RET

// func getCntxct(physical bool) uint32
TEXT runtime·getCntxct(SB),NOSPLIT,$0
	MOVB	physical+0(FP), R0
	CMP	$0, R0
	BEQ	3(PC)

	// get CNTPCT (Physical Count Register) into R0
	MRS	CNTPCT_EL0, R0
	B	2(PC)

	// get CNTVCT (Virtual Count Register) into R0
	MRS	CNTVCT_EL0, R0

	MOVW	R0, ret+8(FP)
	RET

// func issetugid() int32
TEXT runtime·issetugid(SB),NOSPLIT|NOFRAME,$0

	{"CNTP_CTL_EL0", REG_CNTP_CTL_EL0, 0x1be220, SR_READ | SR_WRITE},
	{"CNTP_CVAL_EL0", REG_CNTP_CVAL_EL0, 0x1be240, SR_READ | SR_WRITE},
	{"CNTP_TVAL_EL0", REG_CNTP_TVAL_EL0, 0x1be200, SR_READ | SR_WRITE},
	{"CNTPCT_EL0", REG_CNTPCT_EL0, 0x1be020, SR_READ},
	{"CNTPS_CTL_EL1", REG_CNTPS_CTL_EL1, 0x1fe220, SR_READ | SR_WRITE},
	{"CNTPS_CVAL_EL1", REG_CNTPS_CVAL_EL1, 0x1fe240, SR_READ | SR_WRITE},

	MSR	R6, CCSIDR_EL1                                   // ERROR "system register is not writable"
	MSR	R6, CLIDR_EL1                                    // ERROR "system register is not writable"
	MSR	R6, CNTPCT_EL0                                   // ERROR "system register is not writable"
	MSR	R6, CNTVCT_EL0                                   // ERROR "system register is not writable"

	MRS	CNTV_TVAL_EL0, R6                  // 06e33bd5
	MSR	R19, CNTV_TVAL_EL0                 // 13e31bd5
	MRS	CNTKCTL_EL1, R16                   // 10e138d5
	MSR	R26, CNTKCTL_EL1                   // 1ae118d5
	MRS	CNTPCT_EL0, R9                     // 29e03bd5
	MRS	CNTPS_CTL_EL1, R30                 // 3ee23fd5
	MSR	R26, CNTPS_CTL_EL1                 // 3ae21fd5
	MRS	CNTPS_CVAL_EL1, R8                 // 48e23fd5