Sign magnitude, one's complement, two's complement
Paul Koning
paulkoning at comcast.net
Sat Aug 22 18:40:37 CDT 2015
> On Aug 22, 2015, at 6:27 PM, Chuck Guzis <cclist at sydex.com> wrote:
>
> ...FLoating point can engender some interesting representations. Consider the exponent field on the aforementioned CDC 6000 series. It's a "biased by 2000 octal) system--and the assumed binary point of the mantissa is to the right of the LSB. So, 2000 0000 0000 0000 0001 octal = 1 exactly.
EL-X8 doesn't use the bias, so the floating point representation of an integer under 2^39 is the same as the integer representation. And the rule for normalizing float values preserves that (normalization makes the exponent as close to zero as possible -- rather different than the usual rule).
paul
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