Article · Wikipedia archive · Last revised Jun 23, 2026

Field specification

A field specification or fspec defines a portion of a word in some programming language. It has the form "(L:R)" where "L" is the leftmost byte and "R" is the rightmost byte, and counting begins at zero. For example, the first three bytes of a word would have the fspec (0:2) for bytes numbered 0, 1, and 2.

Last revised
Jun 23, 2026
Read time
≈ 1 min
Length
84 w
Citations
1
Source
Wikipedia ↗

A field specification1 or fspec defines a portion of a word in some programming language. It has the form "(L:R)" where "L" is the leftmost byte and "R" is the rightmost byte, and counting begins at zero. For example, the first three bytes of a word would have the fspec (0:2) for bytes numbered 0, 1, and 2.

References

References