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Pettenò: Debunking x32 mythsPettenò: Debunking x32 mythsPosted Jun 27, 2012 14:22 UTC (Wed) by mansr (guest, #85328)In reply to: Pettenò: Debunking x32 myths by nix Parent article: Pettenò: Debunking x32 myths
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Pettenò: Debunking x32 myths Posted Jun 27, 2012 21:27 UTC (Wed) by nix (subscriber, #2304) [Link]
Exactly. Of course, on any reasonable platform these days (other than tiny DSPs normally not programmed in C at all), a byte is one octet, but in olden days this was not true. Of course by the time C was standardized at all it was pretty widely true, and by the time of C99 it was universal. But it wasn't always so.
Pettenò: Debunking x32 myths Posted Jun 27, 2012 21:45 UTC (Wed) by mansr (guest, #85328) [Link]
POSIX does mandate 8-bit bytes. As for those DSPs, a lot of code running on them is actually written in C. Only the critical parts are typically done in assembly.
Pettenò: Debunking x32 myths Posted Jun 29, 2012 4:57 UTC (Fri) by sethml (subscriber, #8471) [Link]
Check out the TI C2000 / TMS320 architecture. I've written a lot of C++ with 16-bit chars on that architecture over the past few years. Yes, it's a bit of a brain-dead architecture, but there are definitely archs with non 8 bit chars around still.
Pettenò: Debunking x32 myths Posted Jun 29, 2012 12:11 UTC (Fri) by nix (subscriber, #2304) [Link]
At least that's a multiple of 8. Are there any 9/18/36-bit bytes around these days? I hope not :}
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