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EEPROM layout

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Aiden
2026-05-26 11:35:21 +10:00
parent 1ad03d5692
commit edb8ed78f3
19 changed files with 169583 additions and 8 deletions
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28
h8536/emulator/rx_probe.py
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@@ -15,6 +15,7 @@ from .constants import (
SCI_SSR_RDRF,
VECTOR_SCI1_RXI,
)
from .eeprom_image import write_eeprom_snapshot
from .errors import UnsupportedInstruction
from .memory import MemoryAccess
from .runner import H8536Emulator
@@ -216,6 +217,7 @@ def run_rx_probe(
p9_fast_optimistic_wrapper: bool = False,
p7_input: int = 0xFF,
eeprom_seed: str = "blank",
eeprom_image: bytes | None = None,
stop_after_tx_frame: bool = True,
) -> tuple[Path, H8536Emulator, str, list[FrameResult]]:
rom_bytes, discovered_rom_path = load_rom(rom_path)
@@ -231,6 +233,8 @@ def run_rx_probe(
p7_input=p7_input,
eeprom_seed=eeprom_seed,
)
if eeprom_image is not None:
emulator.memory.load_eeprom_image(eeprom_image)
boot_context = RunContext()
boot_steps_used, boot_reason = _run_until(emulator, boot_steps, _rx_ready, boot_context)
@@ -277,6 +281,11 @@ def build_arg_parser() -> argparse.ArgumentParser:
parser.add_argument("--p9-fast-optimistic-wrapper", action="store_true", help="legacy fallback for older wrapper experiments; known BFE0/BFFE wrappers use the X24164 model")
parser.add_argument("--p7-input", type=parse_int, default=0xFF, help="external P7 pin state for input bits; DIP-off board default is 0xFF")
parser.add_argument("--eeprom-seed", choices=("blank", "factory"), default="blank", help="initial X24164/shadow state before reset")
parser.add_argument("--eeprom-load", type=Path, help="load a 0x1000-byte logical EEPROM image before booting the ROM")
parser.add_argument("--eeprom-save", type=Path, help="save the final 0x1000-byte logical EEPROM image after probing")
parser.add_argument("--eeprom-report", type=Path, help="write a readable EEPROM snapshot report after probing")
parser.add_argument("--eeprom-report-json", type=Path, help="write a structured EEPROM snapshot report after probing")
parser.add_argument("--eeprom-report-include-image", action="store_true", help="include the full EEPROM image as hex in JSON reports")
return parser
@@ -305,16 +314,35 @@ def main(argv: list[str] | None = None) -> int:
p9_fast_optimistic_wrapper=args.p9_fast_optimistic_wrapper,
p7_input=args.p7_input,
eeprom_seed=args.eeprom_seed,
eeprom_image=args.eeprom_load.read_bytes() if args.eeprom_load else None,
stop_after_tx_frame=not args.keep_listening,
)
print(f"rom={rom_path}")
if args.eeprom_load:
print(f"eeprom_loaded={args.eeprom_load}")
print(f"reset_vector={h16(emulator.reset_vector())}")
print(boot_summary)
for index, result in enumerate(results):
for line in result.lines(index):
print(line)
print("total_tx_frames=" + " | ".join(format_frame(frame) for frame in emulator.sci1.tx_frames))
if args.eeprom_save:
args.eeprom_save.parent.mkdir(parents=True, exist_ok=True)
args.eeprom_save.write_bytes(emulator.memory.dump_eeprom_image())
print(f"eeprom_saved={args.eeprom_save}")
if args.eeprom_report:
write_eeprom_snapshot(emulator.memory, args.eeprom_report, rom_bytes=emulator.memory.rom.data)
print(f"eeprom_report={args.eeprom_report}")
if args.eeprom_report_json:
write_eeprom_snapshot(
emulator.memory,
args.eeprom_report_json,
rom_bytes=emulator.memory.rom.data,
as_json=True,
include_image_hex=args.eeprom_report_include_image,
)
print(f"eeprom_report_json={args.eeprom_report_json}")
return 0