This is where the theoretical architecture becomes a concrete, executable
reality. Because our ultimate target includes x86-32, the entire Blueprint
will be structured around 32-bit (4-byte) boundaries. This makes it natively
accessible via an Int32Array in JavaScript and directly memory-mappable in
your Ring 0 kernel.
Here is the exact binary specification for the Blueprint file and the
instruction layout to execute "Hello World."
1. The Blueprint Binary Header (32-bit aligned)
The Blueprint is a contiguous block of memory. When your JS Compiler finishes,
it emits exactly this structure.
| Offset | Size (Bytes) | Field Name | Description |
|---|---|---|---|
| 0x00 | 4 | Magic Number | 0x4C504331 (ASCII "LPC1") - Validates the file. |
| 0x04 | 4 | Total Size | Total size of the blueprint in bytes. |
| 0x08 | 4 | Variable Count | Number of global variables (used by Host to
allocate Instance Variable Arrays). |
| 0x0C | 4 | Export Table Offset | Byte offset from file start to the Export
(Function) Table. |
| 0x10 | 4 | Const Pool Offset | Byte offset from file start to the Constant
Pool. |
| 0x14 | 4 | Bytecode Offset | Byte offset from file start to the Bytecode
array. |
2. The Internal Segments
Following the header, the file contains the three critical data segments:
A. The Export Table (VTable)
An array of 8-byte entries defining callable functions.
 * [ 4 bytes: Function Name Hash (e.g., hash("main")) ]
 * [ 4 bytes: Bytecode Instruction Index (Where the function starts) ]
B. The Constant Pool
This stores static data defined in the script. When the Host OS loads the
Blueprint, it reads this section, registers the strings in the Global Handle
Ledger, and caches the resulting Tagged Pointers.
 * [ 2 bytes: Number of Constants ]
 * [ N bytes: Null-terminated UTF-8 strings or raw numbers ]
C. The Bytecode Segment
The contiguous array of 32-bit instructions.
3. The Instruction Bit-Level Architecture
Every opcode in our VM is exactly 32 bits, structured sequentially from Most
Significant Byte (MSB) to Least Significant Byte (LSB).
Assuming standard Little-Endian encoding (x86 native):
| Bits (31-24) | Bits (23-20) | Bits (19-16) | Bits (15-0) |
|---|---|---|---|
| OPCODE | DEST_REG | SRC_REG | IMMEDIATE / OFFSET |
| 8 bits (0-255) | 4 bits (0-15) | 4 bits (0-15) | 16 bits (0-65535) |
 * R0: Accumulator / Return Value (0x0)
 * R1: Argument 1 (0x1)
 * R2-R7: General / Spill registers
4. The Core Opcodes for "Hello World"
To execute write("Hello HAUKI!");, we only need three opcodes defined in our
specification.
0x01 : LOAD_CONST
Loads a Tagged Pointer from the Blueprint's initialized constant pool into a
register.
 * DEST_REG: The register to load into (e.g., R1 for arg 1).
 * SRC_REG: Ignored (0x0).
 * IMMEDIATE: The 16-bit index of the constant in the pool.
0x15 : SYSCALL
Yields to the Host OS to execute a hardcoded Efun from the Interrupt Vector
Table.
 * DEST_REG: The register to receive the return value (usually R0).
 * SRC_REG: Ignored (0x0).
 * IMMEDIATE: The IVT index of the Efun (e.g., 0x0001 for write).
 * Note: ABI dictates that before calling this, arguments must be placed in
R1, R2, etc.
0x0F : RETURN
Pops the current Shadow Stack frame. If the stack is empty, it halts execution
and yields cleanly to the Host.
 * DEST_REG: Ignored (0x0).
 * SRC_REG: Ignored (0x0).
 * IMMEDIATE: Ignored (0x0000).
5. The "Hello World" Hex Dump
If we compile our test script, assuming "Hello HAUKI!" is at Constant Index 0
and write is Efun ID 1, the exact 32-bit bytecode array generated by the
compiler looks like this:
Instruction 1: LOAD_CONST R1, 0
[ 0x01 ] [ 0x1 ] [ 0x0 ] [ 0x0000 ] -> 0x01100000 

Instruction 2: SYSCALL R0, 1
[ 0x15 ] [ 0x0 ] [ 0x0 ] [ 0x0001 ] -> 0x15000001 

Instruction 3: RETURN
[ 0x0F ] [ 0x0 ] [ 0x0 ] [ 0x0000 ] -> 0x0F000000 

When you pass this array to the execution loop, the VM reads 0x01100000. It
masks the first byte 0x01, identifies LOAD_CONST, extracts the 1 for R1, and
places the String Handle for "Hello HAUKI!" into R1.
Next, it reads 0x15000001, identifies the SYSCALL, suspends the JIT, looks up
IVT ID 1, and passes R1 to your Host environment's console.log or raw video
buffer routine.