Am 19.04.2017 11:26 schrieb "Ryan Joseph" <r...@thealchemistguild.com>: > > > > On Apr 19, 2017, at 4:14 PM, Sven Barth via fpc-pascal < fpc-pascal@lists.freepascal.org> wrote: > > > > Those functions simply store (setjmp) and restore (longjmp) register values (and setjmp also returns the value passed to longjmp if it had been reached by a longjmp). Nothing more, nothing less. So while the stack register while be changed, the contents on the stack will not. > > Why doesn’t “i” in my example increment? The value keeps going back to 1 even after I used += 1 so its like the old copy of the stack before the jump got pushed back on top and it started over. I don’t understand how assembly works but I thought it would just start over and the state of the stack in that function would still be the same as before so I could keep adding 1 every pass.
Ah, I didn't catch that earlier. Probably "i" is kept in a register due to optimization. You should check the generated assembler code to be sure. Regards, Sven
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