Re^2: Sheer idle curiousity . . .

Besides what David just said, it seems to me that the operation of simply setting a sign bit and then testing for 0 would inherently faster than any of the other comparisons if the resulting code is optimized. I know that would be the case if I were coding that in assembly.

The answer to the question "Can we do this?" is always an emphatic "Yes!" Just give me enough time and money.

Comment on Re^2: Sheer idle curiousity . . .

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Re^3: Sheer idle curiousity . . . by BrowserUk (Patriarch) on Oct 23, 2013 at 22:16 UTC
if the resulting code is optimized. Its not. It just results in less opcodes. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]
Re^4: Sheer idle curiousity . . . by boftx (Deacon) on Oct 23, 2013 at 22:26 UTC
That was what I was driving at. I know that I could code that in 2 or 3 opcodes using nothing but bitwise operations if hand-coding. If the zero flag were set with a simple load then I could code it in a single opcode (excluding the jump codes.) The answer to the question "Can we do this?" is always an emphatic "Yes!" Just give me enough time and money.	[reply]
Re^5: Sheer idle curiousity . . . by BrowserUk (Patriarch) on Oct 24, 2013 at 00:51 UTC
I know that I could code that in 2 or 3 opcodes using nothing but bitwise operations if hand-coding. I think we may be at cross purposes here. I'm talking about perl VM high-level opcodes, not assembler level machine instructions. See Re: Sheer idle curiousity . . .. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]