| // 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 |
