The complete cap7 mission -- every command, all 8,562 draws -- executes in
39 seconds at 89.6M steps/s sustained (199,857 Python hook services). The
replayed dict matches the QUEUE ground truth exactly; the old 'baseline'
dict (16793/8397) is exposed as a budget-truncated artifact: the historic
Python regressions hit the 2e9-step budget ~96% through and silently
dropped the last 497 commands. This is the first complete execution of the
whole mission. + M4-LIVE-SEAM.md (the remaining path to live DOSBox) and
emu860c.step1() for hook-driven single-steps.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Full mechanical port of emu860.py's validated semantics: paged memory,
integer ISA, control flow with delayed branches + bc.t/bnc.t annul, DIM
tracking, and the complete FP model (pipes with per-entry result precision,
PFAM/PFMAM dual-op routing, fdest bypass, raw-retire fix/ftrunc, K/T loads).
Python keeps the hooks via a shim; the C loop returns at hook pcs.
Differential result vs the hook-aligned reference trace (ref_trace2):
139.7M steps/s (Python: 398K/s = 351x), 35.8M steps, 2195 hooks,
43/43 checkpoints matched (pc + step count + full reg CRC).
The original i860 ran ~40 MIPS: real-time geometry is cleared 3.5x over --
M4's gate (GPU-RETARGET.md) is open.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
CydandClaude Opus 4.8