- All tests passing

- Updated README and image
- Added itoa to stdlib
- Implemented modulus math for bcc which has none in the stdlib
- Updated the build scripts to work on Ubuntu 22
- Added bochsrc with some useful overrides (new bochs bios in ubuntu is broken, use the legacy)
- Made most of stdlib compile and run under GNU C for testing
- Improved the tokenizer so it will return tokens of more than one character
- Moved the basic parser from using void pointers to store values to using basic_value unions to represent possible types
- Added tests for the basic tokenizer

src/basic.h

@@ -34,14 +34,27 @@
 #define BASIC_TOKENIZER_MAX_LENGTH 512
 #define BASIC_VARNAME_MAX_LENGTH 16
 
+union basic_value {
+  char c;
+  int i;
+  unsigned int uint;
+  /* we don't handle floats yet. need to implement Fcomp, fpushf, fpushd.
+   * float f;
+   */
+  char *str;
+  void *ptr;
+};
+typedef union basic_value basic_value;
+
 struct basic_expr {
   char type;
   char lval_type;
   char rval_type;
   char pad;
-  void *lval;
-  void *rval;
+  basic_value lval;
+  basic_value rval;
 };
+typedef struct basic_expr basic_expr;
 
 #define BASIC_VARFLAG_INIT 1
 #define BASIC_VARFLAG_TINT 2
@@ -50,8 +63,9 @@ struct basic_expr {
 struct basic_variable {
   char *name;
   char flags;
-  void *value;
+  basic_value value;
 };
+typedef struct basic_variable basic_variable;
 
 #define BASIC_CONST_TRUE 1
 #define BASIC_CONST_FALSE 0