JIDR, Jazelle ID Register

The JIDR characteristics are:

Purpose

A Jazelle register, which identified the Jazelle architecture version.

Configuration

This register is present only when AArch32 is supported. Otherwise, direct accesses to JIDR are UNDEFINED.

Attributes

JIDR is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
RAZ

Bits [31:0]

Reserved, RAZ.

Accessing JIDR

Accesses to this register use the following encodings in the System register encoding space:

MRC{<c>}{<q>} <coproc>, {#}<opc1>, <Rt>, <CRn>, <CRm>{, {#}<opc2>}

coprocopc1CRnCRmopc2
0b11100b1110b00000b00000b000

if PSTATE.EL == EL0 then if boolean IMPLEMENTATION_DEFINED "JIDR UNDEFINED at EL0" then UNDEFINED; elsif EL2Enabled() && !ELUsingAArch32(EL2) && !ELIsInHost(EL0) && HCR_EL2.TID0 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x05); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.TID0 == '1' then AArch32.TakeHypTrapException(0x05); else R[t] = JIDR; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TID0 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x05); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.TID0 == '1' then AArch32.TakeHypTrapException(0x05); else R[t] = JIDR; elsif PSTATE.EL == EL2 then R[t] = JIDR; elsif PSTATE.EL == EL3 then R[t] = JIDR;


26/03/2024 09:49; 67c0ae5282a7629ba0ea0ba7267b43cd4f7939f6

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