Nem DSP-bb mint az ARM "-E".
Wiki az OpenRisc-rol:"The CPU also contains a MAC unit in order to better support digital signal processing (DSP) applications."
Wiki ezt mondja az ARM-rol:
"DSP enhancement instructions
To improve the ARM architecture for digital signal processing and multimedia applications, a few new instructions were added to the set.[15] These are signified by an "E" in the name of the ARMv5TE and ARMv5TEJ architectures. E-variants also imply T,D,M and I.
The new instructions are common in digital signal processor architectures. They are variations on signed multiply-accumulate, saturated add and subtract, and count leading zeros."
FYI: Openrisc-1200 eseten letilthato a szorzas ill. MAC megvalositasa, tehet meg nem is kotelezo resz.
`define OR1200_MULT_IMPLEMENTED
`define OR1200_MAC_IMPLEMENTED
Ps.:
PPC is elegge DSP -nek nez ki. Most, hogy bele kellett neznem az ISA -jaba, hasonlobbnak hatott az altalam ismert DSP-khez.:
wiki: "Design features:" "A fused multiply-add"