The ID_AA64AFR0_EL1 characteristics are:
Provides information about the IMPLEMENTATION DEFINED features of the PE in AArch64 state.
For general information about the interpretation of the ID registers, see 'Principles of the ID scheme for fields in ID registers'.
There are no configuration notes.
ID_AA64AFR0_EL1 is a 64-bit register.
The ID_AA64AFR0_EL1 bit assignments are:
63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 |
RES0 | |||||||||||||||||||||||||||||||
IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | IMPLEMENTATION DEFINED | ||||||||||||||||||||||||
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 |
Reserved, RES0.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
IMPLEMENTATION DEFINED.
Accesses to this register use the following encodings:
op0 | op1 | CRn | CRm | op2 |
---|---|---|---|---|
0b11 | 0b000 | 0b0000 | 0b0101 | 0b100 |
if PSTATE.EL == EL0 then if IsFeatureImplemented("FEAT_IDST") then if EL2Enabled() && HCR_EL2.TGE == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else AArch64.SystemAccessTrap(EL1, 0x18); else UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.TID3 == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else return ID_AA64AFR0_EL1; elsif PSTATE.EL == EL2 then return ID_AA64AFR0_EL1; elsif PSTATE.EL == EL3 then return ID_AA64AFR0_EL1;
01/07/2020 15:57; 80324f0b9997bede489cc15ad1565345720bcd2a
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