feat+ref: refactor + new types

include/common/fzl_opcodes.h

@@ -4,17 +4,17 @@
 // Available opcodes
 typedef enum
 {
-  FZL_OPCODE_LOADCONST,    // Load const into T (temp) reg
-  FZL_OPCODE_CALL_BUILTIN, // Call builtin function
-  FZL_OPCODE_PUSHNUM,      // Push number into stack
+  FZL_OPCODE_LOADCONST    = 0xF00001, // Load const into T (temp) reg
+  FZL_OPCODE_CALL_BUILTIN = 0xF00002, // Call builtin function
+  FZL_OPCODE_PUSHNUM      = 0xF00003, // Push number into stack
 
-  FZL_OPCODE_ADD, // Sum two numbers in arg strack
-  FZL_OPCODE_SUB, // Subract two numbers in arg stack
-  FZL_OPCODE_MUL, // Multiply two numbers in arg stack
-  FZL_OPCODE_DIV, // Divide two numbers in arg stack
-  FZL_OPCODE_POW, // Power first number in arg stack by second
-  FZL_OPCODE_MOD, // Get module of two numbers in arg stack
-  FZL_OPCODE_NEG, // Negotiate number in arg stack
+  FZL_OPCODE_ADD = 0xA00001, // Sum two numbers in arg strack
+  FZL_OPCODE_SUB = 0xA00002, // Subract two numbers in arg stack
+  FZL_OPCODE_MUL = 0xA00003, // Multiply two numbers in arg stack
+  FZL_OPCODE_DIV = 0xA00004, // Divide two numbers in arg stack
+  FZL_OPCODE_POW = 0xA00005, // Power first number in arg stack by second
+  FZL_OPCODE_MOD = 0xA00006, // Get module of two numbers in arg stack
+  FZL_OPCODE_NEG = 0xA00007, // Negotiate number in arg stack
 } fzl_opcode_t;
 
 #endif // FZL_OPCODES_H

include/common/fzl_types.h

@@ -3,8 +3,23 @@
 
 typedef enum
 {
+  FZL_TYPE_NULL,
+
   FZL_TYPE_STRING,
-  FZL_TYPE_NUMBER
+  FZL_TYPE_CHAR,
+
+  FZL_TYPE_INT8,
+  FZL_TYPE_UINT8,
+  FZL_TYPE_INT16,
+  FZL_TYPE_UINT16,
+  FZL_TYPE_INT32,
+  FZL_TYPE_UINT32,
+  FZL_TYPE_INT64,
+  FZL_TYPE_UINT64,
+  FZL_TYPE_INT,  // machine word int
+  FZL_TYPE_UINT, // machine word unsigned int
+
+  FZL_TYPE_BOOL
 } fzl_type_t;
 
 #endif // FZL_TYPES_H

include/common/fzl_value.h

@@ -0,0 +1,42 @@
+#ifndef FZL_VALUE_H
+#define FZL_VALUE_H
+
+#include <common/fzl_types.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+// Value container descriptor
+typedef struct
+{
+  fzl_type_t type;
+
+  union
+  {
+    struct
+    {
+      const char *value;
+      size_t length;
+    } s;
+
+    char c;
+    bool b;
+
+    int8_t i8;
+    uint8_t u8;
+
+    int16_t i16;
+    uint16_t u16;
+
+    int32_t i32;
+    uint32_t u32;
+
+    int64_t i64;
+    uint64_t u64;
+
+    intptr_t i;
+    uintptr_t u;
+  } as;
+} fzl_value_t;
+
+#endif // FZL_VALUE_H