Description
Interleave two nibbles into one byte.
Bit positions are usually counted from the least-significant bit, while a displayed binary string has its own left-to-right indexing convention. Masks, fields and parity predicates describe a selected region or pattern; local agreement does not validate a complete encoded record.
Interleave two nibbles into one byte.
When to use this tool
Use Bitplane Interleave Two Nibbles when checking the stated mask, field, parity or bit-index convention.
How to use the tool and how it works
- Enter first, second. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read value. Use the output convention below.
Interleave two nibbles into one byte. Require each 0..15; first bit i goes to output 2*i, second bit i to 2*i+1.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| first | First | Required. Safe integer; minimum 0; maximum 15. |
| second | Second | Required. Safe integer; minimum 0; maximum 15. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| value | Value | Required. Safe integer. |
{
"input": {
"first": 15,
"second": 0
},
"output": {
"value": 85
}
}Limitations and assumptions
- This is a fixed least-significant-first bit permutation, not arbitrary Morton encoding or multi-byte serialization.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Choose an explicit bit order, word width and missing-position policy; use the complete record format and appropriate parsing or checksum methods for full validation.
References
Similar or alternative tools
- Byte Unaligned Load Two Fragments
Load a byte-sized slice from two numeric byte fragments.
- Two Lane Shuffle Immediate Fields
Split an immediate into two low/high selector fields.