update

README.md

@@ -23,6 +23,10 @@ So i tried to write a new interpreter to help them checking syntax error and eve
 I wrote the lexer, parser and runtime(nasal virtual machine/ast-runtime virtual machine) to help checking errors.
 
 They found it easier for them to check errors before copying nasal-codes in nasal-console in Flightgear to test.
+
+# How to Compile
+
+> g++ -std=c++11 main.cpp -o main.exe
   
 # Lexical Analysis
 

main.cpp

@@ -2,7 +2,7 @@
 
 nasal_lexer    lexer;
 nasal_parse    parse;
-nasal_import   preprocessor;
+nasal_import   import;
 nasal_codegen  code_generator;
 std::string    inputfile="null";
 nasal_runtime  runtime;
@@ -96,13 +96,13 @@ void runtime_start()
 		die("parse",inputfile);
 		return;
 	}
-	preprocessor.preprocessing(parse.get_root());
-	if(preprocessor.get_error())
+	import.link(parse.get_root());
+	if(import.get_error())
 	{
 		die("import",inputfile);
 		return;
 	}
-	runtime.set_root(preprocessor.get_root());
+	runtime.set_root(import.get_root());
 	runtime.run();
 	return;
 }
@@ -123,14 +123,14 @@ void codegen_start()
 		die("parse",inputfile);
 		return;
 	}
-	preprocessor.preprocessing(parse.get_root());
-	if(preprocessor.get_error())
+	import.link(parse.get_root());
+	if(import.get_error())
 	{
 		die("import",inputfile);
 		return;
 	}
-	runtime.set_root(preprocessor.get_root());
-	code_generator.output_exec(inputfile+".naexec",preprocessor.get_root());
+	runtime.set_root(import.get_root());
+	code_generator.output_exec(inputfile+".naexec",import.get_root());
 	if(code_generator.get_error())
 	{
 		die("code",inputfile);
@@ -141,13 +141,13 @@ void codegen_start()
 
 void execution_start()
 {
-	code_generator.load_exec(inputfile,preprocessor.get_root());
+	code_generator.load_exec(inputfile,import.get_root());
 	if(code_generator.get_error())
 	{
 		die("code",inputfile);
 		return;
 	}
-	runtime.set_root(preprocessor.get_root());
+	runtime.set_root(import.get_root());
 	runtime.run();
 	return;
 }

nasal_codegen.h

@@ -10,11 +10,14 @@ enum op_code
     op_pushstr,
     op_newvec,op_newhash,op_newfunc,
     op_vecappend,op_hashappend,
+    op_para,op_defaultpara,op_dynamicpara,
     op_unot,op_usub,
     op_add,op_sub,op_mul,op_div,op_lnk,
     op_eq,op_neq,op_less,op_leq,op_grt,op_geq,
+    op_pop,
     op_jmp,op_jmptrue,op_jmpfalse,
-    op_gccall,op_gccallvec,op_gccallhash,op_gccallfunc,op_builtincall,op_slice,
+    op_gccall,op_gccallvec,op_gccallhash,op_gccallfunc,op_builtincall,
+    op_slice,op_slice2,
     op_memcall,op_memcallvec,op_memcallhash,
     op_return,
     op_end

nasal_misc.h

@@ -178,26 +178,6 @@ void prt_hex(const int ptr)
 	}
 	else
 		std::cout<<"0x";
-	/*
-		int: 00000000 00000000 00000000 00000000
-		int: 0x00 00 00 00
-		example:
-			a=0x13 57 9b df
-			a=00010011 01010111 10011011 11011111
-			a & 0x00 00 00 0f:
-				00010011 01010111 10011011 11011111
-			and	00000000 00000000 00000000 00001111
-			---------------------------------------
-				00000000 00000000 00000000 00001111
-			a>>=4:
-				00000001 00110101 01111001 10111101
-			a & 0x00 00 00 0f
-				00000001 00110101 01111001 10111101
-			and 00000000 00000000 00000000 00001111
-			---------------------------------------
-				00000000 00000000 00000000 00001101
-			then convert 0~15 to 0~9 a~f
-	*/
 	for(int j=7;j>=0;--j)
 	{
 		int tmp=(tmp_plc & 0x0000000f);