1. General purpose language syntactically like RATFOR, semantically like C. Lacks structures and pointers. Used as a source language for Jack W. Davidson and Christopher W. Fraser's peephole optimiser which inspired GCC RTL and other optimisation ideas.

FTP. It is a copy of the original distribution from the University of Arizona during the early 80's, totally unsupported.

["The Y Programming Language", D.R. Hanson, SIGPLAN Notices 16(2):59-68 (Feb 1981)].

[Jack W. Davidson and Christopher W. Fraser, "The Design and Application of a Retargetable Peephole Optimiser", TOPLAS, Apr. 1980].

[Jack W. Davidson, "Simplifying Code Through Peephole Optimisation" Technical Report TR81-19, The University of Arizona, Tucson, AZ, 1981].

[Jack W. Davidson and Christopher W. Fraser, "Register Allocation and Exhaustive Peephole Optimisation" Software-Practice and Experience, Sep. 1984].

2. See fixed-point combinator.

(01 May 2000)

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<letter>

Y, the twenty-fifth letter of the English alphabet, at the beginning of a word or syllable, except when a prefix (see y-), is usually a fricative vocal consonant; as a prefix, and usually in the middle or at the end of a syllable, it is a vowel.

It derives its form from the Latin Y, originally the same letter as V. Etymologically, it is most nearly related to u, i, o, and j. g; as in full, fill, AS. fyllan; E. crypt, grotto; young, juvenile; day, AS. daeg. See U, I, and J, G.

Y has been called the Pythagorean letter, because the Greek letter &Upsilon; was taken represent the sacred triad, formed by the duad proceeding from the monad; and also because it represents the dividing of the paths of vice and virtue in the development of human life.

(05 Feb 2009)

XYY male, XYY syndrome, xyzzy, X zone, Y < Prev | Next > -y, y-, Y2K, YA, YAA

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