Talk:COMEFROM

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I don't see any discussion here of the resemblance between block structured exception handling and COMEFROM. "Catch" clauses are very much like a "structured" cousin of COMEFROM, as the point from which control is transferred doesn't specify where it goes, and instead the point at which it arrives "catches" it.--74.104.131.76 15:48, 31 December 2006 (UTC)

[edit] Breakpoints

The most practical known use of a COMEFROM-like structure is as a breakpoint during debugging. One implementation of FORTRAN included it, under the name "AT", as a debugging aid, with dire warnings against using it in production code. In addition, many modern CPUs have hardware support for breakpoints.

Do these "hardware breakpoints" really act like COMEFROM, or are they some kind of "break" instruction that isn't at all like COMEFROM? The latter sounds much more likely to me... - furrykef (Talk at me) 08:03, 28 March 2007 (UTC)