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Use unpack_from and pack_into for speedup

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This commit is contained in:
Koichi Nakamura 2021-12-29 21:34:25 +09:00
parent 4c91bcb9a8
commit 5005ff0e8e
1 changed files with 9 additions and 9 deletions
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18
others/planck.py
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@ -6,9 +6,9 @@
import os
import sys
import operator
import ctypes
from ctypes import c_uint32
import platform
from struct import pack, unpack
from struct import pack_into, unpack_from
RUNTIME_NAME = "Python {}".format(platform.python_version())
COPYRIGHT = "Copyright (c) 2021 Koichi Nakamura <koichi@idein.jp>"
@ -39,13 +39,13 @@ def align():
write(HERE_CELL, aligned(read(HERE_CELL)))
def readi(addr):
return unpack('<i', memory[addr:addr+CELL])[0]
return unpack_from('<i', memory, addr)[0]
def read(addr):
return unpack('<I', memory[addr:addr+CELL])[0]
return unpack_from('<I', memory, addr)[0]
def write(addr, v):
memory[addr:addr+CELL] = pack('<I', ctypes.c_uint32(v).value)
pack_into('<I', memory, addr, c_uint32(v).value)
def comma(v, signed=False):
here = read(HERE_CELL)
@ -148,8 +148,8 @@ def add_simple_operator(name, func):
def add_uint_operator(name, op):
def func():
b = ctypes.c_uint(pop()).value
a = ctypes.c_uint(pop()).value
b = c_uint32(pop()).value
a = c_uint32(pop()).value
push(op(a, b))
return add_simple_operator(name, func)
def add_int_operator(name, op):
@ -225,8 +225,8 @@ def litstring(ip, np):
return next(np + CELL + read(np))
add_operator('S', litstring)
def divmod():
b = ctypes.c_uint(pop()).value
a = ctypes.c_uint(pop()).value
b = c_uint32(pop()).value
a = c_uint32(pop()).value
push(a%b)
push(a//b)
add_simple_operator('/', divmod)