Round Representable Mask generates a mask, writing it to the destination register. Together with a length obtained from RRLEN, the mask can be used on a Capablity Value to set representable bounds with SCBNDSE.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | Rn | Rd | ||||||||
| opc<1> | opc<0> | ||||||||||||||||||||||||||||||
integer d = UInt(Rd); integer n = UInt(Rn);
| <Xd> |
Is the 64-bit name of the destination general-purpose register, encoded in the "Rd" field. |
| <Xn> |
Is the 64-bit name of the source general-purpose register, encoded in the "Rn" field. |
CheckCapabilitiesEnabled(); bits(64) request = X[n]; bits(64) mask = CapGetRepresentableMask(request); X[d] = mask;
Internal version only: isa v32.13, AdvSIMD v29.04, pseudocode morello-2022-01_rc2, capabilities morello-2022-01_rc2 ; Build timestamp: 2022-01-11T11:23
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