Sujet : Re: DMA is obsolete
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.archDate : 28. Apr 2025, 02:20:04
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vuml44$21v0f$3@dont-email.me>
References : 1 2 3
User-Agent : Pan/0.162 (Pokrosvk)
On 27 Apr 2025 19:35:08 +0100 (BST), Theo wrote:
Of course you can customise your ISA with extra instructions for doing
the heavy lifting, but then arguably it's not really a CPU any more,
it's a 'programmable DMA engine'. The line between the two becomes very
blurred.
In the old mainframe world, they called that an “I/O channel”. See also
the RP2040 chip from the Raspberry Pi Foundation.