35 lines
902 B
Python
35 lines
902 B
Python
from os import path
|
|
import sys
|
|
|
|
from parse_bits import parse_file_fields
|
|
from parse_bits import aggregate
|
|
|
|
def mask_from_bits(bits):
|
|
if type(bits) is int:
|
|
return 1
|
|
else:
|
|
high, low = bits
|
|
assert high > low, bits
|
|
length = (high - low) + 1
|
|
return (1 << length) - 1
|
|
|
|
def low_from_bits(bits):
|
|
if type(bits) is int:
|
|
return bits
|
|
else:
|
|
high, low = bits
|
|
return low
|
|
|
|
def render_descriptor(prefix, d):
|
|
mask = mask_from_bits(d.bits)
|
|
low = low_from_bits(d.bits)
|
|
print(f"#define {prefix.upper()}__{d.field_name}(n) (((n) & {hex(mask)}) << {low})")
|
|
|
|
if __name__ == "__main__":
|
|
assert sys.argv[1].endswith('.txt')
|
|
prefix = sys.argv[1].removesuffix('.txt')
|
|
prefix = path.split(prefix)[1]
|
|
l = list(parse_file_fields(sys.argv[1]))
|
|
for descriptor in aggregate(l):
|
|
render_descriptor(prefix, descriptor)
|