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| author | 2015-07-25 20:01:44 -0400 | |
|---|---|---|
| committer | 2015-07-25 20:01:44 -0400 | |
| commit | 6b73e4566be4ba41f473866e9f42dbb8804b923c (patch) | |
| tree | 6b532861336e63ab876a099ea9a6abc328ebf78d /src/core/arm/skyeye_common | |
| parent | Merge pull request #989 from lioncash/extern (diff) | |
| download | yuzu-6b73e4566be4ba41f473866e9f42dbb8804b923c.tar.gz yuzu-6b73e4566be4ba41f473866e9f42dbb8804b923c.tar.xz yuzu-6b73e4566be4ba41f473866e9f42dbb8804b923c.zip | |
dyncom: Move arminit.cpp and armsupp.cpp into skyeye_common
Diffstat (limited to 'src/core/arm/skyeye_common')
| -rw-r--r-- | src/core/arm/skyeye_common/arminit.cpp | 128 | ||||
| -rw-r--r-- | src/core/arm/skyeye_common/armsupp.cpp | 637 |
2 files changed, 765 insertions, 0 deletions
diff --git a/src/core/arm/skyeye_common/arminit.cpp b/src/core/arm/skyeye_common/arminit.cpp new file mode 100644 index 000000000..4f7a48fab --- /dev/null +++ b/src/core/arm/skyeye_common/arminit.cpp | |||
| @@ -0,0 +1,128 @@ | |||
| 1 | /* arminit.c -- ARMulator initialization: ARM6 Instruction Emulator. | ||
| 2 | Copyright (C) 1994 Advanced RISC Machines Ltd. | ||
| 3 | |||
| 4 | This program is free software; you can redistribute it and/or modify | ||
| 5 | it under the terms of the GNU General Public License as published by | ||
| 6 | the Free Software Foundation; either version 2 of the License, or | ||
| 7 | (at your option) any later version. | ||
| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, | ||
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 12 | GNU General Public License for more details. | ||
| 13 | |||
| 14 | You should have received a copy of the GNU General Public License | ||
| 15 | along with this program; if not, write to the Free Software | ||
| 16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | ||
| 17 | |||
| 18 | #include <cstring> | ||
| 19 | #include "core/arm/skyeye_common/armdefs.h" | ||
| 20 | #include "core/arm/skyeye_common/vfp/vfp.h" | ||
| 21 | |||
| 22 | /***************************************************************************\ | ||
| 23 | * Returns a new instantiation of the ARMulator's state * | ||
| 24 | \***************************************************************************/ | ||
| 25 | ARMul_State* ARMul_NewState(ARMul_State* state) | ||
| 26 | { | ||
| 27 | state->Emulate = RUN; | ||
| 28 | state->Mode = USER32MODE; | ||
| 29 | |||
| 30 | state->lateabtSig = HIGH; | ||
| 31 | state->bigendSig = LOW; | ||
| 32 | |||
| 33 | return state; | ||
| 34 | } | ||
| 35 | |||
| 36 | /***************************************************************************\ | ||
| 37 | * Call this routine to set ARMulator to model a certain processor * | ||
| 38 | \***************************************************************************/ | ||
| 39 | |||
| 40 | void ARMul_SelectProcessor(ARMul_State* state, unsigned properties) | ||
| 41 | { | ||
| 42 | state->is_v4 = (properties & (ARM_v4_Prop | ARM_v5_Prop)) != 0; | ||
| 43 | state->is_v5 = (properties & ARM_v5_Prop) != 0; | ||
| 44 | state->is_v5e = (properties & ARM_v5e_Prop) != 0; | ||
| 45 | state->is_v6 = (properties & ARM_v6_Prop) != 0; | ||
| 46 | state->is_v7 = (properties & ARM_v7_Prop) != 0; | ||
| 47 | } | ||
| 48 | |||
| 49 | // Resets certain MPCore CP15 values to their ARM-defined reset values. | ||
| 50 | static void ResetMPCoreCP15Registers(ARMul_State* cpu) | ||
| 51 | { | ||
| 52 | // c0 | ||
| 53 | cpu->CP15[CP15_MAIN_ID] = 0x410FB024; | ||
| 54 | cpu->CP15[CP15_TLB_TYPE] = 0x00000800; | ||
| 55 | cpu->CP15[CP15_PROCESSOR_FEATURE_0] = 0x00000111; | ||
| 56 | cpu->CP15[CP15_PROCESSOR_FEATURE_1] = 0x00000001; | ||
| 57 | cpu->CP15[CP15_DEBUG_FEATURE_0] = 0x00000002; | ||
| 58 | cpu->CP15[CP15_MEMORY_MODEL_FEATURE_0] = 0x01100103; | ||
| 59 | cpu->CP15[CP15_MEMORY_MODEL_FEATURE_1] = 0x10020302; | ||
| 60 | cpu->CP15[CP15_MEMORY_MODEL_FEATURE_2] = 0x01222000; | ||
| 61 | cpu->CP15[CP15_MEMORY_MODEL_FEATURE_3] = 0x00000000; | ||
| 62 | cpu->CP15[CP15_ISA_FEATURE_0] = 0x00100011; | ||
| 63 | cpu->CP15[CP15_ISA_FEATURE_1] = 0x12002111; | ||
| 64 | cpu->CP15[CP15_ISA_FEATURE_2] = 0x11221011; | ||
| 65 | cpu->CP15[CP15_ISA_FEATURE_3] = 0x01102131; | ||
| 66 | cpu->CP15[CP15_ISA_FEATURE_4] = 0x00000141; | ||
| 67 | |||
| 68 | // c1 | ||
| 69 | cpu->CP15[CP15_CONTROL] = 0x00054078; | ||
| 70 | cpu->CP15[CP15_AUXILIARY_CONTROL] = 0x0000000F; | ||
| 71 | cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL] = 0x00000000; | ||
| 72 | |||
| 73 | // c2 | ||
| 74 | cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0] = 0x00000000; | ||
| 75 | cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1] = 0x00000000; | ||
| 76 | cpu->CP15[CP15_TRANSLATION_BASE_CONTROL] = 0x00000000; | ||
| 77 | |||
| 78 | // c3 | ||
| 79 | cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL] = 0x00000000; | ||
| 80 | |||
| 81 | // c7 | ||
| 82 | cpu->CP15[CP15_PHYS_ADDRESS] = 0x00000000; | ||
| 83 | |||
| 84 | // c9 | ||
| 85 | cpu->CP15[CP15_DATA_CACHE_LOCKDOWN] = 0xFFFFFFF0; | ||
| 86 | |||
| 87 | // c10 | ||
| 88 | cpu->CP15[CP15_TLB_LOCKDOWN] = 0x00000000; | ||
| 89 | cpu->CP15[CP15_PRIMARY_REGION_REMAP] = 0x00098AA4; | ||
| 90 | cpu->CP15[CP15_NORMAL_REGION_REMAP] = 0x44E048E0; | ||
| 91 | |||
| 92 | // c13 | ||
| 93 | cpu->CP15[CP15_PID] = 0x00000000; | ||
| 94 | cpu->CP15[CP15_CONTEXT_ID] = 0x00000000; | ||
| 95 | cpu->CP15[CP15_THREAD_UPRW] = 0x00000000; | ||
| 96 | cpu->CP15[CP15_THREAD_URO] = 0x00000000; | ||
| 97 | cpu->CP15[CP15_THREAD_PRW] = 0x00000000; | ||
| 98 | |||
| 99 | // c15 | ||
| 100 | cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL] = 0x00000000; | ||
| 101 | cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS] = 0x00000000; | ||
| 102 | cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS] = 0x00000000; | ||
| 103 | cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE] = 0x00000000; | ||
| 104 | cpu->CP15[CP15_TLB_DEBUG_CONTROL] = 0x00000000; | ||
| 105 | } | ||
| 106 | |||
| 107 | /***************************************************************************\ | ||
| 108 | * Call this routine to set up the initial machine state (or perform a RESET * | ||
| 109 | \***************************************************************************/ | ||
| 110 | void ARMul_Reset(ARMul_State* state) | ||
| 111 | { | ||
| 112 | VFPInit(state); | ||
| 113 | |||
| 114 | state->Reg[15] = 0; | ||
| 115 | state->Cpsr = INTBITS | SVC32MODE; | ||
| 116 | state->Mode = SVC32MODE; | ||
| 117 | state->Bank = SVCBANK; | ||
| 118 | |||
| 119 | ResetMPCoreCP15Registers(state); | ||
| 120 | |||
| 121 | state->NresetSig = HIGH; | ||
| 122 | state->NfiqSig = HIGH; | ||
| 123 | state->NirqSig = HIGH; | ||
| 124 | state->NtransSig = (state->Mode & 3) ? HIGH : LOW; | ||
| 125 | state->abortSig = LOW; | ||
| 126 | |||
| 127 | state->NumInstrs = 0; | ||
| 128 | } | ||
diff --git a/src/core/arm/skyeye_common/armsupp.cpp b/src/core/arm/skyeye_common/armsupp.cpp new file mode 100644 index 000000000..83f7f3e2c --- /dev/null +++ b/src/core/arm/skyeye_common/armsupp.cpp | |||
| @@ -0,0 +1,637 @@ | |||
| 1 | /* armsupp.c -- ARMulator support code: ARM6 Instruction Emulator. | ||
| 2 | Copyright (C) 1994 Advanced RISC Machines Ltd. | ||
| 3 | |||
| 4 | This program is free software; you can redistribute it and/or modify | ||
| 5 | it under the terms of the GNU General Public License as published by | ||
| 6 | the Free Software Foundation; either version 2 of the License, or | ||
| 7 | (at your option) any later version. | ||
| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, | ||
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 12 | GNU General Public License for more details. | ||
| 13 | |||
| 14 | You should have received a copy of the GNU General Public License | ||
| 15 | along with this program; if not, write to the Free Software | ||
| 16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | ||
| 17 | |||
| 18 | #include "common/logging/log.h" | ||
| 19 | |||
| 20 | #include "core/mem_map.h" | ||
| 21 | #include "core/arm/skyeye_common/armdefs.h" | ||
| 22 | #include "core/arm/skyeye_common/arm_regformat.h" | ||
| 23 | |||
| 24 | // Unsigned sum of absolute difference | ||
| 25 | u8 ARMul_UnsignedAbsoluteDifference(u8 left, u8 right) | ||
| 26 | { | ||
| 27 | if (left > right) | ||
| 28 | return left - right; | ||
| 29 | |||
| 30 | return right - left; | ||
| 31 | } | ||
| 32 | |||
| 33 | // Add with carry, indicates if a carry-out or signed overflow occurred. | ||
| 34 | u32 AddWithCarry(u32 left, u32 right, u32 carry_in, bool* carry_out_occurred, bool* overflow_occurred) | ||
| 35 | { | ||
| 36 | u64 unsigned_sum = (u64)left + (u64)right + (u64)carry_in; | ||
| 37 | s64 signed_sum = (s64)(s32)left + (s64)(s32)right + (s64)carry_in; | ||
| 38 | u64 result = (unsigned_sum & 0xFFFFFFFF); | ||
| 39 | |||
| 40 | if (carry_out_occurred) | ||
| 41 | *carry_out_occurred = (result != unsigned_sum); | ||
| 42 | |||
| 43 | if (overflow_occurred) | ||
| 44 | *overflow_occurred = ((s64)(s32)result != signed_sum); | ||
| 45 | |||
| 46 | return (u32)result; | ||
| 47 | } | ||
| 48 | |||
| 49 | // Compute whether an addition of A and B, giving RESULT, overflowed. | ||
| 50 | bool AddOverflow(ARMword a, ARMword b, ARMword result) | ||
| 51 | { | ||
| 52 | return ((NEG(a) && NEG(b) && POS(result)) || | ||
| 53 | (POS(a) && POS(b) && NEG(result))); | ||
| 54 | } | ||
| 55 | |||
| 56 | // Compute whether a subtraction of A and B, giving RESULT, overflowed. | ||
| 57 | bool SubOverflow(ARMword a, ARMword b, ARMword result) | ||
| 58 | { | ||
| 59 | return ((NEG(a) && POS(b) && POS(result)) || | ||
| 60 | (POS(a) && NEG(b) && NEG(result))); | ||
| 61 | } | ||
| 62 | |||
| 63 | // Returns true if the Q flag should be set as a result of overflow. | ||
| 64 | bool ARMul_AddOverflowQ(ARMword a, ARMword b) | ||
| 65 | { | ||
| 66 | u32 result = a + b; | ||
| 67 | if (((result ^ a) & (u32)0x80000000) && ((a ^ b) & (u32)0x80000000) == 0) | ||
| 68 | return true; | ||
| 69 | |||
| 70 | return false; | ||
| 71 | } | ||
| 72 | |||
| 73 | // 8-bit signed saturated addition | ||
| 74 | u8 ARMul_SignedSaturatedAdd8(u8 left, u8 right) | ||
| 75 | { | ||
| 76 | u8 result = left + right; | ||
| 77 | |||
| 78 | if (((result ^ left) & 0x80) && ((left ^ right) & 0x80) == 0) { | ||
| 79 | if (left & 0x80) | ||
| 80 | result = 0x80; | ||
| 81 | else | ||
| 82 | result = 0x7F; | ||
| 83 | } | ||
| 84 | |||
| 85 | return result; | ||
| 86 | } | ||
| 87 | |||
| 88 | // 8-bit signed saturated subtraction | ||
| 89 | u8 ARMul_SignedSaturatedSub8(u8 left, u8 right) | ||
| 90 | { | ||
| 91 | u8 result = left - right; | ||
| 92 | |||
| 93 | if (((result ^ left) & 0x80) && ((left ^ right) & 0x80) != 0) { | ||
| 94 | if (left & 0x80) | ||
| 95 | result = 0x80; | ||
| 96 | else | ||
| 97 | result = 0x7F; | ||
| 98 | } | ||
| 99 | |||
| 100 | return result; | ||
| 101 | } | ||
| 102 | |||
| 103 | // 16-bit signed saturated addition | ||
| 104 | u16 ARMul_SignedSaturatedAdd16(u16 left, u16 right) | ||
| 105 | { | ||
| 106 | u16 result = left + right; | ||
| 107 | |||
| 108 | if (((result ^ left) & 0x8000) && ((left ^ right) & 0x8000) == 0) { | ||
| 109 | if (left & 0x8000) | ||
| 110 | result = 0x8000; | ||
| 111 | else | ||
| 112 | result = 0x7FFF; | ||
| 113 | } | ||
| 114 | |||
| 115 | return result; | ||
| 116 | } | ||
| 117 | |||
| 118 | // 16-bit signed saturated subtraction | ||
| 119 | u16 ARMul_SignedSaturatedSub16(u16 left, u16 right) | ||
| 120 | { | ||
| 121 | u16 result = left - right; | ||
| 122 | |||
| 123 | if (((result ^ left) & 0x8000) && ((left ^ right) & 0x8000) != 0) { | ||
| 124 | if (left & 0x8000) | ||
| 125 | result = 0x8000; | ||
| 126 | else | ||
| 127 | result = 0x7FFF; | ||
| 128 | } | ||
| 129 | |||
| 130 | return result; | ||
| 131 | } | ||
| 132 | |||
| 133 | // 8-bit unsigned saturated addition | ||
| 134 | u8 ARMul_UnsignedSaturatedAdd8(u8 left, u8 right) | ||
| 135 | { | ||
| 136 | u8 result = left + right; | ||
| 137 | |||
| 138 | if (result < left) | ||
| 139 | result = 0xFF; | ||
| 140 | |||
| 141 | return result; | ||
| 142 | } | ||
| 143 | |||
| 144 | // 16-bit unsigned saturated addition | ||
| 145 | u16 ARMul_UnsignedSaturatedAdd16(u16 left, u16 right) | ||
| 146 | { | ||
| 147 | u16 result = left + right; | ||
| 148 | |||
| 149 | if (result < left) | ||
| 150 | result = 0xFFFF; | ||
| 151 | |||
| 152 | return result; | ||
| 153 | } | ||
| 154 | |||
| 155 | // 8-bit unsigned saturated subtraction | ||
| 156 | u8 ARMul_UnsignedSaturatedSub8(u8 left, u8 right) | ||
| 157 | { | ||
| 158 | if (left <= right) | ||
| 159 | return 0; | ||
| 160 | |||
| 161 | return left - right; | ||
| 162 | } | ||
| 163 | |||
| 164 | // 16-bit unsigned saturated subtraction | ||
| 165 | u16 ARMul_UnsignedSaturatedSub16(u16 left, u16 right) | ||
| 166 | { | ||
| 167 | if (left <= right) | ||
| 168 | return 0; | ||
| 169 | |||
| 170 | return left - right; | ||
| 171 | } | ||
| 172 | |||
| 173 | // Signed saturation. | ||
| 174 | u32 ARMul_SignedSatQ(s32 value, u8 shift, bool* saturation_occurred) | ||
| 175 | { | ||
| 176 | const u32 max = (1 << shift) - 1; | ||
| 177 | const s32 top = (value >> shift); | ||
| 178 | |||
| 179 | if (top > 0) { | ||
| 180 | *saturation_occurred = true; | ||
| 181 | return max; | ||
| 182 | } | ||
| 183 | else if (top < -1) { | ||
| 184 | *saturation_occurred = true; | ||
| 185 | return ~max; | ||
| 186 | } | ||
| 187 | |||
| 188 | *saturation_occurred = false; | ||
| 189 | return (u32)value; | ||
| 190 | } | ||
| 191 | |||
| 192 | // Unsigned saturation | ||
| 193 | u32 ARMul_UnsignedSatQ(s32 value, u8 shift, bool* saturation_occurred) | ||
| 194 | { | ||
| 195 | const u32 max = (1 << shift) - 1; | ||
| 196 | |||
| 197 | if (value < 0) { | ||
| 198 | *saturation_occurred = true; | ||
| 199 | return 0; | ||
| 200 | } else if ((u32)value > max) { | ||
| 201 | *saturation_occurred = true; | ||
| 202 | return max; | ||
| 203 | } | ||
| 204 | |||
| 205 | *saturation_occurred = false; | ||
| 206 | return (u32)value; | ||
| 207 | } | ||
| 208 | |||
| 209 | // Whether or not the given CPU is in big endian mode (E bit is set) | ||
| 210 | bool InBigEndianMode(ARMul_State* cpu) | ||
| 211 | { | ||
| 212 | return (cpu->Cpsr & (1 << 9)) != 0; | ||
| 213 | } | ||
| 214 | |||
| 215 | // Whether or not the given CPU is in a mode other than user mode. | ||
| 216 | bool InAPrivilegedMode(ARMul_State* cpu) | ||
| 217 | { | ||
| 218 | return (cpu->Mode != USER32MODE); | ||
| 219 | } | ||
| 220 | |||
| 221 | // Reads from the CP15 registers. Used with implementation of the MRC instruction. | ||
| 222 | // Note that since the 3DS does not have the hypervisor extensions, these registers | ||
| 223 | // are not implemented. | ||
| 224 | u32 ReadCP15Register(ARMul_State* cpu, u32 crn, u32 opcode_1, u32 crm, u32 opcode_2) | ||
| 225 | { | ||
| 226 | // Unprivileged registers | ||
| 227 | if (crn == 13 && opcode_1 == 0 && crm == 0) | ||
| 228 | { | ||
| 229 | if (opcode_2 == 2) | ||
| 230 | return cpu->CP15[CP15_THREAD_UPRW]; | ||
| 231 | |||
| 232 | if (opcode_2 == 3) | ||
| 233 | return cpu->CP15[CP15_THREAD_URO]; | ||
| 234 | } | ||
| 235 | |||
| 236 | if (InAPrivilegedMode(cpu)) | ||
| 237 | { | ||
| 238 | if (crn == 0 && opcode_1 == 0) | ||
| 239 | { | ||
| 240 | if (crm == 0) | ||
| 241 | { | ||
| 242 | if (opcode_2 == 0) | ||
| 243 | return cpu->CP15[CP15_MAIN_ID]; | ||
| 244 | |||
| 245 | if (opcode_2 == 1) | ||
| 246 | return cpu->CP15[CP15_CACHE_TYPE]; | ||
| 247 | |||
| 248 | if (opcode_2 == 3) | ||
| 249 | return cpu->CP15[CP15_TLB_TYPE]; | ||
| 250 | |||
| 251 | if (opcode_2 == 5) | ||
| 252 | return cpu->CP15[CP15_CPU_ID]; | ||
| 253 | } | ||
| 254 | else if (crm == 1) | ||
| 255 | { | ||
| 256 | if (opcode_2 == 0) | ||
| 257 | return cpu->CP15[CP15_PROCESSOR_FEATURE_0]; | ||
| 258 | |||
| 259 | if (opcode_2 == 1) | ||
| 260 | return cpu->CP15[CP15_PROCESSOR_FEATURE_1]; | ||
| 261 | |||
| 262 | if (opcode_2 == 2) | ||
| 263 | return cpu->CP15[CP15_DEBUG_FEATURE_0]; | ||
| 264 | |||
| 265 | if (opcode_2 == 4) | ||
| 266 | return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_0]; | ||
| 267 | |||
| 268 | if (opcode_2 == 5) | ||
| 269 | return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_1]; | ||
| 270 | |||
| 271 | if (opcode_2 == 6) | ||
| 272 | return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_2]; | ||
| 273 | |||
| 274 | if (opcode_2 == 7) | ||
| 275 | return cpu->CP15[CP15_MEMORY_MODEL_FEATURE_3]; | ||
| 276 | } | ||
| 277 | else if (crm == 2) | ||
| 278 | { | ||
| 279 | if (opcode_2 == 0) | ||
| 280 | return cpu->CP15[CP15_ISA_FEATURE_0]; | ||
| 281 | |||
| 282 | if (opcode_2 == 1) | ||
| 283 | return cpu->CP15[CP15_ISA_FEATURE_1]; | ||
| 284 | |||
| 285 | if (opcode_2 == 2) | ||
| 286 | return cpu->CP15[CP15_ISA_FEATURE_2]; | ||
| 287 | |||
| 288 | if (opcode_2 == 3) | ||
| 289 | return cpu->CP15[CP15_ISA_FEATURE_3]; | ||
| 290 | |||
| 291 | if (opcode_2 == 4) | ||
| 292 | return cpu->CP15[CP15_ISA_FEATURE_4]; | ||
| 293 | } | ||
| 294 | } | ||
| 295 | |||
| 296 | if (crn == 1 && opcode_1 == 0 && crm == 0) | ||
| 297 | { | ||
| 298 | if (opcode_2 == 0) | ||
| 299 | return cpu->CP15[CP15_CONTROL]; | ||
| 300 | |||
| 301 | if (opcode_2 == 1) | ||
| 302 | return cpu->CP15[CP15_AUXILIARY_CONTROL]; | ||
| 303 | |||
| 304 | if (opcode_2 == 2) | ||
| 305 | return cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL]; | ||
| 306 | } | ||
| 307 | |||
| 308 | if (crn == 2 && opcode_1 == 0 && crm == 0) | ||
| 309 | { | ||
| 310 | if (opcode_2 == 0) | ||
| 311 | return cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0]; | ||
| 312 | |||
| 313 | if (opcode_2 == 1) | ||
| 314 | return cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1]; | ||
| 315 | |||
| 316 | if (opcode_2 == 2) | ||
| 317 | return cpu->CP15[CP15_TRANSLATION_BASE_CONTROL]; | ||
| 318 | } | ||
| 319 | |||
| 320 | if (crn == 3 && opcode_1 == 0 && crm == 0 && opcode_2 == 0) | ||
| 321 | return cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL]; | ||
| 322 | |||
| 323 | if (crn == 5 && opcode_1 == 0 && crm == 0) | ||
| 324 | { | ||
| 325 | if (opcode_2 == 0) | ||
| 326 | return cpu->CP15[CP15_FAULT_STATUS]; | ||
| 327 | |||
| 328 | if (opcode_2 == 1) | ||
| 329 | return cpu->CP15[CP15_INSTR_FAULT_STATUS]; | ||
| 330 | } | ||
| 331 | |||
| 332 | if (crn == 6 && opcode_1 == 0 && crm == 0) | ||
| 333 | { | ||
| 334 | if (opcode_2 == 0) | ||
| 335 | return cpu->CP15[CP15_FAULT_ADDRESS]; | ||
| 336 | |||
| 337 | if (opcode_2 == 1) | ||
| 338 | return cpu->CP15[CP15_WFAR]; | ||
| 339 | } | ||
| 340 | |||
| 341 | if (crn == 7 && opcode_1 == 0 && crm == 4 && opcode_2 == 0) | ||
| 342 | return cpu->CP15[CP15_PHYS_ADDRESS]; | ||
| 343 | |||
| 344 | if (crn == 9 && opcode_1 == 0 && crm == 0 && opcode_2 == 0) | ||
| 345 | return cpu->CP15[CP15_DATA_CACHE_LOCKDOWN]; | ||
| 346 | |||
| 347 | if (crn == 10 && opcode_1 == 0) | ||
| 348 | { | ||
| 349 | if (crm == 0 && opcode_2 == 0) | ||
| 350 | return cpu->CP15[CP15_TLB_LOCKDOWN]; | ||
| 351 | |||
| 352 | if (crm == 2) | ||
| 353 | { | ||
| 354 | if (opcode_2 == 0) | ||
| 355 | return cpu->CP15[CP15_PRIMARY_REGION_REMAP]; | ||
| 356 | |||
| 357 | if (opcode_2 == 1) | ||
| 358 | return cpu->CP15[CP15_NORMAL_REGION_REMAP]; | ||
| 359 | } | ||
| 360 | } | ||
| 361 | |||
| 362 | if (crn == 13 && crm == 0) | ||
| 363 | { | ||
| 364 | if (opcode_2 == 0) | ||
| 365 | return cpu->CP15[CP15_PID]; | ||
| 366 | |||
| 367 | if (opcode_2 == 1) | ||
| 368 | return cpu->CP15[CP15_CONTEXT_ID]; | ||
| 369 | |||
| 370 | if (opcode_2 == 4) | ||
| 371 | return cpu->CP15[CP15_THREAD_PRW]; | ||
| 372 | } | ||
| 373 | |||
| 374 | if (crn == 15) | ||
| 375 | { | ||
| 376 | if (opcode_1 == 0 && crm == 12) | ||
| 377 | { | ||
| 378 | if (opcode_2 == 0) | ||
| 379 | return cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL]; | ||
| 380 | |||
| 381 | if (opcode_2 == 1) | ||
| 382 | return cpu->CP15[CP15_CYCLE_COUNTER]; | ||
| 383 | |||
| 384 | if (opcode_2 == 2) | ||
| 385 | return cpu->CP15[CP15_COUNT_0]; | ||
| 386 | |||
| 387 | if (opcode_2 == 3) | ||
| 388 | return cpu->CP15[CP15_COUNT_1]; | ||
| 389 | } | ||
| 390 | |||
| 391 | if (opcode_1 == 5 && opcode_2 == 2) | ||
| 392 | { | ||
| 393 | if (crm == 5) | ||
| 394 | return cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS]; | ||
| 395 | |||
| 396 | if (crm == 6) | ||
| 397 | return cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS]; | ||
| 398 | |||
| 399 | if (crm == 7) | ||
| 400 | return cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE]; | ||
| 401 | } | ||
| 402 | |||
| 403 | if (opcode_1 == 7 && crm == 1 && opcode_2 == 0) | ||
| 404 | return cpu->CP15[CP15_TLB_DEBUG_CONTROL]; | ||
| 405 | } | ||
| 406 | } | ||
| 407 | |||
| 408 | LOG_ERROR(Core_ARM11, "MRC CRn=%u, CRm=%u, OP1=%u OP2=%u is not implemented. Returning zero.", crn, crm, opcode_1, opcode_2); | ||
| 409 | return 0; | ||
| 410 | } | ||
| 411 | |||
| 412 | // Write to the CP15 registers. Used with implementation of the MCR instruction. | ||
| 413 | // Note that since the 3DS does not have the hypervisor extensions, these registers | ||
| 414 | // are not implemented. | ||
| 415 | void WriteCP15Register(ARMul_State* cpu, u32 value, u32 crn, u32 opcode_1, u32 crm, u32 opcode_2) | ||
| 416 | { | ||
| 417 | if (InAPrivilegedMode(cpu)) | ||
| 418 | { | ||
| 419 | if (crn == 1 && opcode_1 == 0 && crm == 0) | ||
| 420 | { | ||
| 421 | if (opcode_2 == 0) | ||
| 422 | cpu->CP15[CP15_CONTROL] = value; | ||
| 423 | else if (opcode_2 == 1) | ||
| 424 | cpu->CP15[CP15_AUXILIARY_CONTROL] = value; | ||
| 425 | else if (opcode_2 == 2) | ||
| 426 | cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL] = value; | ||
| 427 | } | ||
| 428 | else if (crn == 2 && opcode_1 == 0 && crm == 0) | ||
| 429 | { | ||
| 430 | if (opcode_2 == 0) | ||
| 431 | cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0] = value; | ||
| 432 | else if (opcode_2 == 1) | ||
| 433 | cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1] = value; | ||
| 434 | else if (opcode_2 == 2) | ||
| 435 | cpu->CP15[CP15_TRANSLATION_BASE_CONTROL] = value; | ||
| 436 | } | ||
| 437 | else if (crn == 3 && opcode_1 == 0 && crm == 0 && opcode_2 == 0) | ||
| 438 | { | ||
| 439 | cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL] = value; | ||
| 440 | } | ||
| 441 | else if (crn == 5 && opcode_1 == 0 && crm == 0) | ||
| 442 | { | ||
| 443 | if (opcode_2 == 0) | ||
| 444 | cpu->CP15[CP15_FAULT_STATUS] = value; | ||
| 445 | else if (opcode_2 == 1) | ||
| 446 | cpu->CP15[CP15_INSTR_FAULT_STATUS] = value; | ||
| 447 | } | ||
| 448 | else if (crn == 6 && opcode_1 == 0 && crm == 0) | ||
| 449 | { | ||
| 450 | if (opcode_2 == 0) | ||
| 451 | cpu->CP15[CP15_FAULT_ADDRESS] = value; | ||
| 452 | else if (opcode_2 == 1) | ||
| 453 | cpu->CP15[CP15_WFAR] = value; | ||
| 454 | } | ||
| 455 | else if (crn == 7 && opcode_1 == 0) | ||
| 456 | { | ||
| 457 | if (crm == 0 && opcode_2 == 4) | ||
| 458 | { | ||
| 459 | cpu->CP15[CP15_WAIT_FOR_INTERRUPT] = value; | ||
| 460 | } | ||
| 461 | else if (crm == 4 && opcode_2 == 0) | ||
| 462 | { | ||
| 463 | // NOTE: Not entirely accurate. This should do permission checks. | ||
| 464 | cpu->CP15[CP15_PHYS_ADDRESS] = Memory::VirtualToPhysicalAddress(value); | ||
| 465 | } | ||
| 466 | else if (crm == 5) | ||
| 467 | { | ||
| 468 | if (opcode_2 == 0) | ||
| 469 | cpu->CP15[CP15_INVALIDATE_INSTR_CACHE] = value; | ||
| 470 | else if (opcode_2 == 1) | ||
| 471 | cpu->CP15[CP15_INVALIDATE_INSTR_CACHE_USING_MVA] = value; | ||
| 472 | else if (opcode_2 == 2) | ||
| 473 | cpu->CP15[CP15_INVALIDATE_INSTR_CACHE_USING_INDEX] = value; | ||
| 474 | else if (opcode_2 == 6) | ||
| 475 | cpu->CP15[CP15_FLUSH_BRANCH_TARGET_CACHE] = value; | ||
| 476 | else if (opcode_2 == 7) | ||
| 477 | cpu->CP15[CP15_FLUSH_BRANCH_TARGET_CACHE_ENTRY] = value; | ||
| 478 | } | ||
| 479 | else if (crm == 6) | ||
| 480 | { | ||
| 481 | if (opcode_2 == 0) | ||
| 482 | cpu->CP15[CP15_INVALIDATE_DATA_CACHE] = value; | ||
| 483 | else if (opcode_2 == 1) | ||
| 484 | cpu->CP15[CP15_INVALIDATE_DATA_CACHE_LINE_USING_MVA] = value; | ||
| 485 | else if (opcode_2 == 2) | ||
| 486 | cpu->CP15[CP15_INVALIDATE_DATA_CACHE_LINE_USING_INDEX] = value; | ||
| 487 | } | ||
| 488 | else if (crm == 7 && opcode_2 == 0) | ||
| 489 | { | ||
| 490 | cpu->CP15[CP15_INVALIDATE_DATA_AND_INSTR_CACHE] = value; | ||
| 491 | } | ||
| 492 | else if (crm == 10) | ||
| 493 | { | ||
| 494 | if (opcode_2 == 0) | ||
| 495 | cpu->CP15[CP15_CLEAN_DATA_CACHE] = value; | ||
| 496 | else if (opcode_2 == 1) | ||
| 497 | cpu->CP15[CP15_CLEAN_DATA_CACHE_LINE_USING_MVA] = value; | ||
| 498 | else if (opcode_2 == 2) | ||
| 499 | cpu->CP15[CP15_CLEAN_DATA_CACHE_LINE_USING_INDEX] = value; | ||
| 500 | } | ||
| 501 | else if (crm == 14) | ||
| 502 | { | ||
| 503 | if (opcode_2 == 0) | ||
| 504 | cpu->CP15[CP15_CLEAN_AND_INVALIDATE_DATA_CACHE] = value; | ||
| 505 | else if (opcode_2 == 1) | ||
| 506 | cpu->CP15[CP15_CLEAN_AND_INVALIDATE_DATA_CACHE_LINE_USING_MVA] = value; | ||
| 507 | else if (opcode_2 == 2) | ||
| 508 | cpu->CP15[CP15_CLEAN_AND_INVALIDATE_DATA_CACHE_LINE_USING_INDEX] = value; | ||
| 509 | } | ||
| 510 | } | ||
| 511 | else if (crn == 8 && opcode_1 == 0) | ||
| 512 | { | ||
| 513 | LOG_WARNING(Core_ARM11, "TLB operations not fully implemented."); | ||
| 514 | |||
| 515 | if (crm == 5) | ||
| 516 | { | ||
| 517 | if (opcode_2 == 0) | ||
| 518 | cpu->CP15[CP15_INVALIDATE_ITLB] = value; | ||
| 519 | else if (opcode_2 == 1) | ||
| 520 | cpu->CP15[CP15_INVALIDATE_ITLB_SINGLE_ENTRY] = value; | ||
| 521 | else if (opcode_2 == 2) | ||
| 522 | cpu->CP15[CP15_INVALIDATE_ITLB_ENTRY_ON_ASID_MATCH] = value; | ||
| 523 | else if (opcode_2 == 3) | ||
| 524 | cpu->CP15[CP15_INVALIDATE_ITLB_ENTRY_ON_MVA] = value; | ||
| 525 | } | ||
| 526 | else if (crm == 6) | ||
| 527 | { | ||
| 528 | if (opcode_2 == 0) | ||
| 529 | cpu->CP15[CP15_INVALIDATE_DTLB] = value; | ||
| 530 | else if (opcode_2 == 1) | ||
| 531 | cpu->CP15[CP15_INVALIDATE_DTLB_SINGLE_ENTRY] = value; | ||
| 532 | else if (opcode_2 == 2) | ||
| 533 | cpu->CP15[CP15_INVALIDATE_DTLB_ENTRY_ON_ASID_MATCH] = value; | ||
| 534 | else if (opcode_2 == 3) | ||
| 535 | cpu->CP15[CP15_INVALIDATE_DTLB_ENTRY_ON_MVA] = value; | ||
| 536 | } | ||
| 537 | else if (crm == 7) | ||
| 538 | { | ||
| 539 | if (opcode_2 == 0) | ||
| 540 | cpu->CP15[CP15_INVALIDATE_UTLB] = value; | ||
| 541 | else if (opcode_2 == 1) | ||
| 542 | cpu->CP15[CP15_INVALIDATE_UTLB_SINGLE_ENTRY] = value; | ||
| 543 | else if (opcode_2 == 2) | ||
| 544 | cpu->CP15[CP15_INVALIDATE_UTLB_ENTRY_ON_ASID_MATCH] = value; | ||
| 545 | else if (opcode_2 == 3) | ||
| 546 | cpu->CP15[CP15_INVALIDATE_UTLB_ENTRY_ON_MVA] = value; | ||
| 547 | } | ||
| 548 | } | ||
| 549 | else if (crn == 9 && opcode_1 == 0 && crm == 0 && opcode_2 == 0) | ||
| 550 | { | ||
| 551 | cpu->CP15[CP15_DATA_CACHE_LOCKDOWN] = value; | ||
| 552 | } | ||
| 553 | else if (crn == 10 && opcode_1 == 0) | ||
| 554 | { | ||
| 555 | if (crm == 0 && opcode_2 == 0) | ||
| 556 | { | ||
| 557 | cpu->CP15[CP15_TLB_LOCKDOWN] = value; | ||
| 558 | } | ||
| 559 | else if (crm == 2) | ||
| 560 | { | ||
| 561 | if (opcode_2 == 0) | ||
| 562 | cpu->CP15[CP15_PRIMARY_REGION_REMAP] = value; | ||
| 563 | else if (opcode_2 == 1) | ||
| 564 | cpu->CP15[CP15_NORMAL_REGION_REMAP] = value; | ||
| 565 | } | ||
| 566 | } | ||
| 567 | else if (crn == 13 && opcode_1 == 0 && crm == 0) | ||
| 568 | { | ||
| 569 | if (opcode_2 == 0) | ||
| 570 | cpu->CP15[CP15_PID] = value; | ||
| 571 | else if (opcode_2 == 1) | ||
| 572 | cpu->CP15[CP15_CONTEXT_ID] = value; | ||
| 573 | else if (opcode_2 == 3) | ||
| 574 | cpu->CP15[CP15_THREAD_URO] = value; | ||
| 575 | else if (opcode_2 == 4) | ||
| 576 | cpu->CP15[CP15_THREAD_PRW] = value; | ||
| 577 | } | ||
| 578 | else if (crn == 15) | ||
| 579 | { | ||
| 580 | if (opcode_1 == 0 && crm == 12) | ||
| 581 | { | ||
| 582 | if (opcode_2 == 0) | ||
| 583 | cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL] = value; | ||
| 584 | else if (opcode_2 == 1) | ||
| 585 | cpu->CP15[CP15_CYCLE_COUNTER] = value; | ||
| 586 | else if (opcode_2 == 2) | ||
| 587 | cpu->CP15[CP15_COUNT_0] = value; | ||
| 588 | else if (opcode_2 == 3) | ||
| 589 | cpu->CP15[CP15_COUNT_1] = value; | ||
| 590 | } | ||
| 591 | else if (opcode_1 == 5) | ||
| 592 | { | ||
| 593 | if (crm == 4) | ||
| 594 | { | ||
| 595 | if (opcode_2 == 2) | ||
| 596 | cpu->CP15[CP15_READ_MAIN_TLB_LOCKDOWN_ENTRY] = value; | ||
| 597 | else if (opcode_2 == 4) | ||
| 598 | cpu->CP15[CP15_WRITE_MAIN_TLB_LOCKDOWN_ENTRY] = value; | ||
| 599 | } | ||
| 600 | else if (crm == 5 && opcode_2 == 2) | ||
| 601 | { | ||
| 602 | cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS] = value; | ||
| 603 | } | ||
| 604 | else if (crm == 6 && opcode_2 == 2) | ||
| 605 | { | ||
| 606 | cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS] = value; | ||
| 607 | } | ||
| 608 | else if (crm == 7 && opcode_2 == 2) | ||
| 609 | { | ||
| 610 | cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE] = value; | ||
| 611 | } | ||
| 612 | } | ||
| 613 | else if (opcode_1 == 7 && crm == 1 && opcode_2 == 0) | ||
| 614 | { | ||
| 615 | cpu->CP15[CP15_TLB_DEBUG_CONTROL] = value; | ||
| 616 | } | ||
| 617 | } | ||
| 618 | } | ||
| 619 | |||
| 620 | // Unprivileged registers | ||
| 621 | if (crn == 7 && opcode_1 == 0 && crm == 5 && opcode_2 == 4) | ||
| 622 | { | ||
| 623 | cpu->CP15[CP15_FLUSH_PREFETCH_BUFFER] = value; | ||
| 624 | } | ||
| 625 | else if (crn == 7 && opcode_1 == 0 && crm == 10) | ||
| 626 | { | ||
| 627 | if (opcode_2 == 4) | ||
| 628 | cpu->CP15[CP15_DATA_SYNC_BARRIER] = value; | ||
| 629 | else if (opcode_2 == 5) | ||
| 630 | cpu->CP15[CP15_DATA_MEMORY_BARRIER] = value; | ||
| 631 | |||
| 632 | } | ||
| 633 | else if (crn == 13 && opcode_1 == 0 && crm == 0 && opcode_2 == 2) | ||
| 634 | { | ||
| 635 | cpu->CP15[CP15_THREAD_UPRW] = value; | ||
| 636 | } | ||
| 637 | } | ||