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-WIP-electrum-btcp
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fixed target calculation

This commit is contained in:
nxsofsys 2018-01-17 05:30:27 +03:00
parent 6c1f72564b
commit 0c1865f8b5
1 changed files with 9 additions and 5 deletions
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14
lib/blockchain.py
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@ -328,12 +328,15 @@ class Blockchain(util.PrintError):
def bits_to_target(self, bits):
bitsN = (bits >> 24) & 0xff
if not (bitsN >= 0x03 and bitsN <= 0x1d):
raise BaseException("First part of bits should be in [0x03, 0x1d]")
# if not (bitsN >= 0x03 and bitsN <= 0x1d):
# raise BaseException("First part of bits should be in [0x03, 0x1d]")
bitsBase = bits & 0xffffff
if not (bitsBase >= 0x8000 and bitsBase <= 0x7fffff):
raise BaseException("Second part of bits should be in [0x8000, 0x7fffff]")
return bitsBase << (8 * (bitsN-3))
# if not (bitsBase >= 0x8000 and bitsBase <= 0x7fffff):
# raise BaseException("Second part of bits should be in [0x8000, 0x7fffff]")
if bitsN <= 3:
return bitsBase >> (8 * (3 - bitsN))
else:
return bitsBase << (8 * (bitsN - 3))
def target_to_bits(self, target):
c = ("%064x" % target)[2:]
@ -346,6 +349,7 @@ class Blockchain(util.PrintError):
return bitsN << 24 | bitsBase
def can_connect(self, header, check_height=True):
# import pdb; pdb.set_trace()
height = header['block_height']
if check_height and self.height() != height - 1:
self.print_error("cannot connect at height", height)