+				mIns[i + 1 - j].mType = ASMIT_AND;
+				mIns[i + 1 - j].mMode = ASMIM_IMMEDIATE;
+				mIns[i + 1 - j].mAddress = 0xff >> j;
+
+				while (j > 1)
+				{
+					mIns[i + j].mType = ASMIT_NOP;
+					mIns[i + j].mMode = ASMIM_IMPLIED;
+					j--;
+					mIns[i + 1 - j].mType = ASMIT_NOP;
+					mIns[i + 1 - j].mMode = ASMIM_IMPLIED;
+				}
+				mIns[i + 1].mType = ASMIT_NOP;
+				mIns[i + 1].mMode = ASMIM_IMPLIED;
+				changed = true;
+			}
+		}
+
+		CheckLive();
+
+#endif
+
 #if 1
 		bool	progress = false;
 		do {
@@ -36740,6 +36956,19 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
 						mIns[i + 2].mType = ASMIT_NOP; mIns[i + 2].mMode = ASMIM_IMPLIED;
 						progress = true;
 					}
+#endif
+#if 1
+					else if (
+						mIns[i + 0].mType == ASMIT_LSR && mIns[i + 0].mMode == ASMIM_IMPLIED &&
+						mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_IMMEDIATE && mIns[i + 1].mAddress == 0 &&
+						mIns[i + 2].mType == ASMIT_ROL && mIns[i + 2].mMode == ASMIM_IMPLIED && !(mIns[i + 2].mLive & LIVE_CPU_REG_C))
+					{
+						mIns[i + 1].mType = ASMIT_AND; mIns[i + 1].mAddress = 1;
+						mIns[i + 0].mAddress &= (mIns[i + 2].mAddress << 1) | 1;
+						mIns[i + 0].mType = ASMIT_NOP; mIns[i + 0].mMode = ASMIM_IMPLIED;
+						mIns[i + 2].mType = ASMIT_NOP; mIns[i + 2].mMode = ASMIM_IMPLIED;
+						progress = true;
+					}
 #endif
 					else if (
 						mIns[i + 0].IsShift() && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
@@ -36984,6 +37213,15 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
 						mIns.Remove(i + 2);
 						progress = true;
 					}
+					else if (
+						mIns[i + 0].mType == ASMIT_LDA &&
+						mIns[i + 1].mType == ASMIT_STA &&
+						mIns[i + 2].mType == ASMIT_STA && mIns[i + 2].SameEffectiveAddress(mIns[i + 0]) &&
+						!(mIns[i + 0].mMode == ASMIM_INDIRECT_Y && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && (mIns[i + 1].mAddress == mIns[i + 0].mAddress || mIns[i + 1].mAddress + 1 == mIns[i + 0].mAddress)))
+					{
+						mIns[i + 2].mType = ASMIT_NOP; mIns[i + 2].mMode = ASMIM_IMPLIED;
+						progress = true;
+					}
 
 					if (
 						mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 0].mAddress <= 1 &&
@@ -40915,7 +41153,7 @@ void NativeCodeProcedure::Compile(InterCodeProcedure* proc)
 {
 	mInterProc = proc;
 
-	CheckFunc = !strcmp(mInterProc->mIdent->mString, "main");
+	CheckFunc = !strcmp(mInterProc->mIdent->mString, "test");
 
 	int	nblocks = proc->mBlocks.Size();
 	tblocks = new NativeCodeBasicBlock * [nblocks];
@@ -41688,6 +41926,14 @@ void NativeCodeProcedure::Optimize(void)
 			changed = true;
 #endif
 
+
+		if (step == 2)
+		{
+			ResetVisited();
+			if (mEntryBlock->ShortcutIndirectLoadStore())
+				changed = true;
+		}
+
 #if 1
 		if (step >= 3)
 		{

oscar64/NativeCodeGenerator.h

@@ -604,6 +604,10 @@ public:
 	bool CheckShortcutPointerAddForward(int at);
 	bool ShortcutPointerAddForward(void);
 
+	bool ShortcutIndirectLoadStore(void);
+	bool MoveIndirectLoadZeroStoreDown(int at);
+	bool MoveLoadZeroStoreIndirectUp(int at);
+
 	bool CommonSubExpressionElimination(void);
 
 	bool CheckPatchFailReg(const NativeCodeBasicBlock* block, int reg);

oscar64/Parser.cpp

@@ -231,6 +231,8 @@ Declaration* Parser::ParseStructDeclaration(uint64 flags, DecType dt, Declaratio
 		}
 		else
 		{
+			int	bitsleft = 0;
+
 			Declaration* mlast = nullptr;
 			for (;;)
 			{
@@ -334,7 +336,103 @@ Declaration* Parser::ParseStructDeclaration(uint64 flags, DecType dt, Declaratio
 									mdec->mType = DT_ELEMENT;
 									mdec->mOffset = offset;
 
-									offset += mdec->mBase->mSize;
+									if (mdec->mBits)
+									{
+										if (mdec->mBits <= 8)
+										{
+											if (bitsleft == 0)
+											{
+												bitsleft = 8 - mdec->mBits;
+												offset++;
+											}
+											else if (bitsleft >= mdec->mBits)
+											{
+												mdec->mOffset--;
+												mdec->mShift = 8 - bitsleft;
+												bitsleft -= mdec->mBits;
+											}
+											else
+											{
+												mdec->mOffset--;
+												mdec->mShift = 8 - bitsleft;
+												bitsleft = 8 + bitsleft - mdec->mBits;
+												offset++;
+											}
+										}
+										else if (mdec->mBits <= 16)
+										{
+											if (bitsleft == 0)
+											{
+												bitsleft = 16 - mdec->mBits;
+												offset += 2;
+											}
+											else if (bitsleft + 8 >= mdec->mBits)
+											{
+												mdec->mOffset--;
+												mdec->mShift = 8 - bitsleft;
+												bitsleft = bitsleft + 8 - mdec->mBits;
+												offset++;
+											}
+											else
+											{
+												mdec->mOffset -= 3;
+												mdec->mShift = 24 - bitsleft;
+												bitsleft = bitsleft + 16 - mdec->mBits;
+												offset += 2;
+											}
+										}
+										else if (mdec->mBits <= 24)
+										{
+											if (bitsleft == 0)
+											{
+												bitsleft = 24 - mdec->mBits;
+												offset += 3;
+											}
+											else if (bitsleft + 16 >= mdec->mBits)
+											{
+												mdec->mOffset -= 2;
+												mdec->mShift = 16 - bitsleft;
+												bitsleft = bitsleft + 16 - mdec->mBits;
+												offset += 2;
+											}
+											else
+											{
+												mdec->mOffset -= 1;
+												mdec->mShift = 8 - bitsleft;
+												bitsleft = bitsleft + 24 - mdec->mBits;
+												offset += 3;
+											}
+										}
+										else
+										{
+											if (bitsleft == 0)
+											{
+												bitsleft = 32 - mdec->mBits;
+												offset += 4;
+											}
+											else if (bitsleft + 24 >= mdec->mBits)
+											{
+												mdec->mOffset--;
+												mdec->mShift = 8 - bitsleft;
+												bitsleft = bitsleft + 24 - mdec->mBits;
+												offset+=2;
+											}
+											else
+											{
+												bitsleft = 32 - mdec->mBits;
+												offset += mdec->mBase->mSize;
+											}
+										}
+
+										if (mdec->mShift == 0 && mdec->mBits == 8 * mdec->mSize)
+											mdec->mBits = 0;
+									}
+									else
+									{
+										bitsleft = 0;
+										offset += mdec->mBase->mSize;
+									}
+
 									if (offset > dec->mSize)
 										dec->mSize = offset;
 
@@ -1409,6 +1507,8 @@ Expression* Parser::ParseInitExpression(Declaration* dtype)
 					Expression* texp = ParseInitExpression(mdec->mBase);
 
 					Declaration* cdec = CopyConstantInitializer(mdec->mOffset, mdec->mBase, texp);
+					cdec->mBits = mdec->mBits;
+					cdec->mShift = mdec->mShift;
 
 					if (last)
 						last->mNext = cdec;
@@ -4043,9 +4143,19 @@ Declaration* Parser::ParseDeclaration(Declaration * pdec, bool variable, bool ex
 			ldec = ndec;
 //			ndec->mNext = nullptr;
 
-			if (mScanner->mToken == TK_ASSIGN)
+			if (ConsumeTokenIf(TK_COLON))
+			{
+				Expression* exp = ParseRExpression();
+				if (!ndec->mBase->IsIntegerType())
+					mErrors->Error(exp->mLocation, EERR_INVALID_BITFIELD, "Invalid bitfíeld for non integer type");
+				else if (exp->mType == EX_CONSTANT && exp->mDecType->IsIntegerType() && exp->mDecValue->mType == DT_CONST_INTEGER)
+					ndec->mBits = uint8(exp->mDecValue->mInteger);
+				else
+					mErrors->Error(exp->mLocation, EERR_CONSTANT_TYPE, "Constant integer expression expected");
+			}
+
+			if (ConsumeTokenIf(TK_ASSIGN))
 			{
-				mScanner->NextToken();
 				ndec->mValue = ParseInitExpression(ndec->mBase);
 				if (ndec->mBase->mType == DT_TYPE_AUTO)
 				{

oscar64/oscar64.cpp

@@ -116,7 +116,8 @@ int main2(int argc, const char** argv)
 		strcpy_s(crtPath, includePath);
 		strcat_s(crtPath, "crt.c");
 
-		bool		emulate = false, profile = false, trace = false;
+		bool		emulate = false, profile = false;
+		int			trace = 0;
 
 		targetPath[0] = 0;
 		diskPath[0] = 0;
@@ -211,7 +212,9 @@ int main2(int argc, const char** argv)
 					if (arg[2] == 'p')
 						profile = true;
 					else if (arg[2] == 't')
-						trace = true;
+						trace = 2;
+					else if (arg[2] == 'b')
+						trace = 1;
 				}
 				else if (arg[1] == 'd')
 				{