1. Re: Math Shortcuts
On Sat, 4 Jul 1998, Rob Craig wrote:
> Intel also has a machine instruction for *rounding* a f.p.
> number to the nearest integer. Unfortunately it can't be used
> directly for floor(), which always rounds *down*.
I discovered the following while trying to code a ceiling routine:
function ceiling(object x)
return -floor(-x)
end function
This suggests that the floor function could be defined the same way:
-- I'd do this in machine code, but I'm not into Intel op-codes.
function floor(object x)
return -ceiling(-x)
end function
Although, I guess this is how you've already done it in the interpreter...
:)
--
Carl R White
E-mail...: cyrek- at -bigfoot.com / Remove the hyphens before
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