1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Copyright (c) 2021 Loongson Technology Corporation Limited 4 */ 5 6static bool gen_rr(DisasContext *ctx, arg_rr *a, 7 DisasExtend src_ext, DisasExtend dst_ext, 8 void (*func)(TCGv, TCGv)) 9{ 10 TCGv dest = gpr_dst(ctx, a->rd, dst_ext); 11 TCGv src1 = gpr_src(ctx, a->rj, src_ext); 12 13 func(dest, src1); 14 gen_set_gpr(a->rd, dest, dst_ext); 15 16 return true; 17} 18 19static void gen_bytepick_w(TCGv dest, TCGv src1, TCGv src2, target_long sa) 20{ 21 tcg_gen_concat_tl_i64(dest, src1, src2); 22 tcg_gen_sextract_i64(dest, dest, (32 - sa * 8), 32); 23} 24 25static void gen_bytepick_d(TCGv dest, TCGv src1, TCGv src2, target_long sa) 26{ 27 tcg_gen_extract2_i64(dest, src1, src2, (64 - sa * 8)); 28} 29 30static bool gen_bstrins(DisasContext *ctx, arg_rr_ms_ls *a, 31 DisasExtend dst_ext) 32{ 33 TCGv src1 = gpr_src(ctx, a->rd, EXT_NONE); 34 TCGv src2 = gpr_src(ctx, a->rj, EXT_NONE); 35 TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); 36 37 if (a->ls > a->ms) { 38 return false; 39 } 40 41 tcg_gen_deposit_tl(dest, src1, src2, a->ls, a->ms - a->ls + 1); 42 gen_set_gpr(a->rd, dest, dst_ext); 43 return true; 44} 45 46static bool gen_bstrpick(DisasContext *ctx, arg_rr_ms_ls *a, 47 DisasExtend dst_ext) 48{ 49 TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); 50 TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); 51 52 if (a->ls > a->ms) { 53 return false; 54 } 55 56 tcg_gen_extract_tl(dest, src1, a->ls, a->ms - a->ls + 1); 57 gen_set_gpr(a->rd, dest, dst_ext); 58 return true; 59} 60 61static void gen_clz_w(TCGv dest, TCGv src1) 62{ 63 tcg_gen_clzi_tl(dest, src1, TARGET_LONG_BITS); 64 tcg_gen_subi_tl(dest, dest, TARGET_LONG_BITS - 32); 65} 66 67static void gen_clo_w(TCGv dest, TCGv src1) 68{ 69 tcg_gen_not_tl(dest, src1); 70 tcg_gen_ext32u_tl(dest, dest); 71 gen_clz_w(dest, dest); 72} 73 74static void gen_ctz_w(TCGv dest, TCGv src1) 75{ 76 tcg_gen_ori_tl(dest, src1, (target_ulong)MAKE_64BIT_MASK(32, 32)); 77 tcg_gen_ctzi_tl(dest, dest, TARGET_LONG_BITS); 78} 79 80static void gen_cto_w(TCGv dest, TCGv src1) 81{ 82 tcg_gen_not_tl(dest, src1); 83 gen_ctz_w(dest, dest); 84} 85 86static void gen_clz_d(TCGv dest, TCGv src1) 87{ 88 tcg_gen_clzi_i64(dest, src1, TARGET_LONG_BITS); 89} 90 91static void gen_clo_d(TCGv dest, TCGv src1) 92{ 93 tcg_gen_not_tl(dest, src1); 94 gen_clz_d(dest, dest); 95} 96 97static void gen_ctz_d(TCGv dest, TCGv src1) 98{ 99 tcg_gen_ctzi_tl(dest, src1, TARGET_LONG_BITS); 100} 101 102static void gen_cto_d(TCGv dest, TCGv src1) 103{ 104 tcg_gen_not_tl(dest, src1); 105 gen_ctz_d(dest, dest); 106} 107 108static void gen_revb_2w(TCGv dest, TCGv src1) 109{ 110 tcg_gen_bswap64_i64(dest, src1); 111 tcg_gen_rotri_i64(dest, dest, 32); 112} 113 114static void gen_revb_2h(TCGv dest, TCGv src1) 115{ 116 TCGv mask = tcg_constant_tl(0x00FF00FF); 117 TCGv t0 = tcg_temp_new(); 118 TCGv t1 = tcg_temp_new(); 119 120 tcg_gen_shri_tl(t0, src1, 8); 121 tcg_gen_and_tl(t0, t0, mask); 122 tcg_gen_and_tl(t1, src1, mask); 123 tcg_gen_shli_tl(t1, t1, 8); 124 tcg_gen_or_tl(dest, t0, t1); 125 126 tcg_temp_free(t0); 127 tcg_temp_free(t1); 128} 129 130static void gen_revb_4h(TCGv dest, TCGv src1) 131{ 132 TCGv mask = tcg_constant_tl(0x00FF00FF00FF00FFULL); 133 TCGv t0 = tcg_temp_new(); 134 TCGv t1 = tcg_temp_new(); 135 136 tcg_gen_shri_tl(t0, src1, 8); 137 tcg_gen_and_tl(t0, t0, mask); 138 tcg_gen_and_tl(t1, src1, mask); 139 tcg_gen_shli_tl(t1, t1, 8); 140 tcg_gen_or_tl(dest, t0, t1); 141 142 tcg_temp_free(t0); 143 tcg_temp_free(t1); 144} 145 146static void gen_revh_2w(TCGv dest, TCGv src1) 147{ 148 TCGv_i64 t0 = tcg_temp_new_i64(); 149 TCGv_i64 t1 = tcg_temp_new_i64(); 150 TCGv_i64 mask = tcg_constant_i64(0x0000ffff0000ffffull); 151 152 tcg_gen_shri_i64(t0, src1, 16); 153 tcg_gen_and_i64(t1, src1, mask); 154 tcg_gen_and_i64(t0, t0, mask); 155 tcg_gen_shli_i64(t1, t1, 16); 156 tcg_gen_or_i64(dest, t1, t0); 157 158 tcg_temp_free_i64(t0); 159 tcg_temp_free_i64(t1); 160} 161 162static void gen_revh_d(TCGv dest, TCGv src1) 163{ 164 TCGv t0 = tcg_temp_new(); 165 TCGv t1 = tcg_temp_new(); 166 TCGv mask = tcg_constant_tl(0x0000FFFF0000FFFFULL); 167 168 tcg_gen_shri_tl(t1, src1, 16); 169 tcg_gen_and_tl(t1, t1, mask); 170 tcg_gen_and_tl(t0, src1, mask); 171 tcg_gen_shli_tl(t0, t0, 16); 172 tcg_gen_or_tl(t0, t0, t1); 173 tcg_gen_rotri_tl(dest, t0, 32); 174 175 tcg_temp_free(t0); 176 tcg_temp_free(t1); 177} 178 179static void gen_maskeqz(TCGv dest, TCGv src1, TCGv src2) 180{ 181 TCGv zero = tcg_constant_tl(0); 182 183 tcg_gen_movcond_tl(TCG_COND_EQ, dest, src2, zero, zero, src1); 184} 185 186static void gen_masknez(TCGv dest, TCGv src1, TCGv src2) 187{ 188 TCGv zero = tcg_constant_tl(0); 189 190 tcg_gen_movcond_tl(TCG_COND_NE, dest, src2, zero, zero, src1); 191} 192 193TRANS(ext_w_h, gen_rr, EXT_NONE, EXT_NONE, tcg_gen_ext16s_tl) 194TRANS(ext_w_b, gen_rr, EXT_NONE, EXT_NONE, tcg_gen_ext8s_tl) 195TRANS(clo_w, gen_rr, EXT_NONE, EXT_NONE, gen_clo_w) 196TRANS(clz_w, gen_rr, EXT_ZERO, EXT_NONE, gen_clz_w) 197TRANS(cto_w, gen_rr, EXT_NONE, EXT_NONE, gen_cto_w) 198TRANS(ctz_w, gen_rr, EXT_NONE, EXT_NONE, gen_ctz_w) 199TRANS(clo_d, gen_rr, EXT_NONE, EXT_NONE, gen_clo_d) 200TRANS(clz_d, gen_rr, EXT_NONE, EXT_NONE, gen_clz_d) 201TRANS(cto_d, gen_rr, EXT_NONE, EXT_NONE, gen_cto_d) 202TRANS(ctz_d, gen_rr, EXT_NONE, EXT_NONE, gen_ctz_d) 203TRANS(revb_2h, gen_rr, EXT_NONE, EXT_SIGN, gen_revb_2h) 204TRANS(revb_4h, gen_rr, EXT_NONE, EXT_NONE, gen_revb_4h) 205TRANS(revb_2w, gen_rr, EXT_NONE, EXT_NONE, gen_revb_2w) 206TRANS(revb_d, gen_rr, EXT_NONE, EXT_NONE, tcg_gen_bswap64_i64) 207TRANS(revh_2w, gen_rr, EXT_NONE, EXT_NONE, gen_revh_2w) 208TRANS(revh_d, gen_rr, EXT_NONE, EXT_NONE, gen_revh_d) 209TRANS(bitrev_4b, gen_rr, EXT_ZERO, EXT_SIGN, gen_helper_bitswap) 210TRANS(bitrev_8b, gen_rr, EXT_NONE, EXT_NONE, gen_helper_bitswap) 211TRANS(bitrev_w, gen_rr, EXT_NONE, EXT_SIGN, gen_helper_bitrev_w) 212TRANS(bitrev_d, gen_rr, EXT_NONE, EXT_NONE, gen_helper_bitrev_d) 213TRANS(maskeqz, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_maskeqz) 214TRANS(masknez, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_masknez) 215TRANS(bytepick_w, gen_rrr_sa, EXT_NONE, EXT_NONE, gen_bytepick_w) 216TRANS(bytepick_d, gen_rrr_sa, EXT_NONE, EXT_NONE, gen_bytepick_d) 217TRANS(bstrins_w, gen_bstrins, EXT_SIGN) 218TRANS(bstrins_d, gen_bstrins, EXT_NONE) 219TRANS(bstrpick_w, gen_bstrpick, EXT_SIGN) 220TRANS(bstrpick_d, gen_bstrpick, EXT_NONE) 221