Intel released things like MMX, AC'97, Communications and Networking Riser (CNR), and audio/modem riser (AMR) standards, all in an effort to push hardware vendors out of the market by handling those roles in software by the CPU. Whats worse MMX has no dedicated registers, and instead reuses/shares FPU ones, this means you cant use MMX and FPU (all 3D code pre Direct3D 7 Hardware T&L) at the same time.Īll comes down to Microsoft and Intel coming up with a concept of purely software peripherals around 1997. MMX is Integer math only, good for DSP, things like audio filters, or making a softmodem out of your sound card.
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