xenia-rs

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MechaCat02 701e4c399a [iterate-4C] JIT Phase 2b-ii: native branches (bx/bcx/bclrx)

try_emit_native now returns a 3-state Emit enum (Fallback/Native/Branch);
compile_block appends the pc==expected_next discontinuity check after a
native branch, mirroring step_block. bx (aa/rel, lk), bcx (CTR
decrement + CTR/CR condition, cmov-selected target), bclrx (return via
lr & !3) emitted natively; bcctrx stays on fallback (dispatch_rec side
effect). count_only postlude (counters, no pc+=4) for branches.
Differential tests: unconditional/conditional/return branches over
exhaustive BO bits, CTR==1->0 boundary, lr alignment mask, both lk
states, asserting pc/lr/ctr/cr/counters. Golden n200m BYTE-IDENTICAL
with and without XENIA_JIT (11 tests green). Throughput 4.85->4.7s
(interp ~3.9s); crossover still pending rotate/shift (Phase 3).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-04 19:48:47 +02:00

xenia-analysis

[iterate-4A] Milestone-2: XMA audio decoder + RE tooling (dispatch recorder, analyzer vtable-fix, non-perturbing probes)

2026-06-21 21:38:19 +02:00

xenia-app

[iterate-4C] JIT Phase 0: dynasm skeleton (all-fallback, golden byte-identical)

2026-07-03 23:38:28 +02:00

xenia-apu

[iterate-4A] Milestone-2: XMA audio decoder + RE tooling (dispatch recorder, analyzer vtable-fix, non-perturbing probes)

2026-06-21 21:38:19 +02:00

xenia-cpu

[iterate-4C] JIT Phase 0: dynasm skeleton (all-fallback, golden byte-identical)