Odd "endianness" [was Re: RE: Base 64 posts to the list]

Chuck Guzis cclist at sydex.com
Mon Dec 5 11:17:43 CST 2016

On 12/05/2016 08:51 AM, Mouse wrote:

> Little- and big-endian do this; conversion between them is 
> byteswapping, which is self-inverse.  Conversion between
> PDP11-endian (0x87654321 stored as 0x65 0x87 0x21 0x43) and either
> big- or little-endian is also self-inverse.  Is there any hardware
> for which conversion between its native storage format and any of
> these three is not self-inverse?  To put it another way, and rather
> more loosely, is there one for which htonl and ntohl are actually
> different operations?

Decimal machines, such as the 1620 and 1401?  Of course, these aren't
word-oriented machines either, but variable-length systems.   Conversion
between either of those and your VAX is not simply a matter of

Or how about architectures not using a word length that's an integral
number of bytes?


More information about the cctalk mailing list