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 byte-swapping. Or how about architectures not using a word length that's an integral number of bytes? --Chuck
