thejayman77
ec82764bef
RTL (GS rasterizer, EE core stub, platform bridge, LPDDR4B path), sim regression (272 TBs), docs, and tooling. Copyrighted PS2 content (BIOS, game code, GS dumps, and all dump-derived textures/traces) is excluded via .gitignore and stays local. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
60 lines
1.9 KiB
Python
Executable File
60 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Generate a NOP-sled golden trace in the retroDE_ps2 common envelope.
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Produces one EE IFETCH record per fetch, starting at --reset-vector (default
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0xBFC00000), advancing PC += 4 each step. Each instruction word is 0x00000000
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(MIPS NOP: sll $0, $0, 0).
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Format: see docs/decisions/0000-trace-format.md.
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Spec: see sim/golden/trace_compare_spec.md.
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"""
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import argparse
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import sys
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def main() -> int:
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ap = argparse.ArgumentParser(description="NOP-sled golden trace generator")
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ap.add_argument("--count", type=int, default=32,
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help="number of IFETCH records to emit (default: 32)")
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ap.add_argument("--reset-vector", type=lambda s: int(s, 0),
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default=0xBFC00000,
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help="starting PC (default: 0xBFC00000)")
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ap.add_argument("-o", "--output", default="-",
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help="output file, '-' for stdout (default: -)")
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args = ap.parse_args()
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if args.count <= 0:
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print("error: --count must be positive", file=sys.stderr)
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return 2
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if args.output == "-":
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out = sys.stdout
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close = False
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else:
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try:
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out = open(args.output, "w")
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except OSError as e:
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print(f"error: cannot open {args.output}: {e}", file=sys.stderr)
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return 2
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close = True
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try:
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out.write("# retroDE_ps2 golden trace, schema v1, "
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"source=generated, scenario=nop_sled\n")
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out.write("# columns: cycle subsystem event arg0 arg1 arg2 arg3 flags\n")
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for i in range(args.count):
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pc = (args.reset_vector + i * 4) & 0xFFFFFFFFFFFFFFFF
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out.write(
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f"{i} EE IFETCH "
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f"0x{pc:016x} 0x{0:016x} 0x{0:016x} 0x{0:016x} -\n"
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)
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finally:
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if close:
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out.close()
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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