TEXT ·getisar0(SB),NOSPLIT,$0
	// get Instruction Set Attributes 0 into R0
	MRS	ID_AA64ISAR0_EL1, R0
	MOVD	R0, ret+0(FP)
	RET

// func getMIDR() uint64
TEXT ·getMIDR(SB), NOSPLIT, $0-8
	MRS	MIDR_EL1, R0
	MOVD	R0, ret+0(FP)

	{"MDCCSR_EL0", REG_MDCCSR_EL0, 0x130100, SR_READ},
	{"MDRAR_EL1", REG_MDRAR_EL1, 0x101000, SR_READ},
	{"MDSCR_EL1", REG_MDSCR_EL1, 0x100240, SR_READ | SR_WRITE},
	{"MIDR_EL1", REG_MIDR_EL1, 0x180000, SR_READ},
	{"MPAM0_EL1", REG_MPAM0_EL1, 0x18a520, SR_READ | SR_WRITE},
	{"MPAM1_EL1", REG_MPAM1_EL1, 0x18a500, SR_READ | SR_WRITE},
	{"MPAMIDR_EL1", REG_MPAMIDR_EL1, 0x18a480, SR_READ},

	MSR	R6, MDCCSR_EL0                                   // ERROR "system register is not writable"
	MSR	R6, MDRAR_EL1                                    // ERROR "system register is not writable"
	MSR	R6, MIDR_EL1                                     // ERROR "system register is not writable"
	MSR	R6, MPAMIDR_EL1                                  // ERROR "system register is not writable"

	MRS	MDCCSR_EL0, R19                    // 130133d5
	MRS	MDRAR_EL1, R12                     // 0c1030d5
	MRS	MDSCR_EL1, R15                     // 4f0230d5
	MSR	R15, MDSCR_EL1                     // 4f0210d5
	MRS	MIDR_EL1, R26                      // 1a0038d5
	MRS	MPIDR_EL1, R25                     // b90038d5
	MRS	MVFR0_EL1, R29                     // 1d0338d5
	MRS	MVFR1_EL1, R7                      // 270338d5