bytecode2 (#2)

Reviewed-on: #2

doc/BYTECODE

@@ -0,0 +1,35 @@
+Bytecode format
+---------------
+
+The bytecode file is composed of the following sections:
+
+ * HEADER: 16-byte header
+            [0:3]:  Magic
+            [4]:    VM format
+            [rest]: Reserved for future use
+ * TABLE_OF_CONTENTS: list of 8 records pointing to each one of the sections
+            Each record (6 bytes):
+            - Pointer to section: 4 bytes
+            - Number of records in section: 2 bytes
+ * [0x0] Constants indexes: pointers to each of the constant locations
+            * Table of 4-byte constant indexes with pointer to constant
+                (counter start at beginning of raw constants)
+ * [0x1] Functions indexes: Pointer to functions within the code
+            [0:3]: function pointer (counter start at the beginning of executable code)
+            [4:5]: number of parameters
+            [6:7]: number of local variables
+            [8:b]: function size
+ * [0x2] Constants raw data
+ * [0x3] Code: executable code
+ * [0x4] Debugging info
+            ???
+
+The max file size is 2 Gb.
+
+## Values can be encoded in the following ways:
+ * The type is defined by the operator.
+ * Encoding varies according to the type:
+    int:    use protobuf format
+    float:  4-bit floating point
+    string: int-defined length, followed by the string proper - no null terminator
+ * Constant indexes and function ids are encoded as ints

doc/OPCODES

@@ -4,7 +4,6 @@ Operations
 Stack operations: (0x00~0x1f)
    pushn [int]          Push int
    pushr [float]        Push float (real)
-   pushs [string]       Push string
    pshcn [index]        Push int from constant list
    pshcr [index]        Push float from constant list
    pshcs [index]        Push string from constant list
@@ -74,38 +73,6 @@ Error handling: (0xa0~0xaf)
    ???
 
 
-Bytecode format
----------------
-
-The bytecode file is composed of the following sections:
-
- * [0x0] 16-byte header
-            [00]: VM format
-            [??]: reserved
- * [0x1] Index: pointers to each one of the sections, up to 8
-            Each pointer: 4 bits
- * [0x2] Constants: all constants (such as strings) used in the code
-            * Table of 4-bit constant indexes with pointer to constant
-            * Raw constant data
- * [0x3] Functions: Pointer to functions within the code
-            [0:3]: function pointer
-            [4:5]: number of parameters
-            [6:7]: number of local variables
- * [0x4] Code: executable code
-            [1-byte]:   operation
-            [variable]: operand (see value encoding below)
- * [0x5] Debugging info
-            ???
-
-The max file size is 2 Gb.
-
-## Values can be encoded in the following ways:
- * The type is defined by the operator.
- * Encoding varies according to the type:
-    int:    use protobuf format
-    float:  4-bit floating point
-    string: int-defined length, followed by the string proper - no null terminator
- * Constant indexes and function ids are encoded as ints
 
 
 Internal handling of values