shiracamus · January 30, 2024 08:10
diff --git a/signed.py b/signed.py
 def signed(value, bits=8):
    return (value & ((sign := (1 << (bits - 1))) - 1)) - (value & sign)

 print(signed(0x7f))         # 127
 print(signed(0x80))         # -128
 print(signed(0x81))         # -127
 print(signed(0x7fff))       # -1
 print(signed(0x7fff, 16))   # 32767
 print(signed(0x8000, 16))   # -32768
 print(signed(0x8001, 16))   # -32767
	def signed(value, bits=8):
	return (value & ((sign := (1 << (bits - 1))) - 1)) - (value & sign)

	print(signed(0x7f)) # 127
	print(signed(0x80)) # -128
	print(signed(0x81)) # -127
	print(signed(0x7fff)) # -1
	print(signed(0x7fff, 16)) # 32767
	print(signed(0x8000, 16)) # -32768
	print(signed(0x8001, 16)) # -32767