X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=riscasm.c;h=3092e6e7017d4c0e0a5145baf33d3ffd2d09663a;hp=fea5153a9f1bb54dd45aa6b52da55562b47621e7;hb=4a08774b122ba509b13c79975b2ad0f2e441c56b;hpb=bdbf34766f4d074a5933eb1326fe4ce03d249e10

diff --git a/riscasm.c b/riscasm.c
index fea5153..3092e6e 100644
--- a/riscasm.c
+++ b/riscasm.c
@@ -1,7 +1,7 @@
 //
 // RMAC - Reboot's Macro Assembler for all Atari computers
 // RISCA.C - GPU/DSP Assembler
-// Copyright (C) 199x Landon Dyer, 2011-2019 Reboot and Friends
+// Copyright (C) 199x Landon Dyer, 2011-2020 Reboot and Friends
 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
 // Source utilised with the kind permission of Landon Dyer
 //
@@ -229,8 +229,8 @@ int GenerateRISCCode(int state)
 	int indexed;				// Indexed register flag
 
 	uint64_t eval;				// Expression value
-	uint16_t eattr;					// Expression attributes
-	SYM * esym;					// External symbol involved in expr.
+	uint16_t eattr;				// Expression attributes
+	SYM * esym = NULL;			// External symbol involved in expr.
 	TOKEN r_expr[EXPRSIZE];		// Expression token list
 
 	// Get opcode parameter and type
@@ -258,7 +258,7 @@ int GenerateRISCCode(int state)
 	// UNPACK
 	case RI_ONE:
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, parm >> 6, reg2);
 		break;
 
@@ -276,7 +276,7 @@ int GenerateRISCCode(int state)
 			altbankok = 1;                      // MOVETA
 
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg1, reg2);
 		break;
 
@@ -325,8 +325,14 @@ int GenerateRISCCode(int state)
 		}
 		else
 		{
+			if (esym && (esym->sattre & EQUATEDREG))
+				return error("equated register seen for immediate value");
+
+			if (eattr & RISCREG)
+				return error("register seen for immediate value");
+
 			if (((int)eval < reg1) || ((int)eval > reg2))
-				return error("constant out of range (%d to %d", reg1, reg2);
+				return error("constant out of range (%d to %d)", reg1, reg2);
 
 			if (parm & SUB32)
 				reg1 = 32 - (int)eval;
@@ -338,7 +344,7 @@ int GenerateRISCCode(int state)
 
 		CHECK_COMMA;
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg1, reg2);
 		break;
 
@@ -387,7 +393,7 @@ int GenerateRISCCode(int state)
 
 		CHECK_COMMA;
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 
 		DepositRISCInstructionWord(parm, 0, reg2);
 		val = WORDSWAP32(eval);
@@ -410,7 +416,7 @@ int GenerateRISCCode(int state)
 
 		CHECK_COMMA;
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg1, reg2);
 		break;
 
@@ -533,7 +539,7 @@ int GenerateRISCCode(int state)
 		tok++;
 		CHECK_COMMA;
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg1, reg2);
 		break;
 
@@ -652,7 +658,7 @@ int GenerateRISCCode(int state)
 			return MalformedOpcode(MALF_RPAREN);
 
 		tok++;
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg2, reg1);
 		break;
 
@@ -670,7 +676,7 @@ int GenerateRISCCode(int state)
 		tok++;
 		CHECK_COMMA;
 		reg2 = EvaluateRegisterFromTokenStream(FU_REGTWO);
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg1, reg2);
 		break;
 
@@ -689,7 +695,7 @@ int GenerateRISCCode(int state)
 			return MalformedOpcode(MALF_RPAREN);
 
 		tok++;
-		at_eol();
+		ErrorIfNotAtEOL();
 		DepositRISCInstructionWord(parm, reg2, reg1);
 		break;
 
@@ -802,7 +808,7 @@ int GenerateRISCCode(int state)
 				return MalformedOpcode(MALF_RPAREN);
 
 			tok++;
-			at_eol();
+			ErrorIfNotAtEOL();
 		}
 
 		DepositRISCInstructionWord(parm, reg2, reg1);