ForgeVM follows a staged engineering roadmap designed to keep development focused, measurable, and technically credible.

Each stage must produce:

  • Working software
  • Automated tests
  • Technical documentation
  • Reproducible builds
  • Clearly defined limitations
  • Publicly verifiable releases

The project will not expand into additional architectures or language integrations before its current foundation has been demonstrated through usable artifacts.

A roadmap stage is complete only when implementation, tests, and reproducible results prove it.

Roadmap Principles

ForgeVM development is guided by several core principles.

Implementation Before Expansion

New targets will not be added merely to increase the apparent scope of the project.

Each layer must become stable enough to support the next one.

Tests Before Claims

Technical claims must be supported by:

  • Source code
  • Conformance tests
  • Example outputs
  • Release artifacts
  • Build instructions
  • Known-limitations documentation

Narrow and Verifiable Progress

The roadmap remains intentionally narrow.

ForgeVM will prioritize complete and testable capabilities over broad but unfinished feature lists.

Stage 1 — x86-64 Assembler Foundation

The first stage establishes the intelligent assembler core using x86-64 as the initial architecture.

x86-64 is a strong proving ground because it includes:

  • Complex instruction encodings
  • Numerous operand combinations
  • Legacy compatibility rules
  • Multiple addressing modes
  • Architectural extensions
  • Platform-specific relocation requirements

The purpose of this stage is to build a reliable foundation for later optimization, linking, analysis, and additional targets.

Declarative Machine Descriptions

ForgeVM will define x86-64 instructions through structured machine descriptions.

These descriptions should represent:

  • Registers and register classes
  • Operand types
  • Instruction forms
  • Opcode encodings
  • Prefix requirements
  • Immediate ranges
  • Memory-addressing rules
  • Processor feature constraints
  • Privilege restrictions
  • Relocation requirements

The same descriptions should support:

  • Parsing
  • Validation
  • Encoding
  • Decoding
  • Diagnostics
  • Documentation
  • Test generation

This avoids duplicating instruction knowledge across unrelated components.

Parsing and Validation

The assembler must distinguish valid source syntax from valid machine instructions.

Validation should identify problems such as:

  • Invalid operand combinations
  • Mismatched register widths
  • Unsupported addressing forms
  • Out-of-range immediates
  • Missing architectural extensions
  • Invalid relocation expressions
  • Incorrect section usage

Diagnostics should explain the problem precisely rather than returning a generic assembly failure.

Example:

TEXT
Invalid operand combination for mov:
destination is an 8-bit register,
but the source is a 64-bit register.

Verified Machine-Code Encoding

The encoder must produce exact and reproducible instruction bytes.

Each supported instruction form should be verified through automated tests.

Example:

TEXT
Instruction:
    add rax, rbx

Expected encoding:
    48 01 D8

Generated encoding:
    48 01 D8

Result:
    PASS

Tests should cover:

  • Valid encodings
  • Invalid operands
  • Alternative instruction forms
  • Immediate boundaries
  • Memory addressing
  • Processor extensions
  • Exact output bytes

The same source and configuration must produce the same machine-code output across repeated builds.

Internal Representation

ForgeVM requires a structured internal representation that preserves low-level intent.

It should retain information such as:

  • Instruction identity
  • Operand roles
  • Register classes
  • Immediate values
  • Memory expressions
  • Labels
  • Symbols
  • Sections
  • Relocation intent
  • Source locations
  • Required processor features

This representation should be more precise than assembly text while remaining close to the final instruction stream.

It becomes the foundation for later optimization, analysis, and binary construction.

Stage 1 Deliverables

Stage 1 should produce:

  • An x86-64 machine-description system
  • A parser and validator
  • A verified instruction encoder
  • Clear diagnostic reporting
  • A stable instruction representation
  • Initial object-file emission
  • Automated conformance tests
  • Reproducible example programs

Stage 1 is not complete until these capabilities are available through public, testable releases.

Stage 2 — Optimization and Binary Construction

The second stage expands ForgeVM from instruction encoding into binary-level transformation and program construction.

The focus moves from individual instructions to complete code sections, objects, symbols, relocations, and executable layouts.

Instruction-Level Optimization

ForgeVM will provide optimization services close to the final machine-code representation.

Possible transformations include:

  • Redundant move elimination
  • Constant folding
  • Instruction simplification
  • Dead-code removal
  • Branch shortening
  • Immediate-size reduction
  • Alignment adjustment
  • Local instruction reordering
  • Code-layout optimization

Optimizations should be measurable.

Reports may include:

TEXT
Removed redundant instruction:
    mov rax, rax

Function:
    calculate_total

Effect:
    3 bytes removed

Every optimization must preserve correctness and pass the same validation and execution tests applied before the transformation.

Sections, Symbols, and Relocations

ForgeVM must manage the structures required to build linkable native components.

This includes:

  • Code and data sections
  • Local and global symbols
  • External references
  • Relocation entries
  • Section alignment
  • Import and export information
  • Read, write, and execute permissions

Relocation support is essential when final addresses are unknown during assembly.

For example:

ASM
call external_function

The assembler cannot always determine the final destination. It must record enough information for a linker or loader to resolve the reference later.

Object and Executable Construction

Stage 2 should introduce infrastructure for producing complete binary artifacts.

Initial work may include:

  • ELF object files
  • Relocatable code
  • Static executable construction
  • Entry-point definition
  • Segment layout
  • Symbol resolution
  • Relocation application

Later support may extend to additional formats such as PE/COFF and Mach-O.

Object-format support must remain clearly separated from instruction encoding because the same x86-64 instructions can be packaged differently for Linux, Windows, and macOS.

Disassembly and Binary Inspection

ForgeVM should be able to inspect the binaries it creates.

Analysis tools should expose:

  • Encoded instructions
  • Section contents
  • Symbols
  • Relocations
  • Control-flow relationships
  • Instruction offsets
  • Required architectural features
  • Binary-size measurements

Example:

TEXT
Offset:      0x00000020
Bytes:       48 01 D8
Instruction: add rax, rbx
Reads:       rax, rbx
Writes:      rax, flags

These services support debugging, verification, education, compiler development, and release testing.

Stage 2 Deliverables

Stage 2 should produce:

  • Instruction-level optimization passes
  • Symbol and relocation infrastructure
  • Section and object composition
  • Initial linker-oriented services
  • Executable construction experiments
  • A disassembler
  • Binary inspection tools
  • Debugging and analysis reports
  • Reproducible binary tests

Stage 3 — WebAssembly as a First-Class Target

WebAssembly is a major ForgeVM execution target, not a secondary export option.

Stage 3 extends the project beyond native machine code while preserving the same engineering principles:

  • Structured representations
  • Validation
  • Optimization
  • Precise diagnostics
  • Reproducible output
  • Testable binary construction

WebAssembly Module Generation

ForgeVM should provide APIs for constructing modules containing:

  • Function types
  • Functions
  • Local variables
  • Linear memory
  • Tables
  • Imports
  • Exports
  • Global values
  • Data segments
  • Custom sections

The system should handle binary details such as:

  • Section ordering
  • Index spaces
  • Variable-length encodings
  • Function signatures
  • Control-flow structure
  • Module serialization

Developers should not need to manually construct raw module bytes.

Validation and Diagnostics

Generated and transformed modules must be validated before delivery.

Validation should detect:

  • Type-stack errors
  • Invalid branch targets
  • Unknown indexes
  • Malformed sections
  • Incorrect imports or exports
  • Unsupported WebAssembly features
  • Invalid instruction sequences

Diagnostics should identify the exact function, instruction, section, and reason for failure.

Analysis and Optimization

ForgeVM should support WebAssembly analysis and transformation services such as:

  • Dead-function removal
  • Constant folding
  • Control-flow simplification
  • Import and export rewriting
  • Binary-size analysis
  • Custom-section inspection
  • Deterministic re-encoding
  • Module comparison
  • Instrumentation injection

WebAssembly optimization must remain testable against module validity, behavior, size, and reproducibility.

Shared Infrastructure

Native and WebAssembly targets use different execution models, but some infrastructure may be shared.

Common concepts include:

  • Instruction representations
  • Validation pipelines
  • Symbol management
  • Diagnostics
  • Optimization passes
  • Binary encoding
  • Debug metadata
  • Reproducible builds
  • Automated testing

ForgeVM should reuse these concepts where practical without treating WebAssembly as native code or ignoring its distinct runtime model.

Stage 3 Deliverables

Stage 3 should produce:

  • WebAssembly module-construction APIs
  • Binary encoding and decoding
  • Module validation
  • Inspection utilities
  • Optimization passes
  • Transformation services
  • Structured diagnostics
  • Runtime test suites
  • Reproducible module releases

Stage 4 — Language and Architecture Expansion

Only after the earlier stages are proven should ForgeVM expand into additional languages and processor architectures.

This stage broadens the project while preserving the same tested core infrastructure.

Language Interfaces

ForgeVM may provide interfaces for:

  • C
  • C++
  • Rust
  • Zig
  • Experimental languages
  • Compiler research projects

These interfaces may expose services for:

  • Instruction construction
  • Object generation
  • Optimization
  • Linking
  • Binary inspection
  • WebAssembly generation
  • Diagnostics

The goal is not to replace complete language frontends immediately.

The goal is to provide reliable backend infrastructure that language and compiler developers can use.

Additional Architectures

Planned architecture targets include:

  • ARM
  • AArch64
  • RISC-V

Each architecture requires its own:

  • Register model
  • Instruction descriptions
  • Encoding rules
  • Operand constraints
  • Relocation mappings
  • ABI adapters
  • Object-format integration
  • Test suites

Architecture support will be added incrementally.

A target will not be described as supported merely because preliminary instruction tables or experimental encoders exist.

Broader Toolchain Infrastructure

Stage 4 may also expand:

  • Optimizer capabilities
  • Linker services
  • Debugging tools
  • Compiler-backend interfaces
  • Cross-target analysis
  • Multi-format object generation
  • Runtime integration
  • Language-development tooling

Expansion must remain modular so that the stability of the x86-64 foundation is not weakened by unfinished targets.

Completion and Release Discipline

ForgeVM will use clear maturity labels for every capability.

Research

Design analysis, technical investigation, and proposed architecture without a complete implementation.

Prototype

A limited implementation used to test an idea, with incomplete features or unstable APIs.

Experimental Release

A usable build with documented limitations and interfaces that may still change.

Stable Release

A tested, versioned, documented capability with reproducible builds and defined compatibility expectations.

The website and documentation must clearly identify each project artifact using these categories.

Definition of Completion

A roadmap stage is considered complete only when it includes:

  • Public source code
  • Versioned releases
  • Automated tests
  • Reproducible build instructions
  • Technical documentation
  • Example outputs
  • Defined supported features
  • Documented limitations

Articles and architectural plans may explain future work, but they do not prove that the work has been completed.

Research defines possibilities.
\nPrototypes test ideas.
\nAutomated tests verify behavior.
\nPublic releases establish actual support.

Final Perspective

The ForgeVM roadmap is deliberately progressive.

Stage 1 establishes a verified x86-64 assembler foundation.

Stage 2 adds optimization, object construction, linking, disassembly, and binary analysis.

Stage 3 introduces WebAssembly as a first-class execution target.

Stage 4 expands into additional language interfaces, processor architectures, and broader compiler infrastructure.

This order protects the project from premature growth and ensures that every new layer is supported by real engineering work.

ForgeVM will expand only when its existing foundation is tested, documented, reproducible, and publicly verifiable.