thejayman77
ec82764bef
RTL (GS rasterizer, EE core stub, platform bridge, LPDDR4B path), sim regression (272 TBs), docs, and tooling. Copyrighted PS2 content (BIOS, game code, GS dumps, and all dump-derived textures/traces) is excluded via .gitignore and stays local. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
49 lines
1.3 KiB
Markdown
49 lines
1.3 KiB
Markdown
# Decision 0001: Project Posture
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Status: `Locked`
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## Context
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The project needed to choose between:
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- native full-system on current hardware,
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- staged subset on current hardware,
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- hybrid architecture,
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- future-hardware target.
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This decision sets the planning posture for all early contracts and milestones.
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## Options considered
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1. Native full-system on current hardware.
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2. Staged subset on current hardware.
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3. Hybrid architecture with significant host-side execution.
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4. Future-hardware target.
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## Decision
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Adopt `staged subset on current hardware`.
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This means:
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- the project targets the current retroDE platform,
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- the architectural path remains that of a real PS2 core,
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- coverage will be incomplete for an extended period,
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- early phases prioritize observable bring-up over broad software
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compatibility.
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The intended interpretation is:
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`real PS2 architectural path, incomplete coverage`.
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## Consequences
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- Early milestones may validate only parts of the machine.
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- Some subsystems can remain stubbed or reduced while others become real.
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- The project preserves continuity with the rest of the retroDE family by
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staying on current hardware.
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- The project explicitly does not promise full-title compatibility on the
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current platform.
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- Contracts and milestones should optimize for progressive integration instead
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of "all-or-nothing" completeness.
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