hankd@pur-ee.UUCP (Hank Dietz) (10/08/88)
In article <512@quintus.UUCP>, ok@quintus.uucp (Richard A. O'Keefe) writes: > In article <9410@pur-ee.UUCP> hankd@pur-ee.UUCP (Hank Dietz) writes: > >Pertaining to my posting about lazy store/reload of register frames: > > > Wasn't there an MIT paper with a title something like > "Lazy Scoping -- the Dream of a Lifetime" > which had to do with lazy register saves and restores? The paper you refer to is: G. L. Steele Jr. and G. J. Sussman, "The Dream of a Lifetime: A Lazy Variable Extent Mechanism," from SIGPLAN (1985). It does indeed discuss lazy register store/reload, but it does so in the context of a Lisp environment, rather than in terms of a general register set array. Although it is heavily biased toward Lisp structures, the concepts are pretty-much the same, and it's quite an interesting paper. I would also go so far as to say that if you liked that, you'll love the paper that Chi and I have at Supercomputing '88: Henry Dietz and Chi-Hung Chi, "CRegs: A New Kind of Memory for Referencing Arrays and Pointers," which not only supports lazy operations, but significantly extends the benefits normally associated with registers and cache. -hankd PS: Note that I never claimed to have invented lazy store/reload... I simply said that I led a panel discussion at HICSS where the application to register windowing came up. Fundamentally, lazy ops are a very old idea.