High−level Instructions
3 − 204
Relationship between number of bits and occupied data area for decoded result
Number of bits to be
decoded
Data area required for the
result
Valid bits in the area for the
result
1 1-word 2-bit*
2 1-word 4-bit*
3 1-word 8-bit*
4 1-word 16-bit
5 2-word 32-bit
6 4-word 64-bit
7 8-word 128-bit
8 16-word 256-bit
* Invalid bits in the data area required for the result are set to “0”.
Decoded example
When decoding 4-bit data, 16-bit data for the decoded result is shown below.
Decoding conditions (n)
Starting bit position: H0 (bit position 0)
Number of bits to be decoded: H4 (4 bits)
Data to be decoded
Decoded result
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