Claude 359241d906 Codegen: MMC3 on_scanline IRQ dispatch (minimal) ... Wires \`on scanline(N)\` handlers through IR lowering and codegen: - IR lowering: each scanline handler becomes a regular IR function named \`{state}_scanline_{N}\` - IR codegen: when any scanline handler exists, emits MMC3 IRQ setup at program start (\$C000 latch, \$C001 reload, \$E001 enable, CLI) and a \`__irq_user\` handler that saves registers, acknowledges via \$E000, JSRs the scanline handler, restores registers, and RTIs - Linker: vector table prefers \`__irq_user\` over the default \`__irq\` stub when both exist Scope of this first pass is intentionally minimal: supports ONE scanline handler per program (the first one found in IR function order). Per-state dispatch and multi-scanline reload will come later. https://claude.ai/code/session_01W6eQFStA66EuMKHUFo2rx3		2026-04-12 16:22:54 +00:00
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integration	Implement NEScript compiler Milestone 1 ("Hello Sprite")	2026-04-11 22:07:56 +00:00
integration_test.rs	Codegen: MMC3 on_scanline IRQ dispatch (minimal)	2026-04-12 16:22:54 +00:00