Matthew Stanley 4d594da0b9 RSPRecomp: pre-task hook + richer watchdog state dump ... Two related changes for diagnosing hung RSP ucodes: 1. Per-ucode pre-task hook. The legacy wrapper now calls recomp::rsp::run_pre_task_hook(rdram, &persistent_ctx, ucode_name, ucode_addr) before invoking impl. Lets games register hook callbacks keyed by ucode name to replicate parts of rspboot's setup that the static recompilation can't infer (initial GPRs, DMA-engine residue, pre-loaded command data in DMEM). No-op when no hook is registered (one branch). Used this session to unstick Stadium's aspMain dispatch by pre-loading audio commands at DMEM[0x2B0] and seeding $29 = 0x2B0, $30 = chunk_size. Confirmed via watchdog trail: the dispatch now lands on real handlers (r26 = first audio cmd word 0x020004E0, r28/r27/r30 advance through one command) instead of looping on dispatch-table residue. 2. Watchdog trip dump now includes r1, r2, r3, r25, r26, r27, r28, r29, r30, r31, jump_target, dma_mem_address, dma_dram_address. Earlier dump (r1/r28/r29/r31 only) was too sparse to localize the next blocker — Stadium's hang now occurs at L_11B4 ↔ L_10EC because r3 is uninit going into the dispatched handler (handler does `r3 -= 1` then DMAs, but no upstream path set r3 for the first command). Richer state lets future hangs in any consumer game be diagnosed without recompiling the recompiler each time. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-05-05 21:21:19 -07:00
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src	RSPRecomp: pre-task hook + richer watchdog state dump	2026-05-05 21:21:19 -07:00