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# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
-- Test `.emb` for the `bits` construct.
[$default byte_order: "LittleEndian"]
[(cpp) namespace: "emboss::test"]
bits OneByte:
7 [+1] Flag high_bit
6 [+1] Flag less_high_bit
2 [+4] UInt mid_nibble
1 [+1] Flag less_low_bit
0 [+1] Flag low_bit
bits FourByte:
bits TwoByteWithGaps:
15 [+1] Flag high_bit
6 [+4] UInt mid_nibble
0 [+1] Flag low_bit
28 [+4] UInt high_nibble
20 [+8] OneByte one_byte
4 [+16] TwoByteWithGaps two_byte
0 [+4] UInt raw_low_nibble
# Check that the [requires] attribute works on bits fields just like it does
# on struct fields.
[requires: 1 <= this <= 15]
let low_nibble = raw_low_nibble + 100
bits ArrayInBits:
15 [+1] Flag lone_flag
0 [+12] Flag[] flags
struct ArrayInBitsInStruct:
0 [+2] ArrayInBits array_in_bits
struct StructOfBits:
0 [+1] OneByte one_byte
1 [+2] FourByte.TwoByteWithGaps two_byte
3 [+4] FourByte four_byte
one_byte.mid_nibble [+1] UInt located_byte
struct BitArray:
0 [+8] OneByte[8] one_byte