RDFFR (unpredicated)

Read the first-fault register.

Read the first-fault register (FFR) and place in the destination predicate without predication.

313029282726252423222120191817161514131211109876543210
0010010100011001111100000000Pd

SVE

RDFFR <Pd>.B

if !HaveSVE() then UNDEFINED; integer d = UInt(Pd);

Assembler Symbols

<Pd>

Is the name of the destination scalable predicate register, encoded in the "Pd" field.

Operation

CheckSVEEnabled(); bits(PL) ffr = FFR[]; P[d] = ffr;


Release: 00rel5-manual

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