// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "textflag.h"

// Called by C code generated by cmd/cgo.
// func crosscall2(fn, a unsafe.Pointer, n int32, ctxt uintptr)
// Saves C callee-saved registers and calls cgocallback with three arguments.
// fn is the PC of a func(a unsafe.Pointer) function.
TEXT crosscall2(SB), NOSPLIT, $28-16
	MOVL BP, 24(SP)
	MOVL BX, 20(SP)
	MOVL SI, 16(SP)
	MOVL DI, 12(SP)

	MOVL ctxt+12(FP), AX
	MOVL AX, 8(SP)
	MOVL a+4(FP), AX
	MOVL AX, 4(SP)
	MOVL fn+0(FP), AX
	MOVL AX, 0(SP)
	CALL runtime·cgocallback(SB)

	MOVL 12(SP), DI
	MOVL 16(SP), SI
	MOVL 20(SP), BX
	MOVL 24(SP), BP
	RET
