EMualtor im

h8536/emulator/cli.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import argparse
 from pathlib import Path
 
-from ..formatting import h16
+from ..formatting import h16, parse_int
 from .memory import describe_regions
 from .runner import H8536Emulator
 
@@ -39,6 +39,9 @@ def build_arg_parser() -> argparse.ArgumentParser:
     parser.add_argument("--stop-on-heartbeat", action="store_true", help="stop only when 00 00 00 00 80 DA is emitted through SCI1 TDR")
     parser.add_argument("--memory-map", action="store_true", help="print the scaffolded memory map before running")
     parser.add_argument("--interval-steps", type=int, default=2048, help="rough step period for the scaffolded timer interrupt")
+    parser.add_argument("--frt2-ocia-steps", type=int, default=1024, help="rough step period for the scaffolded FRT2 OCIA interrupt")
+    parser.add_argument("--p9-fast-path", action="store_true", help="shortcut known P9 bit-banged transfer routines for exploration")
+    parser.add_argument("--p9-fast-input", type=parse_int, default=0xFF, help="default byte returned by the P9 fast-path read routine")
     return parser
 
 
@@ -50,7 +53,13 @@ def main(argv: list[str] | None = None) -> int:
         print(str(exc))
         return 2
 
-    emulator = H8536Emulator(rom_bytes, interval_steps=args.interval_steps)
+    emulator = H8536Emulator(
+        rom_bytes,
+        interval_steps=args.interval_steps,
+        frt2_ocia_steps=args.frt2_ocia_steps,
+        p9_fast_path_enabled=args.p9_fast_path,
+        p9_fast_default_input_byte=args.p9_fast_input,
+    )
     print(f"rom={rom_path}")
     print(f"reset_vector={h16(emulator.reset_vector())}")
     if args.memory_map: