1 /* 2 * Copyright (C) 2012-2019 Free Software Foundation, Inc. 3 * 4 * This file is part of GNU lightning. 5 * 6 * GNU lightning is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU Lesser General Public License as published 8 * by the Free Software Foundation; either version 3, or (at your option) 9 * any later version. 10 * 11 * GNU lightning is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 14 * License for more details. 15 * 16 * Authors: 17 * Paulo Cesar Pereira de Andrade 18 */ 19 20 #ifndef _jit_arm_h 21 #define _jit_arm_h 22 23 #define JIT_HASH_CONSTS 0 24 #define JIT_NUM_OPERANDS 3 25 26 /* 27 * Types 28 */ 29 #define jit_swf_p() (jit_cpu.vfp == 0) 30 #define jit_hardfp_p() jit_cpu.abi 31 #define jit_ldrt_strt_p() jit_cpu.ldrt_strt 32 33 #define JIT_FP _R11 34 typedef enum { 35 #define jit_r(i) (_R4 + (i)) 36 #define jit_r_num() 3 37 #define jit_v(i) (_R7 + (i)) 38 #define jit_v_num() 3 39 #define jit_f(i) (jit_cpu.abi ? _D8 + ((i)<<1) : _D0 - ((i)<<1)) 40 #define jit_f_num() 8 41 _R12, /* ip - temporary */ 42 #define JIT_R0 _R4 43 #define JIT_R1 _R5 44 #define JIT_R2 _R6 45 _R4, /* r4 - variable */ 46 _R5, /* r5 - variable */ 47 _R6, /* r6 - variable */ 48 #define JIT_V0 _R7 49 #define JIT_V1 _R8 50 #define JIT_V2 _R9 51 _R7, /* r7 - variable */ 52 _R8, /* r8 - variable */ 53 _R9, /* r9 - variable */ 54 _R10, /* sl - stack limit */ 55 _R11, /* fp - frame pointer */ 56 _R13, /* sp - stack pointer */ 57 _R14, /* lr - link register */ 58 _R15, /* pc - program counter */ 59 _R3, /* r3 - argument/result */ 60 _R2, /* r2 - argument/result */ 61 _R1, /* r1 - argument/result */ 62 _R0, /* r0 - argument/result */ 63 #define JIT_F0 (jit_hardfp_p() ? _D8 : _D0) 64 #define JIT_F1 (jit_hardfp_p() ? _D9 : _D1) 65 #define JIT_F2 (jit_hardfp_p() ? _D10 : _D2) 66 #define JIT_F3 (jit_hardfp_p() ? _D11 : _D3) 67 #define JIT_F4 (jit_hardfp_p() ? _D12 : _D4) 68 #define JIT_F5 (jit_hardfp_p() ? _D13 : _D5) 69 #define JIT_F6 (jit_hardfp_p() ? _D14 : _D6) 70 #define JIT_F7 (jit_hardfp_p() ? _D15 : _D7) 71 _S16, _D8 = _S16, _Q4 = _D8, 72 _S17, 73 _S18, _D9 = _S18, 74 _S19, 75 _S20, _D10 = _S20, _Q5 = _D10, 76 _S21, 77 _S22, _D11 = _S22, 78 _S23, 79 _S24, _D12 = _S24, _Q6 = _D12, 80 _S25, 81 _S26, _D13 = _S26, 82 _S27, 83 _S28, _D14 = _S28, _Q7 = _D14, 84 _S29, 85 _S30, _D15 = _S30, 86 _S31, 87 _S15, 88 _S14, _D7 = _S14, 89 _S13, 90 _S12, _D6 = _S12, _Q3 = _D6, 91 _S11, 92 _S10, _D5 = _S10, 93 _S9, 94 _S8, _D4 = _S8, _Q2 = _D4, 95 _S7, 96 _S6, _D3 = _S6, 97 _S5, 98 _S4, _D2 = _S4, _Q1 = _D2, 99 _S3, 100 _S2, _D1 = _S2, 101 _S1, 102 _S0, _D0 = _S0, _Q0 = _D0, 103 _NOREG, 104 #define JIT_NOREG _NOREG 105 } jit_reg_t; 106 107 typedef struct { 108 jit_uint32_t version : 4; 109 jit_uint32_t extend : 1; 110 /* only generate thumb instructions for thumb2 */ 111 jit_uint32_t thumb : 1; 112 jit_uint32_t vfp : 3; 113 jit_uint32_t neon : 1; 114 jit_uint32_t abi : 2; 115 /* use strt+offset instead of str.w? 116 * on special cases it causes a SIGILL at least on qemu, probably 117 * due to some memory ordering constraint not being respected, so, 118 * disable by default */ 119 jit_uint32_t ldrt_strt : 1; 120 } jit_cpu_t; 121 122 /* 123 * Initialization 124 */ 125 extern jit_cpu_t jit_cpu; 126 127 #endif /* _jit_arm_h */ 128