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No need to store opcode _END any more

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This commit is contained in:
kris 2019-03-21 16:35:42 +00:00
parent 7164f20eab
commit 5d4148daaf
1 changed files with 7 additions and 17 deletions
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24
transcoder/opcodes.py
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@ -156,7 +156,7 @@ for _tick in range(4, 68, 2):
TICK_OPCODES[(_tick, _page)] = cls
def _ParseSymbolTable():
def _parse_symbol_table():
"""Read symbol table from video player debug file."""
opcode_data = {}
@ -168,34 +168,24 @@ def _ParseSymbolTable():
opcode_data.setdefault(op_name, {})["start"] = start_addr
if name.startswith("\"end_"):
op_name = name[5:-1]
end_addr = int(data["val"], 16) - 1
opcode_data.setdefault(op_name, {})["end"] = end_addr
opcode_addrs = []
for op_name, addrs in opcode_data.items():
for op in OpcodeCommand:
if op.name.lower() != op_name:
continue
opcode_addrs.append(
(op, addrs["start"], addrs.get("end")))
opcode_addrs.append((op, addrs["start"]))
return sorted(opcode_addrs, key=lambda x: (x[1], x[2]))
def _FillOpcodeAddresses():
"""Populate _START and _END on opcodes from symbol table."""
idx = 0
for op, start, end in _OPCODE_ADDRS:
def _fill_opcode_addresses():
"""Populate _START on opcodes from symbol table."""
for op, start in _OPCODE_ADDRS:
cls = _OPCODE_CLASSES[op]
cls._START = start
cls._END = end
idx += 1
_OPCODE_ADDRS = _ParseSymbolTable()
_OPCODE_ADDRS = _parse_symbol_table()
_OPCODE_CLASSES = {
OpcodeCommand.TERMINATE: Terminate,
OpcodeCommand.NOP: Nop,
@ -206,4 +196,4 @@ for _tick in range(4, 68, 2):
for _page in range(32, 64):
_tickop = OpcodeCommand["TICK_%d_PAGE_%d" % (_tick, _page)]
_OPCODE_CLASSES[_tickop] = TICK_OPCODES[(_tick, _page)]
_FillOpcodeAddresses()
_fill_opcode_addresses()