These functions appear to be holdovers from the 2.x code, intended to handle
problems with CRC signedness.
READ, WRITE = 1, 2
-def U32(i):
- """Return i as an unsigned integer, assuming it fits in 32 bits.
- If it's >= 2GB when viewed as a 32-bit unsigned int, return a long.
- """
- if i < 0:
- i += 1 << 32
- return i
-
-def LOWU32(i):
- """Return the low-order 32 bits, as a non-negative int"""
- return i & 0xFFFFFFFF
-
def write32u(output, value):
# The L format writes the bit pattern correctly whether signed
# or unsigned.