Megadev compression

Choose compression per asset and loading path. A smaller file can still cost more sectors, more working RAM or more time before an asset is usable. Preserve the game's asset formats, visual design and loading behavior.

• Read Formats and authoring for audited Megadev/BIOS support, a deterministic Kosinski encoder and input/output validation.
• Read Loading and budgets for ownership, sector-sized staging, peak RAM, Sub decoding and preloading trade-offs.
• Read Measurement and validation for real decoder execution, timing limits, ARM64/AMD64 comparison and PAL/NTSC auditions.

Use ewrogers/megadev:latest; inspect its actual decoder and ABI before teaching calls. The audited SDK revision and primary links are in the references. Do not port SGDK's resource compiler, unpack calls or codec names as Megadev APIs.

Essential contracts: