Nosfe also likes to place assignments with colons. Fixed assignment symbol detection (again :-/).

src/test/resources/parser/assignment/assignment_with_colon.txt

@@ -0,0 +1,11 @@
+Assembly File: a.asm
+  M68kStatementImpl(STATEMENT)
+    M68kAssignmentImpl(ASSIGNMENT)
+      PsiElement(M68kTokenType.SYMBOLDEF)('FOO')
+      PsiElement(M68kTokenType.COLON)(':')
+      PsiWhiteSpace(' ')
+      PsiElement(M68kTokenType.OP_ASSIGN)('=')
+      PsiWhiteSpace(' ')
+      M68kLiteralExprImpl(LITERAL_EXPR)
+        PsiElement(M68kTokenType.DECIMAL)('123')
+  PsiElement(M68kTokenType.EOL)('\n')

src/test/resources/parser/assignment/assignment_with_colon_and_set.txt

@@ -0,0 +1,11 @@
+Assembly File: a.asm
+  M68kStatementImpl(STATEMENT)
+    M68kAssignmentImpl(ASSIGNMENT)
+      PsiElement(M68kTokenType.SYMBOLDEF)('FOO')
+      PsiElement(M68kTokenType.COLON)(':')
+      PsiWhiteSpace(' ')
+      PsiElement(M68kTokenType.EQU)('set')
+      PsiWhiteSpace(' ')
+      M68kLiteralExprImpl(LITERAL_EXPR)
+        PsiElement(M68kTokenType.DECIMAL)('123')
+  PsiElement(M68kTokenType.EOL)('\n')

src/test/resources/parser/assignment/assignment_with_local_label.txt

@@ -3,6 +3,7 @@ Assembly File: a.asm
     M68kAssignmentImpl(ASSIGNMENT)
       PsiElement(M68kTokenType.SYMBOLDEF)('FOO')
       PsiElement(M68kTokenType.OP_ASSIGN)('=')
+      PsiWhiteSpace(' ')
       M68kBinarySubExprImpl(BINARY_SUB_EXPR)
         M68kRefExprImpl(REF_EXPR)
           PsiElement(M68kTokenType.SYMBOL)('.local')