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// 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"
/*
* void crosscall2(void (*fn)(void*, int32), void*, int32)
* Save registers and call fn with two arguments.
*/
TEXT crosscall2(SB),NOSPLIT,$0
SUBQ $0x58, SP /* keeps stack pointer 32-byte aligned */
MOVQ BX, 0x10(SP)
MOVQ BP, 0x18(SP)
MOVQ R12, 0x20(SP)
MOVQ R13, 0x28(SP)
MOVQ R14, 0x30(SP)
MOVQ R15, 0x38(SP)
#ifdef GOOS_windows
// Win64 save RBX, RBP, RDI, RSI, RSP, R12, R13, R14, and R15
MOVQ DI, 0x40(SP)
MOVQ SI, 0x48(SP)
MOVQ DX, 0(SP) /* arg */
MOVQ R8, 8(SP) /* argsize (includes padding) */
CALL CX /* fn */
MOVQ 0x40(SP), DI
MOVQ 0x48(SP), SI
#else
MOVQ SI, 0(SP) /* arg */
MOVQ DX, 8(SP) /* argsize (includes padding) */
CALL DI /* fn */
#endif
MOVQ 0x10(SP), BX
MOVQ 0x18(SP), BP
MOVQ 0x20(SP), R12
MOVQ 0x28(SP), R13
MOVQ 0x30(SP), R14
MOVQ 0x38(SP), R15
ADDQ $0x58, SP
RET
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