Sujet : Re: Why VAX Was the Ultimate CISC and Not RISC
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.archDate : 09. Mar 2025, 03:55:09
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vqivud$e6u3$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
User-Agent : Pan/0.162 (Pokrosvk)
On Sat, 8 Mar 2025 03:28:49 +0000, MitchAlsup1 wrote:
Mc 68020 had instructions to access bit-fields that cross word
boundaries.
And, with typical big-endian quirkiness†, the numbering was completely the
opposite way round from the single-bit instructions from the earlier
members of the 680x0 family.
†to put it politely