MOVW	(R6), R6
	CMP	$0, R6
	B.NE	done

dropm:
	MOVW	$runtime·dropm(SB), R0
	BL	(R0)

done:
	// Done!
	RET

// void setg(G*); set g. for use by needm.
TEXT runtime·setg(SB),NOSPLIT|NOFRAME,$0-4
	MOVW	gg+0(FP), R0
	B	setg<>(SB)

TEXT setg<>(SB),NOSPLIT|NOFRAME,$0-0
	MOVW	R0, g

	// Save g to thread-local storage.
#ifdef GOOS_windows
	B	runtime·save_g(SB)
#else

		// it may hit stack split that is not expected here.
		if gp != nil {
			setg(nil)
		}
		badsignal(uintptr(sig), c)
		// Restore g
		if gp != nil {
			setg(gp)
		}
		return
	}

	setg(gp.m.gsignal)

	// If some non-Go code called sigaltstack, adjust.
	var gsignalStack gsignalStack

	// if there is a _cgo_init, call it using the gcc ABI.
	MOVV	_cgo_init(SB), R25
	BEQ	R25, nocgo

	MOVV	R0, R7	// arg 3: not used
	MOVV	R0, R6	// arg 2: not used
	MOVV	$setg_gcc<>(SB), R5	// arg 1: setg
	MOVV	g, R4	// arg 0: G
	JAL	(R25)

nocgo:
	// update stackguard after _cgo_init
	MOVV	(g_stack+stack_lo)(g), R1
	ADDV	$const_stackGuard, R1
	MOVV	R1, g_stackguard0(g)
	MOVV	R1, g_stackguard1(g)

	// if there is a _cgo_init, call it using the gcc ABI.
	MOV	_cgo_init(SB), T0
	BEQ	T0, ZERO, nocgo

	MOV	ZERO, A3		// arg 3: not used
	MOV	ZERO, A2		// arg 2: not used
	MOV	$setg_gcc<>(SB), A1	// arg 1: setg
	MOV	g, A0			// arg 0: G
	JALR	RA, T0

nocgo:
	// update stackguard after _cgo_init
	MOV	(g_stack+stack_lo)(g), T0
	ADD	$const_stackGuard, T0
	MOV	T0, g_stackguard0(g)
	MOV	T0, g_stackguard1(g)

	CMPBEQ	R11, $0, nocgo
	MOVW	AR0, R4			// (AR0 << 32 | AR1) is the TLS base pointer; MOVD is translated to EAR
	SLD	$32, R4, R4
	MOVW	AR1, R4			// arg 2: TLS base pointer
	MOVD	$setg_gcc<>(SB), R3 	// arg 1: setg
	MOVD	g, R2			// arg 0: G
	// C functions expect 160 bytes of space on caller stack frame
	// and an 8-byte aligned stack pointer
	MOVD	R15, R9			// save current stack (R9 is preserved in the Linux ABI)

	// if there is a _cgo_init, call it using the gcc ABI.
	MOVV	_cgo_init(SB), R25
	BEQ	R25, nocgo

	MOVV	R0, R7	// arg 3: not used
	MOVV	R0, R6	// arg 2: not used
	MOVV	$setg_gcc<>(SB), R5	// arg 1: setg
	MOVV	g, R4	// arg 0: G
	JAL	(R25)

nocgo:
	// update stackguard after _cgo_init
	MOVV	(g_stack+stack_lo)(g), R19
	ADDV	$const_stackGuard, R19
	MOVV	R19, g_stackguard0(g)
	MOVV	R19, g_stackguard1(g)

	// if there is a _cgo_init, call it using the gcc ABI.
	MOVW	_cgo_init(SB), R25
	BEQ	R25, nocgo
	ADDU	$-16, R29
	MOVW	R0, R7	// arg 3: not used
	MOVW	R0, R6	// arg 2: not used
	MOVW	$setg_gcc<>(SB), R5	// arg 1: setg
	MOVW	g, R4	// arg 0: G
	JAL	(R25)
	ADDU	$16, R29

nocgo:
	// update stackguard after _cgo_init
	MOVW	(g_stack+stack_lo)(g), R1
	ADD	$const_stackGuard, R1
	MOVW	R1, g_stackguard0(g)

				break SuffixLoop
			}
		}
	}

	if needSuffix {
		switch inst.Op {
		case CMPXCHG8B, FLDCW, FNSTCW, FNSTSW, LDMXCSR, LLDT, LMSW, LTR, PCLMULQDQ,
			SETA, SETAE, SETB, SETBE, SETE, SETG, SETGE, SETL, SETLE, SETNE, SETNO, SETNP, SETNS, SETO, SETP, SETS,
			SLDT, SMSW, STMXCSR, STR, VERR, VERW:
			// For various reasons, libopcodes emits no suffix for these instructions.

		case CRC32:

//
// When fn is nil (frame is saved g), call dropm instead,
// this is used when the C thread is exiting.
func cgocallback(fn, frame, ctxt uintptr)

func gogo(buf *gobuf)

func asminit()
func setg(gg *g)
func breakpoint()

// reflectcall calls fn with arguments described by stackArgs, stackArgsSize,
// frameSize, and regArgs.
//
// Arguments passed on the stack and space for return values passed on the stack

		gpspsbg    = gpspg | buildReg("SB")
		fp         = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31")
		callerSave = gp | fp | buildReg("g") // runtime.setg (and anything calling it) may clobber g
		r1         = buildReg("R20")
		r2         = buildReg("R21")
		r3         = buildReg("R23")
		r4         = buildReg("R24")
	)
	// Common regInfo
	var (