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/*
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* MIPS32 emulation for qemu: main translation routines.
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*
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* Copyright (c) 2004-2005 Jocelyn Mayer
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* Copyright (c) 2006 Marius Groeger (FPU operations)
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* Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support)
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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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdarg.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include "cpu.h" |
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#include "exec-all.h" |
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#include "disas.h" |
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//#define MIPS_DEBUG_DISAS
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//#define MIPS_SINGLE_STEP
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#ifdef USE_DIRECT_JUMP
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#define TBPARAM(x)
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#else
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#define TBPARAM(x) (long)(x) |
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#endif
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enum {
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#define DEF(s, n, copy_size) INDEX_op_ ## s, |
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#include "opc.h" |
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#undef DEF
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NB_OPS, |
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}; |
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static uint16_t *gen_opc_ptr;
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static uint32_t *gen_opparam_ptr;
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#include "gen-op.h" |
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/* MIPS major opcodes */
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#define MASK_OP_MAJOR(op) (op & (0x3F << 26)) |
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enum {
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/* indirect opcode tables */
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OPC_SPECIAL = (0x00 << 26), |
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OPC_REGIMM = (0x01 << 26), |
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OPC_CP0 = (0x10 << 26), |
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OPC_CP1 = (0x11 << 26), |
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OPC_CP2 = (0x12 << 26), |
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OPC_CP3 = (0x13 << 26), |
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OPC_SPECIAL2 = (0x1C << 26), |
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OPC_SPECIAL3 = (0x1F << 26), |
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/* arithmetic with immediate */
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OPC_ADDI = (0x08 << 26), |
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OPC_ADDIU = (0x09 << 26), |
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OPC_SLTI = (0x0A << 26), |
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OPC_SLTIU = (0x0B << 26), |
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OPC_ANDI = (0x0C << 26), |
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OPC_ORI = (0x0D << 26), |
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OPC_XORI = (0x0E << 26), |
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OPC_LUI = (0x0F << 26), |
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OPC_DADDI = (0x18 << 26), |
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OPC_DADDIU = (0x19 << 26), |
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/* Jump and branches */
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OPC_J = (0x02 << 26), |
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OPC_JAL = (0x03 << 26), |
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OPC_BEQ = (0x04 << 26), /* Unconditional if rs = rt = 0 (B) */ |
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OPC_BEQL = (0x14 << 26), |
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OPC_BNE = (0x05 << 26), |
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OPC_BNEL = (0x15 << 26), |
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OPC_BLEZ = (0x06 << 26), |
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OPC_BLEZL = (0x16 << 26), |
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OPC_BGTZ = (0x07 << 26), |
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OPC_BGTZL = (0x17 << 26), |
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OPC_JALX = (0x1D << 26), /* MIPS 16 only */ |
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/* Load and stores */
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OPC_LDL = (0x1A << 26), |
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OPC_LDR = (0x1B << 26), |
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OPC_LB = (0x20 << 26), |
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OPC_LH = (0x21 << 26), |
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OPC_LWL = (0x22 << 26), |
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OPC_LW = (0x23 << 26), |
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OPC_LBU = (0x24 << 26), |
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OPC_LHU = (0x25 << 26), |
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OPC_LWR = (0x26 << 26), |
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OPC_LWU = (0x27 << 26), |
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OPC_SB = (0x28 << 26), |
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OPC_SH = (0x29 << 26), |
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OPC_SWL = (0x2A << 26), |
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OPC_SW = (0x2B << 26), |
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OPC_SDL = (0x2C << 26), |
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OPC_SDR = (0x2D << 26), |
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OPC_SWR = (0x2E << 26), |
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OPC_LL = (0x30 << 26), |
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OPC_LLD = (0x34 << 26), |
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OPC_LD = (0x37 << 26), |
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OPC_SC = (0x38 << 26), |
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OPC_SCD = (0x3C << 26), |
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OPC_SD = (0x3F << 26), |
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/* Floating point load/store */
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OPC_LWC1 = (0x31 << 26), |
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OPC_LWC2 = (0x32 << 26), |
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OPC_LDC1 = (0x35 << 26), |
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OPC_LDC2 = (0x36 << 26), |
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OPC_SWC1 = (0x39 << 26), |
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OPC_SWC2 = (0x3A << 26), |
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OPC_SDC1 = (0x3D << 26), |
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OPC_SDC2 = (0x3E << 26), |
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/* MDMX ASE specific */
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OPC_MDMX = (0x1E << 26), |
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/* Cache and prefetch */
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OPC_CACHE = (0x2F << 26), |
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OPC_PREF = (0x33 << 26), |
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/* Reserved major opcode */
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OPC_MAJOR3B_RESERVED = (0x3B << 26), |
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}; |
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/* MIPS special opcodes */
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#define MASK_SPECIAL(op) MASK_OP_MAJOR(op) | (op & 0x3F) |
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enum {
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/* Shifts */
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OPC_SLL = 0x00 | OPC_SPECIAL,
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/* NOP is SLL r0, r0, 0 */
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/* SSNOP is SLL r0, r0, 1 */
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/* EHB is SLL r0, r0, 3 */
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OPC_SRL = 0x02 | OPC_SPECIAL, /* also ROTR */ |
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OPC_SRA = 0x03 | OPC_SPECIAL,
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OPC_SLLV = 0x04 | OPC_SPECIAL,
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OPC_SRLV = 0x06 | OPC_SPECIAL,
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OPC_SRAV = 0x07 | OPC_SPECIAL,
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OPC_DSLLV = 0x14 | OPC_SPECIAL,
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OPC_DSRLV = 0x16 | OPC_SPECIAL, /* also DROTRV */ |
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OPC_DSRAV = 0x17 | OPC_SPECIAL,
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OPC_DSLL = 0x38 | OPC_SPECIAL,
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OPC_DSRL = 0x3A | OPC_SPECIAL, /* also DROTR */ |
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OPC_DSRA = 0x3B | OPC_SPECIAL,
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OPC_DSLL32 = 0x3C | OPC_SPECIAL,
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OPC_DSRL32 = 0x3E | OPC_SPECIAL, /* also DROTR32 */ |
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OPC_DSRA32 = 0x3F | OPC_SPECIAL,
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/* Multiplication / division */
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OPC_MULT = 0x18 | OPC_SPECIAL,
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OPC_MULTU = 0x19 | OPC_SPECIAL,
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OPC_DIV = 0x1A | OPC_SPECIAL,
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OPC_DIVU = 0x1B | OPC_SPECIAL,
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OPC_DMULT = 0x1C | OPC_SPECIAL,
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OPC_DMULTU = 0x1D | OPC_SPECIAL,
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OPC_DDIV = 0x1E | OPC_SPECIAL,
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OPC_DDIVU = 0x1F | OPC_SPECIAL,
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/* 2 registers arithmetic / logic */
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OPC_ADD = 0x20 | OPC_SPECIAL,
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OPC_ADDU = 0x21 | OPC_SPECIAL,
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OPC_SUB = 0x22 | OPC_SPECIAL,
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OPC_SUBU = 0x23 | OPC_SPECIAL,
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OPC_AND = 0x24 | OPC_SPECIAL,
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OPC_OR = 0x25 | OPC_SPECIAL,
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OPC_XOR = 0x26 | OPC_SPECIAL,
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OPC_NOR = 0x27 | OPC_SPECIAL,
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OPC_SLT = 0x2A | OPC_SPECIAL,
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OPC_SLTU = 0x2B | OPC_SPECIAL,
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OPC_DADD = 0x2C | OPC_SPECIAL,
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OPC_DADDU = 0x2D | OPC_SPECIAL,
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OPC_DSUB = 0x2E | OPC_SPECIAL,
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OPC_DSUBU = 0x2F | OPC_SPECIAL,
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/* Jumps */
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OPC_JR = 0x08 | OPC_SPECIAL, /* Also JR.HB */ |
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OPC_JALR = 0x09 | OPC_SPECIAL, /* Also JALR.HB */ |
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/* Traps */
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OPC_TGE = 0x30 | OPC_SPECIAL,
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OPC_TGEU = 0x31 | OPC_SPECIAL,
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OPC_TLT = 0x32 | OPC_SPECIAL,
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OPC_TLTU = 0x33 | OPC_SPECIAL,
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OPC_TEQ = 0x34 | OPC_SPECIAL,
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OPC_TNE = 0x36 | OPC_SPECIAL,
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/* HI / LO registers load & stores */
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OPC_MFHI = 0x10 | OPC_SPECIAL,
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OPC_MTHI = 0x11 | OPC_SPECIAL,
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OPC_MFLO = 0x12 | OPC_SPECIAL,
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OPC_MTLO = 0x13 | OPC_SPECIAL,
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/* Conditional moves */
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OPC_MOVZ = 0x0A | OPC_SPECIAL,
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OPC_MOVN = 0x0B | OPC_SPECIAL,
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OPC_MOVCI = 0x01 | OPC_SPECIAL,
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/* Special */
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OPC_PMON = 0x05 | OPC_SPECIAL, /* inofficial */ |
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OPC_SYSCALL = 0x0C | OPC_SPECIAL,
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OPC_BREAK = 0x0D | OPC_SPECIAL,
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OPC_SPIM = 0x0E | OPC_SPECIAL, /* inofficial */ |
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OPC_SYNC = 0x0F | OPC_SPECIAL,
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OPC_SPECIAL15_RESERVED = 0x15 | OPC_SPECIAL,
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OPC_SPECIAL28_RESERVED = 0x28 | OPC_SPECIAL,
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OPC_SPECIAL29_RESERVED = 0x29 | OPC_SPECIAL,
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OPC_SPECIAL35_RESERVED = 0x35 | OPC_SPECIAL,
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OPC_SPECIAL37_RESERVED = 0x37 | OPC_SPECIAL,
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OPC_SPECIAL39_RESERVED = 0x39 | OPC_SPECIAL,
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OPC_SPECIAL3D_RESERVED = 0x3D | OPC_SPECIAL,
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}; |
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/* REGIMM (rt field) opcodes */
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#define MASK_REGIMM(op) MASK_OP_MAJOR(op) | (op & (0x1F << 16)) |
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enum {
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OPC_BLTZ = (0x00 << 16) | OPC_REGIMM, |
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OPC_BLTZL = (0x02 << 16) | OPC_REGIMM, |
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OPC_BGEZ = (0x01 << 16) | OPC_REGIMM, |
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OPC_BGEZL = (0x03 << 16) | OPC_REGIMM, |
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OPC_BLTZAL = (0x10 << 16) | OPC_REGIMM, |
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OPC_BLTZALL = (0x12 << 16) | OPC_REGIMM, |
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OPC_BGEZAL = (0x11 << 16) | OPC_REGIMM, |
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OPC_BGEZALL = (0x13 << 16) | OPC_REGIMM, |
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OPC_TGEI = (0x08 << 16) | OPC_REGIMM, |
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OPC_TGEIU = (0x09 << 16) | OPC_REGIMM, |
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OPC_TLTI = (0x0A << 16) | OPC_REGIMM, |
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OPC_TLTIU = (0x0B << 16) | OPC_REGIMM, |
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OPC_TEQI = (0x0C << 16) | OPC_REGIMM, |
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OPC_TNEI = (0x0E << 16) | OPC_REGIMM, |
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OPC_SYNCI = (0x1F << 16) | OPC_REGIMM, |
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}; |
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/* Special2 opcodes */
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#define MASK_SPECIAL2(op) MASK_OP_MAJOR(op) | (op & 0x3F) |
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enum {
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/* Multiply & xxx operations */
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OPC_MADD = 0x00 | OPC_SPECIAL2,
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OPC_MADDU = 0x01 | OPC_SPECIAL2,
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OPC_MUL = 0x02 | OPC_SPECIAL2,
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OPC_MSUB = 0x04 | OPC_SPECIAL2,
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OPC_MSUBU = 0x05 | OPC_SPECIAL2,
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/* Misc */
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OPC_CLZ = 0x20 | OPC_SPECIAL2,
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OPC_CLO = 0x21 | OPC_SPECIAL2,
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OPC_DCLZ = 0x24 | OPC_SPECIAL2,
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OPC_DCLO = 0x25 | OPC_SPECIAL2,
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/* Special */
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OPC_SDBBP = 0x3F | OPC_SPECIAL2,
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}; |
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/* Special3 opcodes */
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#define MASK_SPECIAL3(op) MASK_OP_MAJOR(op) | (op & 0x3F) |
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enum {
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OPC_EXT = 0x00 | OPC_SPECIAL3,
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OPC_DEXTM = 0x01 | OPC_SPECIAL3,
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OPC_DEXTU = 0x02 | OPC_SPECIAL3,
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OPC_DEXT = 0x03 | OPC_SPECIAL3,
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OPC_INS = 0x04 | OPC_SPECIAL3,
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OPC_DINSM = 0x05 | OPC_SPECIAL3,
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OPC_DINSU = 0x06 | OPC_SPECIAL3,
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OPC_DINS = 0x07 | OPC_SPECIAL3,
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OPC_BSHFL = 0x20 | OPC_SPECIAL3,
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OPC_DBSHFL = 0x24 | OPC_SPECIAL3,
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OPC_RDHWR = 0x3B | OPC_SPECIAL3,
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}; |
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/* BSHFL opcodes */
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#define MASK_BSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6)) |
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enum {
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OPC_WSBH = (0x02 << 6) | OPC_BSHFL, |
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OPC_SEB = (0x10 << 6) | OPC_BSHFL, |
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OPC_SEH = (0x18 << 6) | OPC_BSHFL, |
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}; |
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/* DBSHFL opcodes */
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#define MASK_DBSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6)) |
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enum {
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OPC_DSBH = (0x02 << 6) | OPC_DBSHFL, |
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OPC_DSHD = (0x05 << 6) | OPC_DBSHFL, |
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}; |
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/* Coprocessor 0 (rs field) */
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#define MASK_CP0(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) |
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enum {
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OPC_MFC0 = (0x00 << 21) | OPC_CP0, |
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OPC_DMFC0 = (0x01 << 21) | OPC_CP0, |
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OPC_MTC0 = (0x04 << 21) | OPC_CP0, |
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OPC_DMTC0 = (0x05 << 21) | OPC_CP0, |
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OPC_RDPGPR = (0x0A << 21) | OPC_CP0, |
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OPC_MFMC0 = (0x0B << 21) | OPC_CP0, |
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OPC_WRPGPR = (0x0E << 21) | OPC_CP0, |
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OPC_C0 = (0x10 << 21) | OPC_CP0, |
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OPC_C0_FIRST = (0x10 << 21) | OPC_CP0, |
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OPC_C0_LAST = (0x1F << 21) | OPC_CP0, |
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}; |
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|
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/* MFMC0 opcodes */
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#define MASK_MFMC0(op) MASK_CP0(op) | (op & ((0x0C << 11) | (1 << 5))) |
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|
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enum {
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OPC_DI = (0 << 5) | (0x0C << 11) | OPC_MFMC0, |
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OPC_EI = (1 << 5) | (0x0C << 11) | OPC_MFMC0, |
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}; |
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|
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/* Coprocessor 0 (with rs == C0) */
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#define MASK_C0(op) MASK_CP0(op) | (op & 0x3F) |
| 316 |
|
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enum {
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OPC_TLBR = 0x01 | OPC_C0,
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OPC_TLBWI = 0x02 | OPC_C0,
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OPC_TLBWR = 0x06 | OPC_C0,
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OPC_TLBP = 0x08 | OPC_C0,
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OPC_RFE = 0x10 | OPC_C0,
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OPC_ERET = 0x18 | OPC_C0,
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OPC_DERET = 0x1F | OPC_C0,
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OPC_WAIT = 0x20 | OPC_C0,
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}; |
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|
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/* Coprocessor 1 (rs field) */
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#define MASK_CP1(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) |
| 330 |
|
| 331 |
enum {
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| 332 |
OPC_MFC1 = (0x00 << 21) | OPC_CP1, |
| 333 |
OPC_DMFC1 = (0x01 << 21) | OPC_CP1, |
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OPC_CFC1 = (0x02 << 21) | OPC_CP1, |
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OPC_MFHCI = (0x03 << 21) | OPC_CP1, |
| 336 |
OPC_MTC1 = (0x04 << 21) | OPC_CP1, |
| 337 |
OPC_DMTC1 = (0x05 << 21) | OPC_CP1, |
| 338 |
OPC_CTC1 = (0x06 << 21) | OPC_CP1, |
| 339 |
OPC_MTHCI = (0x07 << 21) | OPC_CP1, |
| 340 |
OPC_BC1 = (0x08 << 21) | OPC_CP1, /* bc */ |
| 341 |
OPC_S_FMT = (0x10 << 21) | OPC_CP1, /* 16: fmt=single fp */ |
| 342 |
OPC_D_FMT = (0x11 << 21) | OPC_CP1, /* 17: fmt=double fp */ |
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OPC_E_FMT = (0x12 << 21) | OPC_CP1, /* 18: fmt=extended fp */ |
| 344 |
OPC_Q_FMT = (0x13 << 21) | OPC_CP1, /* 19: fmt=quad fp */ |
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OPC_W_FMT = (0x14 << 21) | OPC_CP1, /* 20: fmt=32bit fixed */ |
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OPC_L_FMT = (0x15 << 21) | OPC_CP1, /* 21: fmt=64bit fixed */ |
| 347 |
}; |
| 348 |
|
| 349 |
enum {
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| 350 |
OPC_BC1F = (0x00 << 16) | OPC_BC1, |
| 351 |
OPC_BC1T = (0x01 << 16) | OPC_BC1, |
| 352 |
OPC_BC1FL = (0x02 << 16) | OPC_BC1, |
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OPC_BC1TL = (0x03 << 16) | OPC_BC1, |
| 354 |
}; |
| 355 |
|
| 356 |
#define MASK_CP1_BCOND(op) MASK_CP1(op) | (op & (0x3 << 16)) |
| 357 |
#define MASK_CP1_FUNC(op) MASK_CP1(op) | (op & 0x3F) |
| 358 |
|
| 359 |
#define MASK_CP2(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) |
| 360 |
#define MASK_CP3(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) |
| 361 |
|
| 362 |
const unsigned char *regnames[] = |
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{ "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
|
| 364 |
"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", |
| 365 |
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
| 366 |
"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", }; |
| 367 |
|
| 368 |
/* Warning: no function for r0 register (hard wired to zero) */
|
| 369 |
#define GEN32(func, NAME) \
|
| 370 |
static GenOpFunc *NAME ## _table [32] = { \ |
| 371 |
NULL, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| 372 |
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| 373 |
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
| 374 |
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
| 375 |
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
| 376 |
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
| 377 |
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
| 378 |
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
| 379 |
}; \ |
| 380 |
static inline void func(int n) \ |
| 381 |
{ \
|
| 382 |
NAME ## _table[n](); \ |
| 383 |
} |
| 384 |
|
| 385 |
/* General purpose registers moves */
|
| 386 |
GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr); |
| 387 |
GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr); |
| 388 |
GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr); |
| 389 |
|
| 390 |
GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr); |
| 391 |
GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr); |
| 392 |
|
| 393 |
static const char *fregnames[] = |
| 394 |
{ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
|
| 395 |
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", |
| 396 |
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", |
| 397 |
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", }; |
| 398 |
|
| 399 |
# define SFGEN32(func, NAME) \
|
| 400 |
static GenOpFunc *NAME ## _table [32] = { \ |
| 401 |
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| 402 |
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| 403 |
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
| 404 |
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
| 405 |
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
| 406 |
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
| 407 |
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
| 408 |
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
| 409 |
}; \ |
| 410 |
static inline void func(int n) \ |
| 411 |
{ \
|
| 412 |
NAME ## _table[n](); \ |
| 413 |
} |
| 414 |
|
| 415 |
# define DFGEN32(func, NAME) \
|
| 416 |
static GenOpFunc *NAME ## _table [32] = { \ |
| 417 |
NAME ## 0, 0, NAME ## 2, 0, \ |
| 418 |
NAME ## 4, 0, NAME ## 6, 0, \ |
| 419 |
NAME ## 8, 0, NAME ## 10, 0, \ |
| 420 |
NAME ## 12, 0, NAME ## 14, 0, \ |
| 421 |
NAME ## 16, 0, NAME ## 18, 0, \ |
| 422 |
NAME ## 20, 0, NAME ## 22, 0, \ |
| 423 |
NAME ## 24, 0, NAME ## 26, 0, \ |
| 424 |
NAME ## 28, 0, NAME ## 30, 0, \ |
| 425 |
}; \ |
| 426 |
static inline void func(int n) \ |
| 427 |
{ \
|
| 428 |
NAME ## _table[n](); \ |
| 429 |
} |
| 430 |
|
| 431 |
SFGEN32(gen_op_load_fpr_WT0, gen_op_load_fpr_WT0_fpr); |
| 432 |
SFGEN32(gen_op_store_fpr_WT0, gen_op_store_fpr_WT0_fpr); |
| 433 |
|
| 434 |
SFGEN32(gen_op_load_fpr_WT1, gen_op_load_fpr_WT1_fpr); |
| 435 |
SFGEN32(gen_op_store_fpr_WT1, gen_op_store_fpr_WT1_fpr); |
| 436 |
|
| 437 |
SFGEN32(gen_op_load_fpr_WT2, gen_op_load_fpr_WT2_fpr); |
| 438 |
SFGEN32(gen_op_store_fpr_WT2, gen_op_store_fpr_WT2_fpr); |
| 439 |
|
| 440 |
DFGEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fpr); |
| 441 |
DFGEN32(gen_op_store_fpr_DT0, gen_op_store_fpr_DT0_fpr); |
| 442 |
|
| 443 |
DFGEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fpr); |
| 444 |
DFGEN32(gen_op_store_fpr_DT1, gen_op_store_fpr_DT1_fpr); |
| 445 |
|
| 446 |
DFGEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fpr); |
| 447 |
DFGEN32(gen_op_store_fpr_DT2, gen_op_store_fpr_DT2_fpr); |
| 448 |
|
| 449 |
#define FOP_CONDS(fmt) \
|
| 450 |
static GenOpFunc * cond_ ## fmt ## _table[16] = { \ |
| 451 |
gen_op_cmp_ ## fmt ## _f, \ |
| 452 |
gen_op_cmp_ ## fmt ## _un, \ |
| 453 |
gen_op_cmp_ ## fmt ## _eq, \ |
| 454 |
gen_op_cmp_ ## fmt ## _ueq, \ |
| 455 |
gen_op_cmp_ ## fmt ## _olt, \ |
| 456 |
gen_op_cmp_ ## fmt ## _ult, \ |
| 457 |
gen_op_cmp_ ## fmt ## _ole, \ |
| 458 |
gen_op_cmp_ ## fmt ## _ule, \ |
| 459 |
gen_op_cmp_ ## fmt ## _sf, \ |
| 460 |
gen_op_cmp_ ## fmt ## _ngle, \ |
| 461 |
gen_op_cmp_ ## fmt ## _seq, \ |
| 462 |
gen_op_cmp_ ## fmt ## _ngl, \ |
| 463 |
gen_op_cmp_ ## fmt ## _lt, \ |
| 464 |
gen_op_cmp_ ## fmt ## _nge, \ |
| 465 |
gen_op_cmp_ ## fmt ## _le, \ |
| 466 |
gen_op_cmp_ ## fmt ## _ngt, \ |
| 467 |
}; \ |
| 468 |
static inline void gen_cmp_ ## fmt(int n) \ |
| 469 |
{ \
|
| 470 |
cond_ ## fmt ## _table[n](); \ |
| 471 |
} |
| 472 |
|
| 473 |
FOP_CONDS(d) |
| 474 |
FOP_CONDS(s) |
| 475 |
|
| 476 |
typedef struct DisasContext { |
| 477 |
struct TranslationBlock *tb;
|
| 478 |
target_ulong pc, saved_pc; |
| 479 |
uint32_t opcode; |
| 480 |
/* Routine used to access memory */
|
| 481 |
int mem_idx;
|
| 482 |
uint32_t hflags, saved_hflags; |
| 483 |
uint32_t CP0_Status; |
| 484 |
int bstate;
|
| 485 |
target_ulong btarget; |
| 486 |
} DisasContext; |
| 487 |
|
| 488 |
enum {
|
| 489 |
BS_NONE = 0, /* We go out of the TB without reaching a branch or an |
| 490 |
* exception condition
|
| 491 |
*/
|
| 492 |
BS_STOP = 1, /* We want to stop translation for any reason */ |
| 493 |
BS_BRANCH = 2, /* We reached a branch condition */ |
| 494 |
BS_EXCP = 3, /* We reached an exception condition */ |
| 495 |
}; |
| 496 |
|
| 497 |
#if defined MIPS_DEBUG_DISAS
|
| 498 |
#define MIPS_DEBUG(fmt, args...) \
|
| 499 |
do { \
|
| 500 |
if (loglevel & CPU_LOG_TB_IN_ASM) { \
|
| 501 |
fprintf(logfile, "%08x: %08x " fmt "\n", \ |
| 502 |
ctx->pc, ctx->opcode , ##args); \ |
| 503 |
} \ |
| 504 |
} while (0) |
| 505 |
#else
|
| 506 |
#define MIPS_DEBUG(fmt, args...) do { } while(0) |
| 507 |
#endif
|
| 508 |
|
| 509 |
#define MIPS_INVAL(op) \
|
| 510 |
do { \
|
| 511 |
MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26, \ |
| 512 |
ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); \ |
| 513 |
} while (0) |
| 514 |
|
| 515 |
#define GEN_LOAD_REG_TN(Tn, Rn) \
|
| 516 |
do { \
|
| 517 |
if (Rn == 0) { \ |
| 518 |
glue(gen_op_reset_, Tn)(); \ |
| 519 |
} else { \
|
| 520 |
glue(gen_op_load_gpr_, Tn)(Rn); \ |
| 521 |
} \ |
| 522 |
} while (0) |
| 523 |
|
| 524 |
#define GEN_LOAD_IMM_TN(Tn, Imm) \
|
| 525 |
do { \
|
| 526 |
if (Imm == 0) { \ |
| 527 |
glue(gen_op_reset_, Tn)(); \ |
| 528 |
} else { \
|
| 529 |
glue(gen_op_set_, Tn)(Imm); \ |
| 530 |
} \ |
| 531 |
} while (0) |
| 532 |
|
| 533 |
#define GEN_STORE_TN_REG(Rn, Tn) \
|
| 534 |
do { \
|
| 535 |
if (Rn != 0) { \ |
| 536 |
glue(glue(gen_op_store_, Tn),_gpr)(Rn); \ |
| 537 |
} \ |
| 538 |
} while (0) |
| 539 |
|
| 540 |
#define GEN_LOAD_FREG_FTN(FTn, Fn) \
|
| 541 |
do { \
|
| 542 |
glue(gen_op_load_fpr_, FTn)(Fn); \ |
| 543 |
} while (0) |
| 544 |
|
| 545 |
#define GEN_STORE_FTN_FREG(Fn, FTn) \
|
| 546 |
do { \
|
| 547 |
glue(gen_op_store_fpr_, FTn)(Fn); \ |
| 548 |
} while (0) |
| 549 |
|
| 550 |
static inline void save_cpu_state (DisasContext *ctx, int do_save_pc) |
| 551 |
{
|
| 552 |
#if defined MIPS_DEBUG_DISAS
|
| 553 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 554 |
fprintf(logfile, "hflags %08x saved %08x\n",
|
| 555 |
ctx->hflags, ctx->saved_hflags); |
| 556 |
} |
| 557 |
#endif
|
| 558 |
if (do_save_pc && ctx->pc != ctx->saved_pc) {
|
| 559 |
gen_op_save_pc(ctx->pc); |
| 560 |
ctx->saved_pc = ctx->pc; |
| 561 |
} |
| 562 |
if (ctx->hflags != ctx->saved_hflags) {
|
| 563 |
gen_op_save_state(ctx->hflags); |
| 564 |
ctx->saved_hflags = ctx->hflags; |
| 565 |
if (ctx->hflags & MIPS_HFLAG_BR) {
|
| 566 |
gen_op_save_breg_target(); |
| 567 |
} else if (ctx->hflags & MIPS_HFLAG_B) { |
| 568 |
gen_op_save_btarget(ctx->btarget); |
| 569 |
} else if (ctx->hflags & MIPS_HFLAG_BMASK) { |
| 570 |
gen_op_save_bcond(); |
| 571 |
gen_op_save_btarget(ctx->btarget); |
| 572 |
} |
| 573 |
} |
| 574 |
} |
| 575 |
|
| 576 |
static inline void generate_exception_err (DisasContext *ctx, int excp, int err) |
| 577 |
{
|
| 578 |
#if defined MIPS_DEBUG_DISAS
|
| 579 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
| 580 |
fprintf(logfile, "%s: raise exception %d\n", __func__, excp);
|
| 581 |
#endif
|
| 582 |
save_cpu_state(ctx, 1);
|
| 583 |
if (err == 0) |
| 584 |
gen_op_raise_exception(excp); |
| 585 |
else
|
| 586 |
gen_op_raise_exception_err(excp, err); |
| 587 |
ctx->bstate = BS_EXCP; |
| 588 |
} |
| 589 |
|
| 590 |
static inline void generate_exception (DisasContext *ctx, int excp) |
| 591 |
{
|
| 592 |
generate_exception_err (ctx, excp, 0);
|
| 593 |
} |
| 594 |
|
| 595 |
#if defined(CONFIG_USER_ONLY)
|
| 596 |
#define op_ldst(name) gen_op_##name##_raw() |
| 597 |
#define OP_LD_TABLE(width)
|
| 598 |
#define OP_ST_TABLE(width)
|
| 599 |
#else
|
| 600 |
#define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() |
| 601 |
#define OP_LD_TABLE(width) \
|
| 602 |
static GenOpFunc *gen_op_l##width[] = { \ |
| 603 |
&gen_op_l##width##_user, \ |
| 604 |
&gen_op_l##width##_kernel, \ |
| 605 |
} |
| 606 |
#define OP_ST_TABLE(width) \
|
| 607 |
static GenOpFunc *gen_op_s##width[] = { \ |
| 608 |
&gen_op_s##width##_user, \ |
| 609 |
&gen_op_s##width##_kernel, \ |
| 610 |
} |
| 611 |
#endif
|
| 612 |
|
| 613 |
#ifdef MIPS_HAS_MIPS64
|
| 614 |
OP_LD_TABLE(d); |
| 615 |
OP_LD_TABLE(dl); |
| 616 |
OP_LD_TABLE(dr); |
| 617 |
OP_ST_TABLE(d); |
| 618 |
OP_ST_TABLE(dl); |
| 619 |
OP_ST_TABLE(dr); |
| 620 |
#endif
|
| 621 |
OP_LD_TABLE(w); |
| 622 |
OP_LD_TABLE(wu); |
| 623 |
OP_LD_TABLE(wl); |
| 624 |
OP_LD_TABLE(wr); |
| 625 |
OP_ST_TABLE(w); |
| 626 |
OP_ST_TABLE(wl); |
| 627 |
OP_ST_TABLE(wr); |
| 628 |
OP_LD_TABLE(h); |
| 629 |
OP_LD_TABLE(hu); |
| 630 |
OP_ST_TABLE(h); |
| 631 |
OP_LD_TABLE(b); |
| 632 |
OP_LD_TABLE(bu); |
| 633 |
OP_ST_TABLE(b); |
| 634 |
OP_LD_TABLE(l); |
| 635 |
OP_ST_TABLE(c); |
| 636 |
OP_LD_TABLE(wc1); |
| 637 |
OP_ST_TABLE(wc1); |
| 638 |
OP_LD_TABLE(dc1); |
| 639 |
OP_ST_TABLE(dc1); |
| 640 |
|
| 641 |
/* Load and store */
|
| 642 |
static void gen_ldst (DisasContext *ctx, uint32_t opc, int rt, |
| 643 |
int base, int16_t offset)
|
| 644 |
{
|
| 645 |
const char *opn = "unk"; |
| 646 |
|
| 647 |
if (base == 0) { |
| 648 |
GEN_LOAD_IMM_TN(T0, offset); |
| 649 |
} else if (offset == 0) { |
| 650 |
gen_op_load_gpr_T0(base); |
| 651 |
} else {
|
| 652 |
gen_op_load_gpr_T0(base); |
| 653 |
gen_op_set_T1(offset); |
| 654 |
gen_op_add(); |
| 655 |
} |
| 656 |
/* Don't do NOP if destination is zero: we must perform the actual
|
| 657 |
* memory access
|
| 658 |
*/
|
| 659 |
switch (opc) {
|
| 660 |
#ifdef MIPS_HAS_MIPS64
|
| 661 |
case OPC_LD:
|
| 662 |
op_ldst(ld); |
| 663 |
GEN_STORE_TN_REG(rt, T0); |
| 664 |
opn = "ld";
|
| 665 |
break;
|
| 666 |
case OPC_LLD:
|
| 667 |
op_ldst(lld); |
| 668 |
GEN_STORE_TN_REG(rt, T0); |
| 669 |
opn = "lld";
|
| 670 |
break;
|
| 671 |
case OPC_SD:
|
| 672 |
GEN_LOAD_REG_TN(T1, rt); |
| 673 |
op_ldst(sd); |
| 674 |
opn = "sd";
|
| 675 |
break;
|
| 676 |
case OPC_SCD:
|
| 677 |
GEN_LOAD_REG_TN(T1, rt); |
| 678 |
op_ldst(scd); |
| 679 |
opn = "scd";
|
| 680 |
break;
|
| 681 |
case OPC_LDL:
|
| 682 |
op_ldst(ldl); |
| 683 |
GEN_STORE_TN_REG(rt, T0); |
| 684 |
opn = "ldl";
|
| 685 |
break;
|
| 686 |
case OPC_SDL:
|
| 687 |
GEN_LOAD_REG_TN(T1, rt); |
| 688 |
op_ldst(sdl); |
| 689 |
opn = "sdl";
|
| 690 |
break;
|
| 691 |
case OPC_LDR:
|
| 692 |
op_ldst(ldr); |
| 693 |
GEN_STORE_TN_REG(rt, T0); |
| 694 |
opn = "ldr";
|
| 695 |
break;
|
| 696 |
case OPC_SDR:
|
| 697 |
GEN_LOAD_REG_TN(T1, rt); |
| 698 |
op_ldst(sdr); |
| 699 |
opn = "sdr";
|
| 700 |
break;
|
| 701 |
#endif
|
| 702 |
case OPC_LW:
|
| 703 |
op_ldst(lw); |
| 704 |
GEN_STORE_TN_REG(rt, T0); |
| 705 |
opn = "lw";
|
| 706 |
break;
|
| 707 |
case OPC_LWU:
|
| 708 |
op_ldst(lwu); |
| 709 |
GEN_STORE_TN_REG(rt, T0); |
| 710 |
opn = "lwu";
|
| 711 |
break;
|
| 712 |
case OPC_SW:
|
| 713 |
GEN_LOAD_REG_TN(T1, rt); |
| 714 |
op_ldst(sw); |
| 715 |
opn = "sw";
|
| 716 |
break;
|
| 717 |
case OPC_LH:
|
| 718 |
op_ldst(lh); |
| 719 |
GEN_STORE_TN_REG(rt, T0); |
| 720 |
opn = "lh";
|
| 721 |
break;
|
| 722 |
case OPC_SH:
|
| 723 |
GEN_LOAD_REG_TN(T1, rt); |
| 724 |
op_ldst(sh); |
| 725 |
opn = "sh";
|
| 726 |
break;
|
| 727 |
case OPC_LHU:
|
| 728 |
op_ldst(lhu); |
| 729 |
GEN_STORE_TN_REG(rt, T0); |
| 730 |
opn = "lhu";
|
| 731 |
break;
|
| 732 |
case OPC_LB:
|
| 733 |
op_ldst(lb); |
| 734 |
GEN_STORE_TN_REG(rt, T0); |
| 735 |
opn = "lb";
|
| 736 |
break;
|
| 737 |
case OPC_SB:
|
| 738 |
GEN_LOAD_REG_TN(T1, rt); |
| 739 |
op_ldst(sb); |
| 740 |
opn = "sb";
|
| 741 |
break;
|
| 742 |
case OPC_LBU:
|
| 743 |
op_ldst(lbu); |
| 744 |
GEN_STORE_TN_REG(rt, T0); |
| 745 |
opn = "lbu";
|
| 746 |
break;
|
| 747 |
case OPC_LWL:
|
| 748 |
GEN_LOAD_REG_TN(T1, rt); |
| 749 |
op_ldst(lwl); |
| 750 |
GEN_STORE_TN_REG(rt, T0); |
| 751 |
opn = "lwl";
|
| 752 |
break;
|
| 753 |
case OPC_SWL:
|
| 754 |
GEN_LOAD_REG_TN(T1, rt); |
| 755 |
op_ldst(swl); |
| 756 |
opn = "swr";
|
| 757 |
break;
|
| 758 |
case OPC_LWR:
|
| 759 |
GEN_LOAD_REG_TN(T1, rt); |
| 760 |
op_ldst(lwr); |
| 761 |
GEN_STORE_TN_REG(rt, T0); |
| 762 |
opn = "lwr";
|
| 763 |
break;
|
| 764 |
case OPC_SWR:
|
| 765 |
GEN_LOAD_REG_TN(T1, rt); |
| 766 |
op_ldst(swr); |
| 767 |
opn = "swr";
|
| 768 |
break;
|
| 769 |
case OPC_LL:
|
| 770 |
op_ldst(ll); |
| 771 |
GEN_STORE_TN_REG(rt, T0); |
| 772 |
opn = "ll";
|
| 773 |
break;
|
| 774 |
case OPC_SC:
|
| 775 |
GEN_LOAD_REG_TN(T1, rt); |
| 776 |
op_ldst(sc); |
| 777 |
GEN_STORE_TN_REG(rt, T0); |
| 778 |
opn = "sc";
|
| 779 |
break;
|
| 780 |
default:
|
| 781 |
MIPS_INVAL("load/store");
|
| 782 |
generate_exception(ctx, EXCP_RI); |
| 783 |
return;
|
| 784 |
} |
| 785 |
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
|
| 786 |
} |
| 787 |
|
| 788 |
/* Load and store */
|
| 789 |
static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft, |
| 790 |
int base, int16_t offset)
|
| 791 |
{
|
| 792 |
const char *opn = "unk"; |
| 793 |
|
| 794 |
if (base == 0) { |
| 795 |
GEN_LOAD_IMM_TN(T0, offset); |
| 796 |
} else if (offset == 0) { |
| 797 |
gen_op_load_gpr_T0(base); |
| 798 |
} else {
|
| 799 |
gen_op_load_gpr_T0(base); |
| 800 |
gen_op_set_T1(offset); |
| 801 |
gen_op_add(); |
| 802 |
} |
| 803 |
/* Don't do NOP if destination is zero: we must perform the actual
|
| 804 |
* memory access
|
| 805 |
*/
|
| 806 |
switch (opc) {
|
| 807 |
case OPC_LWC1:
|
| 808 |
op_ldst(lwc1); |
| 809 |
GEN_STORE_FTN_FREG(ft, WT0); |
| 810 |
opn = "lwc1";
|
| 811 |
break;
|
| 812 |
case OPC_SWC1:
|
| 813 |
GEN_LOAD_FREG_FTN(WT0, ft); |
| 814 |
op_ldst(swc1); |
| 815 |
opn = "swc1";
|
| 816 |
break;
|
| 817 |
case OPC_LDC1:
|
| 818 |
op_ldst(ldc1); |
| 819 |
GEN_STORE_FTN_FREG(ft, DT0); |
| 820 |
opn = "ldc1";
|
| 821 |
break;
|
| 822 |
case OPC_SDC1:
|
| 823 |
GEN_LOAD_FREG_FTN(DT0, ft); |
| 824 |
op_ldst(sdc1); |
| 825 |
opn = "sdc1";
|
| 826 |
break;
|
| 827 |
default:
|
| 828 |
MIPS_INVAL("float load/store");
|
| 829 |
generate_exception_err(ctx, EXCP_CpU, 1);
|
| 830 |
return;
|
| 831 |
} |
| 832 |
MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
|
| 833 |
} |
| 834 |
|
| 835 |
/* Arithmetic with immediate operand */
|
| 836 |
static void gen_arith_imm (DisasContext *ctx, uint32_t opc, int rt, |
| 837 |
int rs, int16_t imm)
|
| 838 |
{
|
| 839 |
uint32_t uimm; |
| 840 |
const char *opn = "unk"; |
| 841 |
|
| 842 |
if (rt == 0 && opc != OPC_ADDI && opc != OPC_DADDI) { |
| 843 |
/* if no destination, treat it as a NOP
|
| 844 |
* For addi, we must generate the overflow exception when needed.
|
| 845 |
*/
|
| 846 |
MIPS_DEBUG("NOP");
|
| 847 |
return;
|
| 848 |
} |
| 849 |
if (opc == OPC_ADDI || opc == OPC_ADDIU ||
|
| 850 |
opc == OPC_DADDI || opc == OPC_DADDIU || |
| 851 |
opc == OPC_SLTI || opc == OPC_SLTIU) |
| 852 |
uimm = (int32_t)imm; /* Sign extend to 32 bits */
|
| 853 |
else
|
| 854 |
uimm = (uint16_t)imm; |
| 855 |
if (opc != OPC_LUI) {
|
| 856 |
GEN_LOAD_REG_TN(T0, rs); |
| 857 |
GEN_LOAD_IMM_TN(T1, uimm); |
| 858 |
} else {
|
| 859 |
uimm = uimm << 16;
|
| 860 |
GEN_LOAD_IMM_TN(T0, uimm); |
| 861 |
} |
| 862 |
switch (opc) {
|
| 863 |
case OPC_ADDI:
|
| 864 |
save_cpu_state(ctx, 1);
|
| 865 |
gen_op_addo(); |
| 866 |
opn = "addi";
|
| 867 |
break;
|
| 868 |
case OPC_ADDIU:
|
| 869 |
gen_op_add(); |
| 870 |
opn = "addiu";
|
| 871 |
break;
|
| 872 |
#ifdef MIPS_HAS_MIPS64
|
| 873 |
case OPC_DADDI:
|
| 874 |
save_cpu_state(ctx, 1);
|
| 875 |
gen_op_daddo(); |
| 876 |
opn = "daddi";
|
| 877 |
break;
|
| 878 |
case OPC_DADDIU:
|
| 879 |
gen_op_dadd(); |
| 880 |
opn = "daddiu";
|
| 881 |
break;
|
| 882 |
#endif
|
| 883 |
case OPC_SLTI:
|
| 884 |
gen_op_lt(); |
| 885 |
opn = "slti";
|
| 886 |
break;
|
| 887 |
case OPC_SLTIU:
|
| 888 |
gen_op_ltu(); |
| 889 |
opn = "sltiu";
|
| 890 |
break;
|
| 891 |
case OPC_ANDI:
|
| 892 |
gen_op_and(); |
| 893 |
opn = "andi";
|
| 894 |
break;
|
| 895 |
case OPC_ORI:
|
| 896 |
gen_op_or(); |
| 897 |
opn = "ori";
|
| 898 |
break;
|
| 899 |
case OPC_XORI:
|
| 900 |
gen_op_xor(); |
| 901 |
opn = "xori";
|
| 902 |
break;
|
| 903 |
case OPC_LUI:
|
| 904 |
opn = "lui";
|
| 905 |
break;
|
| 906 |
case OPC_SLL:
|
| 907 |
gen_op_sll(); |
| 908 |
opn = "sll";
|
| 909 |
break;
|
| 910 |
case OPC_SRA:
|
| 911 |
gen_op_sra(); |
| 912 |
opn = "sra";
|
| 913 |
break;
|
| 914 |
case OPC_SRL:
|
| 915 |
if ((ctx->opcode >> 21) & 1) { |
| 916 |
gen_op_rotr(); |
| 917 |
opn = "rotr";
|
| 918 |
} else {
|
| 919 |
gen_op_srl(); |
| 920 |
opn = "srl";
|
| 921 |
} |
| 922 |
break;
|
| 923 |
#ifdef MIPS_HAS_MIPS64
|
| 924 |
case OPC_DSLL:
|
| 925 |
gen_op_dsll(); |
| 926 |
opn = "dsll";
|
| 927 |
break;
|
| 928 |
case OPC_DSRA:
|
| 929 |
gen_op_dsra(); |
| 930 |
opn = "dsra";
|
| 931 |
break;
|
| 932 |
case OPC_DSRL:
|
| 933 |
if ((ctx->opcode >> 21) & 1) { |
| 934 |
gen_op_drotr(); |
| 935 |
opn = "drotr";
|
| 936 |
} else {
|
| 937 |
gen_op_dsrl(); |
| 938 |
opn = "dsrl";
|
| 939 |
} |
| 940 |
break;
|
| 941 |
case OPC_DSLL32:
|
| 942 |
gen_op_dsll32(); |
| 943 |
opn = "dsll32";
|
| 944 |
break;
|
| 945 |
case OPC_DSRA32:
|
| 946 |
gen_op_dsra32(); |
| 947 |
opn = "dsra32";
|
| 948 |
break;
|
| 949 |
case OPC_DSRL32:
|
| 950 |
if ((ctx->opcode >> 21) & 1) { |
| 951 |
gen_op_drotr32(); |
| 952 |
opn = "drotr32";
|
| 953 |
} else {
|
| 954 |
gen_op_dsrl32(); |
| 955 |
opn = "dsrl32";
|
| 956 |
} |
| 957 |
break;
|
| 958 |
#endif
|
| 959 |
default:
|
| 960 |
MIPS_INVAL("imm arith");
|
| 961 |
generate_exception(ctx, EXCP_RI); |
| 962 |
return;
|
| 963 |
} |
| 964 |
GEN_STORE_TN_REG(rt, T0); |
| 965 |
MIPS_DEBUG("%s %s, %s, %x", opn, regnames[rt], regnames[rs], uimm);
|
| 966 |
} |
| 967 |
|
| 968 |
/* Arithmetic */
|
| 969 |
static void gen_arith (DisasContext *ctx, uint32_t opc, |
| 970 |
int rd, int rs, int rt) |
| 971 |
{
|
| 972 |
const char *opn = "unk"; |
| 973 |
|
| 974 |
if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB |
| 975 |
&& opc != OPC_DADD && opc != OPC_DSUB) {
|
| 976 |
/* if no destination, treat it as a NOP
|
| 977 |
* For add & sub, we must generate the overflow exception when needed.
|
| 978 |
*/
|
| 979 |
MIPS_DEBUG("NOP");
|
| 980 |
return;
|
| 981 |
} |
| 982 |
GEN_LOAD_REG_TN(T0, rs); |
| 983 |
GEN_LOAD_REG_TN(T1, rt); |
| 984 |
switch (opc) {
|
| 985 |
case OPC_ADD:
|
| 986 |
save_cpu_state(ctx, 1);
|
| 987 |
gen_op_addo(); |
| 988 |
opn = "add";
|
| 989 |
break;
|
| 990 |
case OPC_ADDU:
|
| 991 |
gen_op_add(); |
| 992 |
opn = "addu";
|
| 993 |
break;
|
| 994 |
case OPC_SUB:
|
| 995 |
save_cpu_state(ctx, 1);
|
| 996 |
gen_op_subo(); |
| 997 |
opn = "sub";
|
| 998 |
break;
|
| 999 |
case OPC_SUBU:
|
| 1000 |
gen_op_sub(); |
| 1001 |
opn = "subu";
|
| 1002 |
break;
|
| 1003 |
#ifdef MIPS_HAS_MIPS64
|
| 1004 |
case OPC_DADD:
|
| 1005 |
save_cpu_state(ctx, 1);
|
| 1006 |
gen_op_daddo(); |
| 1007 |
opn = "dadd";
|
| 1008 |
break;
|
| 1009 |
case OPC_DADDU:
|
| 1010 |
gen_op_dadd(); |
| 1011 |
opn = "daddu";
|
| 1012 |
break;
|
| 1013 |
case OPC_DSUB:
|
| 1014 |
save_cpu_state(ctx, 1);
|
| 1015 |
gen_op_dsubo(); |
| 1016 |
opn = "dsub";
|
| 1017 |
break;
|
| 1018 |
case OPC_DSUBU:
|
| 1019 |
gen_op_dsub(); |
| 1020 |
opn = "dsubu";
|
| 1021 |
break;
|
| 1022 |
#endif
|
| 1023 |
case OPC_SLT:
|
| 1024 |
gen_op_lt(); |
| 1025 |
opn = "slt";
|
| 1026 |
break;
|
| 1027 |
case OPC_SLTU:
|
| 1028 |
gen_op_ltu(); |
| 1029 |
opn = "sltu";
|
| 1030 |
break;
|
| 1031 |
case OPC_AND:
|
| 1032 |
gen_op_and(); |
| 1033 |
opn = "and";
|
| 1034 |
break;
|
| 1035 |
case OPC_NOR:
|
| 1036 |
gen_op_nor(); |
| 1037 |
opn = "nor";
|
| 1038 |
break;
|
| 1039 |
case OPC_OR:
|
| 1040 |
gen_op_or(); |
| 1041 |
opn = "or";
|
| 1042 |
break;
|
| 1043 |
case OPC_XOR:
|
| 1044 |
gen_op_xor(); |
| 1045 |
opn = "xor";
|
| 1046 |
break;
|
| 1047 |
case OPC_MUL:
|
| 1048 |
gen_op_mul(); |
| 1049 |
opn = "mul";
|
| 1050 |
break;
|
| 1051 |
case OPC_MOVN:
|
| 1052 |
gen_op_movn(rd); |
| 1053 |
opn = "movn";
|
| 1054 |
goto print;
|
| 1055 |
case OPC_MOVZ:
|
| 1056 |
gen_op_movz(rd); |
| 1057 |
opn = "movz";
|
| 1058 |
goto print;
|
| 1059 |
case OPC_SLLV:
|
| 1060 |
gen_op_sllv(); |
| 1061 |
opn = "sllv";
|
| 1062 |
break;
|
| 1063 |
case OPC_SRAV:
|
| 1064 |
gen_op_srav(); |
| 1065 |
opn = "srav";
|
| 1066 |
break;
|
| 1067 |
case OPC_SRLV:
|
| 1068 |
if ((ctx->opcode >> 6) & 1) { |
| 1069 |
gen_op_rotrv(); |
| 1070 |
opn = "rotrv";
|
| 1071 |
} else {
|
| 1072 |
gen_op_srlv(); |
| 1073 |
opn = "srlv";
|
| 1074 |
} |
| 1075 |
break;
|
| 1076 |
#ifdef MIPS_HAS_MIPS64
|
| 1077 |
case OPC_DSLLV:
|
| 1078 |
gen_op_dsllv(); |
| 1079 |
opn = "dsllv";
|
| 1080 |
break;
|
| 1081 |
case OPC_DSRAV:
|
| 1082 |
gen_op_dsrav(); |
| 1083 |
opn = "dsrav";
|
| 1084 |
break;
|
| 1085 |
case OPC_DSRLV:
|
| 1086 |
if ((ctx->opcode >> 6) & 1) { |
| 1087 |
gen_op_drotrv(); |
| 1088 |
opn = "drotrv";
|
| 1089 |
} else {
|
| 1090 |
gen_op_dsrlv(); |
| 1091 |
opn = "dsrlv";
|
| 1092 |
} |
| 1093 |
break;
|
| 1094 |
#endif
|
| 1095 |
default:
|
| 1096 |
MIPS_INVAL("arith");
|
| 1097 |
generate_exception(ctx, EXCP_RI); |
| 1098 |
return;
|
| 1099 |
} |
| 1100 |
GEN_STORE_TN_REG(rd, T0); |
| 1101 |
print:
|
| 1102 |
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
|
| 1103 |
} |
| 1104 |
|
| 1105 |
/* Arithmetic on HI/LO registers */
|
| 1106 |
static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg) |
| 1107 |
{
|
| 1108 |
const char *opn = "unk"; |
| 1109 |
|
| 1110 |
if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) { |
| 1111 |
/* Treat as a NOP */
|
| 1112 |
MIPS_DEBUG("NOP");
|
| 1113 |
return;
|
| 1114 |
} |
| 1115 |
switch (opc) {
|
| 1116 |
case OPC_MFHI:
|
| 1117 |
gen_op_load_HI(); |
| 1118 |
GEN_STORE_TN_REG(reg, T0); |
| 1119 |
opn = "mfhi";
|
| 1120 |
break;
|
| 1121 |
case OPC_MFLO:
|
| 1122 |
gen_op_load_LO(); |
| 1123 |
GEN_STORE_TN_REG(reg, T0); |
| 1124 |
opn = "mflo";
|
| 1125 |
break;
|
| 1126 |
case OPC_MTHI:
|
| 1127 |
GEN_LOAD_REG_TN(T0, reg); |
| 1128 |
gen_op_store_HI(); |
| 1129 |
opn = "mthi";
|
| 1130 |
break;
|
| 1131 |
case OPC_MTLO:
|
| 1132 |
GEN_LOAD_REG_TN(T0, reg); |
| 1133 |
gen_op_store_LO(); |
| 1134 |
opn = "mtlo";
|
| 1135 |
break;
|
| 1136 |
default:
|
| 1137 |
MIPS_INVAL("HILO");
|
| 1138 |
generate_exception(ctx, EXCP_RI); |
| 1139 |
return;
|
| 1140 |
} |
| 1141 |
MIPS_DEBUG("%s %s", opn, regnames[reg]);
|
| 1142 |
} |
| 1143 |
|
| 1144 |
static void gen_muldiv (DisasContext *ctx, uint32_t opc, |
| 1145 |
int rs, int rt) |
| 1146 |
{
|
| 1147 |
const char *opn = "unk"; |
| 1148 |
|
| 1149 |
GEN_LOAD_REG_TN(T0, rs); |
| 1150 |
GEN_LOAD_REG_TN(T1, rt); |
| 1151 |
switch (opc) {
|
| 1152 |
case OPC_DIV:
|
| 1153 |
gen_op_div(); |
| 1154 |
opn = "div";
|
| 1155 |
break;
|
| 1156 |
case OPC_DIVU:
|
| 1157 |
gen_op_divu(); |
| 1158 |
opn = "divu";
|
| 1159 |
break;
|
| 1160 |
case OPC_MULT:
|
| 1161 |
gen_op_mult(); |
| 1162 |
opn = "mult";
|
| 1163 |
break;
|
| 1164 |
case OPC_MULTU:
|
| 1165 |
gen_op_multu(); |
| 1166 |
opn = "multu";
|
| 1167 |
break;
|
| 1168 |
#ifdef MIPS_HAS_MIPS64
|
| 1169 |
case OPC_DDIV:
|
| 1170 |
gen_op_ddiv(); |
| 1171 |
opn = "ddiv";
|
| 1172 |
break;
|
| 1173 |
case OPC_DDIVU:
|
| 1174 |
gen_op_ddivu(); |
| 1175 |
opn = "ddivu";
|
| 1176 |
break;
|
| 1177 |
case OPC_DMULT:
|
| 1178 |
gen_op_dmult(); |
| 1179 |
opn = "dmult";
|
| 1180 |
break;
|
| 1181 |
case OPC_DMULTU:
|
| 1182 |
gen_op_dmultu(); |
| 1183 |
opn = "dmultu";
|
| 1184 |
break;
|
| 1185 |
#endif
|
| 1186 |
case OPC_MADD:
|
| 1187 |
gen_op_madd(); |
| 1188 |
opn = "madd";
|
| 1189 |
break;
|
| 1190 |
case OPC_MADDU:
|
| 1191 |
gen_op_maddu(); |
| 1192 |
opn = "maddu";
|
| 1193 |
break;
|
| 1194 |
case OPC_MSUB:
|
| 1195 |
gen_op_msub(); |
| 1196 |
opn = "msub";
|
| 1197 |
break;
|
| 1198 |
case OPC_MSUBU:
|
| 1199 |
gen_op_msubu(); |
| 1200 |
opn = "msubu";
|
| 1201 |
break;
|
| 1202 |
default:
|
| 1203 |
MIPS_INVAL("mul/div");
|
| 1204 |
generate_exception(ctx, EXCP_RI); |
| 1205 |
return;
|
| 1206 |
} |
| 1207 |
MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
|
| 1208 |
} |
| 1209 |
|
| 1210 |
static void gen_cl (DisasContext *ctx, uint32_t opc, |
| 1211 |
int rd, int rs) |
| 1212 |
{
|
| 1213 |
const char *opn = "unk"; |
| 1214 |
if (rd == 0) { |
| 1215 |
/* Treat as a NOP */
|
| 1216 |
MIPS_DEBUG("NOP");
|
| 1217 |
return;
|
| 1218 |
} |
| 1219 |
GEN_LOAD_REG_TN(T0, rs); |
| 1220 |
switch (opc) {
|
| 1221 |
case OPC_CLO:
|
| 1222 |
gen_op_clo(); |
| 1223 |
opn = "clo";
|
| 1224 |
break;
|
| 1225 |
case OPC_CLZ:
|
| 1226 |
gen_op_clz(); |
| 1227 |
opn = "clz";
|
| 1228 |
break;
|
| 1229 |
#ifdef MIPS_HAS_MIPS64
|
| 1230 |
case OPC_DCLO:
|
| 1231 |
gen_op_dclo(); |
| 1232 |
opn = "dclo";
|
| 1233 |
break;
|
| 1234 |
case OPC_DCLZ:
|
| 1235 |
gen_op_dclz(); |
| 1236 |
opn = "dclz";
|
| 1237 |
break;
|
| 1238 |
#endif
|
| 1239 |
default:
|
| 1240 |
MIPS_INVAL("CLx");
|
| 1241 |
generate_exception(ctx, EXCP_RI); |
| 1242 |
return;
|
| 1243 |
} |
| 1244 |
gen_op_store_T0_gpr(rd); |
| 1245 |
MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
|
| 1246 |
} |
| 1247 |
|
| 1248 |
/* Traps */
|
| 1249 |
static void gen_trap (DisasContext *ctx, uint32_t opc, |
| 1250 |
int rs, int rt, int16_t imm) |
| 1251 |
{
|
| 1252 |
int cond;
|
| 1253 |
|
| 1254 |
cond = 0;
|
| 1255 |
/* Load needed operands */
|
| 1256 |
switch (opc) {
|
| 1257 |
case OPC_TEQ:
|
| 1258 |
case OPC_TGE:
|
| 1259 |
case OPC_TGEU:
|
| 1260 |
case OPC_TLT:
|
| 1261 |
case OPC_TLTU:
|
| 1262 |
case OPC_TNE:
|
| 1263 |
/* Compare two registers */
|
| 1264 |
if (rs != rt) {
|
| 1265 |
GEN_LOAD_REG_TN(T0, rs); |
| 1266 |
GEN_LOAD_REG_TN(T1, rt); |
| 1267 |
cond = 1;
|
| 1268 |
} |
| 1269 |
case OPC_TEQI:
|
| 1270 |
case OPC_TGEI:
|
| 1271 |
case OPC_TGEIU:
|
| 1272 |
case OPC_TLTI:
|
| 1273 |
case OPC_TLTIU:
|
| 1274 |
case OPC_TNEI:
|
| 1275 |
/* Compare register to immediate */
|
| 1276 |
if (rs != 0 || imm != 0) { |
| 1277 |
GEN_LOAD_REG_TN(T0, rs); |
| 1278 |
GEN_LOAD_IMM_TN(T1, (int32_t)imm); |
| 1279 |
cond = 1;
|
| 1280 |
} |
| 1281 |
break;
|
| 1282 |
} |
| 1283 |
if (cond == 0) { |
| 1284 |
switch (opc) {
|
| 1285 |
case OPC_TEQ: /* rs == rs */ |
| 1286 |
case OPC_TEQI: /* r0 == 0 */ |
| 1287 |
case OPC_TGE: /* rs >= rs */ |
| 1288 |
case OPC_TGEI: /* r0 >= 0 */ |
| 1289 |
case OPC_TGEU: /* rs >= rs unsigned */ |
| 1290 |
case OPC_TGEIU: /* r0 >= 0 unsigned */ |
| 1291 |
/* Always trap */
|
| 1292 |
gen_op_set_T0(1);
|
| 1293 |
break;
|
| 1294 |
case OPC_TLT: /* rs < rs */ |
| 1295 |
case OPC_TLTI: /* r0 < 0 */ |
| 1296 |
case OPC_TLTU: /* rs < rs unsigned */ |
| 1297 |
case OPC_TLTIU: /* r0 < 0 unsigned */ |
| 1298 |
case OPC_TNE: /* rs != rs */ |
| 1299 |
case OPC_TNEI: /* r0 != 0 */ |
| 1300 |
/* Never trap: treat as NOP */
|
| 1301 |
return;
|
| 1302 |
default:
|
| 1303 |
MIPS_INVAL("TRAP");
|
| 1304 |
generate_exception(ctx, EXCP_RI); |
| 1305 |
return;
|
| 1306 |
} |
| 1307 |
} else {
|
| 1308 |
switch (opc) {
|
| 1309 |
case OPC_TEQ:
|
| 1310 |
case OPC_TEQI:
|
| 1311 |
gen_op_eq(); |
| 1312 |
break;
|
| 1313 |
case OPC_TGE:
|
| 1314 |
case OPC_TGEI:
|
| 1315 |
gen_op_ge(); |
| 1316 |
break;
|
| 1317 |
case OPC_TGEU:
|
| 1318 |
case OPC_TGEIU:
|
| 1319 |
gen_op_geu(); |
| 1320 |
break;
|
| 1321 |
case OPC_TLT:
|
| 1322 |
case OPC_TLTI:
|
| 1323 |
gen_op_lt(); |
| 1324 |
break;
|
| 1325 |
case OPC_TLTU:
|
| 1326 |
case OPC_TLTIU:
|
| 1327 |
gen_op_ltu(); |
| 1328 |
break;
|
| 1329 |
case OPC_TNE:
|
| 1330 |
case OPC_TNEI:
|
| 1331 |
gen_op_ne(); |
| 1332 |
break;
|
| 1333 |
default:
|
| 1334 |
MIPS_INVAL("TRAP");
|
| 1335 |
generate_exception(ctx, EXCP_RI); |
| 1336 |
return;
|
| 1337 |
} |
| 1338 |
} |
| 1339 |
save_cpu_state(ctx, 1);
|
| 1340 |
gen_op_trap(); |
| 1341 |
ctx->bstate = BS_STOP; |
| 1342 |
} |
| 1343 |
|
| 1344 |
static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) |
| 1345 |
{
|
| 1346 |
TranslationBlock *tb; |
| 1347 |
tb = ctx->tb; |
| 1348 |
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
| 1349 |
if (n == 0) |
| 1350 |
gen_op_goto_tb0(TBPARAM(tb)); |
| 1351 |
else
|
| 1352 |
gen_op_goto_tb1(TBPARAM(tb)); |
| 1353 |
gen_op_save_pc(dest); |
| 1354 |
gen_op_set_T0((long)tb + n);
|
| 1355 |
gen_op_exit_tb(); |
| 1356 |
} else {
|
| 1357 |
gen_op_save_pc(dest); |
| 1358 |
gen_op_set_T0(0);
|
| 1359 |
gen_op_exit_tb(); |
| 1360 |
} |
| 1361 |
} |
| 1362 |
|
| 1363 |
/* Branches (before delay slot) */
|
| 1364 |
static void gen_compute_branch (DisasContext *ctx, uint32_t opc, |
| 1365 |
int rs, int rt, int32_t offset) |
| 1366 |
{
|
| 1367 |
target_ulong btarget; |
| 1368 |
int blink, bcond;
|
| 1369 |
|
| 1370 |
btarget = -1;
|
| 1371 |
blink = 0;
|
| 1372 |
bcond = 0;
|
| 1373 |
/* Load needed operands */
|
| 1374 |
switch (opc) {
|
| 1375 |
case OPC_BEQ:
|
| 1376 |
case OPC_BEQL:
|
| 1377 |
case OPC_BNE:
|
| 1378 |
case OPC_BNEL:
|
| 1379 |
/* Compare two registers */
|
| 1380 |
if (rs != rt) {
|
| 1381 |
GEN_LOAD_REG_TN(T0, rs); |
| 1382 |
GEN_LOAD_REG_TN(T1, rt); |
| 1383 |
bcond = 1;
|
| 1384 |
} |
| 1385 |
btarget = ctx->pc + 4 + offset;
|
| 1386 |
break;
|
| 1387 |
case OPC_BGEZ:
|
| 1388 |
case OPC_BGEZAL:
|
| 1389 |
case OPC_BGEZALL:
|
| 1390 |
case OPC_BGEZL:
|
| 1391 |
case OPC_BGTZ:
|
| 1392 |
case OPC_BGTZL:
|
| 1393 |
case OPC_BLEZ:
|
| 1394 |
case OPC_BLEZL:
|
| 1395 |
case OPC_BLTZ:
|
| 1396 |
case OPC_BLTZAL:
|
| 1397 |
case OPC_BLTZALL:
|
| 1398 |
case OPC_BLTZL:
|
| 1399 |
/* Compare to zero */
|
| 1400 |
if (rs != 0) { |
| 1401 |
gen_op_load_gpr_T0(rs); |
| 1402 |
bcond = 1;
|
| 1403 |
} |
| 1404 |
btarget = ctx->pc + 4 + offset;
|
| 1405 |
break;
|
| 1406 |
case OPC_J:
|
| 1407 |
case OPC_JAL:
|
| 1408 |
/* Jump to immediate */
|
| 1409 |
btarget = ((ctx->pc + 4) & 0xF0000000) | offset; |
| 1410 |
break;
|
| 1411 |
case OPC_JR:
|
| 1412 |
case OPC_JALR:
|
| 1413 |
/* Jump to register */
|
| 1414 |
if (offset != 0 && offset != 16) { |
| 1415 |
/* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the
|
| 1416 |
others are reserved. */
|
| 1417 |
generate_exception(ctx, EXCP_RI); |
| 1418 |
return;
|
| 1419 |
} |
| 1420 |
GEN_LOAD_REG_TN(T2, rs); |
| 1421 |
break;
|
| 1422 |
default:
|
| 1423 |
MIPS_INVAL("branch/jump");
|
| 1424 |
generate_exception(ctx, EXCP_RI); |
| 1425 |
return;
|
| 1426 |
} |
| 1427 |
if (bcond == 0) { |
| 1428 |
/* No condition to be computed */
|
| 1429 |
switch (opc) {
|
| 1430 |
case OPC_BEQ: /* rx == rx */ |
| 1431 |
case OPC_BEQL: /* rx == rx likely */ |
| 1432 |
case OPC_BGEZ: /* 0 >= 0 */ |
| 1433 |
case OPC_BGEZL: /* 0 >= 0 likely */ |
| 1434 |
case OPC_BLEZ: /* 0 <= 0 */ |
| 1435 |
case OPC_BLEZL: /* 0 <= 0 likely */ |
| 1436 |
/* Always take */
|
| 1437 |
ctx->hflags |= MIPS_HFLAG_B; |
| 1438 |
MIPS_DEBUG("balways");
|
| 1439 |
break;
|
| 1440 |
case OPC_BGEZAL: /* 0 >= 0 */ |
| 1441 |
case OPC_BGEZALL: /* 0 >= 0 likely */ |
| 1442 |
/* Always take and link */
|
| 1443 |
blink = 31;
|
| 1444 |
ctx->hflags |= MIPS_HFLAG_B; |
| 1445 |
MIPS_DEBUG("balways and link");
|
| 1446 |
break;
|
| 1447 |
case OPC_BNE: /* rx != rx */ |
| 1448 |
case OPC_BGTZ: /* 0 > 0 */ |
| 1449 |
case OPC_BLTZ: /* 0 < 0 */ |
| 1450 |
/* Treated as NOP */
|
| 1451 |
MIPS_DEBUG("bnever (NOP)");
|
| 1452 |
return;
|
| 1453 |
case OPC_BLTZAL: /* 0 < 0 */ |
| 1454 |
gen_op_set_T0(ctx->pc + 8);
|
| 1455 |
gen_op_store_T0_gpr(31);
|
| 1456 |
return;
|
| 1457 |
case OPC_BLTZALL: /* 0 < 0 likely */ |
| 1458 |
gen_op_set_T0(ctx->pc + 8);
|
| 1459 |
gen_op_store_T0_gpr(31);
|
| 1460 |
gen_goto_tb(ctx, 0, ctx->pc + 4); |
| 1461 |
return;
|
| 1462 |
case OPC_BNEL: /* rx != rx likely */ |
| 1463 |
case OPC_BGTZL: /* 0 > 0 likely */ |
| 1464 |
case OPC_BLTZL: /* 0 < 0 likely */ |
| 1465 |
/* Skip the instruction in the delay slot */
|
| 1466 |
MIPS_DEBUG("bnever and skip");
|
| 1467 |
gen_goto_tb(ctx, 0, ctx->pc + 4); |
| 1468 |
return;
|
| 1469 |
case OPC_J:
|
| 1470 |
ctx->hflags |= MIPS_HFLAG_B; |
| 1471 |
MIPS_DEBUG("j %08x", btarget);
|
| 1472 |
break;
|
| 1473 |
case OPC_JAL:
|
| 1474 |
blink = 31;
|
| 1475 |
ctx->hflags |= MIPS_HFLAG_B; |
| 1476 |
MIPS_DEBUG("jal %08x", btarget);
|
| 1477 |
break;
|
| 1478 |
case OPC_JR:
|
| 1479 |
ctx->hflags |= MIPS_HFLAG_BR; |
| 1480 |
MIPS_DEBUG("jr %s", regnames[rs]);
|
| 1481 |
break;
|
| 1482 |
case OPC_JALR:
|
| 1483 |
blink = rt; |
| 1484 |
ctx->hflags |= MIPS_HFLAG_BR; |
| 1485 |
MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
|
| 1486 |
break;
|
| 1487 |
default:
|
| 1488 |
MIPS_INVAL("branch/jump");
|
| 1489 |
generate_exception(ctx, EXCP_RI); |
| 1490 |
return;
|
| 1491 |
} |
| 1492 |
} else {
|
| 1493 |
switch (opc) {
|
| 1494 |
case OPC_BEQ:
|
| 1495 |
gen_op_eq(); |
| 1496 |
MIPS_DEBUG("beq %s, %s, %08x",
|
| 1497 |
regnames[rs], regnames[rt], btarget); |
| 1498 |
goto not_likely;
|
| 1499 |
case OPC_BEQL:
|
| 1500 |
gen_op_eq(); |
| 1501 |
MIPS_DEBUG("beql %s, %s, %08x",
|
| 1502 |
regnames[rs], regnames[rt], btarget); |
| 1503 |
goto likely;
|
| 1504 |
case OPC_BNE:
|
| 1505 |
gen_op_ne(); |
| 1506 |
MIPS_DEBUG("bne %s, %s, %08x",
|
| 1507 |
regnames[rs], regnames[rt], btarget); |
| 1508 |
goto not_likely;
|
| 1509 |
case OPC_BNEL:
|
| 1510 |
gen_op_ne(); |
| 1511 |
MIPS_DEBUG("bnel %s, %s, %08x",
|
| 1512 |
regnames[rs], regnames[rt], btarget); |
| 1513 |
goto likely;
|
| 1514 |
case OPC_BGEZ:
|
| 1515 |
gen_op_gez(); |
| 1516 |
MIPS_DEBUG("bgez %s, %08x", regnames[rs], btarget);
|
| 1517 |
goto not_likely;
|
| 1518 |
case OPC_BGEZL:
|
| 1519 |
gen_op_gez(); |
| 1520 |
MIPS_DEBUG("bgezl %s, %08x", regnames[rs], btarget);
|
| 1521 |
goto likely;
|
| 1522 |
case OPC_BGEZAL:
|
| 1523 |
gen_op_gez(); |
| 1524 |
MIPS_DEBUG("bgezal %s, %08x", regnames[rs], btarget);
|
| 1525 |
blink = 31;
|
| 1526 |
goto not_likely;
|
| 1527 |
case OPC_BGEZALL:
|
| 1528 |
gen_op_gez(); |
| 1529 |
blink = 31;
|
| 1530 |
MIPS_DEBUG("bgezall %s, %08x", regnames[rs], btarget);
|
| 1531 |
goto likely;
|
| 1532 |
case OPC_BGTZ:
|
| 1533 |
gen_op_gtz(); |
| 1534 |
MIPS_DEBUG("bgtz %s, %08x", regnames[rs], btarget);
|
| 1535 |
goto not_likely;
|
| 1536 |
case OPC_BGTZL:
|
| 1537 |
gen_op_gtz(); |
| 1538 |
MIPS_DEBUG("bgtzl %s, %08x", regnames[rs], btarget);
|
| 1539 |
goto likely;
|
| 1540 |
case OPC_BLEZ:
|
| 1541 |
gen_op_lez(); |
| 1542 |
MIPS_DEBUG("blez %s, %08x", regnames[rs], btarget);
|
| 1543 |
goto not_likely;
|
| 1544 |
case OPC_BLEZL:
|
| 1545 |
gen_op_lez(); |
| 1546 |
MIPS_DEBUG("blezl %s, %08x", regnames[rs], btarget);
|
| 1547 |
goto likely;
|
| 1548 |
case OPC_BLTZ:
|
| 1549 |
gen_op_ltz(); |
| 1550 |
MIPS_DEBUG("bltz %s, %08x", regnames[rs], btarget);
|
| 1551 |
goto not_likely;
|
| 1552 |
case OPC_BLTZL:
|
| 1553 |
gen_op_ltz(); |
| 1554 |
MIPS_DEBUG("bltzl %s, %08x", regnames[rs], btarget);
|
| 1555 |
goto likely;
|
| 1556 |
case OPC_BLTZAL:
|
| 1557 |
gen_op_ltz(); |
| 1558 |
blink = 31;
|
| 1559 |
MIPS_DEBUG("bltzal %s, %08x", regnames[rs], btarget);
|
| 1560 |
not_likely:
|
| 1561 |
ctx->hflags |= MIPS_HFLAG_BC; |
| 1562 |
break;
|
| 1563 |
case OPC_BLTZALL:
|
| 1564 |
gen_op_ltz(); |
| 1565 |
blink = 31;
|
| 1566 |
MIPS_DEBUG("bltzall %s, %08x", regnames[rs], btarget);
|
| 1567 |
likely:
|
| 1568 |
ctx->hflags |= MIPS_HFLAG_BL; |
| 1569 |
break;
|
| 1570 |
} |
| 1571 |
gen_op_set_bcond(); |
| 1572 |
} |
| 1573 |
MIPS_DEBUG("enter ds: link %d cond %02x target %08x",
|
| 1574 |
blink, ctx->hflags, btarget); |
| 1575 |
ctx->btarget = btarget; |
| 1576 |
if (blink > 0) { |
| 1577 |
gen_op_set_T0(ctx->pc + 8);
|
| 1578 |
gen_op_store_T0_gpr(blink); |
| 1579 |
} |
| 1580 |
return;
|
| 1581 |
} |
| 1582 |
|
| 1583 |
/* special3 bitfield operations */
|
| 1584 |
static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt, |
| 1585 |
int rs, int lsb, int msb) |
| 1586 |
{
|
| 1587 |
GEN_LOAD_REG_TN(T1, rs); |
| 1588 |
switch (opc) {
|
| 1589 |
case OPC_EXT:
|
| 1590 |
if (lsb + msb > 31) |
| 1591 |
goto fail;
|
| 1592 |
gen_op_ext(lsb, msb + 1);
|
| 1593 |
break;
|
| 1594 |
case OPC_DEXTM:
|
| 1595 |
if (lsb + msb > 63) |
| 1596 |
goto fail;
|
| 1597 |
gen_op_ext(lsb, msb + 1 + 32); |
| 1598 |
break;
|
| 1599 |
case OPC_DEXTU:
|
| 1600 |
if (lsb + msb > 63) |
| 1601 |
goto fail;
|
| 1602 |
gen_op_ext(lsb + 32, msb + 1); |
| 1603 |
break;
|
| 1604 |
case OPC_DEXT:
|
| 1605 |
gen_op_ext(lsb, msb + 1);
|
| 1606 |
break;
|
| 1607 |
case OPC_INS:
|
| 1608 |
if (lsb > msb)
|
| 1609 |
goto fail;
|
| 1610 |
GEN_LOAD_REG_TN(T2, rt); |
| 1611 |
gen_op_ins(lsb, msb - lsb + 1);
|
| 1612 |
break;
|
| 1613 |
case OPC_DINSM:
|
| 1614 |
if (lsb > msb)
|
| 1615 |
goto fail;
|
| 1616 |
GEN_LOAD_REG_TN(T2, rt); |
| 1617 |
gen_op_ins(lsb, msb - lsb + 1 + 32); |
| 1618 |
break;
|
| 1619 |
case OPC_DINSU:
|
| 1620 |
if (lsb > msb)
|
| 1621 |
goto fail;
|
| 1622 |
GEN_LOAD_REG_TN(T2, rt); |
| 1623 |
gen_op_ins(lsb + 32, msb - lsb + 1); |
| 1624 |
break;
|
| 1625 |
case OPC_DINS:
|
| 1626 |
if (lsb > msb)
|
| 1627 |
goto fail;
|
| 1628 |
GEN_LOAD_REG_TN(T2, rt); |
| 1629 |
gen_op_ins(lsb, msb - lsb + 1);
|
| 1630 |
break;
|
| 1631 |
default:
|
| 1632 |
fail:
|
| 1633 |
MIPS_INVAL("bitops");
|
| 1634 |
generate_exception(ctx, EXCP_RI); |
| 1635 |
return;
|
| 1636 |
} |
| 1637 |
GEN_STORE_TN_REG(rt, T0); |
| 1638 |
} |
| 1639 |
|
| 1640 |
/* CP0 (MMU and control) */
|
| 1641 |
static void gen_mfc0 (DisasContext *ctx, int reg, int sel) |
| 1642 |
{
|
| 1643 |
const char *rn = "invalid"; |
| 1644 |
|
| 1645 |
switch (reg) {
|
| 1646 |
case 0: |
| 1647 |
switch (sel) {
|
| 1648 |
case 0: |
| 1649 |
gen_op_mfc0_index(); |
| 1650 |
rn = "Index";
|
| 1651 |
break;
|
| 1652 |
case 1: |
| 1653 |
// gen_op_mfc0_mvpcontrol(); /* MT ASE */
|
| 1654 |
rn = "MVPControl";
|
| 1655 |
// break;
|
| 1656 |
case 2: |
| 1657 |
// gen_op_mfc0_mvpconf0(); /* MT ASE */
|
| 1658 |
rn = "MVPConf0";
|
| 1659 |
// break;
|
| 1660 |
case 3: |
| 1661 |
// gen_op_mfc0_mvpconf1(); /* MT ASE */
|
| 1662 |
rn = "MVPConf1";
|
| 1663 |
// break;
|
| 1664 |
default:
|
| 1665 |
goto die;
|
| 1666 |
} |
| 1667 |
break;
|
| 1668 |
case 1: |
| 1669 |
switch (sel) {
|
| 1670 |
case 0: |
| 1671 |
gen_op_mfc0_random(); |
| 1672 |
rn = "Random";
|
| 1673 |
break;
|
| 1674 |
case 1: |
| 1675 |
// gen_op_mfc0_vpecontrol(); /* MT ASE */
|
| 1676 |
rn = "VPEControl";
|
| 1677 |
// break;
|
| 1678 |
case 2: |
| 1679 |
// gen_op_mfc0_vpeconf0(); /* MT ASE */
|
| 1680 |
rn = "VPEConf0";
|
| 1681 |
// break;
|
| 1682 |
case 3: |
| 1683 |
// gen_op_mfc0_vpeconf1(); /* MT ASE */
|
| 1684 |
rn = "VPEConf1";
|
| 1685 |
// break;
|
| 1686 |
case 4: |
| 1687 |
// gen_op_mfc0_YQMask(); /* MT ASE */
|
| 1688 |
rn = "YQMask";
|
| 1689 |
// break;
|
| 1690 |
case 5: |
| 1691 |
// gen_op_mfc0_vpeschedule(); /* MT ASE */
|
| 1692 |
rn = "VPESchedule";
|
| 1693 |
// break;
|
| 1694 |
case 6: |
| 1695 |
// gen_op_mfc0_vpeschefback(); /* MT ASE */
|
| 1696 |
rn = "VPEScheFBack";
|
| 1697 |
// break;
|
| 1698 |
case 7: |
| 1699 |
// gen_op_mfc0_vpeopt(); /* MT ASE */
|
| 1700 |
rn = "VPEOpt";
|
| 1701 |
// break;
|
| 1702 |
default:
|
| 1703 |
goto die;
|
| 1704 |
} |
| 1705 |
break;
|
| 1706 |
case 2: |
| 1707 |
switch (sel) {
|
| 1708 |
case 0: |
| 1709 |
gen_op_mfc0_entrylo0(); |
| 1710 |
rn = "EntryLo0";
|
| 1711 |
break;
|
| 1712 |
case 1: |
| 1713 |
// gen_op_mfc0_tcstatus(); /* MT ASE */
|
| 1714 |
rn = "TCStatus";
|
| 1715 |
// break;
|
| 1716 |
case 2: |
| 1717 |
// gen_op_mfc0_tcbind(); /* MT ASE */
|
| 1718 |
rn = "TCBind";
|
| 1719 |
// break;
|
| 1720 |
case 3: |
| 1721 |
// gen_op_mfc0_tcrestart(); /* MT ASE */
|
| 1722 |
rn = "TCRestart";
|
| 1723 |
// break;
|
| 1724 |
case 4: |
| 1725 |
// gen_op_mfc0_tchalt(); /* MT ASE */
|
| 1726 |
rn = "TCHalt";
|
| 1727 |
// break;
|
| 1728 |
case 5: |
| 1729 |
// gen_op_mfc0_tccontext(); /* MT ASE */
|
| 1730 |
rn = "TCContext";
|
| 1731 |
// break;
|
| 1732 |
case 6: |
| 1733 |
// gen_op_mfc0_tcschedule(); /* MT ASE */
|
| 1734 |
rn = "TCSchedule";
|
| 1735 |
// break;
|
| 1736 |
case 7: |
| 1737 |
// gen_op_mfc0_tcschefback(); /* MT ASE */
|
| 1738 |
rn = "TCScheFBack";
|
| 1739 |
// break;
|
| 1740 |
default:
|
| 1741 |
goto die;
|
| 1742 |
} |
| 1743 |
break;
|
| 1744 |
case 3: |
| 1745 |
switch (sel) {
|
| 1746 |
case 0: |
| 1747 |
gen_op_mfc0_entrylo1(); |
| 1748 |
rn = "EntryLo1";
|
| 1749 |
break;
|
| 1750 |
default:
|
| 1751 |
goto die;
|
| 1752 |
} |
| 1753 |
break;
|
| 1754 |
case 4: |
| 1755 |
switch (sel) {
|
| 1756 |
case 0: |
| 1757 |
gen_op_mfc0_context(); |
| 1758 |
rn = "Context";
|
| 1759 |
break;
|
| 1760 |
case 1: |
| 1761 |
// gen_op_mfc0_contextconfig(); /* SmartMIPS ASE */
|
| 1762 |
rn = "ContextConfig";
|
| 1763 |
// break;
|
| 1764 |
default:
|
| 1765 |
goto die;
|
| 1766 |
} |
| 1767 |
break;
|
| 1768 |
case 5: |
| 1769 |
switch (sel) {
|
| 1770 |
case 0: |
| 1771 |
gen_op_mfc0_pagemask(); |
| 1772 |
rn = "PageMask";
|
| 1773 |
break;
|
| 1774 |
case 1: |
| 1775 |
gen_op_mfc0_pagegrain(); |
| 1776 |
rn = "PageGrain";
|
| 1777 |
break;
|
| 1778 |
default:
|
| 1779 |
goto die;
|
| 1780 |
} |
| 1781 |
break;
|
| 1782 |
case 6: |
| 1783 |
switch (sel) {
|
| 1784 |
case 0: |
| 1785 |
gen_op_mfc0_wired(); |
| 1786 |
rn = "Wired";
|
| 1787 |
break;
|
| 1788 |
case 1: |
| 1789 |
// gen_op_mfc0_srsconf0(); /* shadow registers */
|
| 1790 |
rn = "SRSConf0";
|
| 1791 |
// break;
|
| 1792 |
case 2: |
| 1793 |
// gen_op_mfc0_srsconf1(); /* shadow registers */
|
| 1794 |
rn = "SRSConf1";
|
| 1795 |
// break;
|
| 1796 |
case 3: |
| 1797 |
// gen_op_mfc0_srsconf2(); /* shadow registers */
|
| 1798 |
rn = "SRSConf2";
|
| 1799 |
// break;
|
| 1800 |
case 4: |
| 1801 |
// gen_op_mfc0_srsconf3(); /* shadow registers */
|
| 1802 |
rn = "SRSConf3";
|
| 1803 |
// break;
|
| 1804 |
case 5: |
| 1805 |
// gen_op_mfc0_srsconf4(); /* shadow registers */
|
| 1806 |
rn = "SRSConf4";
|
| 1807 |
// break;
|
| 1808 |
default:
|
| 1809 |
goto die;
|
| 1810 |
} |
| 1811 |
break;
|
| 1812 |
case 7: |
| 1813 |
switch (sel) {
|
| 1814 |
case 0: |
| 1815 |
gen_op_mfc0_hwrena(); |
| 1816 |
rn = "HWREna";
|
| 1817 |
break;
|
| 1818 |
default:
|
| 1819 |
goto die;
|
| 1820 |
} |
| 1821 |
break;
|
| 1822 |
case 8: |
| 1823 |
switch (sel) {
|
| 1824 |
case 0: |
| 1825 |
gen_op_mfc0_badvaddr(); |
| 1826 |
rn = "BadVaddr";
|
| 1827 |
break;
|
| 1828 |
default:
|
| 1829 |
goto die;
|
| 1830 |
} |
| 1831 |
break;
|
| 1832 |
case 9: |
| 1833 |
switch (sel) {
|
| 1834 |
case 0: |
| 1835 |
gen_op_mfc0_count(); |
| 1836 |
rn = "Count";
|
| 1837 |
break;
|
| 1838 |
/* 6,7 are implementation dependent */
|
| 1839 |
default:
|
| 1840 |
goto die;
|
| 1841 |
} |
| 1842 |
break;
|
| 1843 |
case 10: |
| 1844 |
switch (sel) {
|
| 1845 |
case 0: |
| 1846 |
gen_op_mfc0_entryhi(); |
| 1847 |
rn = "EntryHi";
|
| 1848 |
break;
|
| 1849 |
default:
|
| 1850 |
goto die;
|
| 1851 |
} |
| 1852 |
break;
|
| 1853 |
case 11: |
| 1854 |
switch (sel) {
|
| 1855 |
case 0: |
| 1856 |
gen_op_mfc0_compare(); |
| 1857 |
rn = "Compare";
|
| 1858 |
break;
|
| 1859 |
/* 6,7 are implementation dependent */
|
| 1860 |
default:
|
| 1861 |
goto die;
|
| 1862 |
} |
| 1863 |
break;
|
| 1864 |
case 12: |
| 1865 |
switch (sel) {
|
| 1866 |
case 0: |
| 1867 |
gen_op_mfc0_status(); |
| 1868 |
rn = "Status";
|
| 1869 |
break;
|
| 1870 |
case 1: |
| 1871 |
gen_op_mfc0_intctl(); |
| 1872 |
rn = "IntCtl";
|
| 1873 |
break;
|
| 1874 |
case 2: |
| 1875 |
gen_op_mfc0_srsctl(); |
| 1876 |
rn = "SRSCtl";
|
| 1877 |
break;
|
| 1878 |
case 3: |
| 1879 |
// gen_op_mfc0_srsmap(); /* shadow registers */
|
| 1880 |
rn = "SRSMap";
|
| 1881 |
// break;
|
| 1882 |
default:
|
| 1883 |
goto die;
|
| 1884 |
} |
| 1885 |
break;
|
| 1886 |
case 13: |
| 1887 |
switch (sel) {
|
| 1888 |
case 0: |
| 1889 |
gen_op_mfc0_cause(); |
| 1890 |
rn = "Cause";
|
| 1891 |
break;
|
| 1892 |
default:
|
| 1893 |
goto die;
|
| 1894 |
} |
| 1895 |
break;
|
| 1896 |
case 14: |
| 1897 |
switch (sel) {
|
| 1898 |
case 0: |
| 1899 |
gen_op_mfc0_epc(); |
| 1900 |
rn = "EPC";
|
| 1901 |
break;
|
| 1902 |
default:
|
| 1903 |
goto die;
|
| 1904 |
} |
| 1905 |
break;
|
| 1906 |
case 15: |
| 1907 |
switch (sel) {
|
| 1908 |
case 0: |
| 1909 |
gen_op_mfc0_prid(); |
| 1910 |
rn = "PRid";
|
| 1911 |
break;
|
| 1912 |
case 1: |
| 1913 |
gen_op_mfc0_ebase(); |
| 1914 |
rn = "EBase";
|
| 1915 |
break;
|
| 1916 |
default:
|
| 1917 |
goto die;
|
| 1918 |
} |
| 1919 |
break;
|
| 1920 |
case 16: |
| 1921 |
switch (sel) {
|
| 1922 |
case 0: |
| 1923 |
gen_op_mfc0_config0(); |
| 1924 |
rn = "Config";
|
| 1925 |
break;
|
| 1926 |
case 1: |
| 1927 |
gen_op_mfc0_config1(); |
| 1928 |
rn = "Config1";
|
| 1929 |
break;
|
| 1930 |
case 2: |
| 1931 |
gen_op_mfc0_config2(); |
| 1932 |
rn = "Config2";
|
| 1933 |
break;
|
| 1934 |
case 3: |
| 1935 |
gen_op_mfc0_config3(); |
| 1936 |
rn = "Config3";
|
| 1937 |
break;
|
| 1938 |
/* 6,7 are implementation dependent */
|
| 1939 |
default:
|
| 1940 |
goto die;
|
| 1941 |
} |
| 1942 |
break;
|
| 1943 |
case 17: |
| 1944 |
switch (sel) {
|
| 1945 |
case 0: |
| 1946 |
gen_op_mfc0_lladdr(); |
| 1947 |
rn = "LLAddr";
|
| 1948 |
break;
|
| 1949 |
default:
|
| 1950 |
goto die;
|
| 1951 |
} |
| 1952 |
break;
|
| 1953 |
case 18: |
| 1954 |
switch (sel) {
|
| 1955 |
case 0: |
| 1956 |
gen_op_mfc0_watchlo0(); |
| 1957 |
rn = "WatchLo";
|
| 1958 |
break;
|
| 1959 |
case 1: |
| 1960 |
// gen_op_mfc0_watchlo1();
|
| 1961 |
rn = "WatchLo1";
|
| 1962 |
// break;
|
| 1963 |
case 2: |
| 1964 |
// gen_op_mfc0_watchlo2();
|
| 1965 |
rn = "WatchLo2";
|
| 1966 |
// break;
|
| 1967 |
case 3: |
| 1968 |
// gen_op_mfc0_watchlo3();
|
| 1969 |
rn = "WatchLo3";
|
| 1970 |
// break;
|
| 1971 |
case 4: |
| 1972 |
// gen_op_mfc0_watchlo4();
|
| 1973 |
rn = "WatchLo4";
|
| 1974 |
// break;
|
| 1975 |
case 5: |
| 1976 |
// gen_op_mfc0_watchlo5();
|
| 1977 |
rn = "WatchLo5";
|
| 1978 |
// break;
|
| 1979 |
case 6: |
| 1980 |
// gen_op_mfc0_watchlo6();
|
| 1981 |
rn = "WatchLo6";
|
| 1982 |
// break;
|
| 1983 |
case 7: |
| 1984 |
// gen_op_mfc0_watchlo7();
|
| 1985 |
rn = "WatchLo7";
|
| 1986 |
// break;
|
| 1987 |
default:
|
| 1988 |
goto die;
|
| 1989 |
} |
| 1990 |
break;
|
| 1991 |
case 19: |
| 1992 |
switch (sel) {
|
| 1993 |
case 0: |
| 1994 |
gen_op_mfc0_watchhi0(); |
| 1995 |
rn = "WatchHi";
|
| 1996 |
break;
|
| 1997 |
case 1: |
| 1998 |
// gen_op_mfc0_watchhi1();
|
| 1999 |
rn = "WatchHi1";
|
| 2000 |
// break;
|
| 2001 |
case 2: |
| 2002 |
// gen_op_mfc0_watchhi2();
|
| 2003 |
rn = "WatchHi2";
|
| 2004 |
// break;
|
| 2005 |
case 3: |
| 2006 |
// gen_op_mfc0_watchhi3();
|
| 2007 |
rn = "WatchHi3";
|
| 2008 |
// break;
|
| 2009 |
case 4: |
| 2010 |
// gen_op_mfc0_watchhi4();
|
| 2011 |
rn = "WatchHi4";
|
| 2012 |
// break;
|
| 2013 |
case 5: |
| 2014 |
// gen_op_mfc0_watchhi5();
|
| 2015 |
rn = "WatchHi5";
|
| 2016 |
// break;
|
| 2017 |
case 6: |
| 2018 |
// gen_op_mfc0_watchhi6();
|
| 2019 |
rn = "WatchHi6";
|
| 2020 |
// break;
|
| 2021 |
case 7: |
| 2022 |
// gen_op_mfc0_watchhi7();
|
| 2023 |
rn = "WatchHi7";
|
| 2024 |
// break;
|
| 2025 |
default:
|
| 2026 |
goto die;
|
| 2027 |
} |
| 2028 |
break;
|
| 2029 |
case 20: |
| 2030 |
switch (sel) {
|
| 2031 |
case 0: |
| 2032 |
/* 64 bit MMU only */
|
| 2033 |
gen_op_mfc0_xcontext(); |
| 2034 |
rn = "XContext";
|
| 2035 |
break;
|
| 2036 |
default:
|
| 2037 |
goto die;
|
| 2038 |
} |
| 2039 |
break;
|
| 2040 |
case 21: |
| 2041 |
/* Officially reserved, but sel 0 is used for R1x000 framemask */
|
| 2042 |
switch (sel) {
|
| 2043 |
case 0: |
| 2044 |
gen_op_mfc0_framemask(); |
| 2045 |
rn = "Framemask";
|
| 2046 |
break;
|
| 2047 |
default:
|
| 2048 |
goto die;
|
| 2049 |
} |
| 2050 |
break;
|
| 2051 |
case 22: |
| 2052 |
/* ignored */
|
| 2053 |
rn = "'Diagnostic"; /* implementation dependent */ |
| 2054 |
break;
|
| 2055 |
case 23: |
| 2056 |
switch (sel) {
|
| 2057 |
case 0: |
| 2058 |
gen_op_mfc0_debug(); /* EJTAG support */
|
| 2059 |
rn = "Debug";
|
| 2060 |
break;
|
| 2061 |
case 1: |
| 2062 |
// gen_op_mfc0_tracecontrol(); /* PDtrace support */
|
| 2063 |
rn = "TraceControl";
|
| 2064 |
// break;
|
| 2065 |
case 2: |
| 2066 |
// gen_op_mfc0_tracecontrol2(); /* PDtrace support */
|
| 2067 |
rn = "TraceControl2";
|
| 2068 |
// break;
|
| 2069 |
case 3: |
| 2070 |
// gen_op_mfc0_usertracedata(); /* PDtrace support */
|
| 2071 |
rn = "UserTraceData";
|
| 2072 |
// break;
|
| 2073 |
case 4: |
| 2074 |
// gen_op_mfc0_debug(); /* PDtrace support */
|
| 2075 |
rn = "TraceBPC";
|
| 2076 |
// break;
|
| 2077 |
default:
|
| 2078 |
goto die;
|
| 2079 |
} |
| 2080 |
break;
|
| 2081 |
case 24: |
| 2082 |
switch (sel) {
|
| 2083 |
case 0: |
| 2084 |
gen_op_mfc0_depc(); /* EJTAG support */
|
| 2085 |
rn = "DEPC";
|
| 2086 |
break;
|
| 2087 |
default:
|
| 2088 |
goto die;
|
| 2089 |
} |
| 2090 |
break;
|
| 2091 |
case 25: |
| 2092 |
switch (sel) {
|
| 2093 |
case 0: |
| 2094 |
gen_op_mfc0_performance0(); |
| 2095 |
rn = "Performance0";
|
| 2096 |
break;
|
| 2097 |
case 1: |
| 2098 |
// gen_op_mfc0_performance1();
|
| 2099 |
rn = "Performance1";
|
| 2100 |
// break;
|
| 2101 |
case 2: |
| 2102 |
// gen_op_mfc0_performance2();
|
| 2103 |
rn = "Performance2";
|
| 2104 |
// break;
|
| 2105 |
case 3: |
| 2106 |
// gen_op_mfc0_performance3();
|
| 2107 |
rn = "Performance3";
|
| 2108 |
// break;
|
| 2109 |
case 4: |
| 2110 |
// gen_op_mfc0_performance4();
|
| 2111 |
rn = "Performance4";
|
| 2112 |
// break;
|
| 2113 |
case 5: |
| 2114 |
// gen_op_mfc0_performance5();
|
| 2115 |
rn = "Performance5";
|
| 2116 |
// break;
|
| 2117 |
case 6: |
| 2118 |
// gen_op_mfc0_performance6();
|
| 2119 |
rn = "Performance6";
|
| 2120 |
// break;
|
| 2121 |
case 7: |
| 2122 |
// gen_op_mfc0_performance7();
|
| 2123 |
rn = "Performance7";
|
| 2124 |
// break;
|
| 2125 |
default:
|
| 2126 |
goto die;
|
| 2127 |
} |
| 2128 |
break;
|
| 2129 |
case 26: |
| 2130 |
rn = "ECC";
|
| 2131 |
break;
|
| 2132 |
case 27: |
| 2133 |
switch (sel) {
|
| 2134 |
/* ignored */
|
| 2135 |
case 0 ... 3: |
| 2136 |
rn = "CacheErr";
|
| 2137 |
break;
|
| 2138 |
default:
|
| 2139 |
goto die;
|
| 2140 |
} |
| 2141 |
break;
|
| 2142 |
case 28: |
| 2143 |
switch (sel) {
|
| 2144 |
case 0: |
| 2145 |
case 2: |
| 2146 |
case 4: |
| 2147 |
case 6: |
| 2148 |
gen_op_mfc0_taglo(); |
| 2149 |
rn = "TagLo";
|
| 2150 |
break;
|
| 2151 |
case 1: |
| 2152 |
case 3: |
| 2153 |
case 5: |
| 2154 |
case 7: |
| 2155 |
gen_op_mfc0_datalo(); |
| 2156 |
rn = "DataLo";
|
| 2157 |
break;
|
| 2158 |
default:
|
| 2159 |
goto die;
|
| 2160 |
} |
| 2161 |
break;
|
| 2162 |
case 29: |
| 2163 |
switch (sel) {
|
| 2164 |
case 0: |
| 2165 |
case 2: |
| 2166 |
case 4: |
| 2167 |
case 6: |
| 2168 |
gen_op_mfc0_taghi(); |
| 2169 |
rn = "TagHi";
|
| 2170 |
break;
|
| 2171 |
case 1: |
| 2172 |
case 3: |
| 2173 |
case 5: |
| 2174 |
case 7: |
| 2175 |
gen_op_mfc0_datahi(); |
| 2176 |
rn = "DataHi";
|
| 2177 |
break;
|
| 2178 |
default:
|
| 2179 |
goto die;
|
| 2180 |
} |
| 2181 |
break;
|
| 2182 |
case 30: |
| 2183 |
switch (sel) {
|
| 2184 |
case 0: |
| 2185 |
gen_op_mfc0_errorepc(); |
| 2186 |
rn = "ErrorEPC";
|
| 2187 |
break;
|
| 2188 |
default:
|
| 2189 |
goto die;
|
| 2190 |
} |
| 2191 |
break;
|
| 2192 |
case 31: |
| 2193 |
switch (sel) {
|
| 2194 |
case 0: |
| 2195 |
gen_op_mfc0_desave(); /* EJTAG support */
|
| 2196 |
rn = "DESAVE";
|
| 2197 |
break;
|
| 2198 |
default:
|
| 2199 |
goto die;
|
| 2200 |
} |
| 2201 |
break;
|
| 2202 |
default:
|
| 2203 |
goto die;
|
| 2204 |
} |
| 2205 |
#if defined MIPS_DEBUG_DISAS
|
| 2206 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2207 |
fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
|
| 2208 |
rn, reg, sel); |
| 2209 |
} |
| 2210 |
#endif
|
| 2211 |
return;
|
| 2212 |
|
| 2213 |
die:
|
| 2214 |
#if defined MIPS_DEBUG_DISAS
|
| 2215 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2216 |
fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
|
| 2217 |
rn, reg, sel); |
| 2218 |
} |
| 2219 |
#endif
|
| 2220 |
generate_exception(ctx, EXCP_RI); |
| 2221 |
} |
| 2222 |
|
| 2223 |
static void gen_mtc0 (DisasContext *ctx, int reg, int sel) |
| 2224 |
{
|
| 2225 |
const char *rn = "invalid"; |
| 2226 |
|
| 2227 |
switch (reg) {
|
| 2228 |
case 0: |
| 2229 |
switch (sel) {
|
| 2230 |
case 0: |
| 2231 |
gen_op_mtc0_index(); |
| 2232 |
rn = "Index";
|
| 2233 |
break;
|
| 2234 |
case 1: |
| 2235 |
// gen_op_mtc0_mvpcontrol(); /* MT ASE */
|
| 2236 |
rn = "MVPControl";
|
| 2237 |
// break;
|
| 2238 |
case 2: |
| 2239 |
// gen_op_mtc0_mvpconf0(); /* MT ASE */
|
| 2240 |
rn = "MVPConf0";
|
| 2241 |
// break;
|
| 2242 |
case 3: |
| 2243 |
// gen_op_mtc0_mvpconf1(); /* MT ASE */
|
| 2244 |
rn = "MVPConf1";
|
| 2245 |
// break;
|
| 2246 |
default:
|
| 2247 |
goto die;
|
| 2248 |
} |
| 2249 |
break;
|
| 2250 |
case 1: |
| 2251 |
switch (sel) {
|
| 2252 |
case 0: |
| 2253 |
/* ignored */
|
| 2254 |
rn = "Random";
|
| 2255 |
break;
|
| 2256 |
case 1: |
| 2257 |
// gen_op_mtc0_vpecontrol(); /* MT ASE */
|
| 2258 |
rn = "VPEControl";
|
| 2259 |
// break;
|
| 2260 |
case 2: |
| 2261 |
// gen_op_mtc0_vpeconf0(); /* MT ASE */
|
| 2262 |
rn = "VPEConf0";
|
| 2263 |
// break;
|
| 2264 |
case 3: |
| 2265 |
// gen_op_mtc0_vpeconf1(); /* MT ASE */
|
| 2266 |
rn = "VPEConf1";
|
| 2267 |
// break;
|
| 2268 |
case 4: |
| 2269 |
// gen_op_mtc0_YQMask(); /* MT ASE */
|
| 2270 |
rn = "YQMask";
|
| 2271 |
// break;
|
| 2272 |
case 5: |
| 2273 |
// gen_op_mtc0_vpeschedule(); /* MT ASE */
|
| 2274 |
rn = "VPESchedule";
|
| 2275 |
// break;
|
| 2276 |
case 6: |
| 2277 |
// gen_op_mtc0_vpeschefback(); /* MT ASE */
|
| 2278 |
rn = "VPEScheFBack";
|
| 2279 |
// break;
|
| 2280 |
case 7: |
| 2281 |
// gen_op_mtc0_vpeopt(); /* MT ASE */
|
| 2282 |
rn = "VPEOpt";
|
| 2283 |
// break;
|
| 2284 |
default:
|
| 2285 |
goto die;
|
| 2286 |
} |
| 2287 |
break;
|
| 2288 |
case 2: |
| 2289 |
switch (sel) {
|
| 2290 |
case 0: |
| 2291 |
gen_op_mtc0_entrylo0(); |
| 2292 |
rn = "EntryLo0";
|
| 2293 |
break;
|
| 2294 |
case 1: |
| 2295 |
// gen_op_mtc0_tcstatus(); /* MT ASE */
|
| 2296 |
rn = "TCStatus";
|
| 2297 |
// break;
|
| 2298 |
case 2: |
| 2299 |
// gen_op_mtc0_tcbind(); /* MT ASE */
|
| 2300 |
rn = "TCBind";
|
| 2301 |
// break;
|
| 2302 |
case 3: |
| 2303 |
// gen_op_mtc0_tcrestart(); /* MT ASE */
|
| 2304 |
rn = "TCRestart";
|
| 2305 |
// break;
|
| 2306 |
case 4: |
| 2307 |
// gen_op_mtc0_tchalt(); /* MT ASE */
|
| 2308 |
rn = "TCHalt";
|
| 2309 |
// break;
|
| 2310 |
case 5: |
| 2311 |
// gen_op_mtc0_tccontext(); /* MT ASE */
|
| 2312 |
rn = "TCContext";
|
| 2313 |
// break;
|
| 2314 |
case 6: |
| 2315 |
// gen_op_mtc0_tcschedule(); /* MT ASE */
|
| 2316 |
rn = "TCSchedule";
|
| 2317 |
// break;
|
| 2318 |
case 7: |
| 2319 |
// gen_op_mtc0_tcschefback(); /* MT ASE */
|
| 2320 |
rn = "TCScheFBack";
|
| 2321 |
// break;
|
| 2322 |
default:
|
| 2323 |
goto die;
|
| 2324 |
} |
| 2325 |
break;
|
| 2326 |
case 3: |
| 2327 |
switch (sel) {
|
| 2328 |
case 0: |
| 2329 |
gen_op_mtc0_entrylo1(); |
| 2330 |
rn = "EntryLo1";
|
| 2331 |
break;
|
| 2332 |
default:
|
| 2333 |
goto die;
|
| 2334 |
} |
| 2335 |
break;
|
| 2336 |
case 4: |
| 2337 |
switch (sel) {
|
| 2338 |
case 0: |
| 2339 |
gen_op_mtc0_context(); |
| 2340 |
rn = "Context";
|
| 2341 |
break;
|
| 2342 |
case 1: |
| 2343 |
// gen_op_mtc0_contextconfig(); /* SmartMIPS ASE */
|
| 2344 |
rn = "ContextConfig";
|
| 2345 |
// break;
|
| 2346 |
default:
|
| 2347 |
goto die;
|
| 2348 |
} |
| 2349 |
break;
|
| 2350 |
case 5: |
| 2351 |
switch (sel) {
|
| 2352 |
case 0: |
| 2353 |
gen_op_mtc0_pagemask(); |
| 2354 |
rn = "PageMask";
|
| 2355 |
break;
|
| 2356 |
case 1: |
| 2357 |
gen_op_mtc0_pagegrain(); |
| 2358 |
rn = "PageGrain";
|
| 2359 |
break;
|
| 2360 |
default:
|
| 2361 |
goto die;
|
| 2362 |
} |
| 2363 |
break;
|
| 2364 |
case 6: |
| 2365 |
switch (sel) {
|
| 2366 |
case 0: |
| 2367 |
gen_op_mtc0_wired(); |
| 2368 |
rn = "Wired";
|
| 2369 |
break;
|
| 2370 |
case 1: |
| 2371 |
// gen_op_mtc0_srsconf0(); /* shadow registers */
|
| 2372 |
rn = "SRSConf0";
|
| 2373 |
// break;
|
| 2374 |
case 2: |
| 2375 |
// gen_op_mtc0_srsconf1(); /* shadow registers */
|
| 2376 |
rn = "SRSConf1";
|
| 2377 |
// break;
|
| 2378 |
case 3: |
| 2379 |
// gen_op_mtc0_srsconf2(); /* shadow registers */
|
| 2380 |
rn = "SRSConf2";
|
| 2381 |
// break;
|
| 2382 |
case 4: |
| 2383 |
// gen_op_mtc0_srsconf3(); /* shadow registers */
|
| 2384 |
rn = "SRSConf3";
|
| 2385 |
// break;
|
| 2386 |
case 5: |
| 2387 |
// gen_op_mtc0_srsconf4(); /* shadow registers */
|
| 2388 |
rn = "SRSConf4";
|
| 2389 |
// break;
|
| 2390 |
default:
|
| 2391 |
goto die;
|
| 2392 |
} |
| 2393 |
break;
|
| 2394 |
case 7: |
| 2395 |
switch (sel) {
|
| 2396 |
case 0: |
| 2397 |
gen_op_mtc0_hwrena(); |
| 2398 |
rn = "HWREna";
|
| 2399 |
break;
|
| 2400 |
default:
|
| 2401 |
goto die;
|
| 2402 |
} |
| 2403 |
break;
|
| 2404 |
case 8: |
| 2405 |
/* ignored */
|
| 2406 |
rn = "BadVaddr";
|
| 2407 |
break;
|
| 2408 |
case 9: |
| 2409 |
switch (sel) {
|
| 2410 |
case 0: |
| 2411 |
gen_op_mtc0_count(); |
| 2412 |
rn = "Count";
|
| 2413 |
break;
|
| 2414 |
/* 6,7 are implementation dependent */
|
| 2415 |
default:
|
| 2416 |
goto die;
|
| 2417 |
} |
| 2418 |
/* Stop translation as we may have switched the execution mode */
|
| 2419 |
ctx->bstate = BS_STOP; |
| 2420 |
break;
|
| 2421 |
case 10: |
| 2422 |
switch (sel) {
|
| 2423 |
case 0: |
| 2424 |
gen_op_mtc0_entryhi(); |
| 2425 |
rn = "EntryHi";
|
| 2426 |
break;
|
| 2427 |
default:
|
| 2428 |
goto die;
|
| 2429 |
} |
| 2430 |
break;
|
| 2431 |
case 11: |
| 2432 |
switch (sel) {
|
| 2433 |
case 0: |
| 2434 |
gen_op_mtc0_compare(); |
| 2435 |
rn = "Compare";
|
| 2436 |
break;
|
| 2437 |
/* 6,7 are implementation dependent */
|
| 2438 |
default:
|
| 2439 |
goto die;
|
| 2440 |
} |
| 2441 |
/* Stop translation as we may have switched the execution mode */
|
| 2442 |
ctx->bstate = BS_STOP; |
| 2443 |
break;
|
| 2444 |
case 12: |
| 2445 |
switch (sel) {
|
| 2446 |
case 0: |
| 2447 |
gen_op_mtc0_status(); |
| 2448 |
rn = "Status";
|
| 2449 |
break;
|
| 2450 |
case 1: |
| 2451 |
gen_op_mtc0_intctl(); |
| 2452 |
rn = "IntCtl";
|
| 2453 |
break;
|
| 2454 |
case 2: |
| 2455 |
gen_op_mtc0_srsctl(); |
| 2456 |
rn = "SRSCtl";
|
| 2457 |
break;
|
| 2458 |
case 3: |
| 2459 |
// gen_op_mtc0_srsmap(); /* shadow registers */
|
| 2460 |
rn = "SRSMap";
|
| 2461 |
// break;
|
| 2462 |
default:
|
| 2463 |
goto die;
|
| 2464 |
} |
| 2465 |
/* Stop translation as we may have switched the execution mode */
|
| 2466 |
ctx->bstate = BS_STOP; |
| 2467 |
break;
|
| 2468 |
case 13: |
| 2469 |
switch (sel) {
|
| 2470 |
case 0: |
| 2471 |
gen_op_mtc0_cause(); |
| 2472 |
rn = "Cause";
|
| 2473 |
break;
|
| 2474 |
default:
|
| 2475 |
goto die;
|
| 2476 |
} |
| 2477 |
/* Stop translation as we may have switched the execution mode */
|
| 2478 |
ctx->bstate = BS_STOP; |
| 2479 |
break;
|
| 2480 |
case 14: |
| 2481 |
switch (sel) {
|
| 2482 |
case 0: |
| 2483 |
gen_op_mtc0_epc(); |
| 2484 |
rn = "EPC";
|
| 2485 |
break;
|
| 2486 |
default:
|
| 2487 |
goto die;
|
| 2488 |
} |
| 2489 |
break;
|
| 2490 |
case 15: |
| 2491 |
switch (sel) {
|
| 2492 |
case 0: |
| 2493 |
/* ignored */
|
| 2494 |
rn = "PRid";
|
| 2495 |
break;
|
| 2496 |
case 1: |
| 2497 |
gen_op_mtc0_ebase(); |
| 2498 |
rn = "EBase";
|
| 2499 |
break;
|
| 2500 |
default:
|
| 2501 |
goto die;
|
| 2502 |
} |
| 2503 |
break;
|
| 2504 |
case 16: |
| 2505 |
switch (sel) {
|
| 2506 |
case 0: |
| 2507 |
gen_op_mtc0_config0(); |
| 2508 |
rn = "Config";
|
| 2509 |
break;
|
| 2510 |
case 1: |
| 2511 |
/* ignored */
|
| 2512 |
rn = "Config1";
|
| 2513 |
break;
|
| 2514 |
case 2: |
| 2515 |
gen_op_mtc0_config2(); |
| 2516 |
rn = "Config2";
|
| 2517 |
break;
|
| 2518 |
case 3: |
| 2519 |
/* ignored */
|
| 2520 |
rn = "Config3";
|
| 2521 |
break;
|
| 2522 |
/* 6,7 are implementation dependent */
|
| 2523 |
default:
|
| 2524 |
rn = "Invalid config selector";
|
| 2525 |
goto die;
|
| 2526 |
} |
| 2527 |
/* Stop translation as we may have switched the execution mode */
|
| 2528 |
ctx->bstate = BS_STOP; |
| 2529 |
break;
|
| 2530 |
case 17: |
| 2531 |
switch (sel) {
|
| 2532 |
case 0: |
| 2533 |
/* ignored */
|
| 2534 |
rn = "LLAddr";
|
| 2535 |
break;
|
| 2536 |
default:
|
| 2537 |
goto die;
|
| 2538 |
} |
| 2539 |
break;
|
| 2540 |
case 18: |
| 2541 |
switch (sel) {
|
| 2542 |
case 0: |
| 2543 |
gen_op_mtc0_watchlo0(); |
| 2544 |
rn = "WatchLo";
|
| 2545 |
break;
|
| 2546 |
case 1: |
| 2547 |
// gen_op_mtc0_watchlo1();
|
| 2548 |
rn = "WatchLo1";
|
| 2549 |
// break;
|
| 2550 |
case 2: |
| 2551 |
// gen_op_mtc0_watchlo2();
|
| 2552 |
rn = "WatchLo2";
|
| 2553 |
// break;
|
| 2554 |
case 3: |
| 2555 |
// gen_op_mtc0_watchlo3();
|
| 2556 |
rn = "WatchLo3";
|
| 2557 |
// break;
|
| 2558 |
case 4: |
| 2559 |
// gen_op_mtc0_watchlo4();
|
| 2560 |
rn = "WatchLo4";
|
| 2561 |
// break;
|
| 2562 |
case 5: |
| 2563 |
// gen_op_mtc0_watchlo5();
|
| 2564 |
rn = "WatchLo5";
|
| 2565 |
// break;
|
| 2566 |
case 6: |
| 2567 |
// gen_op_mtc0_watchlo6();
|
| 2568 |
rn = "WatchLo6";
|
| 2569 |
// break;
|
| 2570 |
case 7: |
| 2571 |
// gen_op_mtc0_watchlo7();
|
| 2572 |
rn = "WatchLo7";
|
| 2573 |
// break;
|
| 2574 |
default:
|
| 2575 |
goto die;
|
| 2576 |
} |
| 2577 |
break;
|
| 2578 |
case 19: |
| 2579 |
switch (sel) {
|
| 2580 |
case 0: |
| 2581 |
gen_op_mtc0_watchhi0(); |
| 2582 |
rn = "WatchHi";
|
| 2583 |
break;
|
| 2584 |
case 1: |
| 2585 |
// gen_op_mtc0_watchhi1();
|
| 2586 |
rn = "WatchHi1";
|
| 2587 |
// break;
|
| 2588 |
case 2: |
| 2589 |
// gen_op_mtc0_watchhi2();
|
| 2590 |
rn = "WatchHi2";
|
| 2591 |
// break;
|
| 2592 |
case 3: |
| 2593 |
// gen_op_mtc0_watchhi3();
|
| 2594 |
rn = "WatchHi3";
|
| 2595 |
// break;
|
| 2596 |
case 4: |
| 2597 |
// gen_op_mtc0_watchhi4();
|
| 2598 |
rn = "WatchHi4";
|
| 2599 |
// break;
|
| 2600 |
case 5: |
| 2601 |
// gen_op_mtc0_watchhi5();
|
| 2602 |
rn = "WatchHi5";
|
| 2603 |
// break;
|
| 2604 |
case 6: |
| 2605 |
// gen_op_mtc0_watchhi6();
|
| 2606 |
rn = "WatchHi6";
|
| 2607 |
// break;
|
| 2608 |
case 7: |
| 2609 |
// gen_op_mtc0_watchhi7();
|
| 2610 |
rn = "WatchHi7";
|
| 2611 |
// break;
|
| 2612 |
default:
|
| 2613 |
goto die;
|
| 2614 |
} |
| 2615 |
break;
|
| 2616 |
case 20: |
| 2617 |
switch (sel) {
|
| 2618 |
case 0: |
| 2619 |
/* 64 bit MMU only */
|
| 2620 |
gen_op_mtc0_xcontext(); |
| 2621 |
rn = "XContext";
|
| 2622 |
break;
|
| 2623 |
default:
|
| 2624 |
goto die;
|
| 2625 |
} |
| 2626 |
break;
|
| 2627 |
case 21: |
| 2628 |
/* Officially reserved, but sel 0 is used for R1x000 framemask */
|
| 2629 |
switch (sel) {
|
| 2630 |
case 0: |
| 2631 |
gen_op_mtc0_framemask(); |
| 2632 |
rn = "Framemask";
|
| 2633 |
break;
|
| 2634 |
default:
|
| 2635 |
goto die;
|
| 2636 |
} |
| 2637 |
break;
|
| 2638 |
case 22: |
| 2639 |
/* ignored */
|
| 2640 |
rn = "Diagnostic"; /* implementation dependent */ |
| 2641 |
break;
|
| 2642 |
case 23: |
| 2643 |
switch (sel) {
|
| 2644 |
case 0: |
| 2645 |
gen_op_mtc0_debug(); /* EJTAG support */
|
| 2646 |
rn = "Debug";
|
| 2647 |
break;
|
| 2648 |
case 1: |
| 2649 |
// gen_op_mtc0_tracecontrol(); /* PDtrace support */
|
| 2650 |
rn = "TraceControl";
|
| 2651 |
// break;
|
| 2652 |
case 2: |
| 2653 |
// gen_op_mtc0_tracecontrol2(); /* PDtrace support */
|
| 2654 |
rn = "TraceControl2";
|
| 2655 |
// break;
|
| 2656 |
case 3: |
| 2657 |
// gen_op_mtc0_usertracedata(); /* PDtrace support */
|
| 2658 |
rn = "UserTraceData";
|
| 2659 |
// break;
|
| 2660 |
case 4: |
| 2661 |
// gen_op_mtc0_debug(); /* PDtrace support */
|
| 2662 |
rn = "TraceBPC";
|
| 2663 |
// break;
|
| 2664 |
default:
|
| 2665 |
goto die;
|
| 2666 |
} |
| 2667 |
/* Stop translation as we may have switched the execution mode */
|
| 2668 |
ctx->bstate = BS_STOP; |
| 2669 |
break;
|
| 2670 |
case 24: |
| 2671 |
switch (sel) {
|
| 2672 |
case 0: |
| 2673 |
gen_op_mtc0_depc(); /* EJTAG support */
|
| 2674 |
rn = "DEPC";
|
| 2675 |
break;
|
| 2676 |
default:
|
| 2677 |
goto die;
|
| 2678 |
} |
| 2679 |
break;
|
| 2680 |
case 25: |
| 2681 |
switch (sel) {
|
| 2682 |
case 0: |
| 2683 |
gen_op_mtc0_performance0(); |
| 2684 |
rn = "Performance0";
|
| 2685 |
break;
|
| 2686 |
case 1: |
| 2687 |
// gen_op_mtc0_performance1();
|
| 2688 |
rn = "Performance1";
|
| 2689 |
// break;
|
| 2690 |
case 2: |
| 2691 |
// gen_op_mtc0_performance2();
|
| 2692 |
rn = "Performance2";
|
| 2693 |
// break;
|
| 2694 |
case 3: |
| 2695 |
// gen_op_mtc0_performance3();
|
| 2696 |
rn = "Performance3";
|
| 2697 |
// break;
|
| 2698 |
case 4: |
| 2699 |
// gen_op_mtc0_performance4();
|
| 2700 |
rn = "Performance4";
|
| 2701 |
// break;
|
| 2702 |
case 5: |
| 2703 |
// gen_op_mtc0_performance5();
|
| 2704 |
rn = "Performance5";
|
| 2705 |
// break;
|
| 2706 |
case 6: |
| 2707 |
// gen_op_mtc0_performance6();
|
| 2708 |
rn = "Performance6";
|
| 2709 |
// break;
|
| 2710 |
case 7: |
| 2711 |
// gen_op_mtc0_performance7();
|
| 2712 |
rn = "Performance7";
|
| 2713 |
// break;
|
| 2714 |
default:
|
| 2715 |
goto die;
|
| 2716 |
} |
| 2717 |
break;
|
| 2718 |
case 26: |
| 2719 |
/* ignored */
|
| 2720 |
rn = "ECC";
|
| 2721 |
break;
|
| 2722 |
case 27: |
| 2723 |
switch (sel) {
|
| 2724 |
case 0 ... 3: |
| 2725 |
/* ignored */
|
| 2726 |
rn = "CacheErr";
|
| 2727 |
break;
|
| 2728 |
default:
|
| 2729 |
goto die;
|
| 2730 |
} |
| 2731 |
break;
|
| 2732 |
case 28: |
| 2733 |
switch (sel) {
|
| 2734 |
case 0: |
| 2735 |
case 2: |
| 2736 |
case 4: |
| 2737 |
case 6: |
| 2738 |
gen_op_mtc0_taglo(); |
| 2739 |
rn = "TagLo";
|
| 2740 |
break;
|
| 2741 |
case 1: |
| 2742 |
case 3: |
| 2743 |
case 5: |
| 2744 |
case 7: |
| 2745 |
gen_op_mtc0_datalo(); |
| 2746 |
rn = "DataLo";
|
| 2747 |
break;
|
| 2748 |
default:
|
| 2749 |
goto die;
|
| 2750 |
} |
| 2751 |
break;
|
| 2752 |
case 29: |
| 2753 |
switch (sel) {
|
| 2754 |
case 0: |
| 2755 |
case 2: |
| 2756 |
case 4: |
| 2757 |
case 6: |
| 2758 |
gen_op_mtc0_taghi(); |
| 2759 |
rn = "TagHi";
|
| 2760 |
break;
|
| 2761 |
case 1: |
| 2762 |
case 3: |
| 2763 |
case 5: |
| 2764 |
case 7: |
| 2765 |
gen_op_mtc0_datahi(); |
| 2766 |
rn = "DataHi";
|
| 2767 |
break;
|
| 2768 |
default:
|
| 2769 |
rn = "invalid sel";
|
| 2770 |
goto die;
|
| 2771 |
} |
| 2772 |
break;
|
| 2773 |
case 30: |
| 2774 |
switch (sel) {
|
| 2775 |
case 0: |
| 2776 |
gen_op_mtc0_errorepc(); |
| 2777 |
rn = "ErrorEPC";
|
| 2778 |
break;
|
| 2779 |
default:
|
| 2780 |
goto die;
|
| 2781 |
} |
| 2782 |
break;
|
| 2783 |
case 31: |
| 2784 |
switch (sel) {
|
| 2785 |
case 0: |
| 2786 |
gen_op_mtc0_desave(); /* EJTAG support */
|
| 2787 |
rn = "DESAVE";
|
| 2788 |
break;
|
| 2789 |
default:
|
| 2790 |
goto die;
|
| 2791 |
} |
| 2792 |
/* Stop translation as we may have switched the execution mode */
|
| 2793 |
ctx->bstate = BS_STOP; |
| 2794 |
break;
|
| 2795 |
default:
|
| 2796 |
goto die;
|
| 2797 |
} |
| 2798 |
#if defined MIPS_DEBUG_DISAS
|
| 2799 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2800 |
fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
|
| 2801 |
rn, reg, sel); |
| 2802 |
} |
| 2803 |
#endif
|
| 2804 |
return;
|
| 2805 |
|
| 2806 |
die:
|
| 2807 |
#if defined MIPS_DEBUG_DISAS
|
| 2808 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2809 |
fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
|
| 2810 |
rn, reg, sel); |
| 2811 |
} |
| 2812 |
#endif
|
| 2813 |
generate_exception(ctx, EXCP_RI); |
| 2814 |
} |
| 2815 |
|
| 2816 |
static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd) |
| 2817 |
{
|
| 2818 |
const char *opn = "unk"; |
| 2819 |
|
| 2820 |
if ((!ctx->CP0_Status & (1 << CP0St_CU0) && |
| 2821 |
(ctx->hflags & MIPS_HFLAG_UM)) && |
| 2822 |
!(ctx->hflags & MIPS_HFLAG_ERL) && |
| 2823 |
!(ctx->hflags & MIPS_HFLAG_EXL)) {
|
| 2824 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2825 |
fprintf(logfile, "CP0 is not usable\n");
|
| 2826 |
} |
| 2827 |
generate_exception (ctx, EXCP_CpU); |
| 2828 |
return;
|
| 2829 |
} |
| 2830 |
|
| 2831 |
switch (opc) {
|
| 2832 |
case OPC_MFC0:
|
| 2833 |
if (rt == 0) { |
| 2834 |
/* Treat as NOP */
|
| 2835 |
return;
|
| 2836 |
} |
| 2837 |
gen_mfc0(ctx, rd, ctx->opcode & 0x7);
|
| 2838 |
gen_op_store_T0_gpr(rt); |
| 2839 |
opn = "mfc0";
|
| 2840 |
break;
|
| 2841 |
case OPC_MTC0:
|
| 2842 |
/* If we get an exception, we want to restart at next instruction */
|
| 2843 |
/* XXX: breaks for mtc in delay slot */
|
| 2844 |
ctx->pc += 4;
|
| 2845 |
save_cpu_state(ctx, 1);
|
| 2846 |
ctx->pc -= 4;
|
| 2847 |
GEN_LOAD_REG_TN(T0, rt); |
| 2848 |
gen_mtc0(ctx, rd, ctx->opcode & 0x7);
|
| 2849 |
opn = "mtc0";
|
| 2850 |
break;
|
| 2851 |
#if defined(MIPS_USES_R4K_TLB)
|
| 2852 |
case OPC_TLBWI:
|
| 2853 |
gen_op_tlbwi(); |
| 2854 |
opn = "tlbwi";
|
| 2855 |
break;
|
| 2856 |
case OPC_TLBWR:
|
| 2857 |
gen_op_tlbwr(); |
| 2858 |
opn = "tlbwr";
|
| 2859 |
break;
|
| 2860 |
case OPC_TLBP:
|
| 2861 |
gen_op_tlbp(); |
| 2862 |
opn = "tlbp";
|
| 2863 |
break;
|
| 2864 |
case OPC_TLBR:
|
| 2865 |
gen_op_tlbr(); |
| 2866 |
opn = "tlbr";
|
| 2867 |
break;
|
| 2868 |
#endif
|
| 2869 |
case OPC_ERET:
|
| 2870 |
opn = "eret";
|
| 2871 |
save_cpu_state(ctx, 0);
|
| 2872 |
gen_op_eret(); |
| 2873 |
ctx->bstate = BS_EXCP; |
| 2874 |
break;
|
| 2875 |
case OPC_DERET:
|
| 2876 |
opn = "deret";
|
| 2877 |
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
|
| 2878 |
generate_exception(ctx, EXCP_RI); |
| 2879 |
} else {
|
| 2880 |
save_cpu_state(ctx, 0);
|
| 2881 |
gen_op_deret(); |
| 2882 |
ctx->bstate = BS_EXCP; |
| 2883 |
} |
| 2884 |
break;
|
| 2885 |
case OPC_WAIT:
|
| 2886 |
opn = "wait";
|
| 2887 |
/* If we get an exception, we want to restart at next instruction */
|
| 2888 |
ctx->pc += 4;
|
| 2889 |
save_cpu_state(ctx, 1);
|
| 2890 |
ctx->pc -= 4;
|
| 2891 |
gen_op_wait(); |
| 2892 |
ctx->bstate = BS_EXCP; |
| 2893 |
break;
|
| 2894 |
default:
|
| 2895 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2896 |
fprintf(logfile, "Invalid CP0 opcode: %08x %03x %03x %03x\n",
|
| 2897 |
ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
| 2898 |
((ctx->opcode >> 16) & 0x1F)); |
| 2899 |
} |
| 2900 |
generate_exception(ctx, EXCP_RI); |
| 2901 |
return;
|
| 2902 |
} |
| 2903 |
MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
|
| 2904 |
} |
| 2905 |
|
| 2906 |
/* CP1 Branches (before delay slot) */
|
| 2907 |
static void gen_compute_branch1 (DisasContext *ctx, uint32_t op, |
| 2908 |
int32_t offset) |
| 2909 |
{
|
| 2910 |
target_ulong btarget; |
| 2911 |
|
| 2912 |
btarget = ctx->pc + 4 + offset;
|
| 2913 |
|
| 2914 |
switch (op) {
|
| 2915 |
case OPC_BC1F:
|
| 2916 |
gen_op_bc1f(); |
| 2917 |
MIPS_DEBUG("bc1f %08x", btarget);
|
| 2918 |
goto not_likely;
|
| 2919 |
case OPC_BC1FL:
|
| 2920 |
gen_op_bc1f(); |
| 2921 |
MIPS_DEBUG("bc1fl %08x", btarget);
|
| 2922 |
goto likely;
|
| 2923 |
case OPC_BC1T:
|
| 2924 |
gen_op_bc1t(); |
| 2925 |
MIPS_DEBUG("bc1t %08x", btarget);
|
| 2926 |
not_likely:
|
| 2927 |
ctx->hflags |= MIPS_HFLAG_BC; |
| 2928 |
break;
|
| 2929 |
case OPC_BC1TL:
|
| 2930 |
gen_op_bc1t(); |
| 2931 |
MIPS_DEBUG("bc1tl %08x", btarget);
|
| 2932 |
likely:
|
| 2933 |
ctx->hflags |= MIPS_HFLAG_BL; |
| 2934 |
break;
|
| 2935 |
default:
|
| 2936 |
MIPS_INVAL("cp1 branch/jump");
|
| 2937 |
generate_exception_err (ctx, EXCP_RI, 1);
|
| 2938 |
return;
|
| 2939 |
} |
| 2940 |
gen_op_set_bcond(); |
| 2941 |
|
| 2942 |
MIPS_DEBUG("enter ds: cond %02x target %08x",
|
| 2943 |
ctx->hflags, btarget); |
| 2944 |
ctx->btarget = btarget; |
| 2945 |
|
| 2946 |
return;
|
| 2947 |
} |
| 2948 |
|
| 2949 |
/* Coprocessor 1 (FPU) */
|
| 2950 |
static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs) |
| 2951 |
{
|
| 2952 |
const char *opn = "unk"; |
| 2953 |
|
| 2954 |
switch (opc) {
|
| 2955 |
case OPC_MFC1:
|
| 2956 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 2957 |
gen_op_mfc1(); |
| 2958 |
GEN_STORE_TN_REG(rt, T0); |
| 2959 |
opn = "mfc1";
|
| 2960 |
break;
|
| 2961 |
case OPC_MTC1:
|
| 2962 |
GEN_LOAD_REG_TN(T0, rt); |
| 2963 |
gen_op_mtc1(); |
| 2964 |
GEN_STORE_FTN_FREG(fs, WT0); |
| 2965 |
opn = "mtc1";
|
| 2966 |
break;
|
| 2967 |
case OPC_CFC1:
|
| 2968 |
if (fs != 0 && fs != 31) { |
| 2969 |
MIPS_INVAL("cfc1 freg");
|
| 2970 |
generate_exception_err (ctx, EXCP_RI, 1);
|
| 2971 |
return;
|
| 2972 |
} |
| 2973 |
GEN_LOAD_IMM_TN(T1, fs); |
| 2974 |
gen_op_cfc1(); |
| 2975 |
GEN_STORE_TN_REG(rt, T0); |
| 2976 |
opn = "cfc1";
|
| 2977 |
break;
|
| 2978 |
case OPC_CTC1:
|
| 2979 |
if (fs != 0 && fs != 31) { |
| 2980 |
MIPS_INVAL("ctc1 freg");
|
| 2981 |
generate_exception_err (ctx, EXCP_RI, 1);
|
| 2982 |
return;
|
| 2983 |
} |
| 2984 |
GEN_LOAD_IMM_TN(T1, fs); |
| 2985 |
GEN_LOAD_REG_TN(T0, rt); |
| 2986 |
gen_op_ctc1(); |
| 2987 |
opn = "ctc1";
|
| 2988 |
break;
|
| 2989 |
default:
|
| 2990 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2991 |
fprintf(logfile, "Invalid CP1 opcode: %08x %03x %03x %03x\n",
|
| 2992 |
ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
| 2993 |
((ctx->opcode >> 16) & 0x1F)); |
| 2994 |
} |
| 2995 |
generate_exception_err (ctx, EXCP_RI, 1);
|
| 2996 |
return;
|
| 2997 |
} |
| 2998 |
MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
|
| 2999 |
} |
| 3000 |
|
| 3001 |
/* verify if floating point register is valid; an operation is not defined
|
| 3002 |
* if bit 0 of any register specification is set and the FR bit in the
|
| 3003 |
* Status register equals zero, since the register numbers specify an
|
| 3004 |
* even-odd pair of adjacent coprocessor general registers. When the FR bit
|
| 3005 |
* in the Status register equals one, both even and odd register numbers
|
| 3006 |
* are valid.
|
| 3007 |
*
|
| 3008 |
* Multiple float registers can be checked by calling
|
| 3009 |
* CHECK_FR(ctx, freg1 | freg2 | ... | fregN);
|
| 3010 |
*/
|
| 3011 |
#define CHECK_FR(ctx, freg) do { \ |
| 3012 |
if (!((ctx)->CP0_Status & (1<<CP0St_FR)) && ((freg) & 1)) { \ |
| 3013 |
generate_exception_err (ctx, EXCP_RI, 1); \
|
| 3014 |
return; \
|
| 3015 |
} \ |
| 3016 |
} while(0) |
| 3017 |
|
| 3018 |
#define FOP(func, fmt) (((fmt) << 21) | (func)) |
| 3019 |
|
| 3020 |
static void gen_farith (DisasContext *ctx, uint32_t op1, int ft, int fs, int fd) |
| 3021 |
{
|
| 3022 |
const char *opn = "unk"; |
| 3023 |
const char *condnames[] = { |
| 3024 |
"c.f",
|
| 3025 |
"c.un",
|
| 3026 |
"c.eq",
|
| 3027 |
"c.ueq",
|
| 3028 |
"c.olt",
|
| 3029 |
"c.ult",
|
| 3030 |
"c.ole",
|
| 3031 |
"c.ule",
|
| 3032 |
"c.sf",
|
| 3033 |
"c.ngle",
|
| 3034 |
"c.seq",
|
| 3035 |
"c.ngl",
|
| 3036 |
"c.lt",
|
| 3037 |
"c.nge",
|
| 3038 |
"c.le",
|
| 3039 |
"c.ngt",
|
| 3040 |
}; |
| 3041 |
int binary = 0; |
| 3042 |
uint32_t func = ctx->opcode & 0x3f;
|
| 3043 |
|
| 3044 |
switch (ctx->opcode & FOP(0x3f, 0x1f)) { |
| 3045 |
case FOP(0, 17): |
| 3046 |
CHECK_FR(ctx, fs | ft | fd); |
| 3047 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3048 |
GEN_LOAD_FREG_FTN(DT1, ft); |
| 3049 |
gen_op_float_add_d(); |
| 3050 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3051 |
opn = "add.d";
|
| 3052 |
binary = 1;
|
| 3053 |
break;
|
| 3054 |
case FOP(1, 17): |
| 3055 |
CHECK_FR(ctx, fs | ft | fd); |
| 3056 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3057 |
GEN_LOAD_FREG_FTN(DT1, ft); |
| 3058 |
gen_op_float_sub_d(); |
| 3059 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3060 |
opn = "sub.d";
|
| 3061 |
binary = 1;
|
| 3062 |
break;
|
| 3063 |
case FOP(2, 17): |
| 3064 |
CHECK_FR(ctx, fs | ft | fd); |
| 3065 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3066 |
GEN_LOAD_FREG_FTN(DT1, ft); |
| 3067 |
gen_op_float_mul_d(); |
| 3068 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3069 |
opn = "mul.d";
|
| 3070 |
binary = 1;
|
| 3071 |
break;
|
| 3072 |
case FOP(3, 17): |
| 3073 |
CHECK_FR(ctx, fs | ft | fd); |
| 3074 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3075 |
GEN_LOAD_FREG_FTN(DT1, ft); |
| 3076 |
gen_op_float_div_d(); |
| 3077 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3078 |
opn = "div.d";
|
| 3079 |
binary = 1;
|
| 3080 |
break;
|
| 3081 |
case FOP(4, 17): |
| 3082 |
CHECK_FR(ctx, fs | fd); |
| 3083 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3084 |
gen_op_float_sqrt_d(); |
| 3085 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3086 |
opn = "sqrt.d";
|
| 3087 |
break;
|
| 3088 |
case FOP(5, 17): |
| 3089 |
CHECK_FR(ctx, fs | fd); |
| 3090 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3091 |
gen_op_float_abs_d(); |
| 3092 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3093 |
opn = "abs.d";
|
| 3094 |
break;
|
| 3095 |
case FOP(6, 17): |
| 3096 |
CHECK_FR(ctx, fs | fd); |
| 3097 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3098 |
gen_op_float_mov_d(); |
| 3099 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3100 |
opn = "mov.d";
|
| 3101 |
break;
|
| 3102 |
case FOP(7, 17): |
| 3103 |
CHECK_FR(ctx, fs | fd); |
| 3104 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3105 |
gen_op_float_chs_d(); |
| 3106 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3107 |
opn = "neg.d";
|
| 3108 |
break;
|
| 3109 |
/* 8 - round.l */
|
| 3110 |
/* 9 - trunc.l */
|
| 3111 |
/* 10 - ceil.l */
|
| 3112 |
/* 11 - floor.l */
|
| 3113 |
case FOP(12, 17): |
| 3114 |
CHECK_FR(ctx, fs | fd); |
| 3115 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3116 |
gen_op_float_roundw_d(); |
| 3117 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3118 |
opn = "round.w.d";
|
| 3119 |
break;
|
| 3120 |
case FOP(13, 17): |
| 3121 |
CHECK_FR(ctx, fs | fd); |
| 3122 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3123 |
gen_op_float_truncw_d(); |
| 3124 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3125 |
opn = "trunc.w.d";
|
| 3126 |
break;
|
| 3127 |
case FOP(14, 17): |
| 3128 |
CHECK_FR(ctx, fs | fd); |
| 3129 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3130 |
gen_op_float_ceilw_d(); |
| 3131 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3132 |
opn = "ceil.w.d";
|
| 3133 |
break;
|
| 3134 |
case FOP(15, 17): |
| 3135 |
CHECK_FR(ctx, fs | fd); |
| 3136 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3137 |
gen_op_float_floorw_d(); |
| 3138 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3139 |
opn = "floor.w.d";
|
| 3140 |
break;
|
| 3141 |
case FOP(33, 16): /* cvt.d.s */ |
| 3142 |
CHECK_FR(ctx, fs | fd); |
| 3143 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3144 |
gen_op_float_cvtd_s(); |
| 3145 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3146 |
opn = "cvt.d.s";
|
| 3147 |
break;
|
| 3148 |
case FOP(33, 20): /* cvt.d.w */ |
| 3149 |
CHECK_FR(ctx, fs | fd); |
| 3150 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3151 |
gen_op_float_cvtd_w(); |
| 3152 |
GEN_STORE_FTN_FREG(fd, DT2); |
| 3153 |
opn = "cvt.d.w";
|
| 3154 |
break;
|
| 3155 |
case FOP(48, 17): |
| 3156 |
case FOP(49, 17): |
| 3157 |
case FOP(50, 17): |
| 3158 |
case FOP(51, 17): |
| 3159 |
case FOP(52, 17): |
| 3160 |
case FOP(53, 17): |
| 3161 |
case FOP(54, 17): |
| 3162 |
case FOP(55, 17): |
| 3163 |
case FOP(56, 17): |
| 3164 |
case FOP(57, 17): |
| 3165 |
case FOP(58, 17): |
| 3166 |
case FOP(59, 17): |
| 3167 |
case FOP(60, 17): |
| 3168 |
case FOP(61, 17): |
| 3169 |
case FOP(62, 17): |
| 3170 |
case FOP(63, 17): |
| 3171 |
CHECK_FR(ctx, fs | ft); |
| 3172 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3173 |
GEN_LOAD_FREG_FTN(DT1, ft); |
| 3174 |
gen_cmp_d(func-48);
|
| 3175 |
opn = condnames[func-48];
|
| 3176 |
break;
|
| 3177 |
case FOP(0, 16): |
| 3178 |
CHECK_FR(ctx, fs | ft | fd); |
| 3179 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3180 |
GEN_LOAD_FREG_FTN(WT1, ft); |
| 3181 |
gen_op_float_add_s(); |
| 3182 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3183 |
opn = "add.s";
|
| 3184 |
binary = 1;
|
| 3185 |
break;
|
| 3186 |
case FOP(1, 16): |
| 3187 |
CHECK_FR(ctx, fs | ft | fd); |
| 3188 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3189 |
GEN_LOAD_FREG_FTN(WT1, ft); |
| 3190 |
gen_op_float_sub_s(); |
| 3191 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3192 |
opn = "sub.s";
|
| 3193 |
binary = 1;
|
| 3194 |
break;
|
| 3195 |
case FOP(2, 16): |
| 3196 |
CHECK_FR(ctx, fs | ft | fd); |
| 3197 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3198 |
GEN_LOAD_FREG_FTN(WT1, ft); |
| 3199 |
gen_op_float_mul_s(); |
| 3200 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3201 |
opn = "mul.s";
|
| 3202 |
binary = 1;
|
| 3203 |
break;
|
| 3204 |
case FOP(3, 16): |
| 3205 |
CHECK_FR(ctx, fs | ft | fd); |
| 3206 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3207 |
GEN_LOAD_FREG_FTN(WT1, ft); |
| 3208 |
gen_op_float_div_s(); |
| 3209 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3210 |
opn = "div.s";
|
| 3211 |
binary = 1;
|
| 3212 |
break;
|
| 3213 |
case FOP(4, 16): |
| 3214 |
CHECK_FR(ctx, fs | fd); |
| 3215 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3216 |
gen_op_float_sqrt_s(); |
| 3217 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3218 |
opn = "sqrt.s";
|
| 3219 |
break;
|
| 3220 |
case FOP(5, 16): |
| 3221 |
CHECK_FR(ctx, fs | fd); |
| 3222 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3223 |
gen_op_float_abs_s(); |
| 3224 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3225 |
opn = "abs.s";
|
| 3226 |
break;
|
| 3227 |
case FOP(6, 16): |
| 3228 |
CHECK_FR(ctx, fs | fd); |
| 3229 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3230 |
gen_op_float_mov_s(); |
| 3231 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3232 |
opn = "mov.s";
|
| 3233 |
break;
|
| 3234 |
case FOP(7, 16): |
| 3235 |
CHECK_FR(ctx, fs | fd); |
| 3236 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3237 |
gen_op_float_chs_s(); |
| 3238 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3239 |
opn = "neg.s";
|
| 3240 |
break;
|
| 3241 |
case FOP(12, 16): |
| 3242 |
CHECK_FR(ctx, fs | fd); |
| 3243 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3244 |
gen_op_float_roundw_s(); |
| 3245 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3246 |
opn = "round.w.s";
|
| 3247 |
break;
|
| 3248 |
case FOP(13, 16): |
| 3249 |
CHECK_FR(ctx, fs | fd); |
| 3250 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3251 |
gen_op_float_truncw_s(); |
| 3252 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3253 |
opn = "trunc.w.s";
|
| 3254 |
break;
|
| 3255 |
case FOP(32, 17): /* cvt.s.d */ |
| 3256 |
CHECK_FR(ctx, fs | fd); |
| 3257 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3258 |
gen_op_float_cvts_d(); |
| 3259 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3260 |
opn = "cvt.s.d";
|
| 3261 |
break;
|
| 3262 |
case FOP(32, 20): /* cvt.s.w */ |
| 3263 |
CHECK_FR(ctx, fs | fd); |
| 3264 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3265 |
gen_op_float_cvts_w(); |
| 3266 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3267 |
opn = "cvt.s.w";
|
| 3268 |
break;
|
| 3269 |
case FOP(36, 16): /* cvt.w.s */ |
| 3270 |
CHECK_FR(ctx, fs | fd); |
| 3271 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3272 |
gen_op_float_cvtw_s(); |
| 3273 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3274 |
opn = "cvt.w.s";
|
| 3275 |
break;
|
| 3276 |
case FOP(36, 17): /* cvt.w.d */ |
| 3277 |
CHECK_FR(ctx, fs | fd); |
| 3278 |
GEN_LOAD_FREG_FTN(DT0, fs); |
| 3279 |
gen_op_float_cvtw_d(); |
| 3280 |
GEN_STORE_FTN_FREG(fd, WT2); |
| 3281 |
opn = "cvt.w.d";
|
| 3282 |
break;
|
| 3283 |
case FOP(48, 16): |
| 3284 |
case FOP(49, 16): |
| 3285 |
case FOP(50, 16): |
| 3286 |
case FOP(51, 16): |
| 3287 |
case FOP(52, 16): |
| 3288 |
case FOP(53, 16): |
| 3289 |
case FOP(54, 16): |
| 3290 |
case FOP(55, 16): |
| 3291 |
case FOP(56, 16): |
| 3292 |
case FOP(57, 16): |
| 3293 |
case FOP(58, 16): |
| 3294 |
case FOP(59, 16): |
| 3295 |
case FOP(60, 16): |
| 3296 |
case FOP(61, 16): |
| 3297 |
case FOP(62, 16): |
| 3298 |
case FOP(63, 16): |
| 3299 |
CHECK_FR(ctx, fs | ft); |
| 3300 |
GEN_LOAD_FREG_FTN(WT0, fs); |
| 3301 |
GEN_LOAD_FREG_FTN(WT1, ft); |
| 3302 |
gen_cmp_s(func-48);
|
| 3303 |
opn = condnames[func-48];
|
| 3304 |
break;
|
| 3305 |
default:
|
| 3306 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 3307 |
fprintf(logfile, "Invalid FP arith function: %08x %03x %03x %03x\n",
|
| 3308 |
ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
| 3309 |
((ctx->opcode >> 16) & 0x1F)); |
| 3310 |
} |
| 3311 |
generate_exception_err (ctx, EXCP_RI, 1);
|
| 3312 |
return;
|
| 3313 |
} |
| 3314 |
if (binary)
|
| 3315 |
MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
|
| 3316 |
else
|
| 3317 |
MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
|
| 3318 |
} |
| 3319 |
|
| 3320 |
static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf) |
| 3321 |
{
|
| 3322 |
uint32_t ccbit; |
| 3323 |
|
| 3324 |
if (cc)
|
| 3325 |
ccbit = 1 << (24 + cc); |
| 3326 |
else
|
| 3327 |
ccbit = 1 << 23; |
| 3328 |
if (!tf)
|
| 3329 |
gen_op_movf(ccbit, rd, rs); |
| 3330 |
else
|
| 3331 |
gen_op_movt(ccbit, rd, rs); |
| 3332 |
} |
| 3333 |
|
| 3334 |
/* ISA extensions (ASEs) */
|
| 3335 |
/* MIPS16 extension to MIPS32 */
|
| 3336 |
/* SmartMIPS extension to MIPS32 */
|
| 3337 |
|
| 3338 |
#ifdef MIPS_HAS_MIPS64
|
| 3339 |
static void gen_arith64 (DisasContext *ctx, uint32_t opc) |
| 3340 |
{
|
| 3341 |
if (func == 0x02 && rd == 0) { |
| 3342 |
/* NOP */
|
| 3343 |
return;
|
| 3344 |
} |
| 3345 |
if (rs == 0 || rt == 0) { |
| 3346 |
gen_op_reset_T0(); |
| 3347 |
gen_op_save64(); |
| 3348 |
} else {
|
| 3349 |
gen_op_load_gpr_T0(rs); |
| 3350 |
gen_op_load_gpr_T1(rt); |
| 3351 |
gen_op_save64(); |
| 3352 |
if (func & 0x01) |
| 3353 |
gen_op_mul64u(); |
| 3354 |
else
|
| 3355 |
gen_op_mul64s(); |
| 3356 |
} |
| 3357 |
if (func & 0x02) |
| 3358 |
gen_op_add64(); |
| 3359 |
else
|
| 3360 |
gen_op_sub64(); |
| 3361 |
} |
| 3362 |
|
| 3363 |
/* Coprocessor 3 (FPU) */
|
| 3364 |
|
| 3365 |
/* MDMX extension to MIPS64 */
|
| 3366 |
/* MIPS-3D extension to MIPS64 */
|
| 3367 |
|
| 3368 |
#endif
|
| 3369 |
|
| 3370 |
static void gen_blikely(DisasContext *ctx) |
| 3371 |
{
|
| 3372 |
int l1;
|
| 3373 |
l1 = gen_new_label(); |
| 3374 |
gen_op_jnz_T2(l1); |
| 3375 |
gen_op_save_state(ctx->hflags & ~MIPS_HFLAG_BMASK); |
| 3376 |
gen_goto_tb(ctx, 1, ctx->pc + 4); |
| 3377 |
gen_set_label(l1); |
| 3378 |
} |
| 3379 |
|
| 3380 |
static void decode_opc (DisasContext *ctx) |
| 3381 |
{
|
| 3382 |
int32_t offset; |
| 3383 |
int rs, rt, rd, sa;
|
| 3384 |
uint32_t op, op1, op2; |
| 3385 |
int16_t imm; |
| 3386 |
|
| 3387 |
/* make sure instructions are on a word boundary */
|
| 3388 |
if (ctx->pc & 0x3) { |
| 3389 |
generate_exception(ctx, EXCP_AdEL); |
| 3390 |
return;
|
| 3391 |
} |
| 3392 |
|
| 3393 |
if ((ctx->hflags & MIPS_HFLAG_BMASK) == MIPS_HFLAG_BL) {
|
| 3394 |
/* Handle blikely not taken case */
|
| 3395 |
MIPS_DEBUG("blikely condition (%08x)", ctx->pc + 4); |
| 3396 |
gen_blikely(ctx); |
| 3397 |
} |
| 3398 |
op = MASK_OP_MAJOR(ctx->opcode); |
| 3399 |
rs = (ctx->opcode >> 21) & 0x1f; |
| 3400 |
rt = (ctx->opcode >> 16) & 0x1f; |
| 3401 |
rd = (ctx->opcode >> 11) & 0x1f; |
| 3402 |
sa = (ctx->opcode >> 6) & 0x1f; |
| 3403 |
imm = (int16_t)ctx->opcode; |
| 3404 |
switch (op) {
|
| 3405 |
case OPC_SPECIAL:
|
| 3406 |
op1 = MASK_SPECIAL(ctx->opcode); |
| 3407 |
switch (op1) {
|
| 3408 |
case OPC_SLL: /* Arithmetic with immediate */ |
| 3409 |
case OPC_SRL ... OPC_SRA:
|
| 3410 |
gen_arith_imm(ctx, op1, rd, rt, sa); |
| 3411 |
break;
|
| 3412 |
case OPC_SLLV: /* Arithmetic */ |
| 3413 |
case OPC_SRLV ... OPC_SRAV:
|
| 3414 |
case OPC_MOVZ ... OPC_MOVN:
|
| 3415 |
case OPC_ADD ... OPC_NOR:
|
| 3416 |
case OPC_SLT ... OPC_SLTU:
|
| 3417 |
gen_arith(ctx, op1, rd, rs, rt); |
| 3418 |
break;
|
| 3419 |
case OPC_MULT ... OPC_DIVU:
|
| 3420 |
gen_muldiv(ctx, op1, rs, rt); |
| 3421 |
break;
|
| 3422 |
case OPC_JR ... OPC_JALR:
|
| 3423 |
gen_compute_branch(ctx, op1, rs, rd, sa); |
| 3424 |
return;
|
| 3425 |
case OPC_TGE ... OPC_TEQ: /* Traps */ |
| 3426 |
case OPC_TNE:
|
| 3427 |
gen_trap(ctx, op1, rs, rt, -1);
|
| 3428 |
break;
|
| 3429 |
case OPC_MFHI: /* Move from HI/LO */ |
| 3430 |
case OPC_MFLO:
|
| 3431 |
gen_HILO(ctx, op1, rd); |
| 3432 |
break;
|
| 3433 |
case OPC_MTHI:
|
| 3434 |
case OPC_MTLO: /* Move to HI/LO */ |
| 3435 |
gen_HILO(ctx, op1, rs); |
| 3436 |
break;
|
| 3437 |
case OPC_PMON: /* Pmon entry point */ |
| 3438 |
gen_op_pmon(sa); |
| 3439 |
break;
|
| 3440 |
case OPC_SYSCALL:
|
| 3441 |
generate_exception(ctx, EXCP_SYSCALL); |
| 3442 |
ctx->bstate = BS_EXCP; |
| 3443 |
break;
|
| 3444 |
case OPC_BREAK:
|
| 3445 |
generate_exception(ctx, EXCP_BREAK); |
| 3446 |
break;
|
| 3447 |
case OPC_SPIM: /* SPIM ? */ |
| 3448 |
/* Implemented as RI exception for now. */
|
| 3449 |
MIPS_INVAL("spim (unofficial)");
|
| 3450 |
generate_exception(ctx, EXCP_RI); |
| 3451 |
break;
|
| 3452 |
case OPC_SYNC:
|
| 3453 |
/* Treat as a noop. */
|
| 3454 |
break;
|
| 3455 |
|
| 3456 |
case OPC_MOVCI:
|
| 3457 |
gen_op_cp1_enabled(); |
| 3458 |
gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7, |
| 3459 |
(ctx->opcode >> 16) & 1); |
| 3460 |
break;
|
| 3461 |
|
| 3462 |
#ifdef MIPS_HAS_MIPS64
|
| 3463 |
/* MIPS64 specific opcodes */
|
| 3464 |
case OPC_DSLL:
|
| 3465 |
case OPC_DSRL ... OPC_DSRA:
|
| 3466 |
case OPC_DSLL32:
|
| 3467 |
case OPC_DSRL32 ... OPC_DSRA32:
|
| 3468 |
gen_arith_imm(ctx, op1, rd, rt, sa); |
| 3469 |
break;
|
| 3470 |
case OPC_DSLLV:
|
| 3471 |
case OPC_DSRLV ... OPC_DSRAV:
|
| 3472 |
case OPC_DADD ... OPC_DSUBU:
|
| 3473 |
gen_arith(ctx, op1, rd, rs, rt); |
| 3474 |
break;
|
| 3475 |
case OPC_DMULT ... OPC_DDIVU:
|
| 3476 |
gen_muldiv(ctx, op1, rs, rt); |
| 3477 |
break;
|
| 3478 |
#endif
|
| 3479 |
default: /* Invalid */ |
| 3480 |
MIPS_INVAL("special");
|
| 3481 |
generate_exception(ctx, EXCP_RI); |
| 3482 |
break;
|
| 3483 |
} |
| 3484 |
break;
|
| 3485 |
case OPC_SPECIAL2:
|
| 3486 |
op1 = MASK_SPECIAL2(ctx->opcode); |
| 3487 |
switch (op1) {
|
| 3488 |
case OPC_MADD ... OPC_MADDU: /* Multiply and add/sub */ |
| 3489 |
case OPC_MSUB ... OPC_MSUBU:
|
| 3490 |
gen_muldiv(ctx, op1, rs, rt); |
| 3491 |
break;
|
| 3492 |
case OPC_MUL:
|
| 3493 |
gen_arith(ctx, op1, rd, rs, rt); |
| 3494 |
break;
|
| 3495 |
case OPC_CLZ ... OPC_CLO:
|
| 3496 |
gen_cl(ctx, op1, rd, rs); |
| 3497 |
break;
|
| 3498 |
case OPC_SDBBP:
|
| 3499 |
/* XXX: not clear which exception should be raised
|
| 3500 |
* when in debug mode...
|
| 3501 |
*/
|
| 3502 |
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
|
| 3503 |
generate_exception(ctx, EXCP_DBp); |
| 3504 |
} else {
|
| 3505 |
generate_exception(ctx, EXCP_DBp); |
| 3506 |
} |
| 3507 |
/* Treat as a noop */
|
| 3508 |
break;
|
| 3509 |
#ifdef MIPS_HAS_MIPS64
|
| 3510 |
case OPC_DCLZ ... OPC_DCLO:
|
| 3511 |
gen_cl(ctx, op1, rd, rs); |
| 3512 |
break;
|
| 3513 |
#endif
|
| 3514 |
default: /* Invalid */ |
| 3515 |
MIPS_INVAL("special2");
|
| 3516 |
generate_exception(ctx, EXCP_RI); |
| 3517 |
break;
|
| 3518 |
} |
| 3519 |
break;
|
| 3520 |
case OPC_SPECIAL3:
|
| 3521 |
op1 = MASK_SPECIAL3(ctx->opcode); |
| 3522 |
switch (op1) {
|
| 3523 |
case OPC_EXT:
|
| 3524 |
case OPC_INS:
|
| 3525 |
gen_bitops(ctx, op1, rt, rs, sa, rd); |
| 3526 |
break;
|
| 3527 |
case OPC_BSHFL:
|
| 3528 |
op2 = MASK_BSHFL(ctx->opcode); |
| 3529 |
switch (op2) {
|
| 3530 |
case OPC_WSBH:
|
| 3531 |
GEN_LOAD_REG_TN(T1, rt); |
| 3532 |
gen_op_wsbh(); |
| 3533 |
break;
|
| 3534 |
case OPC_SEB:
|
| 3535 |
GEN_LOAD_REG_TN(T1, rt); |
| 3536 |
gen_op_seb(); |
| 3537 |
break;
|
| 3538 |
case OPC_SEH:
|
| 3539 |
GEN_LOAD_REG_TN(T1, rt); |
| 3540 |
gen_op_seh(); |
| 3541 |
break;
|
| 3542 |
default: /* Invalid */ |
| 3543 |
MIPS_INVAL("bshfl");
|
| 3544 |
generate_exception(ctx, EXCP_RI); |
| 3545 |
break;
|
| 3546 |
} |
| 3547 |
GEN_STORE_TN_REG(rd, T0); |
| 3548 |
break;
|
| 3549 |
case OPC_RDHWR:
|
| 3550 |
switch (rd) {
|
| 3551 |
case 0: |
| 3552 |
gen_op_rdhwr_cpunum(); |
| 3553 |
break;
|
| 3554 |
case 1: |
| 3555 |
gen_op_rdhwr_synci_step(); |
| 3556 |
break;
|
| 3557 |
case 2: |
| 3558 |
gen_op_rdhwr_cc(); |
| 3559 |
break;
|
| 3560 |
case 3: |
| 3561 |
gen_op_rdhwr_ccres(); |
| 3562 |
break;
|
| 3563 |
default: /* Invalid */ |
| 3564 |
MIPS_INVAL("rdhwr");
|
| 3565 |
generate_exception(ctx, EXCP_RI); |
| 3566 |
break;
|
| 3567 |
} |
| 3568 |
GEN_STORE_TN_REG(rt, T0); |
| 3569 |
break;
|
| 3570 |
#ifdef MIPS_HAS_MIPS64
|
| 3571 |
case OPC_DEXTM ... OPC_DEXT:
|
| 3572 |
case OPC_DINSM ... OPC_DINS:
|
| 3573 |
gen_bitops(ctx, op1, rt, rs, sa, rd); |
| 3574 |
break;
|
| 3575 |
case OPC_DBSHFL:
|
| 3576 |
op2 = MASK_DBSHFL(ctx->opcode); |
| 3577 |
switch (op2) {
|
| 3578 |
case OPC_DSBH:
|
| 3579 |
GEN_LOAD_REG_TN(T1, rt); |
| 3580 |
gen_op_dsbh(); |
| 3581 |
break;
|
| 3582 |
case OPC_DSHD:
|
| 3583 |
GEN_LOAD_REG_TN(T1, rt); |
| 3584 |
gen_op_dshd(); |
| 3585 |
break;
|
| 3586 |
default: /* Invalid */ |
| 3587 |
MIPS_INVAL("dbshfl");
|
| 3588 |
generate_exception(ctx, EXCP_RI); |
| 3589 |
break;
|
| 3590 |
} |
| 3591 |
GEN_STORE_TN_REG(rd, T0); |
| 3592 |
#endif
|
| 3593 |
default: /* Invalid */ |
| 3594 |
MIPS_INVAL("special3");
|
| 3595 |
generate_exception(ctx, EXCP_RI); |
| 3596 |
break;
|
| 3597 |
} |
| 3598 |
break;
|
| 3599 |
case OPC_REGIMM:
|
| 3600 |
op1 = MASK_REGIMM(ctx->opcode); |
| 3601 |
switch (op1) {
|
| 3602 |
case OPC_BLTZ ... OPC_BGEZL: /* REGIMM branches */ |
| 3603 |
case OPC_BLTZAL ... OPC_BGEZALL:
|
| 3604 |
gen_compute_branch(ctx, op1, rs, -1, imm << 2); |
| 3605 |
return;
|
| 3606 |
case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */ |
| 3607 |
case OPC_TNEI:
|
| 3608 |
gen_trap(ctx, op1, rs, -1, imm);
|
| 3609 |
break;
|
| 3610 |
case OPC_SYNCI:
|
| 3611 |
/* treat as noop */
|
| 3612 |
break;
|
| 3613 |
default: /* Invalid */ |
| 3614 |
MIPS_INVAL("REGIMM");
|
| 3615 |
generate_exception(ctx, EXCP_RI); |
| 3616 |
break;
|
| 3617 |
} |
| 3618 |
break;
|
| 3619 |
case OPC_CP0:
|
| 3620 |
op1 = MASK_CP0(ctx->opcode); |
| 3621 |
switch (op1) {
|
| 3622 |
case OPC_MFC0:
|
| 3623 |
case OPC_MTC0:
|
| 3624 |
#ifdef MIPS_HAS_MIPS64
|
| 3625 |
case OPC_DMFC0:
|
| 3626 |
case OPC_DMTC0:
|
| 3627 |
#endif
|
| 3628 |
gen_cp0(ctx, op1, rt, rd); |
| 3629 |
break;
|
| 3630 |
case OPC_C0_FIRST ... OPC_C0_LAST:
|
| 3631 |
gen_cp0(ctx, MASK_C0(ctx->opcode), rt, rd); |
| 3632 |
break;
|
| 3633 |
case OPC_MFMC0:
|
| 3634 |
op2 = MASK_MFMC0(ctx->opcode); |
| 3635 |
switch (op2) {
|
| 3636 |
case OPC_DI:
|
| 3637 |
gen_op_di(); |
| 3638 |
/* Stop translation as we may have switched the execution mode */
|
| 3639 |
ctx->bstate = BS_STOP; |
| 3640 |
break;
|
| 3641 |
case OPC_EI:
|
| 3642 |
gen_op_ei(); |
| 3643 |
/* Stop translation as we may have switched the execution mode */
|
| 3644 |
ctx->bstate = BS_STOP; |
| 3645 |
break;
|
| 3646 |
default: /* Invalid */ |
| 3647 |
MIPS_INVAL("MFMC0");
|
| 3648 |
generate_exception(ctx, EXCP_RI); |
| 3649 |
break;
|
| 3650 |
} |
| 3651 |
GEN_STORE_TN_REG(rt, T0); |
| 3652 |
break;
|
| 3653 |
/* Shadow registers (not implemented). */
|
| 3654 |
case OPC_RDPGPR:
|
| 3655 |
case OPC_WRPGPR:
|
| 3656 |
default:
|
| 3657 |
generate_exception(ctx, EXCP_RI); |
| 3658 |
break;
|
| 3659 |
} |
| 3660 |
break;
|
| 3661 |
case OPC_ADDI ... OPC_LUI: /* Arithmetic with immediate opcode */ |
| 3662 |
gen_arith_imm(ctx, op, rt, rs, imm); |
| 3663 |
break;
|
| 3664 |
case OPC_J ... OPC_JAL: /* Jump */ |
| 3665 |
offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2; |
| 3666 |
gen_compute_branch(ctx, op, rs, rt, offset); |
| 3667 |
return;
|
| 3668 |
case OPC_BEQ ... OPC_BGTZ: /* Branch */ |
| 3669 |
case OPC_BEQL ... OPC_BGTZL:
|
| 3670 |
gen_compute_branch(ctx, op, rs, rt, imm << 2);
|
| 3671 |
return;
|
| 3672 |
case OPC_LB ... OPC_LWR: /* Load and stores */ |
| 3673 |
case OPC_SB ... OPC_SW:
|
| 3674 |
case OPC_SWR:
|
| 3675 |
case OPC_LL:
|
| 3676 |
case OPC_SC:
|
| 3677 |
gen_ldst(ctx, op, rt, rs, imm); |
| 3678 |
break;
|
| 3679 |
case OPC_CACHE:
|
| 3680 |
/* Treat as a noop */
|
| 3681 |
break;
|
| 3682 |
case OPC_PREF:
|
| 3683 |
/* Treat as a noop */
|
| 3684 |
break;
|
| 3685 |
|
| 3686 |
/* Floating point. */
|
| 3687 |
case OPC_LWC1:
|
| 3688 |
case OPC_LDC1:
|
| 3689 |
case OPC_SWC1:
|
| 3690 |
case OPC_SDC1:
|
| 3691 |
#if defined(MIPS_USES_FPU)
|
| 3692 |
save_cpu_state(ctx, 1);
|
| 3693 |
gen_op_cp1_enabled(); |
| 3694 |
gen_flt_ldst(ctx, op, rt, rs, imm); |
| 3695 |
#else
|
| 3696 |
generate_exception_err(ctx, EXCP_CpU, 1);
|
| 3697 |
#endif
|
| 3698 |
break;
|
| 3699 |
|
| 3700 |
case OPC_CP1:
|
| 3701 |
#if defined(MIPS_USES_FPU)
|
| 3702 |
save_cpu_state(ctx, 1);
|
| 3703 |
gen_op_cp1_enabled(); |
| 3704 |
op1 = MASK_CP1(ctx->opcode); |
| 3705 |
switch (op1) {
|
| 3706 |
case OPC_MFC1:
|
| 3707 |
case OPC_CFC1:
|
| 3708 |
case OPC_MTC1:
|
| 3709 |
case OPC_CTC1:
|
| 3710 |
gen_cp1(ctx, op1, rt, rd); |
| 3711 |
break;
|
| 3712 |
case OPC_BC1:
|
| 3713 |
gen_compute_branch1(ctx, MASK_CP1_BCOND(ctx->opcode), imm << 2);
|
| 3714 |
return;
|
| 3715 |
case OPC_S_FMT:
|
| 3716 |
case OPC_D_FMT:
|
| 3717 |
case OPC_W_FMT:
|
| 3718 |
case OPC_L_FMT:
|
| 3719 |
gen_farith(ctx, MASK_CP1_FUNC(ctx->opcode), rt, rd, sa); |
| 3720 |
break;
|
| 3721 |
default:
|
| 3722 |
generate_exception_err(ctx, EXCP_RI, 1);
|
| 3723 |
break;
|
| 3724 |
} |
| 3725 |
#else
|
| 3726 |
generate_exception_err(ctx, EXCP_CpU, 1);
|
| 3727 |
#endif
|
| 3728 |
break;
|
| 3729 |
|
| 3730 |
/* COP2. */
|
| 3731 |
case OPC_LWC2:
|
| 3732 |
case OPC_LDC2:
|
| 3733 |
case OPC_SWC2:
|
| 3734 |
case OPC_SDC2:
|
| 3735 |
case OPC_CP2:
|
| 3736 |
/* COP2: Not implemented. */
|
| 3737 |
generate_exception_err(ctx, EXCP_CpU, 2);
|
| 3738 |
break;
|
| 3739 |
|
| 3740 |
case OPC_CP3:
|
| 3741 |
gen_op_cp1_enabled(); |
| 3742 |
op1 = MASK_CP3(ctx->opcode); |
| 3743 |
switch (op1) {
|
| 3744 |
/* Not implemented */
|
| 3745 |
default:
|
| 3746 |
generate_exception_err(ctx, EXCP_RI, 1);
|
| 3747 |
break;
|
| 3748 |
} |
| 3749 |
break;
|
| 3750 |
|
| 3751 |
#ifdef MIPS_HAS_MIPS64
|
| 3752 |
/* MIPS64 opcodes */
|
| 3753 |
case OPC_LWU:
|
| 3754 |
case OPC_LDL ... OPC_LDR:
|
| 3755 |
case OPC_SDL ... OPC_SDR:
|
| 3756 |
case OPC_LLD:
|
| 3757 |
case OPC_LD:
|
| 3758 |
case OPC_SCD:
|
| 3759 |
case OPC_SD:
|
| 3760 |
gen_ldst(ctx, op, rt, rs, imm); |
| 3761 |
break;
|
| 3762 |
case OPC_DADDI ... OPC_DADDIU:
|
| 3763 |
gen_arith_imm(ctx, op, rt, rs, imm); |
| 3764 |
break;
|
| 3765 |
#endif
|
| 3766 |
#ifdef MIPS_HAS_MIPS16
|
| 3767 |
case OPC_JALX:
|
| 3768 |
/* MIPS16: Not implemented. */
|
| 3769 |
#endif
|
| 3770 |
#ifdef MIPS_HAS_MDMX
|
| 3771 |
case OPC_MDMX:
|
| 3772 |
/* MDMX: Not implemented. */
|
| 3773 |
#endif
|
| 3774 |
default: /* Invalid */ |
| 3775 |
MIPS_INVAL("");
|
| 3776 |
generate_exception(ctx, EXCP_RI); |
| 3777 |
break;
|
| 3778 |
} |
| 3779 |
if (ctx->hflags & MIPS_HFLAG_BMASK) {
|
| 3780 |
int hflags = ctx->hflags;
|
| 3781 |
/* Branches completion */
|
| 3782 |
ctx->hflags &= ~MIPS_HFLAG_BMASK; |
| 3783 |
ctx->bstate = BS_BRANCH; |
| 3784 |
save_cpu_state(ctx, 0);
|
| 3785 |
switch (hflags & MIPS_HFLAG_BMASK) {
|
| 3786 |
case MIPS_HFLAG_B:
|
| 3787 |
/* unconditional branch */
|
| 3788 |
MIPS_DEBUG("unconditional branch");
|
| 3789 |
gen_goto_tb(ctx, 0, ctx->btarget);
|
| 3790 |
break;
|
| 3791 |
case MIPS_HFLAG_BL:
|
| 3792 |
/* blikely taken case */
|
| 3793 |
MIPS_DEBUG("blikely branch taken");
|
| 3794 |
gen_goto_tb(ctx, 0, ctx->btarget);
|
| 3795 |
break;
|
| 3796 |
case MIPS_HFLAG_BC:
|
| 3797 |
/* Conditional branch */
|
| 3798 |
MIPS_DEBUG("conditional branch");
|
| 3799 |
{
|
| 3800 |
int l1;
|
| 3801 |
l1 = gen_new_label(); |
| 3802 |
gen_op_jnz_T2(l1); |
| 3803 |
gen_goto_tb(ctx, 1, ctx->pc + 4); |
| 3804 |
gen_set_label(l1); |
| 3805 |
gen_goto_tb(ctx, 0, ctx->btarget);
|
| 3806 |
} |
| 3807 |
break;
|
| 3808 |
case MIPS_HFLAG_BR:
|
| 3809 |
/* unconditional branch to register */
|
| 3810 |
MIPS_DEBUG("branch to register");
|
| 3811 |
gen_op_breg(); |
| 3812 |
break;
|
| 3813 |
default:
|
| 3814 |
MIPS_DEBUG("unknown branch");
|
| 3815 |
break;
|
| 3816 |
} |
| 3817 |
} |
| 3818 |
} |
| 3819 |
|
| 3820 |
int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
|
| 3821 |
int search_pc)
|
| 3822 |
{
|
| 3823 |
DisasContext ctx, *ctxp = &ctx; |
| 3824 |
target_ulong pc_start; |
| 3825 |
uint16_t *gen_opc_end; |
| 3826 |
int j, lj = -1; |
| 3827 |
|
| 3828 |
if (search_pc && loglevel)
|
| 3829 |
fprintf (logfile, "search pc %d\n", search_pc);
|
| 3830 |
|
| 3831 |
pc_start = tb->pc; |
| 3832 |
gen_opc_ptr = gen_opc_buf; |
| 3833 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 3834 |
gen_opparam_ptr = gen_opparam_buf; |
| 3835 |
nb_gen_labels = 0;
|
| 3836 |
ctx.pc = pc_start; |
| 3837 |
ctx.saved_pc = -1;
|
| 3838 |
ctx.tb = tb; |
| 3839 |
ctx.bstate = BS_NONE; |
| 3840 |
/* Restore delay slot state from the tb context. */
|
| 3841 |
ctx.hflags = tb->flags; |
| 3842 |
ctx.saved_hflags = ctx.hflags; |
| 3843 |
if (ctx.hflags & MIPS_HFLAG_BR) {
|
| 3844 |
gen_op_restore_breg_target(); |
| 3845 |
} else if (ctx.hflags & MIPS_HFLAG_B) { |
| 3846 |
ctx.btarget = env->btarget; |
| 3847 |
} else if (ctx.hflags & MIPS_HFLAG_BMASK) { |
| 3848 |
/* If we are in the delay slot of a conditional branch,
|
| 3849 |
* restore the branch condition from env->bcond to T2
|
| 3850 |
*/
|
| 3851 |
ctx.btarget = env->btarget; |
| 3852 |
gen_op_restore_bcond(); |
| 3853 |
} |
| 3854 |
#if defined(CONFIG_USER_ONLY)
|
| 3855 |
ctx.mem_idx = 0;
|
| 3856 |
#else
|
| 3857 |
ctx.mem_idx = !((ctx.hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM); |
| 3858 |
#endif
|
| 3859 |
ctx.CP0_Status = env->CP0_Status; |
| 3860 |
#ifdef DEBUG_DISAS
|
| 3861 |
if (loglevel & CPU_LOG_TB_CPU) {
|
| 3862 |
fprintf(logfile, "------------------------------------------------\n");
|
| 3863 |
/* FIXME: This may print out stale hflags from env... */
|
| 3864 |
cpu_dump_state(env, logfile, fprintf, 0);
|
| 3865 |
} |
| 3866 |
#endif
|
| 3867 |
#if defined MIPS_DEBUG_DISAS
|
| 3868 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
| 3869 |
fprintf(logfile, "\ntb %p super %d cond %04x\n",
|
| 3870 |
tb, ctx.mem_idx, ctx.hflags); |
| 3871 |
#endif
|
| 3872 |
while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
|
| 3873 |
if (env->nb_breakpoints > 0) { |
| 3874 |
for(j = 0; j < env->nb_breakpoints; j++) { |
| 3875 |
if (env->breakpoints[j] == ctx.pc) {
|
| 3876 |
save_cpu_state(ctxp, 1);
|
| 3877 |
ctx.bstate = BS_BRANCH; |
| 3878 |
gen_op_debug(); |
| 3879 |
goto done_generating;
|
| 3880 |
} |
| 3881 |
} |
| 3882 |
} |
| 3883 |
|
| 3884 |
if (search_pc) {
|
| 3885 |
j = gen_opc_ptr - gen_opc_buf; |
| 3886 |
if (lj < j) {
|
| 3887 |
lj++; |
| 3888 |
while (lj < j)
|
| 3889 |
gen_opc_instr_start[lj++] = 0;
|
| 3890 |
} |
| 3891 |
gen_opc_pc[lj] = ctx.pc; |
| 3892 |
gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK; |
| 3893 |
gen_opc_instr_start[lj] = 1;
|
| 3894 |
} |
| 3895 |
ctx.opcode = ldl_code(ctx.pc); |
| 3896 |
decode_opc(&ctx); |
| 3897 |
ctx.pc += 4;
|
| 3898 |
|
| 3899 |
if (env->singlestep_enabled)
|
| 3900 |
break;
|
| 3901 |
|
| 3902 |
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) |
| 3903 |
break;
|
| 3904 |
|
| 3905 |
#if defined (MIPS_SINGLE_STEP)
|
| 3906 |
break;
|
| 3907 |
#endif
|
| 3908 |
} |
| 3909 |
if (env->singlestep_enabled) {
|
| 3910 |
save_cpu_state(ctxp, ctx.bstate == BS_NONE); |
| 3911 |
gen_op_debug(); |
| 3912 |
goto done_generating;
|
| 3913 |
} |
| 3914 |
else if (ctx.bstate != BS_BRANCH && ctx.bstate != BS_EXCP) { |
| 3915 |
save_cpu_state(ctxp, 0);
|
| 3916 |
gen_goto_tb(&ctx, 0, ctx.pc);
|
| 3917 |
} |
| 3918 |
gen_op_reset_T0(); |
| 3919 |
/* Generate the return instruction */
|
| 3920 |
gen_op_exit_tb(); |
| 3921 |
done_generating:
|
| 3922 |
*gen_opc_ptr = INDEX_op_end; |
| 3923 |
if (search_pc) {
|
| 3924 |
j = gen_opc_ptr - gen_opc_buf; |
| 3925 |
lj++; |
| 3926 |
while (lj <= j)
|
| 3927 |
gen_opc_instr_start[lj++] = 0;
|
| 3928 |
tb->size = 0;
|
| 3929 |
} else {
|
| 3930 |
tb->size = ctx.pc - pc_start; |
| 3931 |
} |
| 3932 |
#ifdef DEBUG_DISAS
|
| 3933 |
#if defined MIPS_DEBUG_DISAS
|
| 3934 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
| 3935 |
fprintf(logfile, "\n");
|
| 3936 |
#endif
|
| 3937 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 3938 |
fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
|
| 3939 |
target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
|
| 3940 |
fprintf(logfile, "\n");
|
| 3941 |
} |
| 3942 |
if (loglevel & CPU_LOG_TB_OP) {
|
| 3943 |
fprintf(logfile, "OP:\n");
|
| 3944 |
dump_ops(gen_opc_buf, gen_opparam_buf); |
| 3945 |
fprintf(logfile, "\n");
|
| 3946 |
} |
| 3947 |
if (loglevel & CPU_LOG_TB_CPU) {
|
| 3948 |
fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags);
|
| 3949 |
} |
| 3950 |
#endif
|
| 3951 |
|
| 3952 |
return 0; |
| 3953 |
} |
| 3954 |
|
| 3955 |
int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) |
| 3956 |
{
|
| 3957 |
return gen_intermediate_code_internal(env, tb, 0); |
| 3958 |
} |
| 3959 |
|
| 3960 |
int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) |
| 3961 |
{
|
| 3962 |
return gen_intermediate_code_internal(env, tb, 1); |
| 3963 |
} |
| 3964 |
|
| 3965 |
void fpu_dump_state(CPUState *env, FILE *f,
|
| 3966 |
int (*fpu_fprintf)(FILE *f, const char *fmt, ...), |
| 3967 |
int flags)
|
| 3968 |
{
|
| 3969 |
int i;
|
| 3970 |
|
| 3971 |
# define printfpr(fp) do { \ |
| 3972 |
fpu_fprintf(f, "w:%08x d:%08lx%08lx fd:%g fs:%g\n", \
|
| 3973 |
(fp)->w[FP_ENDIAN_IDX], (fp)->w[0], (fp)->w[1], (fp)->fd, (fp)->fs[FP_ENDIAN_IDX]); \ |
| 3974 |
} while(0) |
| 3975 |
|
| 3976 |
fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d\n",
|
| 3977 |
env->fcr0, env->fcr31, |
| 3978 |
(env->CP0_Status & (1 << CP0St_FR)) != 0); |
| 3979 |
fpu_fprintf(f, "FT0: "); printfpr(&env->ft0);
|
| 3980 |
fpu_fprintf(f, "FT1: "); printfpr(&env->ft1);
|
| 3981 |
fpu_fprintf(f, "FT2: "); printfpr(&env->ft2);
|
| 3982 |
for(i = 0; i < 32; i += 2) { |
| 3983 |
fpu_fprintf(f, "%s: ", fregnames[i]);
|
| 3984 |
printfpr(FPR(env, i)); |
| 3985 |
} |
| 3986 |
|
| 3987 |
#undef printfpr
|
| 3988 |
} |
| 3989 |
|
| 3990 |
void dump_fpu (CPUState *env)
|
| 3991 |
{
|
| 3992 |
if (loglevel) {
|
| 3993 |
fprintf(logfile, "pc=0x%08x HI=0x%08x LO=0x%08x ds %04x %08x %d\n",
|
| 3994 |
env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); |
| 3995 |
fpu_dump_state(env, logfile, fprintf, 0);
|
| 3996 |
} |
| 3997 |
} |
| 3998 |
|
| 3999 |
void cpu_dump_state (CPUState *env, FILE *f,
|
| 4000 |
int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
| 4001 |
int flags)
|
| 4002 |
{
|
| 4003 |
uint32_t c0_status; |
| 4004 |
int i;
|
| 4005 |
|
| 4006 |
cpu_fprintf(f, "pc=0x%08x HI=0x%08x LO=0x%08x ds %04x %08x %d\n",
|
| 4007 |
env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); |
| 4008 |
for (i = 0; i < 32; i++) { |
| 4009 |
if ((i & 3) == 0) |
| 4010 |
cpu_fprintf(f, "GPR%02d:", i);
|
| 4011 |
cpu_fprintf(f, " %s %08x", regnames[i], env->gpr[i]);
|
| 4012 |
if ((i & 3) == 3) |
| 4013 |
cpu_fprintf(f, "\n");
|
| 4014 |
} |
| 4015 |
|
| 4016 |
c0_status = env->CP0_Status; |
| 4017 |
if (env->hflags & MIPS_HFLAG_UM)
|
| 4018 |
c0_status |= (1 << CP0St_UM);
|
| 4019 |
if (env->hflags & MIPS_HFLAG_ERL)
|
| 4020 |
c0_status |= (1 << CP0St_ERL);
|
| 4021 |
if (env->hflags & MIPS_HFLAG_EXL)
|
| 4022 |
c0_status |= (1 << CP0St_EXL);
|
| 4023 |
|
| 4024 |
cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x%08x\n",
|
| 4025 |
c0_status, env->CP0_Cause, env->CP0_EPC); |
| 4026 |
cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x%08x\n",
|
| 4027 |
env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr); |
| 4028 |
if (c0_status & (1 << CP0St_CU1)) |
| 4029 |
fpu_dump_state(env, f, cpu_fprintf, flags); |
| 4030 |
} |
| 4031 |
|
| 4032 |
CPUMIPSState *cpu_mips_init (void)
|
| 4033 |
{
|
| 4034 |
CPUMIPSState *env; |
| 4035 |
|
| 4036 |
env = qemu_mallocz(sizeof(CPUMIPSState));
|
| 4037 |
if (!env)
|
| 4038 |
return NULL; |
| 4039 |
cpu_exec_init(env); |
| 4040 |
cpu_reset(env); |
| 4041 |
return env;
|
| 4042 |
} |
| 4043 |
|
| 4044 |
void cpu_reset (CPUMIPSState *env)
|
| 4045 |
{
|
| 4046 |
memset(env, 0, offsetof(CPUMIPSState, breakpoints));
|
| 4047 |
|
| 4048 |
tlb_flush(env, 1);
|
| 4049 |
|
| 4050 |
/* Minimal init */
|
| 4051 |
if (env->hflags & MIPS_HFLAG_BMASK) {
|
| 4052 |
/* If the exception was raised from a delay slot,
|
| 4053 |
* come back to the jump. */
|
| 4054 |
env->CP0_ErrorEPC = env->PC - 4;
|
| 4055 |
env->hflags &= ~MIPS_HFLAG_BMASK; |
| 4056 |
} else {
|
| 4057 |
env->CP0_ErrorEPC = env->PC; |
| 4058 |
} |
| 4059 |
env->PC = 0xBFC00000;
|
| 4060 |
#if defined (MIPS_USES_R4K_TLB)
|
| 4061 |
env->CP0_random = MIPS_TLB_NB - 1;
|
| 4062 |
env->tlb_in_use = MIPS_TLB_NB; |
| 4063 |
#endif
|
| 4064 |
env->CP0_Wired = 0;
|
| 4065 |
/* SMP not implemented */
|
| 4066 |
env->CP0_EBase = 0x80000000;
|
| 4067 |
env->CP0_Config0 = MIPS_CONFIG0; |
| 4068 |
env->CP0_Config1 = MIPS_CONFIG1; |
| 4069 |
env->CP0_Config2 = MIPS_CONFIG2; |
| 4070 |
env->CP0_Config3 = MIPS_CONFIG3; |
| 4071 |
env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL); |
| 4072 |
env->CP0_WatchLo = 0;
|
| 4073 |
env->hflags = MIPS_HFLAG_ERL; |
| 4074 |
/* Count register increments in debug mode, EJTAG version 1 */
|
| 4075 |
env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER); |
| 4076 |
env->CP0_PRid = MIPS_CPU; |
| 4077 |
env->exception_index = EXCP_NONE; |
| 4078 |
#if defined(CONFIG_USER_ONLY)
|
| 4079 |
env->hflags |= MIPS_HFLAG_UM; |
| 4080 |
#endif
|
| 4081 |
#ifdef MIPS_USES_FPU
|
| 4082 |
env->fcr0 = MIPS_FCR0; |
| 4083 |
#endif
|
| 4084 |
/* XXX some guesswork here, values are CPU specific */
|
| 4085 |
env->SYNCI_Step = 16;
|
| 4086 |
env->CCRes = 2;
|
| 4087 |
} |