ce9782f40a
ERETNC is identical to ERET except that an ERETNC will not clear the LLbit that is set by execution of an LL instruction, and thus when placed between an LL and SC sequence, will never cause the SC to fail. Presence of ERETNC is denoted by the Config5.LLB. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
852 lines
33 KiB
C
852 lines
33 KiB
C
/*
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* MIPS emulation for qemu: CPU initialisation routines.
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*
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* Copyright (c) 2004-2005 Jocelyn Mayer
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* Copyright (c) 2007 Herve Poussineau
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* CPU / CPU family specific config register values. */
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/* Have config1, uncached coherency */
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#define MIPS_CONFIG0 \
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((1U << CP0C0_M) | (0x2 << CP0C0_K0))
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/* Have config2, no coprocessor2 attached, no MDMX support attached,
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no performance counters, watch registers present,
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no code compression, EJTAG present, no FPU */
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#define MIPS_CONFIG1 \
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((1U << CP0C1_M) | \
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(0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) | \
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(1 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) | \
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(0 << CP0C1_FP))
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/* Have config3, no tertiary/secondary caches implemented */
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#define MIPS_CONFIG2 \
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((1U << CP0C2_M))
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/* No config4, no DSP ASE, no large physaddr (PABITS),
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no external interrupt controller, no vectored interrupts,
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no 1kb pages, no SmartMIPS ASE, no trace logic */
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#define MIPS_CONFIG3 \
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((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) | \
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(0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) | \
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(0 << CP0C3_SM) | (0 << CP0C3_TL))
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#define MIPS_CONFIG4 \
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((0 << CP0C4_M))
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#define MIPS_CONFIG5 \
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((0 << CP0C5_M))
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/* MMU types, the first four entries have the same layout as the
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CP0C0_MT field. */
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enum mips_mmu_types {
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MMU_TYPE_NONE,
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MMU_TYPE_R4000,
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MMU_TYPE_RESERVED,
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MMU_TYPE_FMT,
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MMU_TYPE_R3000,
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MMU_TYPE_R6000,
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MMU_TYPE_R8000
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};
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struct mips_def_t {
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const char *name;
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int32_t CP0_PRid;
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int32_t CP0_Config0;
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int32_t CP0_Config1;
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int32_t CP0_Config2;
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int32_t CP0_Config3;
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int32_t CP0_Config4;
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int32_t CP0_Config4_rw_bitmask;
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int32_t CP0_Config5;
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int32_t CP0_Config5_rw_bitmask;
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int32_t CP0_Config6;
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int32_t CP0_Config7;
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target_ulong CP0_LLAddr_rw_bitmask;
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int CP0_LLAddr_shift;
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int32_t SYNCI_Step;
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int32_t CCRes;
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int32_t CP0_Status_rw_bitmask;
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int32_t CP0_TCStatus_rw_bitmask;
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int32_t CP0_SRSCtl;
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int32_t CP1_fcr0;
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int32_t MSAIR;
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int32_t SEGBITS;
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int32_t PABITS;
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int32_t CP0_SRSConf0_rw_bitmask;
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int32_t CP0_SRSConf0;
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int32_t CP0_SRSConf1_rw_bitmask;
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int32_t CP0_SRSConf1;
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int32_t CP0_SRSConf2_rw_bitmask;
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int32_t CP0_SRSConf2;
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int32_t CP0_SRSConf3_rw_bitmask;
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int32_t CP0_SRSConf3;
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int32_t CP0_SRSConf4_rw_bitmask;
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int32_t CP0_SRSConf4;
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int32_t CP0_PageGrain_rw_bitmask;
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int32_t CP0_PageGrain;
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int insn_flags;
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enum mips_mmu_types mmu_type;
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};
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/*****************************************************************************/
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/* MIPS CPU definitions */
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static const mips_def_t mips_defs[] =
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{
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{
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.name = "4Kc",
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.CP0_PRid = 0x00018000,
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.CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(0 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3,
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x1278FF17,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "4Km",
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.CP0_PRid = 0x00018300,
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/* Config1 implemented, fixed mapping MMU,
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no virtual icache, uncached coherency. */
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.CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3,
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x1258FF17,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32 | ASE_MIPS16,
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.mmu_type = MMU_TYPE_FMT,
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},
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{
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.name = "4KEcR1",
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.CP0_PRid = 0x00018400,
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.CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(0 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3,
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x1278FF17,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "4KEmR1",
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.CP0_PRid = 0x00018500,
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.CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3,
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x1258FF17,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32 | ASE_MIPS16,
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.mmu_type = MMU_TYPE_FMT,
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},
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{
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.name = "4KEc",
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.CP0_PRid = 0x00019000,
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.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
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(MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(0 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x1278FF17,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32R2,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "4KEm",
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.CP0_PRid = 0x00019100,
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.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
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(MMU_TYPE_FMT << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3,
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x1258FF17,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
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.mmu_type = MMU_TYPE_FMT,
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},
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{
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.name = "24Kc",
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.CP0_PRid = 0x00019300,
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.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
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(MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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/* No DSP implemented. */
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.CP0_Status_rw_bitmask = 0x1278FF1F,
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "24Kf",
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.CP0_PRid = 0x00019300,
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.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
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(MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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/* No DSP implemented. */
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.CP0_Status_rw_bitmask = 0x3678FF1F,
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.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
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(1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "34Kf",
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.CP0_PRid = 0x00019500,
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.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
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(MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_VInt) | (1 << CP0C3_MT) |
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(1 << CP0C3_DSPP),
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 0,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x3778FF1F,
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.CP0_TCStatus_rw_bitmask = (0 << CP0TCSt_TCU3) | (0 << CP0TCSt_TCU2) |
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(1 << CP0TCSt_TCU1) | (1 << CP0TCSt_TCU0) |
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(0 << CP0TCSt_TMX) | (1 << CP0TCSt_DT) |
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(1 << CP0TCSt_DA) | (1 << CP0TCSt_A) |
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(0x3 << CP0TCSt_TKSU) | (1 << CP0TCSt_IXMT) |
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(0xff << CP0TCSt_TASID),
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.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
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(1 << FCR0_D) | (1 << FCR0_S) | (0x95 << FCR0_PRID),
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.CP0_SRSCtl = (0xf << CP0SRSCtl_HSS),
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.CP0_SRSConf0_rw_bitmask = 0x3fffffff,
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.CP0_SRSConf0 = (1U << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) |
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(0x3fe << CP0SRSC0_SRS2) | (0x3fe << CP0SRSC0_SRS1),
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.CP0_SRSConf1_rw_bitmask = 0x3fffffff,
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.CP0_SRSConf1 = (1U << CP0SRSC1_M) | (0x3fe << CP0SRSC1_SRS6) |
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(0x3fe << CP0SRSC1_SRS5) | (0x3fe << CP0SRSC1_SRS4),
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.CP0_SRSConf2_rw_bitmask = 0x3fffffff,
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.CP0_SRSConf2 = (1U << CP0SRSC2_M) | (0x3fe << CP0SRSC2_SRS9) |
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(0x3fe << CP0SRSC2_SRS8) | (0x3fe << CP0SRSC2_SRS7),
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.CP0_SRSConf3_rw_bitmask = 0x3fffffff,
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.CP0_SRSConf3 = (1U << CP0SRSC3_M) | (0x3fe << CP0SRSC3_SRS12) |
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(0x3fe << CP0SRSC3_SRS11) | (0x3fe << CP0SRSC3_SRS10),
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.CP0_SRSConf4_rw_bitmask = 0x3fffffff,
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.CP0_SRSConf4 = (0x3fe << CP0SRSC4_SRS15) |
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(0x3fe << CP0SRSC4_SRS14) | (0x3fe << CP0SRSC4_SRS13),
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_MT,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "74Kf",
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.CP0_PRid = 0x00019700,
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.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
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(MMU_TYPE_R4000 << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
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(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
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(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
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(1 << CP0C1_CA),
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.CP0_Config2 = MIPS_CONFIG2,
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.CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_DSP2P) | (1 << CP0C3_DSPP) |
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(1 << CP0C3_VInt),
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.CP0_LLAddr_rw_bitmask = 0,
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.CP0_LLAddr_shift = 4,
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.SYNCI_Step = 32,
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.CCRes = 2,
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.CP0_Status_rw_bitmask = 0x3778FF1F,
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.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
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(1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
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.SEGBITS = 32,
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.PABITS = 32,
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.insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_DSPR2,
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.mmu_type = MMU_TYPE_R4000,
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},
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{
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.name = "M14K",
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.CP0_PRid = 0x00019b00,
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/* Config1 implemented, fixed mapping MMU,
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no virtual icache, uncached coherency. */
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.CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_KU) | (0x2 << CP0C0_K23) |
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(0x1 << CP0C0_AR) | (MMU_TYPE_FMT << CP0C0_MT),
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.CP0_Config1 = MIPS_CONFIG1,
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3 | (0x2 << CP0C3_ISA) | (1 << CP0C3_VInt),
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x1258FF17,
|
|
.SEGBITS = 32,
|
|
.PABITS = 32,
|
|
.insn_flags = CPU_MIPS32R2 | ASE_MICROMIPS,
|
|
.mmu_type = MMU_TYPE_FMT,
|
|
},
|
|
{
|
|
.name = "M14Kc",
|
|
/* This is the TLB-based MMU core. */
|
|
.CP0_PRid = 0x00019c00,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
|
|
(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
|
|
(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3 | (0x2 << CP0C3_ISA) | (0 << CP0C3_VInt),
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x1278FF17,
|
|
.SEGBITS = 32,
|
|
.PABITS = 32,
|
|
.insn_flags = CPU_MIPS32R2 | ASE_MICROMIPS,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
/* A generic CPU providing MIPS32 Release 5 features.
|
|
FIXME: Eventually this should be replaced by a real CPU model. */
|
|
.name = "mips32r5-generic",
|
|
.CP0_PRid = 0x00019700,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
|
|
(0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
|
|
(0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
|
|
(1 << CP0C1_CA),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3 | (1U << CP0C3_M) | (1 << CP0C3_MSAP),
|
|
.CP0_Config4 = MIPS_CONFIG4 | (1U << CP0C4_M),
|
|
.CP0_Config4_rw_bitmask = 0,
|
|
.CP0_Config5 = MIPS_CONFIG5 | (1 << CP0C5_UFR) | (1 << CP0C5_LLB),
|
|
.CP0_Config5_rw_bitmask = (0 << CP0C5_M) | (1 << CP0C5_K) |
|
|
(1 << CP0C5_CV) | (0 << CP0C5_EVA) |
|
|
(1 << CP0C5_MSAEn) | (1 << CP0C5_UFR) |
|
|
(0 << CP0C5_NFExists),
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x3778FF1F,
|
|
.CP1_fcr0 = (1 << FCR0_UFRP) | (1 << FCR0_F64) | (1 << FCR0_L) |
|
|
(1 << FCR0_W) | (1 << FCR0_D) | (1 << FCR0_S) |
|
|
(0x93 << FCR0_PRID),
|
|
.SEGBITS = 32,
|
|
.PABITS = 32,
|
|
.insn_flags = CPU_MIPS32R5 | ASE_MIPS16 | ASE_MSA,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
#if defined(TARGET_MIPS64)
|
|
{
|
|
.name = "R4000",
|
|
.CP0_PRid = 0x00000400,
|
|
/* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
|
|
.CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
|
|
/* Note: Config1 is only used internally, the R4000 has only Config0. */
|
|
.CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
|
|
.CP0_LLAddr_rw_bitmask = 0xFFFFFFFF,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 16,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x3678FFFF,
|
|
/* The R4000 has a full 64bit FPU but doesn't use the fcr0 bits. */
|
|
.CP1_fcr0 = (0x5 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 40,
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS3,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "VR5432",
|
|
.CP0_PRid = 0x00005400,
|
|
/* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
|
|
.CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
|
|
.CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
|
|
.CP0_LLAddr_rw_bitmask = 0xFFFFFFFFL,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 16,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x3678FFFF,
|
|
/* The VR5432 has a full 64bit FPU but doesn't use the fcr0 bits. */
|
|
.CP1_fcr0 = (0x54 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 40,
|
|
.PABITS = 32,
|
|
.insn_flags = CPU_VR54XX,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "5Kc",
|
|
.CP0_PRid = 0x00018100,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (31 << CP0C1_MMU) |
|
|
(1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
|
|
(1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3,
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x12F8FFFF,
|
|
.SEGBITS = 42,
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "5Kf",
|
|
.CP0_PRid = 0x00018100,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (31 << CP0C1_MMU) |
|
|
(1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
|
|
(1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3,
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x36F8FFFF,
|
|
/* The 5Kf has F64 / L / W but doesn't use the fcr0 bits. */
|
|
.CP1_fcr0 = (1 << FCR0_D) | (1 << FCR0_S) |
|
|
(0x81 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 42,
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "20Kc",
|
|
/* We emulate a later version of the 20Kc, earlier ones had a broken
|
|
WAIT instruction. */
|
|
.CP0_PRid = 0x000182a0,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT) | (1 << CP0C0_VI),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (47 << CP0C1_MMU) |
|
|
(2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
|
|
(2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3,
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 0,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 1,
|
|
.CP0_Status_rw_bitmask = 0x36FBFFFF,
|
|
/* The 20Kc has F64 / L / W but doesn't use the fcr0 bits. */
|
|
.CP1_fcr0 = (1 << FCR0_3D) | (1 << FCR0_PS) |
|
|
(1 << FCR0_D) | (1 << FCR0_S) |
|
|
(0x82 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 40,
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64 | ASE_MIPS3D,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
/* A generic CPU providing MIPS64 Release 2 features.
|
|
FIXME: Eventually this should be replaced by a real CPU model. */
|
|
.name = "MIPS64R2-generic",
|
|
.CP0_PRid = 0x00010000,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
|
|
(2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
|
|
(2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_LPA),
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 0,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x36FBFFFF,
|
|
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
|
|
(1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
|
|
(1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 42,
|
|
/* The architectural limit is 59, but we have hardcoded 36 bit
|
|
in some places...
|
|
.PABITS = 59, */ /* the architectural limit */
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64R2 | ASE_MIPS3D,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "5KEc",
|
|
.CP0_PRid = 0x00018900,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (31 << CP0C1_MMU) |
|
|
(1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
|
|
(1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3,
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x12F8FFFF,
|
|
.SEGBITS = 42,
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64R2,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "5KEf",
|
|
.CP0_PRid = 0x00018900,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (31 << CP0C1_MMU) |
|
|
(1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
|
|
(1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3,
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 4,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x36F8FFFF,
|
|
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
|
|
(1 << FCR0_D) | (1 << FCR0_S) |
|
|
(0x89 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 42,
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64R2,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
/* A generic CPU supporting MIPS64 Release 6 ISA.
|
|
FIXME: Support IEEE 754-2008 FP.
|
|
Eventually this should be replaced by a real CPU model. */
|
|
.name = "MIPS64R6-generic",
|
|
.CP0_PRid = 0x00010000,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AR) | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
|
|
(2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
|
|
(2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
|
|
(0 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_RXI) | (1 << CP0C3_BP) |
|
|
(1 << CP0C3_BI) | (1 << CP0C3_ULRI) | (1U << CP0C3_M),
|
|
.CP0_Config4 = MIPS_CONFIG4 | (0xfc << CP0C4_KScrExist) |
|
|
(3 << CP0C4_IE) | (1 << CP0C4_M),
|
|
.CP0_Config5 = MIPS_CONFIG5 | (1 << CP0C5_LLB),
|
|
.CP0_Config5_rw_bitmask = (1 << CP0C5_SBRI) | (1 << CP0C5_FRE) |
|
|
(1 << CP0C5_UFE),
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 0,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x30D8FFFF,
|
|
.CP0_PageGrain = (1 << CP0PG_IEC) | (1 << CP0PG_XIE) |
|
|
(1U << CP0PG_RIE),
|
|
.CP0_PageGrain_rw_bitmask = 0,
|
|
.CP1_fcr0 = (1 << FCR0_FREP) | (1 << FCR0_F64) | (1 << FCR0_L) |
|
|
(1 << FCR0_W) | (1 << FCR0_D) | (1 << FCR0_S) |
|
|
(0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 42,
|
|
/* The architectural limit is 59, but we have hardcoded 36 bit
|
|
in some places...
|
|
.PABITS = 59, */ /* the architectural limit */
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64R6,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "Loongson-2E",
|
|
.CP0_PRid = 0x6302,
|
|
/* 64KB I-cache and d-cache. 4 way with 32 bit cache line size. */
|
|
.CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) |
|
|
(0x1<<5) | (0x1<<4) | (0x1<<1),
|
|
/* Note: Config1 is only used internally,
|
|
Loongson-2E has only Config0. */
|
|
.CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
|
|
.SYNCI_Step = 16,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x35D0FFFF,
|
|
.CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV),
|
|
.SEGBITS = 40,
|
|
.PABITS = 40,
|
|
.insn_flags = CPU_LOONGSON2E,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
.name = "Loongson-2F",
|
|
.CP0_PRid = 0x6303,
|
|
/* 64KB I-cache and d-cache. 4 way with 32 bit cache line size. */
|
|
.CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) |
|
|
(0x1<<5) | (0x1<<4) | (0x1<<1),
|
|
/* Note: Config1 is only used internally,
|
|
Loongson-2F has only Config0. */
|
|
.CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
|
|
.SYNCI_Step = 16,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0xF5D0FF1F, /* Bits 7:5 not writable. */
|
|
.CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV),
|
|
.SEGBITS = 40,
|
|
.PABITS = 40,
|
|
.insn_flags = CPU_LOONGSON2F,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
{
|
|
/* A generic CPU providing MIPS64 ASE DSP 2 features.
|
|
FIXME: Eventually this should be replaced by a real CPU model. */
|
|
.name = "mips64dspr2",
|
|
.CP0_PRid = 0x00010000,
|
|
.CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
|
|
(MMU_TYPE_R4000 << CP0C0_MT),
|
|
.CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
|
|
(2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
|
|
(2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
|
|
(1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
|
|
.CP0_Config2 = MIPS_CONFIG2,
|
|
.CP0_Config3 = MIPS_CONFIG3 | (1U << CP0C3_M) | (1 << CP0C3_DSP2P) |
|
|
(1 << CP0C3_DSPP) | (1 << CP0C3_LPA),
|
|
.CP0_LLAddr_rw_bitmask = 0,
|
|
.CP0_LLAddr_shift = 0,
|
|
.SYNCI_Step = 32,
|
|
.CCRes = 2,
|
|
.CP0_Status_rw_bitmask = 0x37FBFFFF,
|
|
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
|
|
(1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
|
|
(1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
|
|
.SEGBITS = 42,
|
|
/* The architectural limit is 59, but we have hardcoded 36 bit
|
|
in some places...
|
|
.PABITS = 59, */ /* the architectural limit */
|
|
.PABITS = 36,
|
|
.insn_flags = CPU_MIPS64R2 | ASE_DSP | ASE_DSPR2,
|
|
.mmu_type = MMU_TYPE_R4000,
|
|
},
|
|
|
|
#endif
|
|
};
|
|
|
|
static const mips_def_t *cpu_mips_find_by_name (const char *name)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(mips_defs); i++) {
|
|
if (strcasecmp(name, mips_defs[i].name) == 0) {
|
|
return &mips_defs[i];
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(mips_defs); i++) {
|
|
(*cpu_fprintf)(f, "MIPS '%s'\n",
|
|
mips_defs[i].name);
|
|
}
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
static void no_mmu_init (CPUMIPSState *env, const mips_def_t *def)
|
|
{
|
|
env->tlb->nb_tlb = 1;
|
|
env->tlb->map_address = &no_mmu_map_address;
|
|
}
|
|
|
|
static void fixed_mmu_init (CPUMIPSState *env, const mips_def_t *def)
|
|
{
|
|
env->tlb->nb_tlb = 1;
|
|
env->tlb->map_address = &fixed_mmu_map_address;
|
|
}
|
|
|
|
static void r4k_mmu_init (CPUMIPSState *env, const mips_def_t *def)
|
|
{
|
|
env->tlb->nb_tlb = 1 + ((def->CP0_Config1 >> CP0C1_MMU) & 63);
|
|
env->tlb->map_address = &r4k_map_address;
|
|
env->tlb->helper_tlbwi = r4k_helper_tlbwi;
|
|
env->tlb->helper_tlbwr = r4k_helper_tlbwr;
|
|
env->tlb->helper_tlbp = r4k_helper_tlbp;
|
|
env->tlb->helper_tlbr = r4k_helper_tlbr;
|
|
env->tlb->helper_tlbinv = r4k_helper_tlbinv;
|
|
env->tlb->helper_tlbinvf = r4k_helper_tlbinvf;
|
|
}
|
|
|
|
static void mmu_init (CPUMIPSState *env, const mips_def_t *def)
|
|
{
|
|
MIPSCPU *cpu = mips_env_get_cpu(env);
|
|
|
|
env->tlb = g_malloc0(sizeof(CPUMIPSTLBContext));
|
|
|
|
switch (def->mmu_type) {
|
|
case MMU_TYPE_NONE:
|
|
no_mmu_init(env, def);
|
|
break;
|
|
case MMU_TYPE_R4000:
|
|
r4k_mmu_init(env, def);
|
|
break;
|
|
case MMU_TYPE_FMT:
|
|
fixed_mmu_init(env, def);
|
|
break;
|
|
case MMU_TYPE_R3000:
|
|
case MMU_TYPE_R6000:
|
|
case MMU_TYPE_R8000:
|
|
default:
|
|
cpu_abort(CPU(cpu), "MMU type not supported\n");
|
|
}
|
|
}
|
|
#endif /* CONFIG_USER_ONLY */
|
|
|
|
static void fpu_init (CPUMIPSState *env, const mips_def_t *def)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MIPS_FPU_MAX; i++)
|
|
env->fpus[i].fcr0 = def->CP1_fcr0;
|
|
|
|
memcpy(&env->active_fpu, &env->fpus[0], sizeof(env->active_fpu));
|
|
}
|
|
|
|
static void mvp_init (CPUMIPSState *env, const mips_def_t *def)
|
|
{
|
|
env->mvp = g_malloc0(sizeof(CPUMIPSMVPContext));
|
|
|
|
/* MVPConf1 implemented, TLB sharable, no gating storage support,
|
|
programmable cache partitioning implemented, number of allocatable
|
|
and sharable TLB entries, MVP has allocatable TCs, 2 VPEs
|
|
implemented, 5 TCs implemented. */
|
|
env->mvp->CP0_MVPConf0 = (1U << CP0MVPC0_M) | (1 << CP0MVPC0_TLBS) |
|
|
(0 << CP0MVPC0_GS) | (1 << CP0MVPC0_PCP) |
|
|
// TODO: actually do 2 VPEs.
|
|
// (1 << CP0MVPC0_TCA) | (0x1 << CP0MVPC0_PVPE) |
|
|
// (0x04 << CP0MVPC0_PTC);
|
|
(1 << CP0MVPC0_TCA) | (0x0 << CP0MVPC0_PVPE) |
|
|
(0x00 << CP0MVPC0_PTC);
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
/* Usermode has no TLB support */
|
|
env->mvp->CP0_MVPConf0 |= (env->tlb->nb_tlb << CP0MVPC0_PTLBE);
|
|
#endif
|
|
|
|
/* Allocatable CP1 have media extensions, allocatable CP1 have FP support,
|
|
no UDI implemented, no CP2 implemented, 1 CP1 implemented. */
|
|
env->mvp->CP0_MVPConf1 = (1U << CP0MVPC1_CIM) | (1 << CP0MVPC1_CIF) |
|
|
(0x0 << CP0MVPC1_PCX) | (0x0 << CP0MVPC1_PCP2) |
|
|
(0x1 << CP0MVPC1_PCP1);
|
|
}
|
|
|
|
static void msa_reset(CPUMIPSState *env)
|
|
{
|
|
#ifdef CONFIG_USER_ONLY
|
|
/* MSA access enabled */
|
|
env->CP0_Config5 |= 1 << CP0C5_MSAEn;
|
|
env->CP0_Status |= (1 << CP0St_CU1) | (1 << CP0St_FR);
|
|
#endif
|
|
|
|
/* MSA CSR:
|
|
- non-signaling floating point exception mode off (NX bit is 0)
|
|
- Cause, Enables, and Flags are all 0
|
|
- round to nearest / ties to even (RM bits are 0) */
|
|
env->active_tc.msacsr = 0;
|
|
|
|
restore_msa_fp_status(env);
|
|
|
|
/* tininess detected after rounding.*/
|
|
set_float_detect_tininess(float_tininess_after_rounding,
|
|
&env->active_tc.msa_fp_status);
|
|
|
|
/* clear float_status exception flags */
|
|
set_float_exception_flags(0, &env->active_tc.msa_fp_status);
|
|
|
|
/* clear float_status nan mode */
|
|
set_default_nan_mode(0, &env->active_tc.msa_fp_status);
|
|
}
|