SYS S1_<op1>_<Cn>_<Cm>_<op2>, SYSL S1_<op1>_<Cn>_<Cm>_<op2>, IMPLEMENTATION DEFINED maintenance instructions

The SYS S1_<op1>_<Cn>_<Cm>_<op2>, SYSL S1_<op1>_<Cn>_<Cm>_<op2> characteristics are:

Purpose

This area of the System instruction encoding space is reserved for IMPLEMENTATION DEFINED System instructions.

Configuration

There are no configuration notes.

Attributes

SYS S1_<op1>_<Cn>_<Cm>_<op2>, SYSL S1_<op1>_<Cn>_<Cm>_<op2> is a 64-bit System instruction.

Field descriptions

6362616059585756555453525150494847464544434241403938373635343332
313029282726252423222120191817161514131211109876543210
IMPLEMENTATION DEFINED
IMPLEMENTATION DEFINED

IMPLEMENTATION DEFINED, bits [63:0]

IMPLEMENTATION DEFINED.

Executing the SYS S1_<op1>_<Cn>_<Cm>_<op2>, SYSL S1_<op1>_<Cn>_<Cm>_<op2> instruction

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

SYS #<op1>, <Cn>, <Cm>, #<op2>{, <Xt>}

op0op1CRnCRmop2
0b01op1[2:0]0b1x11Cm[3:0]op2[2:0]

if PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.TIDCP == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else IMPLEMENTATION_DEFINED "SYS"; else IMPLEMENTATION_DEFINED "SYS";

SYSL <Xt>, #<op1>, <Cn>, <Cm>, #<op2>

op0op1CRnCRmop2
0b01op1[2:0]0b1x11Cm[3:0]op2[2:0]

if PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.TIDCP == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else IMPLEMENTATION_DEFINED "SYS"; else IMPLEMENTATION_DEFINED "SYS";


20/09/2021 12:37; d4a233ffbdfb36e47856c443a7ce9a85f5e501ca

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