Feature/strings (#75)

* The assembler supports string opcode

* disabled the string test until implmented

* strings can be printed

1 files changed, 532 insertions, 347 deletions

diff --git a/spasm/src/asm/lexer.cpp b/spasm/src/asm/lexer.cpp
index 5be7836..996762c 100644
--- a/spasm/src/asm/lexer.cpp
+++ b/spasm/src/asm/lexer.cpp
@@ -1,4 +1,4 @@
-/* Generated by re2c 1.1.1 on Thu Nov 22 14:23:32 2018 */
+/* Generated by re2c 1.1.1 on Wed Nov 28 21:13:09 2018 */
 #line 1 "lexer.re"
 #include <iostream>
 
@@ -34,7 +34,7 @@ bool Lexer::tokenize(TokenStream& ts)
 #line 41 "lexer.cpp"
         {
             char yych;
-            if ((limit - cursor) < 6)
+            if ((limit - cursor) < 7)
                 return true;
             yych = *cursor;
             switch (yych)
@@ -45,12 +45,16 @@ bool Lexer::tokenize(TokenStream& ts)
                     goto yy6;
                 case ' ':
                     goto yy8;
-                case '#':
+                case '"':
                     goto yy11;
-                case '-':
+                case '#':
                     goto yy13;
+                case '\'':
+                    goto yy15;
+                case '-':
+                    goto yy17;
                 case '0':
-                    goto yy14;
+                    goto yy18;
                 case '1':
                 case '2':
                 case '3':
@@ -60,9 +64,9 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy16;
+                    goto yy20;
                 case ':':
-                    goto yy18;
+                    goto yy22;
                 case 'A':
                 case 'B':
                 case 'C':
@@ -107,55 +111,55 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 case 'a':
-                    goto yy23;
+                    goto yy27;
                 case 'c':
-                    goto yy24;
+                    goto yy28;
                 case 'd':
-                    goto yy25;
+                    goto yy29;
                 case 'j':
-                    goto yy26;
+                    goto yy30;
                 case 'l':
-                    goto yy27;
+                    goto yy31;
                 case 'm':
-                    goto yy28;
+                    goto yy32;
                 case 'p':
-                    goto yy29;
+                    goto yy33;
                 case 'r':
-                    goto yy30;
+                    goto yy34;
                 case 's':
-                    goto yy31;
+                    goto yy35;
                 default:
                     goto yy4;
             }
         yy2:
             ++cursor;
-#line 274 "lexer.re"
+#line 290 "lexer.re"
             {
                 ts.push_token(Token(Token::EndInput, lineno));
 
                 break;
             }
-#line 126 "lexer.cpp"
+#line 128 "lexer.cpp"
         yy4:
             ++cursor;
         yy5:
-#line 280 "lexer.re"
+#line 296 "lexer.re"
         {
             return false;
         }
-#line 134 "lexer.cpp"
+#line 136 "lexer.cpp"
         yy6:
             ++cursor;
-#line 267 "lexer.re"
+#line 283 "lexer.re"
             {
                 ++lineno;
                 token_start = cursor;
 
                 continue;
             }
-#line 144 "lexer.cpp"
+#line 146 "lexer.cpp"
         yy8:
             ++cursor;
             if (limit <= cursor)
@@ -169,13 +173,13 @@ bool Lexer::tokenize(TokenStream& ts)
                     goto yy10;
             }
         yy10:
-#line 251 "lexer.re"
+#line 267 "lexer.re"
         {
             token_start = cursor;
 
             continue;
         }
-#line 160 "lexer.cpp"
+#line 162 "lexer.cpp"
         yy11:
             ++cursor;
             if (limit <= cursor)
@@ -183,21 +187,49 @@ bool Lexer::tokenize(TokenStream& ts)
             yych = *cursor;
             switch (yych)
             {
-                case '\n':
-                    goto yy32;
+                case '"':
+                    goto yy36;
+                case '\\':
+                    goto yy38;
                 default:
                     goto yy11;
             }
         yy13:
+            ++cursor;
+            if (limit <= cursor)
+                return true;
+            yych = *cursor;
+            switch (yych)
+            {
+                case '\n':
+                    goto yy40;
+                default:
+                    goto yy13;
+            }
+        yy15:
+            ++cursor;
+            if (limit <= cursor)
+                return true;
+            yych = *cursor;
+            switch (yych)
+            {
+                case '\'':
+                    goto yy36;
+                case '\\':
+                    goto yy42;
+                default:
+                    goto yy15;
+            }
+        yy17:
             yych = *++cursor;
             switch (yych)
             {
                 case '0':
-                    goto yy34;
+                    goto yy44;
                 default:
                     goto yy5;
             }
-        yy14:
+        yy18:
             yych = *(marker = ++cursor);
             switch (yych)
             {
@@ -212,23 +244,23 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '8':
                 case '9':
                 case ':':
-                    goto yy36;
+                    goto yy46;
                 case 'X':
                 case 'x':
-                    goto yy38;
+                    goto yy48;
                 default:
-                    goto yy15;
+                    goto yy19;
             }
-        yy15:
-#line 60 "lexer.re"
+        yy19:
+#line 62 "lexer.re"
         {
             ts.push_token(Token(Token::Integer, lineno, token_start, cursor));
             token_start = cursor;
 
             continue;
         }
-#line 202 "lexer.cpp"
-        yy16:
+#line 222 "lexer.cpp"
+        yy20:
             marker = ++cursor;
             if ((limit - cursor) < 2)
                 return true;
@@ -236,7 +268,7 @@ bool Lexer::tokenize(TokenStream& ts)
             switch (yych)
             {
                 case '.':
-                    goto yy39;
+                    goto yy49;
                 case '0':
                 case '1':
                 case '2':
@@ -247,27 +279,27 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy16;
+                    goto yy20;
                 case ':':
-                    goto yy18;
+                    goto yy22;
                 default:
-                    goto yy15;
+                    goto yy19;
             }
-        yy18:
+        yy22:
             ++cursor;
-#line 256 "lexer.re"
+#line 272 "lexer.re"
             {
                 token_start = cursor;
 
                 continue;
             }
-#line 230 "lexer.cpp"
-        yy20:
+#line 250 "lexer.cpp"
+        yy24:
             ++cursor;
             if (limit <= cursor)
                 return true;
             yych = *cursor;
-        yy21:
+        yy25:
             switch (yych)
             {
                 case '0':
@@ -333,25 +365,25 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy22;
+                    goto yy26;
             }
-        yy22:
-#line 243 "lexer.re"
+        yy26:
+#line 252 "lexer.re"
         {
             ts.push_token(Token(Token::Ident, lineno, token_start, cursor));
             token_start = cursor;
 
             continue;
         }
-#line 311 "lexer.cpp"
-        yy23:
+#line 331 "lexer.cpp"
+        yy27:
             yych = *++cursor;
             switch (yych)
             {
                 case '0':
-                    goto yy40;
+                    goto yy50;
                 case '1':
                 case '2':
                 case '3':
@@ -361,84 +393,84 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy42;
+                    goto yy52;
                 case 'd':
-                    goto yy44;
+                    goto yy54;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy24:
+        yy28:
             yych = *++cursor;
             switch (yych)
             {
                 case 'a':
-                    goto yy45;
+                    goto yy55;
                 case 'o':
-                    goto yy46;
+                    goto yy56;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy25:
+        yy29:
             yych = *++cursor;
             switch (yych)
             {
                 case 'i':
-                    goto yy47;
+                    goto yy57;
                 case 'u':
-                    goto yy48;
+                    goto yy58;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy26:
+        yy30:
             yych = *++cursor;
             switch (yych)
             {
                 case 'm':
-                    goto yy49;
+                    goto yy59;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy27:
+        yy31:
             yych = *++cursor;
             switch (yych)
             {
                 case 'a':
-                    goto yy50;
+                    goto yy60;
                 case 'e':
-                    goto yy51;
+                    goto yy61;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy28:
+        yy32:
             yych = *++cursor;
             switch (yych)
             {
                 case 'o':
-                    goto yy52;
+                    goto yy62;
                 case 'u':
-                    goto yy53;
+                    goto yy63;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy29:
+        yy33:
             yych = *++cursor;
             switch (yych)
             {
                 case 'o':
-                    goto yy54;
+                    goto yy64;
                 case 'r':
-                    goto yy55;
+                    goto yy65;
                 case 'u':
-                    goto yy56;
+                    goto yy66;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy30:
+        yy34:
             yych = *++cursor;
             switch (yych)
             {
                 case '0':
-                    goto yy57;
+                    goto yy67;
                 case '1':
                 case '2':
                 case '3':
@@ -448,40 +480,77 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy59;
+                    goto yy69;
                 case 'e':
-                    goto yy61;
+                    goto yy71;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy31:
+        yy35:
             yych = *++cursor;
             switch (yych)
             {
+                case 't':
+                    goto yy72;
                 case 'u':
-                    goto yy62;
+                    goto yy73;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy32:
+        yy36:
+            ++cursor;
+#line 259 "lexer.re"
+            {
+                ts.push_token(Token(Token::StringValue, lineno, token_start + 1,
+                                    cursor - 1));
+                token_start = cursor;
+
+                continue;
+            }
+#line 423 "lexer.cpp"
+        yy38:
+            ++cursor;
+            if (limit <= cursor)
+                return true;
+            yych = *cursor;
+            switch (yych)
+            {
+                case '\\':
+                    goto yy38;
+                default:
+                    goto yy11;
+            }
+        yy40:
             ++cursor;
-#line 261 "lexer.re"
+#line 277 "lexer.re"
             {
                 ++lineno;
                 token_start = cursor;
 
                 continue;
             }
-#line 401 "lexer.cpp"
-        yy34:
+#line 441 "lexer.cpp"
+        yy42:
             ++cursor;
-            goto yy15;
-        yy35:
+            if (limit <= cursor)
+                return true;
+            yych = *cursor;
+            switch (yych)
+            {
+                case '\\':
+                    goto yy42;
+                default:
+                    goto yy15;
+            }
+        yy44:
+            ++cursor;
+            goto yy19;
+        yy45:
             ++cursor;
             if (limit <= cursor)
                 return true;
             yych = *cursor;
-        yy36:
+        yy46:
             switch (yych)
             {
                 case '0':
@@ -494,16 +563,16 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy35;
+                    goto yy45;
                 case ':':
-                    goto yy18;
+                    goto yy22;
                 default:
-                    goto yy37;
+                    goto yy47;
             }
-        yy37:
+        yy47:
             cursor = marker;
-            goto yy15;
-        yy38:
+            goto yy19;
+        yy48:
             yych = *++cursor;
             switch (yych)
             {
@@ -529,16 +598,16 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'd':
                 case 'e':
                 case 'f':
-                    goto yy63;
+                    goto yy74;
                 default:
-                    goto yy37;
+                    goto yy47;
             }
-        yy39:
+        yy49:
             yych = *++cursor;
             switch (yych)
             {
                 case '0':
-                    goto yy66;
+                    goto yy77;
                 case '1':
                 case '2':
                 case '3':
@@ -548,11 +617,11 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy68;
+                    goto yy79;
                 default:
-                    goto yy37;
+                    goto yy47;
             }
-        yy40:
+        yy50:
             yych = *++cursor;
             switch (yych)
             {
@@ -619,12 +688,12 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy41;
+                    goto yy51;
             }
-        yy41:
-#line 84 "lexer.re"
+        yy51:
+#line 86 "lexer.re"
         {
             Token t(Token::Integer, lineno, token_start + 1, cursor);
             t.set_int(-t.value_int());
@@ -632,8 +701,8 @@ bool Lexer::tokenize(TokenStream& ts)
             token_start = cursor;
             continue;
         }
-#line 547 "lexer.cpp"
-        yy42:
+#line 595 "lexer.cpp"
+        yy52:
             ++cursor;
             if (limit <= cursor)
                 return true;
@@ -650,7 +719,7 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy42;
+                    goto yy52;
                 case 'A':
                 case 'B':
                 case 'C':
@@ -704,130 +773,130 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy41;
+                    goto yy51;
             }
-        yy44:
+        yy54:
             yych = *++cursor;
             switch (yych)
             {
                 case 'd':
-                    goto yy70;
+                    goto yy81;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy45:
+        yy55:
             yych = *++cursor;
             switch (yych)
             {
                 case 'l':
-                    goto yy72;
+                    goto yy83;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy46:
+        yy56:
             yych = *++cursor;
             switch (yych)
             {
                 case 'n':
-                    goto yy73;
+                    goto yy84;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy47:
+        yy57:
             yych = *++cursor;
             switch (yych)
             {
                 case 'v':
-                    goto yy74;
+                    goto yy85;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy48:
+        yy58:
             yych = *++cursor;
             switch (yych)
             {
                 case 'p':
-                    goto yy76;
+                    goto yy87;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy49:
+        yy59:
             yych = *++cursor;
             switch (yych)
             {
                 case 'p':
-                    goto yy78;
+                    goto yy89;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy50:
+        yy60:
             yych = *++cursor;
             switch (yych)
             {
                 case 'b':
-                    goto yy80;
+                    goto yy91;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy51:
+        yy61:
             yych = *++cursor;
             switch (yych)
             {
                 case 'q':
-                    goto yy81;
+                    goto yy92;
                 case 's':
-                    goto yy83;
+                    goto yy94;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy52:
+        yy62:
             yych = *++cursor;
             switch (yych)
             {
                 case 'd':
-                    goto yy84;
+                    goto yy95;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy53:
+        yy63:
             yych = *++cursor;
             switch (yych)
             {
                 case 'l':
-                    goto yy86;
+                    goto yy97;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy54:
+        yy64:
             yych = *++cursor;
             switch (yych)
             {
                 case 'p':
-                    goto yy88;
+                    goto yy99;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy55:
+        yy65:
             yych = *++cursor;
             switch (yych)
             {
                 case 'i':
-                    goto yy90;
+                    goto yy101;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy56:
+        yy66:
             yych = *++cursor;
             switch (yych)
             {
                 case 's':
-                    goto yy91;
+                    goto yy102;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy57:
+        yy67:
             yych = *++cursor;
             switch (yych)
             {
@@ -894,12 +963,12 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy58;
+                    goto yy68;
             }
-        yy58:
-#line 77 "lexer.re"
+        yy68:
+#line 79 "lexer.re"
         {
             ts.push_token(
                 Token(Token::Integer, lineno, token_start + 1, cursor));
@@ -907,8 +976,8 @@ bool Lexer::tokenize(TokenStream& ts)
 
             continue;
         }
-#line 774 "lexer.cpp"
-        yy59:
+#line 822 "lexer.cpp"
+        yy69:
             ++cursor;
             if (limit <= cursor)
                 return true;
@@ -925,7 +994,7 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy59;
+                    goto yy69;
                 case 'A':
                 case 'B':
                 case 'C':
@@ -979,31 +1048,40 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy58;
+                    goto yy68;
             }
-        yy61:
+        yy71:
             yych = *++cursor;
             switch (yych)
             {
                 case 'a':
-                    goto yy92;
+                    goto yy103;
                 case 't':
-                    goto yy93;
+                    goto yy104;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy62:
+        yy72:
+            yych = *++cursor;
+            switch (yych)
+            {
+                case 'r':
+                    goto yy106;
+                default:
+                    goto yy25;
+            }
+        yy73:
             yych = *++cursor;
             switch (yych)
             {
                 case 'b':
-                    goto yy95;
+                    goto yy107;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy63:
+        yy74:
             ++cursor;
             if (limit <= cursor)
                 return true;
@@ -1032,23 +1110,23 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'd':
                 case 'e':
                 case 'f':
-                    goto yy63;
+                    goto yy74;
                 default:
-                    goto yy65;
+                    goto yy76;
             }
-        yy65:
-#line 93 "lexer.re"
+        yy76:
+#line 95 "lexer.re"
         {
             ts.push_token(Token(Token::XInteger, lineno, token_start, cursor));
             token_start = cursor;
 
             continue;
         }
-#line 896 "lexer.cpp"
-        yy66:
+#line 950 "lexer.cpp"
+        yy77:
             ++cursor;
-        yy67:
-#line 68 "lexer.re"
+        yy78:
+#line 70 "lexer.re"
         {
             ts.push_token(
                 Token(Token::FloatingPoint, lineno, token_start, cursor));
@@ -1056,8 +1134,8 @@ bool Lexer::tokenize(TokenStream& ts)
 
             continue;
         }
-#line 909 "lexer.cpp"
-        yy68:
+#line 963 "lexer.cpp"
+        yy79:
             ++cursor;
             if (limit <= cursor)
                 return true;
@@ -1074,11 +1152,11 @@ bool Lexer::tokenize(TokenStream& ts)
                 case '7':
                 case '8':
                 case '9':
-                    goto yy68;
+                    goto yy79;
                 default:
-                    goto yy67;
+                    goto yy78;
             }
-        yy70:
+        yy81:
             yych = *++cursor;
             switch (yych)
             {
@@ -1145,38 +1223,38 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy71;
+                    goto yy82;
             }
-        yy71:
-#line 147 "lexer.re"
+        yy82:
+#line 149 "lexer.re"
         {
             ts.push_token(Token(Token::Add, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1003 "lexer.cpp"
-        yy72:
+#line 1057 "lexer.cpp"
+        yy83:
             yych = *++cursor;
             switch (yych)
             {
                 case 'l':
-                    goto yy97;
+                    goto yy109;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy73:
+        yy84:
             yych = *++cursor;
             switch (yych)
             {
                 case 's':
-                    goto yy99;
+                    goto yy111;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy74:
+        yy85:
             yych = *++cursor;
             switch (yych)
             {
@@ -1243,20 +1321,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy75;
+                    goto yy86;
             }
-        yy75:
-#line 168 "lexer.re"
+        yy86:
+#line 170 "lexer.re"
         {
             ts.push_token(Token(Token::Div, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1092 "lexer.cpp"
-        yy76:
+#line 1146 "lexer.cpp"
+        yy87:
             yych = *++cursor;
             switch (yych)
             {
@@ -1323,20 +1401,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy77;
+                    goto yy88;
             }
-        yy77:
-#line 126 "lexer.re"
+        yy88:
+#line 128 "lexer.re"
         {
             ts.push_token(Token(Token::Dup, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1169 "lexer.cpp"
-        yy78:
+#line 1223 "lexer.cpp"
+        yy89:
             yych = *++cursor;
             switch (yych)
             {
@@ -1401,33 +1479,33 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 case 'f':
-                    goto yy100;
+                    goto yy112;
                 case 't':
-                    goto yy102;
+                    goto yy114;
                 default:
-                    goto yy79;
+                    goto yy90;
             }
-        yy79:
-#line 196 "lexer.re"
+        yy90:
+#line 198 "lexer.re"
         {
             ts.push_token(Token(Token::Jump, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1246 "lexer.cpp"
-        yy80:
+#line 1300 "lexer.cpp"
+        yy91:
             yych = *++cursor;
             switch (yych)
             {
                 case 'e':
-                    goto yy104;
+                    goto yy116;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy81:
+        yy92:
             yych = *++cursor;
             switch (yych)
             {
@@ -1494,29 +1572,29 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy82;
+                    goto yy93;
             }
-        yy82:
-#line 223 "lexer.re"
+        yy93:
+#line 232 "lexer.re"
         {
             ts.push_token(Token(Token::LessEq, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1329 "lexer.cpp"
-        yy83:
+#line 1383 "lexer.cpp"
+        yy94:
             yych = *++cursor;
             switch (yych)
             {
                 case 's':
-                    goto yy105;
+                    goto yy117;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy84:
+        yy95:
             yych = *++cursor;
             switch (yych)
             {
@@ -1583,20 +1661,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy85;
+                    goto yy96;
             }
-        yy85:
-#line 175 "lexer.re"
+        yy96:
+#line 177 "lexer.re"
         {
             ts.push_token(Token(Token::Mod, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1412 "lexer.cpp"
-        yy86:
+#line 1466 "lexer.cpp"
+        yy97:
             yych = *++cursor;
             switch (yych)
             {
@@ -1663,20 +1741,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy87;
+                    goto yy98;
             }
-        yy87:
-#line 161 "lexer.re"
+        yy98:
+#line 163 "lexer.re"
         {
             ts.push_token(Token(Token::Mul, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1489 "lexer.cpp"
-        yy88:
+#line 1543 "lexer.cpp"
+        yy99:
             yych = *++cursor;
             switch (yych)
             {
@@ -1742,49 +1820,49 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 case 'r':
-                    goto yy107;
+                    goto yy119;
                 default:
-                    goto yy89;
+                    goto yy100;
             }
-        yy89:
-#line 113 "lexer.re"
+        yy100:
+#line 115 "lexer.re"
         {
             ts.push_token(Token(Token::Pop, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1566 "lexer.cpp"
-        yy90:
+#line 1620 "lexer.cpp"
+        yy101:
             yych = *++cursor;
             switch (yych)
             {
                 case 'n':
-                    goto yy109;
+                    goto yy121;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy91:
+        yy102:
             yych = *++cursor;
             switch (yych)
             {
                 case 'h':
-                    goto yy110;
+                    goto yy122;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy92:
+        yy103:
             yych = *++cursor;
             switch (yych)
             {
                 case 'd':
-                    goto yy112;
+                    goto yy124;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy93:
+        yy104:
             yych = *++cursor;
             switch (yych)
             {
@@ -1851,20 +1929,29 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy94;
+                    goto yy105;
             }
-        yy94:
-#line 216 "lexer.re"
+        yy105:
+#line 225 "lexer.re"
         {
             ts.push_token(Token(Token::Ret, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1661 "lexer.cpp"
-        yy95:
+#line 1715 "lexer.cpp"
+        yy106:
+            yych = *++cursor;
+            switch (yych)
+            {
+                case 'i':
+                    goto yy126;
+                default:
+                    goto yy25;
+            }
+        yy107:
             yych = *++cursor;
             switch (yych)
             {
@@ -1931,20 +2018,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy96;
+                    goto yy108;
             }
-        yy96:
-#line 154 "lexer.re"
+        yy108:
+#line 156 "lexer.re"
         {
             ts.push_token(Token(Token::Sub, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1738 "lexer.cpp"
-        yy97:
+#line 1798 "lexer.cpp"
+        yy109:
             yych = *++cursor;
             switch (yych)
             {
@@ -2011,29 +2098,29 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy98;
+                    goto yy110;
             }
-        yy98:
-#line 209 "lexer.re"
+        yy110:
+#line 218 "lexer.re"
         {
             ts.push_token(Token(Token::Call, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1815 "lexer.cpp"
-        yy99:
+#line 1875 "lexer.cpp"
+        yy111:
             yych = *++cursor;
             switch (yych)
             {
                 case 't':
-                    goto yy114;
+                    goto yy127;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy100:
+        yy112:
             yych = *++cursor;
             switch (yych)
             {
@@ -2100,20 +2187,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy101;
+                    goto yy113;
             }
-        yy101:
-#line 189 "lexer.re"
+        yy113:
+#line 191 "lexer.re"
         {
             ts.push_token(Token(Token::JumpF, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1898 "lexer.cpp"
-        yy102:
+#line 1958 "lexer.cpp"
+        yy114:
             yych = *++cursor;
             switch (yych)
             {
@@ -2180,29 +2267,29 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy103;
+                    goto yy115;
             }
-        yy103:
-#line 182 "lexer.re"
+        yy115:
+#line 184 "lexer.re"
         {
             ts.push_token(Token(Token::JumpT, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 1975 "lexer.cpp"
-        yy104:
+#line 2035 "lexer.cpp"
+        yy116:
             yych = *++cursor;
             switch (yych)
             {
                 case 'l':
-                    goto yy116;
+                    goto yy129;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy105:
+        yy117:
             yych = *++cursor;
             switch (yych)
             {
@@ -2269,20 +2356,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy106;
+                    goto yy118;
             }
-        yy106:
-#line 229 "lexer.re"
+        yy118:
+#line 238 "lexer.re"
         {
             ts.push_token(Token(Token::Less, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2058 "lexer.cpp"
-        yy107:
+#line 2118 "lexer.cpp"
+        yy119:
             yych = *++cursor;
             switch (yych)
             {
@@ -2349,29 +2436,29 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy108;
+                    goto yy120;
             }
-        yy108:
-#line 119 "lexer.re"
+        yy120:
+#line 121 "lexer.re"
         {
             ts.push_token(Token(Token::PopTo, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2135 "lexer.cpp"
-        yy109:
+#line 2195 "lexer.cpp"
+        yy121:
             yych = *++cursor;
             switch (yych)
             {
                 case 't':
-                    goto yy118;
+                    goto yy131;
                 default:
-                    goto yy21;
+                    goto yy25;
             }
-        yy110:
+        yy122:
             yych = *++cursor;
             switch (yych)
             {
@@ -2437,22 +2524,22 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 case 'r':
-                    goto yy120;
+                    goto yy133;
                 default:
-                    goto yy111;
+                    goto yy123;
             }
-        yy111:
-#line 107 "lexer.re"
+        yy123:
+#line 109 "lexer.re"
         {
             ts.push_token(Token(Token::Push, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2218 "lexer.cpp"
-        yy112:
+#line 2278 "lexer.cpp"
+        yy124:
             yych = *++cursor;
             switch (yych)
             {
@@ -2519,20 +2606,29 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy113;
+                    goto yy125;
             }
-        yy113:
-#line 133 "lexer.re"
+        yy125:
+#line 135 "lexer.re"
         {
             ts.push_token(Token(Token::Read, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2295 "lexer.cpp"
-        yy114:
+#line 2355 "lexer.cpp"
+        yy126:
+            yych = *++cursor;
+            switch (yych)
+            {
+                case 'n':
+                    goto yy135;
+                default:
+                    goto yy25;
+            }
+        yy127:
             yych = *++cursor;
             switch (yych)
             {
@@ -2599,20 +2695,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy115;
+                    goto yy128;
             }
-        yy115:
-#line 202 "lexer.re"
+        yy128:
+#line 204 "lexer.re"
         {
             ts.push_token(Token(Token::Const, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2372 "lexer.cpp"
-        yy116:
+#line 2438 "lexer.cpp"
+        yy129:
             yych = *++cursor;
             switch (yych)
             {
@@ -2679,20 +2775,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy117;
+                    goto yy130;
             }
-        yy117:
-#line 236 "lexer.re"
+        yy130:
+#line 245 "lexer.re"
         {
             ts.push_token(Token(Token::Label, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2449 "lexer.cpp"
-        yy118:
+#line 2515 "lexer.cpp"
+        yy131:
             yych = *++cursor;
             switch (yych)
             {
@@ -2759,20 +2855,20 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy119;
+                    goto yy132;
             }
-        yy119:
-#line 140 "lexer.re"
+        yy132:
+#line 142 "lexer.re"
         {
             ts.push_token(Token(Token::Print, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2526 "lexer.cpp"
-        yy120:
+#line 2592 "lexer.cpp"
+        yy133:
             yych = *++cursor;
             switch (yych)
             {
@@ -2839,21 +2935,110 @@ bool Lexer::tokenize(TokenStream& ts)
                 case 'x':
                 case 'y':
                 case 'z':
-                    goto yy20;
+                    goto yy24;
                 default:
-                    goto yy121;
+                    goto yy134;
             }
-        yy121:
-#line 101 "lexer.re"
+        yy134:
+#line 103 "lexer.re"
         {
             ts.push_token(Token(Token::PushFrom, lineno));
             token_start = cursor;
 
             continue;
         }
-#line 2603 "lexer.cpp"
+#line 2669 "lexer.cpp"
+        yy135:
+            yych = *++cursor;
+            switch (yych)
+            {
+                case 'g':
+                    goto yy136;
+                default:
+                    goto yy25;
+            }
+        yy136:
+            yych = *++cursor;
+            switch (yych)
+            {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                case '4':
+                case '5':
+                case '6':
+                case '7':
+                case '8':
+                case '9':
+                case 'A':
+                case 'B':
+                case 'C':
+                case 'D':
+                case 'E':
+                case 'F':
+                case 'G':
+                case 'H':
+                case 'I':
+                case 'J':
+                case 'K':
+                case 'L':
+                case 'M':
+                case 'N':
+                case 'O':
+                case 'P':
+                case 'Q':
+                case 'R':
+                case 'S':
+                case 'T':
+                case 'U':
+                case 'V':
+                case 'W':
+                case 'X':
+                case 'Y':
+                case 'Z':
+                case '_':
+                case 'a':
+                case 'b':
+                case 'c':
+                case 'd':
+                case 'e':
+                case 'f':
+                case 'g':
+                case 'h':
+                case 'i':
+                case 'j':
+                case 'k':
+                case 'l':
+                case 'm':
+                case 'n':
+                case 'o':
+                case 'p':
+                case 'q':
+                case 'r':
+                case 's':
+                case 't':
+                case 'u':
+                case 'v':
+                case 'w':
+                case 'x':
+                case 'y':
+                case 'z':
+                    goto yy24;
+                default:
+                    goto yy137;
+            }
+        yy137:
+#line 211 "lexer.re"
+        {
+            ts.push_token(Token(Token::String, lineno));
+            token_start = cursor;
+
+            continue;
+        }
+#line 2752 "lexer.cpp"
         }
-#line 284 "lexer.re"
+#line 300 "lexer.re"
     }
     return true;
 }