From f2a515a940ea5e66c9fbc9669e6293ae32b7041a Mon Sep 17 00:00:00 2001
From: sanine-a <sanine.not@pm.me>
Date: Mon, 22 May 2023 14:26:10 -0500
Subject: update label style and add implicit second operand

---
 src/parser/grammar.jison | 87 ++++++++++++++++++++++++++----------------------
 1 file changed, 47 insertions(+), 40 deletions(-)

(limited to 'src/parser/grammar.jison')

diff --git a/src/parser/grammar.jison b/src/parser/grammar.jison
index 80edfc5..2f5b30a 100644
--- a/src/parser/grammar.jison
+++ b/src/parser/grammar.jison
@@ -4,44 +4,43 @@
 
 %%
 
-<<EOF>>          { console.log("EOF"); return "EOF";     }
-<comment>"\n"    { this.popState(); console.log("NEWLINE"); return "NEWLINE";           }
+<<EOF>>          { return "EOF";     }
+<comment>"\n"    { this.popState(); return "NEWLINE";           }
 <comment>.       { /* ignore anything else inside a comment */  }
 ";"              { this.pushState('comment'); }
 
-[\n]             { console.log("NEWLINE"); return "NEWLINE"; }
+[\n]             { return "NEWLINE"; }
 \s              { /* ignore whitespace */ }
 
-"MOV"            { console.log("MOV"); return "MOV"; }
-"ADD"            { console.log("ADD"); return "ADD"; }
-"SUB"            { console.log("SUB"); return "SUB"; }
-"CMP"            { console.log("CMP"); return "CMP"; }
-"SLT"            { console.log("SLT"); return "SLT"; }
-"JMP"            { console.log("JMP"); return "JMP"; }
-"JMZ"            { console.log("JMZ"); return "JMZ"; }
-"JMN"            { console.log("JMN"); return "JMN"; }
-"DJN"            { console.log("DJN"); return "DJN"; }
-"SPL"            { console.log("SPL"); return "SPL"; }
-"DAT"            { console.log("DAT"); return "DAT"; }
-
-"EQU"            { console.log("EQU"); return "EQU"; }
-"END"            { console.log("END"); return "END"; }
-":"              { console.log(":"); return ":"; }
-","              { console.log(","); return ","; }
-
-"#"              { console.log("#"); return "#"; }
-"@"              { console.log("@"); return "@"; }
-"<"              { console.log("<"); return "<"; }
-"$"              { console.log("$"); return "$"; }
-
-"("              { console.log("("); return "("; }
-")"              { console.log(")"); return ")"; }
-"+"              { console.log("+"); return "+"; }
-"-"              { console.log("-"); return "-"; }
-"*"              { console.log("*"); return "*"; }
-"/"              { console.log("/"); return "/"; }
-[0-9]+           { console.log("NUMBER"); return "NUMBER"; }
-[A-Z][A-Z0-9_]+  { console.log("LABEL"); return "LABEL";  }
+"MOV"            { return "MOV"; }
+"ADD"            { return "ADD"; }
+"SUB"            { return "SUB"; }
+"CMP"            { return "CMP"; }
+"SLT"            { return "SLT"; }
+"JMP"            { return "JMP"; }
+"JMZ"            { return "JMZ"; }
+"JMN"            { return "JMN"; }
+"DJN"            { return "DJN"; }
+"SPL"            { return "SPL"; }
+"DAT"            { return "DAT"; }
+
+"EQU"            { return "EQU"; }
+"END"            { return "END"; }
+","              { return ","; }
+
+"#"              { return "#"; }
+"@"              { return "@"; }
+"<"              { return "<"; }
+"$"              { return "$"; }
+
+"("              { return "("; }
+")"              { return ")"; }
+"+"              { return "+"; }
+"-"              { return "-"; }
+"*"              { return "*"; }
+"/"              { return "/"; }
+[0-9]+           { return "NUMBER"; }
+[A-Z][A-Z0-9_]+  { return "LABEL";  }
 
 /lex
 
@@ -52,8 +51,8 @@
 %%
 
 program
-	: lines END coda { yy.start = 0; console.log($lines); return $lines; }
-	| lines END label coda { yy.start = yy.getLabel($label); console.log($lines); return $lines; }
+	: lines END coda { yy.start = 0; return $lines; }
+	| lines END label coda { yy.start = yy.getLabel($label); return $lines; }
 	;
 
 coda
@@ -93,18 +92,18 @@ line
 row
 	: op 
 	{ 
-		yy.pc += 1;
+		yy.step();
 		$$ = $op; 
 	}
-	| label ":" op
+	| label op
 	{
-		yy.setLabel($label, yy.pc);
-		yy.pc += 1;
+		yy.setLine($label);
+		yy.step();
 		$$ = $op;
 	}
 	| label EQU e
 	{
-		yy.setLabel($label, $e);
+		yy.setEqu($label, $e);
 		$$ = null;
 	}
 	;
@@ -113,6 +112,14 @@ row
 op
 	: opcode address "," address
 	{ $$ = { opcode: $opcode, a: $address1, b: $address2 }; }
+	| opcode address
+	{ 
+		$$ = {
+			opcode: $opcode,
+			a: $address,
+			b: { mode: 'direct', value: 0 },
+		};
+	}
 	;
 
 
-- 
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