More native code generator

README.md

@@ -51,6 +51,7 @@ The first release of the compiler is severely limited considering it is only two
 * Missing livetime reduction of intermediates
 * No block domination analysis
 * No register use for arguments
+* Auto variables places on fixed stack for known call sequence
 
 ### Intermediate code generation
 
@@ -59,7 +60,8 @@ The first release of the compiler is severely limited considering it is only two
 
 ### Native code generation
 
-* Missing
+* Calling non native functions missing
+* More byte operation optimisation required
 
 ## Implementation Details
 
@@ -109,6 +111,15 @@ The intermediate code generator assumes a large number of registers so the zero
 * **0x43-0x52** caller saved registers
 * **0x53-0x8f** callee saved registers
 
+Routines can be marked to be compiled to 6502 machine code with the native pragma:
+
+    void Plot(int x, int y)
+    {
+    	(*Bitmap)[y >> 3][x >> 3][y & 7] |= 0x80 >> (x & 7);
+    }
+
+    #pragma native(Plot)
+
 
 
 

autotest/autotest.bat

@@ -39,6 +39,9 @@ if %errorlevel% neq 0 goto :error
 ..\release\oscar64 -i=../include -rt=../include/crt.c -e testint16cmp.c
 if %errorlevel% neq 0 goto :error
 
+..\release\oscar64 -i=../include -rt=../include/crt.c -e floatstringtest.c
+if %errorlevel% neq 0 goto :error
+
 exit /b 0
 :error
 echo Failed with error #%errorlevel%.

autotest/bitshifttest.c

@@ -0,0 +1,94 @@
+#include <stdio.h>
+
+unsigned shl1b(int n)
+{
+	return 1 << n;
+}
+
+unsigned shl1n(int n)
+{
+	return 1 << n;
+}
+
+#pragma native(shl1n)
+
+unsigned shr1b(int n)
+{
+	return 0x8000 >> n;
+}
+
+unsigned shr1n(int n)
+{
+	return 0x8000 >> n;
+}
+
+#pragma native(shr1n)
+
+unsigned shl4b(int n)
+{
+	return 0x0010 << n;
+}
+
+unsigned shl4n(int n)
+{
+	return 0x0010 << n;
+}
+
+#pragma native(shl4n)
+
+unsigned shr4b(int n)
+{
+	return 0x0800 >> n;
+}
+
+unsigned shr4n(int n)
+{
+	return 0x0800 >> n;
+}
+
+#pragma native(shr4n)
+
+
+unsigned shl8b(int n)
+{
+	return 0x0100 << n;
+}
+
+unsigned shl8n(int n)
+{
+	return 0x0100 << n;
+}
+
+#pragma native(shl8n)
+
+unsigned shr8b(int n)
+{
+	return 0x0080 >> n;
+}
+
+unsigned shr8n(int n)
+{
+	return 0x0080 >> n;
+}
+
+#pragma native(shr8n)
+
+int main(void)
+{
+	for(int i=0; i<32; i++)
+	{
+		printf("1: %.4x : %.4x | %.4x : %.4x\n", shl1b(i), shl1n(i), shr1b(i), shr1n(i));
+	}
+
+	for(int i=0; i<32; i++)
+	{
+		printf("4: %.4x : %.4x | %.4x : %.4x\n", shl4b(i), shl4n(i), shr4b(i), shr4n(i));
+	}
+
+	for(int i=0; i<32; i++)
+	{
+		printf("8: %.4x : %.4x | %.4x : %.4x\n", shl8b(i), shl8n(i), shr8b(i), shr8n(i));
+	}
+
+	return 0;
+}

autotest/floatstringtest.c

@@ -0,0 +1,25 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+
+int main(void)
+{
+	float	x = 1.0, y = 1.0;
+	
+	char	xb[20], yb[20];
+	for(int i=0; i<40; i++)
+	{
+		ftoa(x, xb); float xr = atof(xb);
+		ftoa(y, yb); float yr = atof(yb);
+		
+//		printf("%20g (%s) %20g : %20g (%s) %20g : %10f %10f \n", x, xb, xr, y, yb, y, fabs(x - xr) / x, fabs(y - yr) / y);
+		
+		if (fabs(x - xr) / x > 0.00001 || fabs(y - yr) / y > 0.00001)
+			return -1;
+
+		x *= 2.5;
+		y *= 0.8;
+	}
+	
+	return 0;
+}

include/crt.c

@@ -295,6 +295,30 @@ P1:
 }		
 #pragma	bytecode(BC_JSR, inp_jsr)
 
+__asm inp_native
+{
+		tya
+		clc
+		adc	ip
+		sta	P1 + 1
+		lda	ip + 1
+		adc	#0
+		sta P1 + 2
+P1:
+		jsr	$0000
+
+		ldy	#0
+		lda	(sp), y
+		sta	ip
+		iny
+		lda	(sp), y
+		sta	ip + 1
+		dey
+		jmp	startup.exec
+}		
+
+#pragma	bytecode(BC_NATIVE, inp_native)
+	
 __asm inp_const_p8
 {
 		lda	(ip), y
@@ -2532,6 +2556,18 @@ __asm inp_op_abs_f32
 
 unsigned char ubitmask[8] = {0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff};
 
+unsigned char bitshift[56] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+	0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+#pragma runtime(bitshift, bitshift)
+
 __asm fround {
 ffloor:
 		bit	accu + 3

include/crt.h

@@ -145,7 +145,9 @@ enum ByteCode
 	BC_JSR,
 
 	BC_COPY,
-	BC_COPY_LONG
+	BC_COPY_LONG,
+
+	BC_NATIVE = 0x75
 };
 
 #pragma compile("crt.c")

include/math.c

@@ -176,7 +176,7 @@ float log10(float f)
 
 float pow(float p, float q)
 {
-	return exp(p * log(q));
+	return exp(q * log(p));
 }
 
 float sqrt(float f)

include/stdlib.c

@@ -1,6 +1,7 @@
 #include "stdlib.h"
 #include "string.h"
 #include "stdio.h"
+#include "math.h"
 
 void itoa(int n, char * s, int radix)
 {
@@ -164,6 +165,90 @@ int atoi(const char * s)
 	return v;		
 }
 
+const float tpow10[7] = {1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0};
+
+float atof(const char * s)
+{
+	char	c;
+	while ((c = *s++) <= ' ')
+		if (!c) return 0;
+	
+	bool neg = false;
+	if (c == '-')
+	{
+		neg = true;
+		c = *s++;
+	}
+	else if (c == '+')
+		c = *s++;
+	
+	float	v = 0;
+	while (c >= '0' && c <= '9')
+	{
+		v = v * 10 + (c - '0');
+		c = *s++;
+	}
+
+	if (c == '.')
+	{
+		float	d = 1.0;
+		c = *s++;
+		while (c >= '0' && c <= '9')
+		{
+			v = v * 10 + (c - '0');
+			d = d * 10;
+			c = *s++;
+		}
+
+		v /= d;
+	}
+
+	if (c == 'e' || c == 'E')
+	{
+		c = *s++;
+		bool	eneg = false;
+		if (c == '-')
+		{
+			eneg = true;
+			c = *s++;
+		}
+		else if (c == '+')
+			c = *s++;
+
+		int	e = 0;
+		while (c >= '0' && c <= '9')
+		{
+			e = e * 10 + (c - '0');
+			c = *s++;
+		}
+
+		if (eneg)
+		{
+			while (e > 6)
+			{
+				v /= 1000000.0;
+				e -= 6;
+			}
+			v /= tpow10[e];
+		}
+		else
+		{
+			while (e > 6)
+			{
+				v *= 1000000.0;
+				e -= 6;
+			}
+			v *= tpow10[e];
+		}
+		
+	}
+	
+	if (neg)
+		v = -v;
+	
+	return v;	
+}
+
 void exit(int status)
 {
 	__asm {

include/stdlib.h

@@ -9,6 +9,8 @@ void ftoa(float f, char * s);
 
 int atoi(const char * s);
 
+float atof(const char * s);
+
 void exit(int status);
 
 void * malloc(unsigned int size);

oscar64/ByteCodeGenerator.cpp

@@ -1556,6 +1556,7 @@ void ByteCodeBasicBlock::CallAssembler(InterCodeProcedure* proc, const InterInst
 		bins.mRelocate = true;
 		bins.mVIndex = ins.mVarIndex;
 		bins.mFunction = ins.mMemory == IM_PROCEDURE;
+		bins.mValue = ins.mSIntConst[0];
 		mIns.Push(bins);
 	}
 
@@ -3546,51 +3547,51 @@ void ByteCodeGenerator::WriteAsmFile(FILE * file, Address & addr)
 			switch (d.mMode)
 			{
 			case ASMIM_IMPLIED:
-				fprintf(file, "%04x : %02x __ __ %s\n", iip, mMemory[ip], AsmInstructionNames[d.mType]);
+				fprintf(file, "%04x : %02x __ __ %s\n", iip, mMemory[iip], AsmInstructionNames[d.mType]);
 				break;
 			case ASMIM_IMMEDIATE:
 				addr = mMemory[ip++];
-				fprintf(file, "%04x : %02x %02x __ %s #$%02x\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s #$%02x\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_ZERO_PAGE:
 				addr = mMemory[ip++];
-				fprintf(file, "%04x : %02x %02x __ %s $%02x\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s $%02x\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_ZERO_PAGE_X:
 				addr = mMemory[ip++];
-				fprintf(file, "%04x : %02x %02x __ %s $%02x,x\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s $%02x,x\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_ZERO_PAGE_Y:
 				addr = mMemory[ip++];
-				fprintf(file, "%04x : %02x %02x __ %s $%02x,y\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s $%02x,y\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_ABSOLUTE:
 				addr = mMemory[ip] + 256 * mMemory[ip + 1];
-				fprintf(file, "%04x : %02x %02x %02x %s $%04x\n", iip, mMemory[ip], mMemory[ip + 1], mMemory[ip + 2], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x %02x %s $%04x\n", iip, mMemory[iip], mMemory[iip + 1], mMemory[iip + 2], AsmInstructionNames[d.mType], addr);
 				ip += 2;
 				break;
 			case ASMIM_ABSOLUTE_X:
 				addr = mMemory[ip] + 256 * mMemory[ip + 1];
-				fprintf(file, "%04x : %02x %02x %02x %s $%04x,x\n", iip, mMemory[ip], mMemory[ip + 1], mMemory[ip + 2], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x %02x %s $%04x,x\n", iip, mMemory[iip], mMemory[iip + 1], mMemory[iip + 2], AsmInstructionNames[d.mType], addr);
 				ip += 2;
 				break;
 			case ASMIM_ABSOLUTE_Y:
 				addr = mMemory[ip] + 256 * mMemory[ip + 1];
-				fprintf(file, "%04x : %02x %02x %02x %s $%04x,y\n", iip, mMemory[ip], mMemory[ip + 1], mMemory[ip + 2], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x %02x %s $%04x,y\n", iip, mMemory[iip], mMemory[iip + 1], mMemory[iip + 2], AsmInstructionNames[d.mType], addr);
 				ip += 2;
 				break;
 			case ASMIM_INDIRECT:
 				addr = mMemory[ip] + 256 * mMemory[ip + 1];
 				ip += 2;
-				fprintf(file, "%04x : %02x %02x %02x %s ($%04x)\n", iip, mMemory[ip], mMemory[ip + 1], mMemory[ip + 2], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x %02x %s ($%04x)\n", iip, mMemory[iip], mMemory[iip + 1], mMemory[iip + 2], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_INDIRECT_X:
 				addr = mMemory[ip++];
-				fprintf(file, "%04x : %02x %02x __ %s ($%02x,x)\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s ($%02x,x)\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_INDIRECT_Y:
 				addr = mMemory[ip++];
-				fprintf(file, "%04x : %02x %02x __ %s ($%02x),y\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s ($%02x),y\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			case ASMIM_RELATIVE:
 				addr = mMemory[ip++];
@@ -3598,7 +3599,7 @@ void ByteCodeGenerator::WriteAsmFile(FILE * file, Address & addr)
 					addr = addr + ip - 256;
 				else
 					addr = addr + ip;
-				fprintf(file, "%04x : %02x %02x __ %s $%02x\n", iip, mMemory[ip], mMemory[ip + 1], AsmInstructionNames[d.mType], addr);
+				fprintf(file, "%04x : %02x %02x __ %s $%02x\n", iip, mMemory[iip], mMemory[iip + 1], AsmInstructionNames[d.mType], addr);
 				break;
 			}
 		}

oscar64/ByteCodeGenerator.h

@@ -134,7 +134,9 @@ enum ByteCode
 	BC_JSR,
 
 	BC_COPY,
-	BC_COPY_LONG
+	BC_COPY_LONG,
+
+	BC_NATIVE = 0x75
 };
 
 class ByteCodeProcedure;

oscar64/Compiler.cpp

@@ -143,7 +143,13 @@ bool Compiler::GenerateCode(void)
 					index = bcdec->mBase->mVarIndex;
 					offset = bcdec->mInteger;
 				}
-
+				else if (bcdec->mType == DT_VARIABLE)
+				{
+					if (bcdec->mBase->mVarIndex < 0)
+						mInterCodeGenerator->InitGlobalVariable(mInterCodeModule, bcdec);
+					index = bcdec->mVarIndex;
+					offset = bcdec->mOffset + mByteCodeGenerator->mRelocations[i].mOffset;
+				}
 				assert(index > 0);
 				mInterCodeModule->UseGlobal(index);
 

oscar64/InterCode.cpp

@@ -1593,6 +1593,7 @@ void InterCodeBasicBlock::CheckValueUsage(InterInstruction& ins, const GrowingIn
 			ins.mMemory = tvalue[ins.mSTemp[0]]->mMemory;
 			ins.mVarIndex = tvalue[ins.mSTemp[0]]->mVarIndex;
 			ins.mOperandSize = tvalue[ins.mSTemp[0]]->mOperandSize;
+			ins.mSIntConst[0] = tvalue[ins.mSTemp[0]]->mIntValue;
 			ins.mSTemp[0] = -1;
 		}
 
@@ -2708,6 +2709,9 @@ static bool CanBypassStore(const InterInstruction& sins, const InterInstruction&
 			return false;
 	}
 
+	if (sins.mMemory == IM_FRAME && (bins.mCode == IC_PUSH_FRAME || bins.mCode == IC_POP_FRAME))
+		return false;
+
 	// Side effects
 	if (bins.mCode == IC_CALL || bins.mCode == IC_JSR)
 		return false;

oscar64/InterCodeGenerator.cpp

@@ -341,9 +341,17 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 				ins.mTType = InterTypeOf(dec->mBase);
 				ins.mTTemp = proc->AddTemporary(ins.mTType);
 				if (ins.mTType == IT_SIGNED)
+				{
+					if (dec->mInteger < -32768 || dec->mInteger > 32767)
+						mErrors->Warning(dec->mLocation, "Integer constant truncated");
 					ins.mIntValue = short(dec->mInteger);
+				}
 				else
+				{
+					if (dec->mInteger < 0 || dec->mInteger > 65535)
+						mErrors->Warning(dec->mLocation, "Unsigned integer constant truncated");
 					ins.mIntValue = unsigned short(dec->mInteger);
+				}
 				block->Append(ins);
 				return ExValue(dec->mBase, ins.mTTemp);
 
@@ -597,32 +605,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 					}
 					else
 					{
-						if (vll.mType->IsIntegerType() && vr.mType->mType == DT_TYPE_FLOAT)
-						{
-							InterInstruction	cins;
-							cins.mCode = IC_CONVERSION_OPERATOR;
-							cins.mOperator = IA_FLOAT2INT;
-							cins.mSType[0] = InterTypeOf(vr.mType);
-							cins.mSTemp[0] = vr.mTemp;
-							cins.mTType = InterTypeOf(vll.mType);
-							cins.mTTemp = proc->AddTemporary(cins.mTType);
-							vr.mTemp = cins.mTTemp;
-							vr.mType = TheSignedIntTypeDeclaration;
-							block->Append(cins);
-						}
-						else if (vll.mType->mType == DT_TYPE_FLOAT && vr.mType->IsIntegerType())
-						{
-							InterInstruction	cins;
-							cins.mCode = IC_CONVERSION_OPERATOR;
-							cins.mOperator = IA_INT2FLOAT;
-							cins.mSType[0] = InterTypeOf(vr.mType);
-							cins.mSTemp[0] = vr.mTemp;
-							cins.mTType = InterTypeOf(vll.mType);;
-							cins.mTTemp = proc->AddTemporary(cins.mTType);
-							vr.mTemp = cins.mTTemp;
-							vr.mType = TheFloatTypeDeclaration;
-							block->Append(cins);
-						}
+						vr = CoerceType(proc, block, vr, vll.mType);
 
 						InterInstruction	oins;
 						oins.mCode = IC_BINARY_OPERATOR;
@@ -1406,7 +1389,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 					mErrors->Error(exp->mLocation, "Not enough arguments for function call");
 
 				InterInstruction	cins;
-				if (exp->mLeft->mDecValue->mFlags & DTF_NATIVE)
+				if (exp->mLeft->mDecValue && exp->mLeft->mDecValue->mFlags & DTF_NATIVE)
 					cins.mCode = IC_JSR;
 				else
 					cins.mCode = IC_CALL;
@@ -2139,10 +2122,27 @@ void InterCodeGenerator::BuildInitializer(InterCodeModule * mod, uint8* dp, int
 		__int64	t = cast.i;
 		for (int i = 0; i < 4; i++)
 		{
-			dp[i] = t & 0xff;
+			dp[offset + i] = t & 0xff;
 			t >>= 8;
 		}
 	}
+	else if (data->mType == DT_CONST_FUNCTION)
+	{
+		if (data->mVarIndex < 0)
+		{
+			InterCodeProcedure* cproc = this->TranslateProcedure(mod, data->mValue, data);
+			cproc->ReduceTemporaries();
+		}
+
+		InterVariable::Reference	ref;
+		ref.mAddr = offset;
+		ref.mLower = true;
+		ref.mUpper = true;
+		ref.mFunction = true;
+		ref.mIndex = data->mVarIndex;
+		ref.mOffset = 0;
+		references.Push(ref);
+	}
 	else if (data->mType == DT_CONST_POINTER)
 	{
 		Expression* exp = data->mValue;

oscar64/InterCodeGenerator.h

@@ -22,6 +22,7 @@ public:
 
 	InterCodeProcedure* TranslateProcedure(InterCodeModule* mod, Expression* exp, Declaration * dec);
 	void TranslateAssembler(InterCodeModule* mod, Expression * exp);
+	void InitGlobalVariable(InterCodeModule* mod, Declaration* dec);
 protected:
 
 	Errors* mErrors;
@@ -30,7 +31,6 @@ protected:
 	ExValue CoerceType(InterCodeProcedure* proc, InterCodeBasicBlock*& block, ExValue v, Declaration * type);
 	ExValue TranslateExpression(Declaration * procType, InterCodeProcedure * proc, InterCodeBasicBlock*& block, Expression* exp, InterCodeBasicBlock* breakBlock, InterCodeBasicBlock* continueBlock);
 	void TranslateLogic(Declaration* procType, InterCodeProcedure* proc, InterCodeBasicBlock* block, InterCodeBasicBlock* tblock, InterCodeBasicBlock* fblock, Expression* exp);
-	void InitGlobalVariable(InterCodeModule* mod, Declaration* dec);
 
 	void BuildInitializer(InterCodeModule* mod, uint8 * dp, int offset, Declaration* data, GrowingArray<InterVariable::Reference> & references);
 };

oscar64/NativeCodeGenerator.h

@@ -28,19 +28,23 @@ class NativeCodeInstruction
 {
 public:
 	NativeCodeInstruction(AsmInsType type = ASMIT_INV, AsmInsMode mode = ASMIM_IMPLIED, int address = 0, int varIndex = -1, bool lower = true, bool upper = true);
+	NativeCodeInstruction(AsmInsType type, AsmInsMode mode, const char* runtime, int address = 0, bool lower = true, bool upper = true);
 	NativeCodeInstruction(const char* runtime);
 
 	AsmInsType		mType;
 	AsmInsMode		mMode;
 
 	int				mAddress, mVarIndex;
-	bool			mLower, mUpper;
+	bool			mLower, mUpper, mFunction;
 	const char	*	mRuntime;
 
 	void Assemble(NativeCodeBasicBlock* block);
 	void FilterRegUsage(NumberSet& requiredTemps, NumberSet& providedTemps);
 	bool IsUsedResultInstructions(NumberSet& requiredTemps);
 	bool ValueForwarding(NativeRegisterDataSet& data);
+
+	bool LoadsAccu(void) const;
+	bool ChangesAddress(void) const;
 };
 
 class NativeCodeBasicBlock
@@ -77,6 +81,7 @@ public:
 	void PutWord(uint16 code);
 
 	void LoadValueToReg(InterCodeProcedure* proc, const InterInstruction& ins, int reg, const NativeCodeInstruction * ainsl, const NativeCodeInstruction* ainsh);
+	void LoadConstantToReg(InterCodeProcedure* proc, const InterInstruction& ins, InterType type, int reg);
 
 	void LoadConstant(InterCodeProcedure* proc, const InterInstruction& ins);
 	void StoreValue(InterCodeProcedure* proc, const InterInstruction& ins);
@@ -88,6 +93,12 @@ public:
 	void LoadEffectiveAddress(InterCodeProcedure* proc, const InterInstruction& ins);
 	void NumericConversion(InterCodeProcedure* proc, const InterInstruction& ins);
 
+	void CallAssembler(InterCodeProcedure* proc, const InterInstruction& ins);
+	void CallFunction(InterCodeProcedure* proc, const InterInstruction& ins);
+
+	void ShiftRegisterLeft(InterCodeProcedure* proc, int reg, int shift);
+	int ShortMultiply(InterCodeProcedure* proc, const InterInstruction& ins, const InterInstruction* sins, int index, int mul);
+
 	bool CheckPredAccuStore(int reg);
 
 	NumberSet		mLocalRequiredRegs, mLocalProvidedRegs;
@@ -98,6 +109,8 @@ public:
 	void BuildGlobalProvidedRegSet(NumberSet fromProvidedTemps);
 	bool BuildGlobalRequiredRegSet(NumberSet& fromRequiredTemps);
 	bool RemoveUnusedResultInstructions(void);
+
+	bool MoveLoadStoreUp(int at);
 };
 
 class NativeCodeProcedure

oscar64/Parser.cpp

@@ -804,11 +804,11 @@ Expression* Parser::ParseSimpleExpression(void)
 		break;
 	case TK_INTEGER:
 		dec = new Declaration(mScanner->mLocation, DT_CONST_INTEGER);
+		dec->mInteger = mScanner->mTokenInteger;
 		if (dec->mInteger < 32768)
 			dec->mBase = TheSignedIntTypeDeclaration;
 		else
 			dec->mBase = TheUnsignedIntTypeDeclaration;
-		dec->mInteger = mScanner->mTokenInteger;
 		exp = new Expression(mScanner->mLocation, EX_CONSTANT);
 		exp->mDecValue = dec;
 		exp->mDecType = dec->mBase;
@@ -993,6 +993,8 @@ Expression* Parser::ParsePostfixExpression(void)
 			else
 				mErrors->Error(mScanner->mLocation, "']' expected");
 			nexp->mDecType = exp->mDecType->mBase;
+			if (!nexp->mDecType)
+				nexp->mDecType = TheVoidTypeDeclaration;
 			exp = nexp;
 		}
 		else if (mScanner->mToken == TK_OPEN_PARENTHESIS)
@@ -2224,9 +2226,13 @@ void Parser::ParsePragma(void)
 					}
 
 					if (rtident)
-					{
 						mCompilationUnits->mRuntimeScope->Insert(rtident, dec);
-					}
+				}
+				else if (dec && dec->mType == DT_VARIABLE && (dec->mFlags & DTF_GLOBAL))
+				{
+					if (rtident)
+						mCompilationUnits->mRuntimeScope->Insert(rtident, dec);
+					mScanner->NextToken();
 				}
 				else
 				{

oscar64/oscar64.rc

@@ -25,8 +25,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_NEUTRAL
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,0,23,0
- PRODUCTVERSION 1,0,23,0
+ FILEVERSION 1,0,24,0
+ PRODUCTVERSION 1,0,24,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -43,12 +43,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "oscar64"
             VALUE "FileDescription", "oscar64 compiler"
-            VALUE "FileVersion", "1.0.23.0"
+            VALUE "FileVersion", "1.0.24.0"
             VALUE "InternalName", "oscar64.exe"
             VALUE "LegalCopyright", "Copyright (C) 2021"
             VALUE "OriginalFilename", "oscar64.exe"
             VALUE "ProductName", "oscar64"
-            VALUE "ProductVersion", "1.0.23.0"
+            VALUE "ProductVersion", "1.0.24.0"
         END
     END
     BLOCK "VarFileInfo"

oscar64setup/oscar64setup.vdproj

@@ -147,6 +147,14 @@
             "PrerequisitesLocation" = "2:1"
             "Url" = "8:"
             "ComponentsUrl" = "8:"
+                "Items"
+                {
+                    "{EDC2488A-8267-493A-A98E-7D9C3B36CDF3}:.NETFramework,Version=v4.7.2"
+                    {
+                    "Name" = "8:Microsoft .NET Framework 4.7.2 (x86 and x64)"
+                    "ProductCode" = "8:.NETFramework,Version=v4.7.2"
+                    }
+                }
             }
         }
     }
@@ -496,15 +504,15 @@
         {
         "Name" = "8:Microsoft Visual Studio"
         "ProductName" = "8:oscar64"
-        "ProductCode" = "8:{468390A3-2F63-4CA4-9043-3B1AEEA1852F}"
-        "PackageCode" = "8:{A55AE2BA-C814-4AD7-BBB6-00042C360D73}"
+        "ProductCode" = "8:{B20D936B-B9E1-4135-B9AA-8C367043CF71}"
+        "PackageCode" = "8:{63E1E188-3AB3-4767-B84A-CDB7F9FC9E10}"
         "UpgradeCode" = "8:{9AB61EFF-ACAC-4079-9950-8D96615CD4EF}"
         "AspNetVersion" = "8:2.0.50727.0"
         "RestartWWWService" = "11:FALSE"
         "RemovePreviousVersions" = "11:TRUE"
         "DetectNewerInstalledVersion" = "11:TRUE"
         "InstallAllUsers" = "11:FALSE"
-        "ProductVersion" = "8:1.0.23"
+        "ProductVersion" = "8:1.0.24"
         "Manufacturer" = "8:oscar64"
         "ARPHELPTELEPHONE" = "8:"
         "ARPHELPLINK" = "8:"