From 097eca383bca1606457963f367fb4eb2470cba90 Mon Sep 17 00:00:00 2001
From: Garritt McCune <glmccune@gmail.com>
Date: Sat, 1 Oct 2022 20:43:55 -0500
Subject: [PATCH] Fixed a bug with the Scanner adding a blank line via a single
 NewLine Token when a file starts with a block of comments.

---
 docs/document.tex |  6 +++---
 src/scanner.c     | 14 +++++++++++++-
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/docs/document.tex b/docs/document.tex
index f2fa1a8..4bf1568 100644
--- a/docs/document.tex
+++ b/docs/document.tex
@@ -78,8 +78,8 @@
 	\section{STOW (Store Machine Word)}
 		\OpcodeTable{0x20}{stow}{Register}{Address}\\[6pt]
 		Stores a machine word from a register to a memory address.
-	\section{LA (Load Address)}
-		\OpcodeTable{0x00}{la}{Register}{Address}\\[6pt]
+	\section{LAA (Load Absolute Address)}
+		\OpcodeTable{0x00}{laa}{Register}{Address}\\[6pt]
 		Loads an address (2 bytes) into the register.
 	\section{LODB (Load Byte)}
 		\OpcodeTable{0x20}{lodb}{Register}{Register}\\[6pt]
@@ -140,5 +140,5 @@
 		Decrements the contents of the register by one. Under-flows will not be reported.
 	\section{NOP (No Operation)}
 		\OpcodeTable{0x00}{nop}{None}{None}\\[6pt]
-		Skips a clock cycle, incrementing the program counter by one.
+		Skips a clock cycle, incrementing the program counter.
 \end{document}
diff --git a/src/scanner.c b/src/scanner.c
index 0b065e3..d85b34c 100644
--- a/src/scanner.c
+++ b/src/scanner.c
@@ -3,7 +3,7 @@
 #include <string.h>
 
 const char* SourceCode;
-int Line = 0;
+int Line = 1;
 int Position = 0;
 int SourceLength = 0;
 int ScannerAtEnd(void);
@@ -45,6 +45,12 @@ List* GenerateTokenList(const char* source) {
                 break;
             case ';':
                 IgnoreLine();
+
+                if (tokens->size == 0) {
+                    //There's nothing here so that means this is some comments block at the start of the file.
+                    AdvanceScanner(); //Consume the actual new line char.
+                    Line++;
+                }
                 break;
             case '.': //directive like ".org" or ".db"
                 token = ParseDirective();
@@ -77,6 +83,12 @@ List* GenerateTokenList(const char* source) {
         token = NULL;
     }
 
+    token = CreateToken(Line, PunctuationClass);
+
+    token->EndOfFile = 1;
+
+    AddListItem(token, sizeof(Token), tokens);
+
     return tokens;
 }