Merge branch 'sgq_qasm_main' of https://github.com/marketideas/qasm

asm.cpp

@@ -34,6 +34,8 @@ void CLASS::print(uint32_t lineno)
 
 	uint32_t b = 4; // how many bytes show on the first line
 
+	bool merlinstyle=true;
+
 	if (datafillct > 0)
 	{
 		l = datafillct;
@@ -46,7 +48,25 @@ void CLASS::print(uint32_t lineno)
 	{
 		l = b;
 	}
+	if (errorcode > 0)
+	{
+		if (merlinstyle)
+		{
+			//printf("errorcode=%d\n",errorcode);
+			printf("%s in line: %d", errStrings[errorcode].c_str(), lineno+1);
+			if (errorText != "")
+			{
+				printf("%s", errorText.c_str());
+			}
+			printf("\n");
+		}
+		flags &= (~FLAG_NOLINEPRINT);
+	}
 
+	if (flags & FLAG_NOLINEPRINT)
+	{
+		return;
+	}
 	if (!checked)
 	{
 		nc1 = getBool("option.nocolor", false);
@@ -57,7 +77,7 @@ void CLASS::print(uint32_t lineno)
 		nc = nc1;
 	}
 
-	if (!isatty(STDOUT_FILENO))
+	if ((!isatty(STDOUT_FILENO)) || (merlinstyle))
 	{
 		nc = true;
 	}
@@ -87,7 +107,12 @@ void CLASS::print(uint32_t lineno)
 	}
 
 	pcol = 0;
-	if (!empty)
+
+	bool saddr = flags & FLAG_FORCEADDRPRINT;
+	saddr = (outbytect > 0) ? true : saddr;
+	saddr = (printlable != "") ? true : saddr;
+
+	if (saddr)
 	{
 		pcol += printf("%02X/%04X:", (startpc >> 16), startpc & 0xFFFF);
 	}
@@ -143,14 +168,17 @@ void CLASS::print(uint32_t lineno)
 					pcol += printf(" ");
 				}
 			}
-			//pcol += printf("%s", comment.c_str());
+			else
+			{
+				pcol += printf("%s", comment.c_str());
+			}
 		}
 	}
 	else
 	{
 		pcol += printf("%-12s %-8s %-10s ", printlable.c_str(), opcode.c_str(), operand.c_str());
 	}
-	if (errorcode > 0)
+	if ((errorcode > 0) && (!merlinstyle))
 	{
 		while (pcol < commentcol)
 		{
@@ -456,12 +484,12 @@ void CLASS::complete(void)
 {
 
 	uint64_t n = GetTickCount();
-	if (isDebug())
+	//if (isDebug())
 	{
 		//cout << "Processing Time: " << n - starttime << "ms" << endl;
 		uint64_t x = n - starttime;
 		uint32_t x1 = x & 0xFFFFFFFF;
-		printf("Processing Time: %u ms\n", x1);
+		printf("Elapsed time: %u ms\n", x1);
 
 	}
 }
@@ -606,7 +634,7 @@ int CLASS::processfile(std::string p, std::string &newfilename)
 		{
 			// is this the first file in the compilation, or a PUT/USE?
 			// if first, change CWD to location of file
-			LOG_DEBUG << "Changing directory to: " << dir << endl;
+			//LOG_DEBUG << "Changing directory to: " << dir << endl;
 			if (chdir(dir.c_str())) {} // change directory to where the file is
 		}
 
@@ -1221,6 +1249,7 @@ void CLASS::initpass(void)
 	allowdup = getBool("asm.allowduplicate", true);
 
 	skiplist = false;
+	generateCode = true;
 
 	PC.origin = 0x8000;
 	PC.currentpc = PC.origin;
@@ -1270,14 +1299,17 @@ void CLASS::initpass(void)
 	{
 		LUPstack.pop();
 	}
+	while (!DOstack.empty())
+	{
+		DOstack.pop();
+	}
 	curLUP.clear();
+	curDO.clear();
 	savepath = "";
 }
 
 void CLASS::complete(void)
 {
-	printf("\n\n=== Assembly Complete: %d bytes %u errors.\n", PC.totalbytes, errorct);
-
 	if (savepath != "")
 	{
 		if (errorct == 0)
@@ -1309,13 +1341,16 @@ void CLASS::complete(void)
 		}
 	}
 
+	printf("\n\nEnd qASM assembly, %d bytes, %u errors, %lu lines, %lu symbols.\n", PC.totalbytes, errorct, lines.size(), symbols.size());
+
+	TFileProcessor::complete();
+
 	if (listing)
 	{
 		showSymbolTable(true);
 		showSymbolTable(false);
 		showVariables();
 	}
-	TFileProcessor::complete();
 }
 
 int CLASS::evaluate(MerlinLine &line, std::string expr, int64_t &value)
@@ -1548,6 +1583,18 @@ int CLASS::substituteVariables(MerlinLine & line)
 	return (res);
 }
 
+bool CLASS::codeSkipped(void)
+{
+	bool res = false;
+
+	if (curLUP.lupskip)
+	{
+		res = true;
+	}
+
+	return (res);
+}
+
 void CLASS::process(void)
 {
 	uint32_t l;
@@ -1640,6 +1687,11 @@ void CLASS::process(void)
 				x = callOpCode(op, line);
 			}
 
+			if ((x > 0) && (codeSkipped())) // has a psuedo-op turned off code generation? (LUP, IF, etc)
+			{
+				x = 0;
+			}
+
 			if (x > 0)
 			{
 				if (!PCstack.empty()) // are we inside a DUM section?
@@ -1698,6 +1750,7 @@ void CLASS::process(void)
 
 		// end of file reached here, do some final checks
 
+#if 0
 		if (LUPstack.size() > 0)
 		{
 			errLine.clear();
@@ -1705,6 +1758,7 @@ void CLASS::process(void)
 			errLine.print(lineno);
 			pass = 2;
 		}
+#endif
 		pass++;
 	}
 

asm.h

@@ -18,6 +18,8 @@
 #define FLAG_BIGNUM    0x10
 #define FLAG_INDUM     0x20
 
+#define FLAG_FORCEADDRPRINT 0x0100
+#define FLAG_NOLINEPRINT 0x2000
 
 #define OP_A       0x0001
 #define OP_XY      0x0002
@@ -49,7 +51,6 @@ enum asmErrors
 	errBadBranch,
 	errForwardRef,
 	errNoRedefinition,
-	errBadOperand,
 	errDupSymbol,
 	errBadDUMop,
 	errOverflow,
@@ -59,10 +60,13 @@ enum asmErrors
 	errFileNotFound,
 	errFileNoAccess,
 	errBadEvaluation,
-	errMalformed,
+	errIllegalCharOperand,
 	errBadCharacter,
 	errUnexpectedOp,
 	errUnexpectedEOF,
+	errBadLUPOperand,
+	errBadLabel,
+	errBadOperand,
 	errMAX
 };
 
@@ -81,7 +85,6 @@ const std::string errStrings[errMAX + 1] =
 	"Relative branch offset too large",
 	"Forward Reference to symbol",
 	"Unable to redefine symbol",
-	"Error in expression",
 	"Duplicate Symbol",
 	"Invalid use of DUM/DEND",
 	"Overflow detected",
@@ -91,10 +94,13 @@ const std::string errStrings[errMAX + 1] =
 	"File not found",
 	"File no access",
 	"Unable to evaluate",
-	"Malformed Operand",
+	"Illegal char in operand",
 	"Unexpected character in input",
 	"Unexpected opcode",
 	"Unexpected End of File",
+	"LUP value must be 0 < VAL <= $8000",
+	"Unknown label",
+	"Bad operand",
 
 	""
 };
@@ -260,12 +266,29 @@ public:
 		lupct=0;
 		lupoffset=0;
 		luprunning=0;
+		lupskip=false;
 	}
 	uint16_t lupct;
+	bool lupskip;
 	uint32_t lupoffset;
 	uint16_t luprunning;
 };
 
+class TDOstruct
+{
+public:
+	TDOstruct()
+	{
+		clear();
+	}
+	void clear(void) {
+		dooff=false;
+		value=0;
+	}
+	uint32_t value;
+	bool dooff;
+};
+
 class TSymbol;
 typedef int (*TOpCB)(MerlinLine &line, TSymbol &sym);
 typedef std::function<int (MerlinLine &line, TSymbol &sym)> TOpCallback;
@@ -322,6 +345,8 @@ public:
 	bool skiplist; // used if lst is on, but LST opcode turns it off
 	uint32_t lineno;
 
+	bool generateCode;
+
 	std::string savepath;
 	TSymbol *currentsym;
 	std::vector<MerlinLine> lines;
@@ -331,9 +356,12 @@ public:
 	Poco::HashMap<std::string, TSymbol> variables;
 
 	TOriginSection PC;
+	TLUPstruct curLUP;
+	TDOstruct curDO;
+
 	std::stack<TOriginSection> PCstack;
 	std::stack<TLUPstruct> LUPstack;
-	TLUPstruct curLUP;
+	std::stack<TDOstruct> DOstack;
 
 	TPsuedoOp *psuedoops;
 
@@ -363,6 +391,8 @@ public:
 	int evaluate(MerlinLine &line, std::string expr, int64_t &value);
 
 	int substituteVariables(MerlinLine & line);
+	bool codeSkipped(void);
+
 	int parseOperand(MerlinLine &line);
 	int  getAddrMode(MerlinLine &line);
 	void setOpcode(MerlinLine &line, uint8_t op);

opcodes.cpp

@@ -754,10 +754,10 @@ void CLASS::insertOpcodes(void)
 	pushopcode("ADRL",P_DATA, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
 	pushopcode("HEX", P_HEX, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
 	pushopcode("DS",  0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
-	pushopcode("DO",  0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
+	pushopcode("DO",  P_DO, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
-	pushopcode("ELSE", 0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
+	pushopcode("ELSE",P_DO, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
-	pushopcode("IF",  0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
+	pushopcode("IF",  P_DO, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
-	pushopcode("FIN", 0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
+	pushopcode("FIN", P_DO, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
 	pushopcode("CHK", 0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
 	pushopcode("ERR", 0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));
 	pushopcode("KBD", 0x00, OP_PSUEDO, OPHANDLER(&CLASS::doPSEUDO));

psuedo.cpp

@@ -13,11 +13,102 @@ CLASS::~CLASS()
 
 }
 
+
+int CLASS::doDO(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
+{
+	UNUSED(opinfo);
+
+	TEvaluator eval(a);
+
+	int64_t eval_result = 0;
+	uint8_t shift;
+	int res = 0;
+	int err = 0;
+
+	std::string op = Poco::toUpper(line.opcode);
+	std::string oper = Poco::toUpper(line.operand);
+
+
+	if (op == "IF")
+	{
+		if (oper == "")
+		{
+			err = errIllegalCharOperand;
+		}
+		goto out;
+	}
+	if (op == "DO")
+	{
+
+		if (oper == "")
+		{
+			err = errIllegalCharOperand;
+			goto out;
+		}
+
+		//line.flags |= FLAG_NOLINEPRINT;
+
+		shift = 0;
+		eval_result = 0;
+		int x = eval.evaluate(line.operand, eval_result, shift);
+		a.curDO.dooff = (eval_result & 0xFFFFFF); // evaluate here
+
+		if (x < 0)
+		{
+			a.curDO.dooff = false;
+			err = errBadLabel;
+			if (a.pass == 0)
+			{
+				err = errForwardRef;
+			}
+		}
+
+		a.DOstack.push(a.curDO);
+		goto out;
+	}
+
+	if (op == "ELSE")
+	{
+		//line.flags |= FLAG_NOLINEPRINT;
+		a.curDO.dooff = !a.curDO.dooff;
+		goto out;
+	}
+
+	if (op == "FIN")
+	{
+		//line.flags |= FLAG_NOLINEPRINT;
+
+		if (a.DOstack.size() > 0)
+		{
+			// kind of a silent error here, just make sure we reinitialize
+			a.curDO.dooff = false;
+			a.curDO = a.DOstack.top();
+			a.DOstack.pop();
+		}
+		else
+		{
+			// kind of a silent error here, just make sure we reinitialize
+			a.curDO.dooff = false;
+		}
+		goto out;
+	}
+
+out:
+	if (err > 0)
+	{
+		line.setError(err);
+	}
+	return (res);
+}
+
 int CLASS::doLUP(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 {
 	UNUSED(opinfo);
-	UNUSED(line);
+
-	UNUSED(a);
+	TEvaluator eval(a);
+
+	int64_t eval_result = 0;
+	uint8_t shift;
 	int lidx, len;
 	int res = 0;
 	int err = 0;
@@ -26,24 +117,38 @@ int CLASS::doLUP(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 
 	if (op == "LUP")
 	{
+		line.flags |= FLAG_NOLINEPRINT;
 		len = line.lineno - 1; // MerlinLine line numbers are +1 from actual array idx
 		if (len >= 0)
 		{
+
+			shift = 0;
+			eval_result = 0;
+			int x = eval.evaluate(line.operand, eval_result, shift);
+
 			a.LUPstack.push(a.curLUP);
 
 			a.curLUP.lupoffset = len;
-			a.curLUP.lupct = 3; // evaluate here
+			a.curLUP.lupct = eval_result & 0xFFFF; // evaluate here
 			a.curLUP.luprunning++;
+
+			if ((x < 0) || (eval_result <= 0) || (eval_result > 0x8000))
+			{
+				// merlin just ignores LUP if the value is out of range
+				a.curLUP.lupct = 0;
+				a.curLUP.lupskip = true;
+			}
 		}
 		else
 		{
-			printf("err 3\n");
 			err = errUnexpectedOp;
 		}
 	}
 
 	if (op == "--^")
 	{
+		line.flags |= FLAG_NOLINEPRINT;
+
 		if (a.curLUP.luprunning > 0)
 		{
 			lidx = line.lineno - 1;
@@ -58,6 +163,10 @@ int CLASS::doLUP(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 					goto out;
 				}
 			}
+			// kind of a silent error here, just make sure we reinitialize
+			a.curLUP.luprunning = 0;
+			a.curLUP.lupct = 0;
+			a.curLUP.lupskip = false;
 
 			//printf("start=%d end=%d len=%d\n", a.curLUP.lupoffset, lidx, len);
 			if (a.LUPstack.size() > 0)
@@ -67,14 +176,14 @@ int CLASS::doLUP(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 			}
 			else
 			{
-				printf("err 2\n");
 				err = errUnexpectedOp;
 			}
 		}
 		else
 		{
-			printf("err 1\n");
+			a.curLUP.lupskip = false;
-			err = errUnexpectedOp;
+			// SGQ - found a '--^' without a LUP, should we just ignore?
+			//err = errUnexpectedOp;
 		}
 	}
 
@@ -289,6 +398,14 @@ int CLASS::doHEX(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 	uint32_t bytect = 0;
 	uint8_t b = 0;
 	uint8_t ct = 0;
+
+	if (os.length() == 0)
+	{
+		// case where HEX has no operand, Merlin does not flag as error
+		//line.setError(errIllegalCharOperand);
+		bytect = 0;
+		goto out;
+	}
 	for ( uint32_t i = 0; i < os.length(); ++i )
 	{
 		char c = os[i];
@@ -311,8 +428,9 @@ int CLASS::doHEX(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 		}
 		else
 		{
-			line.setError(errBadCharacter);
+			line.setError(errIllegalCharOperand);
-			return 0;
+			bytect = 0;
+			goto out;
 		}
 
 		// Got a good char, append to hex string and see if we've got a byte
@@ -338,9 +456,10 @@ int CLASS::doHEX(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 	}
 	if (ct & 0x01) // we got an odd number of nibbles
 	{
-		line.setError(errMalformed);
+		line.setError(errBadOperand);
 		bytect = 0;
 	}
+out:
 	line.outbytect = bytect;
 	return bytect;
 }
@@ -367,6 +486,8 @@ int CLASS::ProcessOpcode(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 		case P_DUM:
 		case P_DEND:
 			res = doDUM(a, line, opinfo);
+			line.flags |= FLAG_FORCEADDRPRINT;
+
 			break;
 		case P_ORG:
 			if (line.operand.length() > 0)
@@ -380,6 +501,7 @@ int CLASS::ProcessOpcode(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 				a.PC.currentpc = a.PC.orgsave;
 				line.startpc = a.PC.orgsave;
 			}
+			line.flags |= FLAG_FORCEADDRPRINT;
 			break;
 		case P_SAV:
 			a.savepath = a.processFilename(line.operand, Poco::Path::current(), 0);
@@ -395,8 +517,11 @@ int CLASS::ProcessOpcode(T65816Asm &a, MerlinLine &line, TSymbol &opinfo)
 			break;
 		case P_LUP:
 			res = doLUP(a, line, opinfo);
-			res = 0;
 			break;
+		case P_DO:
+			res = doDO(a, line, opinfo);
+			break;
+
 	}
 	return (res);
 }

psuedo.h

@@ -16,6 +16,7 @@ enum
 	P_HEX,
 	P_DATA,
 	P_LUP,
+	P_DO,
 
 	P_MAX
 };
@@ -32,6 +33,8 @@ public:
 	int doHEX(T65816Asm &a, MerlinLine &line, TSymbol &opinfo);
 	int doDATA(T65816Asm &a, MerlinLine &line, TSymbol &opinfo);
 	int doLUP(T65816Asm &a, MerlinLine &line, TSymbol &opinfo);
+	int doDO(T65816Asm &a, MerlinLine &line, TSymbol &opinfo);;
+
 
 };
 

qasm.ini

@@ -31,7 +31,7 @@ merlincompatible=true
 symcolumns=3
 
 [reformat]
-tabs=12; 18; 36
+tabs=12; 18; 30; 
 ;tabs=0;0;0
 
 

src/main.s

@@ -1,4 +1,4 @@
-            lst     off     
+            ;lst     off     
 *
 *  main.s
 *  Merlin32 Test
@@ -40,7 +40,6 @@ TSTADDR     =       $1000   ;absolute address for testing
 *==========================================================
 * Data Index DUM section test
 
-            lst     off             
             DUM     0       
 dum0        ds      1       ;fractional byte
 dum1        ds      1       
@@ -396,11 +395,8 @@ L00BC       bit     L00BC
 
             lst
 lup_start:
-            lup     3       
+            lup     0     
-            ;db      0   ; outside 
+            db      0   ; outside 
-            ;lup     3
-            ;db      1   ; inside
-            ;--^      
             --^