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// Copyright 2022 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.
// Macros for transitioning from the host ABI to Go ABI0.
//
// These macros save and restore the callee-saved registers
// from the stack, but they don't adjust stack pointer, so
// the user should prepare stack space in advance.
// SAVE_R22_TO_R31(offset) saves R22 ~ R31 to the stack space
// of ((offset)+0*8)(R3) ~ ((offset)+9*8)(R3).
//
// SAVE_F24_TO_F31(offset) saves F24 ~ F31 to the stack space
// of ((offset)+0*8)(R3) ~ ((offset)+7*8)(R3).
//
// Note: g is R22
#define SAVE_R22_TO_R31(offset) \
MOVV g, ((offset)+(0*8))(R3) \
MOVV R23, ((offset)+(1*8))(R3) \
MOVV R24, ((offset)+(2*8))(R3) \
MOVV R25, ((offset)+(3*8))(R3) \
MOVV R26, ((offset)+(4*8))(R3) \
MOVV R27, ((offset)+(5*8))(R3) \
MOVV R28, ((offset)+(6*8))(R3) \
MOVV R29, ((offset)+(7*8))(R3) \
MOVV R30, ((offset)+(8*8))(R3) \
MOVV R31, ((offset)+(9*8))(R3)
#define SAVE_F24_TO_F31(offset) \
MOVD F24, ((offset)+(0*8))(R3) \
MOVD F25, ((offset)+(1*8))(R3) \
MOVD F26, ((offset)+(2*8))(R3) \
MOVD F27, ((offset)+(3*8))(R3) \
MOVD F28, ((offset)+(4*8))(R3) \
MOVD F29, ((offset)+(5*8))(R3) \
MOVD F30, ((offset)+(6*8))(R3) \
MOVD F31, ((offset)+(7*8))(R3)
#define RESTORE_R22_TO_R31(offset) \
MOVV ((offset)+(0*8))(R3), g \
MOVV ((offset)+(1*8))(R3), R23 \
MOVV ((offset)+(2*8))(R3), R24 \
MOVV ((offset)+(3*8))(R3), R25 \
MOVV ((offset)+(4*8))(R3), R26 \
MOVV ((offset)+(5*8))(R3), R27 \
MOVV ((offset)+(6*8))(R3), R28 \
MOVV ((offset)+(7*8))(R3), R29 \
MOVV ((offset)+(8*8))(R3), R30 \
MOVV ((offset)+(9*8))(R3), R31
#define RESTORE_F24_TO_F31(offset) \
MOVD ((offset)+(0*8))(R3), F24 \
MOVD ((offset)+(1*8))(R3), F25 \
MOVD ((offset)+(2*8))(R3), F26 \
MOVD ((offset)+(3*8))(R3), F27 \
MOVD ((offset)+(4*8))(R3), F28 \
MOVD ((offset)+(5*8))(R3), F29 \
MOVD ((offset)+(6*8))(R3), F30 \
MOVD ((offset)+(7*8))(R3), F31
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