Re: Lua workshop: call for backup presentations.
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- Subject: Re: Lua workshop: call for backup presentations.
- From: "Martin Schröder" <martin@...>
- Date: 2006年8月24日 23:56:03 +0200
2006年8月24日, Dave Dodge <dododge@dododge.net>:
On Thu, Aug 24, 2006 at 11:29:28AM -0700, Sam Roberts wrote:
> How much slower is it than onboard integral arithmetic? Don't some
> processors support BCD instructions?
Some 1960s IBM mainframes such as the 360 have BCD instructions. I
According to http://en.wikipedia.org/wiki/Binary-coded_decimal, IBM's
BCD is 6-bit, while normal BCD is 4-bit.
Oracle 7 used BCD to store numbers. And of course COBOL does. :-)
Best
Martin