// the "frame" to cgocallback and on to callbackWrap.
	SUBQ	$(24+callbackArgs__size), SP
	MOVQ	AX, (24+callbackArgs_index)(SP) 	// callback index
	MOVQ	R8, (24+callbackArgs_args)(SP)  	// address of args vector
	MOVQ	$0, (24+callbackArgs_result)(SP)	// result
	LEAQ	24(SP), AX
	// Call cgocallback, which will call callbackWrap(frame).
	MOVQ	$0, 16(SP)	// context

	MOVL	$0, (12+callbackArgs_result)(SP)	// result
	LEAL	12(SP), AX	// AX = &callbackArgs{...}

	// Call cgocallback, which will call callbackWrap(frame).
	MOVL	$0, 8(SP)	// context
	MOVL	AX, 4(SP)	// frame (address of callbackArgs)
	LEAL	·callbackWrap(SB), AX
	MOVL	AX, 0(SP)	// PC of function to call
	CALL	runtime·cgocallback(SB)

	// Get callback result.
	MOVL	(12+callbackArgs_result)(SP), AX

	MOVD	R14, R0
	MOVD	R0, callbackArgs_args(R13)		// address of args vector
	MOVD	$0, R0
	MOVD	R0, callbackArgs_result(R13)	// result

	// Call cgocallback, which will call callbackWrap(frame).
	MOVD	$·callbackWrap<ABIInternal>(SB), R0	// PC of function to call, cgocallback takes an ABIInternal entry-point
	MOVD	R13, R1	// frame (&callbackArgs{...})
	MOVD	$0, R2	// context
	STP	(R0, R1), (1*8)(RSP)

	// Prepare for entry to Go.
	BL	runtime·load_g(SB)

	// Call cgocallback, which will call callbackWrap(frame).
	MOVW	$0, R0
	MOVW	R0, 12(R13)	// context
	MOVW	$16(R13), R1	// R1 = &callbackArgs{...}
	MOVW	R1, 8(R13)	// frame (address of callbackArgs)
	MOVW	$·callbackWrap(SB), R1
	MOVW	R1, 4(R13)	// PC of function to call
	BL	runtime·cgocallback(SB)

	// Get callback result.