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Add option to not fill binary up to max address #52

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Add option to not fill binary up to max address #52

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9 changes: 7 additions & 2 deletions bincopy.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1517,7 +1517,8 @@ def as_verilog_vmem(self):
def as_binary(self,
minimum_address=None,
maximum_address=None,
padding=None):
padding=None,
fill=True):
"""Return a byte string of all data within given address range.

`minimum_address` is the absolute minimum address of the
Expand All @@ -1534,6 +1535,9 @@ def as_binary(self,
bits, and so on. By default the padding is ``b'\\xff' *
word_size_bytes``.

`fill` fill the binary up to `maximum_address`. By default
this is True.

>>> binfile.as_binary()
bytearray(b'!F\\x016\\x01!G\\x016\\x00~\\xfe\\t\\xd2\\x19\\x01!F\\x01~\\x17\\xc2\\x00\\x01
\\xff_\\x16\\x00!H\\x01\\x19\\x19Ny#F#\\x96Wx#\\x9e\\xda?\\x01\\xb2\\xca?\\x01Vp+^q+r+s!
Expand Down Expand Up @@ -1580,7 +1584,8 @@ def as_binary(self,
data = data[:size]
length = len(data) // self.word_size_bytes
elif maximum_address >= current_maximum_address:
binary += padding * (maximum_address - current_maximum_address)
if fill:
binary += padding * (maximum_address - current_maximum_address)
break

binary += padding * (address - current_maximum_address)
Expand Down