MOVD	R2, 8(R15)	// fn unsafe.Pointer
	MOVD	R3, 16(R15)	// a unsafe.Pointer
	// Skip R4 = n uint32
	MOVD	R5, 24(R15)	// ctxt uintptr
	BL	runtime·cgocallback(SB)

	FMOVD	32(R15), F8
	FMOVD	40(R15), F9
	FMOVD	48(R15), F10
	FMOVD	56(R15), F11
	FMOVD	64(R15), F12
	FMOVD	72(R15), F13
	FMOVD	80(R15), F14
	FMOVD	88(R15), F15

	// De-allocate stack frame.
	MOVD	$96(R15), R15

	// Restore R6-R15.

	CALL ·asyncPreempt2(SB)
	FMOVD 240(R15), F15
	FMOVD 232(R15), F14
	FMOVD 224(R15), F13
	FMOVD 216(R15), F12
	FMOVD 208(R15), F11
	FMOVD 200(R15), F10
	FMOVD 192(R15), F9
	FMOVD 184(R15), F8
	FMOVD 176(R15), F7
	FMOVD 168(R15), F6
	FMOVD 160(R15), F5
	FMOVD 152(R15), F4
	FMOVD 144(R15), F3
	FMOVD 136(R15), F2
	FMOVD 128(R15), F1
	FMOVD 120(R15), F0
	LMG 16(R15), R0, R12
	MOVD 248(R15), R14

	MOVD	R1, 8(R15)                 // fn
	MOVD	$runtime·newosproc(SB), R1
	BL	R1

restore:
	// Restore F8-F15 from our stack frame.
	FMOVD	16(R15), F8
	FMOVD	24(R15), F9
	FMOVD	32(R15), F10
	FMOVD	40(R15), F11
	FMOVD	48(R15), F12
	FMOVD	56(R15), F13
	FMOVD	64(R15), F14
	FMOVD	72(R15), F15
	MOVD	$80(R15), R15

	// Restore R6-R15.
	LMG	48(R15), R6, R15
	RET

// _rt0_s390x_lib_go initializes the Go runtime.

	SHA256ROUND0(6, 0x923f82a4, R10, R11, R12, R13, R14, R15, R8, R9)
	SHA256ROUND0(7, 0xab1c5ed5, R9, R10, R11, R12, R13, R14, R15, R8)
	SHA256ROUND0(8, 0xd807aa98, R8, R9, R10, R11, R12, R13, R14, R15)
	SHA256ROUND0(9, 0x12835b01, R15, R8, R9, R10, R11, R12, R13, R14)
	SHA256ROUND0(10, 0x243185be, R14, R15, R8, R9, R10, R11, R12, R13)
	SHA256ROUND0(11, 0x550c7dc3, R13, R14, R15, R8, R9, R10, R11, R12)

	SHA512ROUND0(5, 0x59f111f1b605d019, R11, R12, R13, R14, R15, R8, R9, R10)
	SHA512ROUND0(6, 0x923f82a4af194f9b, R10, R11, R12, R13, R14, R15, R8, R9)
	SHA512ROUND0(7, 0xab1c5ed5da6d8118, R9, R10, R11, R12, R13, R14, R15, R8)
	SHA512ROUND0(8, 0xd807aa98a3030242, R8, R9, R10, R11, R12, R13, R14, R15)
	SHA512ROUND0(9, 0x12835b0145706fbe, R15, R8, R9, R10, R11, R12, R13, R14)

	VBROADCASTF32X4 (CX), K1, Y24                      // 62627d291a01
	VBROADCASTF32X4 99(R15), K1, Y24                   // 62427d291a8763000000
	VBROADCASTF32X4 99(R15)(R15*2), K2, Z12            // 62127d4a1aa47f63000000
	VBROADCASTF32X4 -7(DI), K2, Z12                    // 62727d4a1aa7f9ffffff
	VBROADCASTF32X4 99(R15)(R15*2), K2, Z16            // 62827d4a1a847f63000000

	XORQ R15, R15
	RET
TEXT ·a5(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	XORL R15, R15
	RET
TEXT ·a6(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	POPQ R15
	PUSHQ R15
	RET
TEXT ·a7(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	MOVQ R15, AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
	RET
TEXT ·a8(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0

	std     %f9, 8(%r15)
	std     %f10, 16(%r15)
	std     %f11, 24(%r15)
	std     %f12, 32(%r15)
	std     %f13, 40(%r15)
	std     %f14, 48(%r15)
	std     %f15, 56(%r15)

	/* restore g pointer */
	lgr     %r13, %r3

	/* call fn */
	basr    %r14, %r2

	/* restore floating point registers */
	ld      %f8, 0(%r15)
	ld      %f9, 8(%r15)
	ld      %f10, 16(%r15)
	ld      %f11, 24(%r15)
	ld      %f12, 32(%r15)

	V4FNMADDPS 99(R15)(R15*1), [Z1-Z4], K3, Z15        // 6212774baabc3f63000000
	V4FNMADDPS (DX), [Z1-Z4], K3, Z15                  // 6272774baa3a
	V4FNMADDPS 99(R15)(R15*1), [Z11-Z14], K3, Z15      // 6212274baabc3f63000000
	V4FNMADDPS (DX), [Z11-Z14], K3, Z15                // 6272274baa3a
	V4FNMADDPS 99(R15)(R15*1), [Z21-Z24], K3, Z15      // 62125743aabc3f63000000

// for more details.
// No arg size here, runtime pulls arg map out of the func value.
TEXT ·makeFuncStub(SB),(NOSPLIT|WRAPPER),$40
	NO_LOCAL_POINTERS
	MOVD	R12, 8(R15)
	MOVD	$argframe+0(FP), R3
	MOVD	R3, 16(R15)
	MOVB	$0, 40(R15)
	ADD	$40, R15, R3
	MOVD	R3, 24(R15)
	MOVD	$0, 32(R15)
	BL	·callReflect(SB)
	RET

// methodValueCall is the code half of the function returned by makeMethodValue.