| 1 | // -*- C -*- |
| 2 | |
| 3 | // Simulator definition for the MIPS 32/64 revision 2 instructions. |
| 4 | // Copyright (C) 2004 Free Software Foundation, Inc. |
| 5 | // Contributed by David Ung, of MIPS Technologies. |
| 6 | // |
| 7 | // This file is part of GDB, the GNU debugger. |
| 8 | // |
| 9 | // This program is free software; you can redistribute it and/or modify |
| 10 | // it under the terms of the GNU General Public License as published by |
| 11 | // the Free Software Foundation; either version 2, or (at your option) |
| 12 | // any later version. |
| 13 | // |
| 14 | // This program is distributed in the hope that it will be useful, |
| 15 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | // GNU General Public License for more details. |
| 18 | // |
| 19 | // You should have received a copy of the GNU General Public License along |
| 20 | // with this program; if not, write to the Free Software Foundation, Inc., |
| 21 | // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | |
| 23 | |
| 24 | 011111,5.RS,5.RT,5.SIZE,5.LSB,000011::64::DEXT |
| 25 | "dext r<RT>, r<RS>, <LSB>, <SIZE+1>" |
| 26 | *mips64r2: |
| 27 | { |
| 28 | check_u64 (SD_, instruction_0); |
| 29 | TRACE_ALU_INPUT3 (GPR[RS], LSB, SIZE); |
| 30 | GPR[RT] = EXTRACTED64 (GPR[RS], LSB + SIZE, LSB); |
| 31 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 32 | } |
| 33 | |
| 34 | 011111,5.RS,5.RT,5.SIZE,5.LSB,000001::64::DEXTM |
| 35 | "dextm r<RT>, r<RS>, <LSB>, <SIZE+33>" |
| 36 | *mips64r2: |
| 37 | { |
| 38 | check_u64 (SD_, instruction_0); |
| 39 | TRACE_ALU_INPUT3 (GPR[RS], LSB, SIZE); |
| 40 | GPR[RT] = EXTRACTED64 (GPR[RS], LSB + SIZE + 32, LSB); |
| 41 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 42 | } |
| 43 | |
| 44 | 011111,5.RS,5.RT,5.SIZE,5.LSB,000010::64::DEXTU |
| 45 | "dextu r<RT>, r<RS>, <LSB+32>, <SIZE+1>" |
| 46 | *mips64r2: |
| 47 | { |
| 48 | check_u64 (SD_, instruction_0); |
| 49 | TRACE_ALU_INPUT3 (GPR[RS], LSB, SIZE); |
| 50 | GPR[RT] = EXTRACTED64 (GPR[RS], LSB + 32 + SIZE, LSB + 32); |
| 51 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 52 | } |
| 53 | |
| 54 | |
| 55 | 010000,01011,5.RT,01100,00000,0,00,000::32::DI |
| 56 | "di":RT == 0 |
| 57 | "di r<RT>" |
| 58 | *mips32r2: |
| 59 | *mips64r2: |
| 60 | { |
| 61 | TRACE_ALU_INPUT0 (); |
| 62 | GPR[RT] = EXTEND32 (SR); |
| 63 | SR &= ~status_IE; |
| 64 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | 011111,5.RS,5.RT,5.MSB,5.LSB,000111::64::DINS |
| 69 | "dins r<RT>, r<RS>, <LSB>, <MSB-LSB+1>" |
| 70 | *mips64r2: |
| 71 | { |
| 72 | check_u64 (SD_, instruction_0); |
| 73 | TRACE_ALU_INPUT4 (GPR[RT], GPR[RS], LSB, MSB); |
| 74 | if (LSB <= MSB) |
| 75 | GPR[RT] ^= (GPR[RT] ^ (GPR[RS] << LSB)) & MASK64 (MSB, LSB); |
| 76 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 77 | } |
| 78 | |
| 79 | 011111,5.RS,5.RT,5.MSB,5.LSB,000101::64::DINSM |
| 80 | "dinsm r<RT>, r<RS>, <LSB>, <MSB+32-LSB+1>" |
| 81 | *mips64r2: |
| 82 | { |
| 83 | check_u64 (SD_, instruction_0); |
| 84 | TRACE_ALU_INPUT4 (GPR[RT], GPR[RS], LSB, MSB); |
| 85 | if (LSB <= MSB + 32) |
| 86 | GPR[RT] ^= (GPR[RT] ^ (GPR[RS] << LSB)) & MASK64 (MSB + 32, LSB); |
| 87 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 88 | } |
| 89 | |
| 90 | 011111,5.RS,5.RT,5.MSB,5.LSB,000110::64::DINSU |
| 91 | "dinsu r<RT>, r<RS>, <LSB+32>, <MSB-LSB+1>" |
| 92 | *mips64r2: |
| 93 | { |
| 94 | check_u64 (SD_, instruction_0); |
| 95 | TRACE_ALU_INPUT4 (GPR[RT], GPR[RS], LSB, MSB); |
| 96 | if (LSB <= MSB) |
| 97 | GPR[RT] ^= (GPR[RT] ^ (GPR[RS] << (LSB + 32))) |
| 98 | & MASK64 (MSB + 32, LSB + 32); |
| 99 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 100 | } |
| 101 | |
| 102 | |
| 103 | 011111,00000,5.RT,5.RD,00010,100100::64::DSBH |
| 104 | "dsbh r<RD>, r<RT>" |
| 105 | *mips64r2: |
| 106 | { |
| 107 | union { unsigned64 d; unsigned16 h[4]; } u; |
| 108 | check_u64 (SD_, instruction_0); |
| 109 | TRACE_ALU_INPUT1 (GPR[RT]); |
| 110 | u.d = GPR[RT]; |
| 111 | u.h[0] = SWAP_2 (u.h[0]); |
| 112 | u.h[1] = SWAP_2 (u.h[1]); |
| 113 | u.h[2] = SWAP_2 (u.h[2]); |
| 114 | u.h[3] = SWAP_2 (u.h[3]); |
| 115 | GPR[RD] = u.d; |
| 116 | TRACE_ALU_RESULT1 (GPR[RD]); |
| 117 | } |
| 118 | |
| 119 | 011111,00000,5.RT,5.RD,00101,100100::64::DSHD |
| 120 | "dshd r<RD>, r<RT>" |
| 121 | *mips64r2: |
| 122 | { |
| 123 | unsigned64 d; |
| 124 | check_u64 (SD_, instruction_0); |
| 125 | TRACE_ALU_INPUT1 (GPR[RT]); |
| 126 | d = GPR[RT]; |
| 127 | GPR[RD] = ((d >> 48) |
| 128 | | (d << 48) |
| 129 | | ((d & 0x0000ffff00000000) >> 16) |
| 130 | | ((d & 0x00000000ffff0000) << 16)); |
| 131 | TRACE_ALU_RESULT1 (GPR[RD]); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | 010000,01011,5.RT,01100,00000,1,00,000::32::EI |
| 136 | "ei":RT == 0 |
| 137 | "ei r<RT>" |
| 138 | *mips32r2: |
| 139 | *mips64r2: |
| 140 | { |
| 141 | TRACE_ALU_INPUT0 (); |
| 142 | GPR[RT] = EXTEND32 (SR); |
| 143 | SR |= status_IE; |
| 144 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 145 | } |
| 146 | |
| 147 | |
| 148 | 011111,5.RS,5.RT,5.SIZE,5.LSB,000000::32::EXT |
| 149 | "ext r<RT>, r<RS>, <LSB>, <SIZE+1>" |
| 150 | *mips32r2: |
| 151 | *mips64r2: |
| 152 | { |
| 153 | TRACE_ALU_INPUT3 (GPR[RS], LSB, SIZE); |
| 154 | GPR[RT] = EXTEND32 (EXTRACTED32 (GPR[RS], LSB + SIZE, LSB)); |
| 155 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 156 | } |
| 157 | |
| 158 | |
| 159 | 010001,00011,5.RT,5.FS,00000000000:COP1Sa:32,f::MFHC1 |
| 160 | "mfhc1 r<RT>, f<FS>" |
| 161 | *mips32r2: |
| 162 | *mips64r2: |
| 163 | { |
| 164 | check_fpu (SD_); |
| 165 | if (SizeFGR() == 64) |
| 166 | GPR[RT] = EXTEND32 (WORD64HI (FGR[FS])); |
| 167 | else if ((FS & 0x1) == 0) |
| 168 | GPR[RT] = EXTEND32 (FGR[FS + 1]); |
| 169 | else |
| 170 | { |
| 171 | if (STATE_VERBOSE_P(SD)) |
| 172 | sim_io_eprintf (SD, |
| 173 | "Warning: PC 0x%lx: MFHC1 32-bit use of odd FPR number\n", |
| 174 | (long) CIA); |
| 175 | GPR[RT] = EXTEND32 (0xBADF00D); |
| 176 | } |
| 177 | TRACE_ALU_RESULT (GPR[RT]); |
| 178 | } |
| 179 | |
| 180 | 010001,00111,5.RT,5.FS,00000000000:COP1Sa:32,f::MTHC1 |
| 181 | "mthc1 r<RT>, f<FS>" |
| 182 | *mips32r2: |
| 183 | *mips64r2: |
| 184 | { |
| 185 | check_fpu (SD_); |
| 186 | if (SizeFGR() == 64) |
| 187 | StoreFPR (FS, fmt_uninterpreted_64, SET64HI (GPR[RT]) | VL4_8 (FGR[FS])); |
| 188 | else if ((FS & 0x1) == 0) |
| 189 | StoreFPR (FS + 1, fmt_uninterpreted_32, VL4_8 (GPR[RT])); |
| 190 | else |
| 191 | { |
| 192 | if (STATE_VERBOSE_P(SD)) |
| 193 | sim_io_eprintf (SD, |
| 194 | "Warning: PC 0x%lx: MTHC1 32-bit use of odd FPR number\n", |
| 195 | (long) CIA); |
| 196 | StoreFPR (FS, fmt_uninterpreted_32, 0xDEADC0DE); |
| 197 | } |
| 198 | TRACE_FP_RESULT (GPR[RT]); |
| 199 | } |
| 200 | |
| 201 | |
| 202 | 011111,5.RS,5.RT,5.MSB,5.LSB,000100::32::INS |
| 203 | "ins r<RT>, r<RS>, <LSB>, <MSB-LSB+1>" |
| 204 | *mips32r2: |
| 205 | *mips64r2: |
| 206 | { |
| 207 | TRACE_ALU_INPUT4 (GPR[RT], GPR[RS], LSB, MSB); |
| 208 | if (LSB <= MSB) |
| 209 | GPR[RT] = EXTEND32 (GPR[RT] ^ |
| 210 | ((GPR[RT] ^ (GPR[RS] << LSB)) & MASK32 (MSB, LSB))); |
| 211 | TRACE_ALU_RESULT1 (GPR[RT]); |
| 212 | } |
| 213 | |
| 214 | |
| 215 | 011111,00000,5.RT,5.RD,10000,100000::32::SEB |
| 216 | "seb r<RD>, r<RT>" |
| 217 | *mips32r2: |
| 218 | *mips64r2: |
| 219 | { |
| 220 | TRACE_ALU_INPUT1 (GPR[RT]); |
| 221 | GPR[RD] = EXTEND8 (GPR[RT]); |
| 222 | TRACE_ALU_RESULT1 (GPR[RD]); |
| 223 | } |
| 224 | |
| 225 | 011111,00000,5.RT,5.RD,11000,100000::32::SEH |
| 226 | "seh r<RD>, r<RT>" |
| 227 | *mips32r2: |
| 228 | *mips64r2: |
| 229 | { |
| 230 | TRACE_ALU_INPUT1 (GPR[RT]); |
| 231 | GPR[RD] = EXTEND16 (GPR[RT]); |
| 232 | TRACE_ALU_RESULT1 (GPR[RD]); |
| 233 | } |
| 234 | |
| 235 | |
| 236 | 000001,5.BASE,11111,16.OFFSET::32::SYNCI |
| 237 | "synci <OFFSET>(r<BASE>)" |
| 238 | *mips32r2: |
| 239 | *mips64r2: |
| 240 | { |
| 241 | // sync i-cache - nothing to do currently |
| 242 | } |
| 243 | |
| 244 | |
| 245 | 011111,00000,5.RT,5.RD,00010,100000::32::WSBH |
| 246 | "wsbh r<RD>, r<RT>" |
| 247 | *mips32r2: |
| 248 | *mips64r2: |
| 249 | { |
| 250 | union { unsigned32 w; unsigned16 h[2]; } u; |
| 251 | TRACE_ALU_INPUT1 (GPR[RT]); |
| 252 | u.w = GPR[RT]; |
| 253 | u.h[0] = SWAP_2 (u.h[0]); |
| 254 | u.h[1] = SWAP_2 (u.h[1]); |
| 255 | GPR[RD] = EXTEND32 (u.w); |
| 256 | TRACE_ALU_RESULT1 (GPR[RD]); |
| 257 | } |
| 258 | |
| 259 | |
| 260 | |