root / target-mips / translate.c @ ca7c2b1b
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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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/* MFMC0 opcodes */
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#define MASK_MFMC0(op) MASK_CP0(op) | (op & ((0x0C << 11) | (1 << 5))) |
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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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/* 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 |
|
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enum {
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OPC_MFC1 = (0x00 << 21) | OPC_CP1, |
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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, |
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OPC_MTC1 = (0x04 << 21) | OPC_CP1, |
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OPC_DMTC1 = (0x05 << 21) | OPC_CP1, |
338 |
OPC_CTC1 = (0x06 << 21) | OPC_CP1, |
339 |
OPC_MTHCI = (0x07 << 21) | OPC_CP1, |
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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 */ |
343 |
OPC_E_FMT = (0x12 << 21) | OPC_CP1, /* 18: fmt=extended fp */ |
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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 */ |
346 |
OPC_L_FMT = (0x15 << 21) | OPC_CP1, /* 21: fmt=64bit fixed */ |
347 |
}; |
348 |
|
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enum {
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OPC_BC1F = (0x00 << 16) | OPC_BC1, |
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OPC_BC1T = (0x01 << 16) | OPC_BC1, |
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OPC_BC1FL = (0x02 << 16) | OPC_BC1, |
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OPC_BC1TL = (0x03 << 16) | OPC_BC1, |
354 |
}; |
355 |
|
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#define MASK_CP1_BCOND(op) MASK_CP1(op) | (op & (0x3 << 16)) |
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#define MASK_CP1_FUNC(op) MASK_CP1(op) | (op & 0x3F) |
358 |
|
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#define MASK_CP2(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) |
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#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", |
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"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", |
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"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
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"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", }; |
367 |
|
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/* Warning: no function for r0 register (hard wired to zero) */
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#define GEN32(func, NAME) \
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static GenOpFunc *NAME ## _table [32] = { \ |
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NULL, NAME ## 1, NAME ## 2, NAME ## 3, \ |
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NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
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NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
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NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
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NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
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NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
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NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
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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 |
#ifdef MIPS_USES_FPU
|
394 |
|
395 |
static const char *fregnames[] = |
396 |
{ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", |
397 |
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", |
398 |
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", |
399 |
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", }; |
400 |
|
401 |
# define SFGEN32(func, NAME) \
|
402 |
static GenOpFunc *NAME ## _table [32] = { \ |
403 |
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
404 |
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
405 |
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
406 |
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
407 |
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
408 |
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
409 |
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
410 |
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
411 |
}; \ |
412 |
static inline void func(int n) \ |
413 |
{ \ |
414 |
NAME ## _table[n](); \ |
415 |
} |
416 |
|
417 |
# define DFGEN32(func, NAME) \
|
418 |
static GenOpFunc *NAME ## _table [32] = { \ |
419 |
NAME ## 0, 0, NAME ## 2, 0, \ |
420 |
NAME ## 4, 0, NAME ## 6, 0, \ |
421 |
NAME ## 8, 0, NAME ## 10, 0, \ |
422 |
NAME ## 12, 0, NAME ## 14, 0, \ |
423 |
NAME ## 16, 0, NAME ## 18, 0, \ |
424 |
NAME ## 20, 0, NAME ## 22, 0, \ |
425 |
NAME ## 24, 0, NAME ## 26, 0, \ |
426 |
NAME ## 28, 0, NAME ## 30, 0, \ |
427 |
}; \ |
428 |
static inline void func(int n) \ |
429 |
{ \ |
430 |
NAME ## _table[n](); \ |
431 |
} |
432 |
|
433 |
SFGEN32(gen_op_load_fpr_WT0, gen_op_load_fpr_WT0_fpr); |
434 |
SFGEN32(gen_op_store_fpr_WT0, gen_op_store_fpr_WT0_fpr); |
435 |
|
436 |
SFGEN32(gen_op_load_fpr_WT1, gen_op_load_fpr_WT1_fpr); |
437 |
SFGEN32(gen_op_store_fpr_WT1, gen_op_store_fpr_WT1_fpr); |
438 |
|
439 |
SFGEN32(gen_op_load_fpr_WT2, gen_op_load_fpr_WT2_fpr); |
440 |
SFGEN32(gen_op_store_fpr_WT2, gen_op_store_fpr_WT2_fpr); |
441 |
|
442 |
DFGEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fpr); |
443 |
DFGEN32(gen_op_store_fpr_DT0, gen_op_store_fpr_DT0_fpr); |
444 |
|
445 |
DFGEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fpr); |
446 |
DFGEN32(gen_op_store_fpr_DT1, gen_op_store_fpr_DT1_fpr); |
447 |
|
448 |
DFGEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fpr); |
449 |
DFGEN32(gen_op_store_fpr_DT2, gen_op_store_fpr_DT2_fpr); |
450 |
|
451 |
#define FOP_CONDS(fmt) \
|
452 |
static GenOpFunc * cond_ ## fmt ## _table[16] = { \ |
453 |
gen_op_cmp_ ## fmt ## _f, \ |
454 |
gen_op_cmp_ ## fmt ## _un, \ |
455 |
gen_op_cmp_ ## fmt ## _eq, \ |
456 |
gen_op_cmp_ ## fmt ## _ueq, \ |
457 |
gen_op_cmp_ ## fmt ## _olt, \ |
458 |
gen_op_cmp_ ## fmt ## _ult, \ |
459 |
gen_op_cmp_ ## fmt ## _ole, \ |
460 |
gen_op_cmp_ ## fmt ## _ule, \ |
461 |
gen_op_cmp_ ## fmt ## _sf, \ |
462 |
gen_op_cmp_ ## fmt ## _ngle, \ |
463 |
gen_op_cmp_ ## fmt ## _seq, \ |
464 |
gen_op_cmp_ ## fmt ## _ngl, \ |
465 |
gen_op_cmp_ ## fmt ## _lt, \ |
466 |
gen_op_cmp_ ## fmt ## _nge, \ |
467 |
gen_op_cmp_ ## fmt ## _le, \ |
468 |
gen_op_cmp_ ## fmt ## _ngt, \ |
469 |
}; \ |
470 |
static inline void gen_cmp_ ## fmt(int n) \ |
471 |
{ \ |
472 |
cond_ ## fmt ## _table[n](); \ |
473 |
} |
474 |
|
475 |
FOP_CONDS(d) |
476 |
FOP_CONDS(s) |
477 |
|
478 |
#endif /* MIPS_USES_FPU */ |
479 |
|
480 |
typedef struct DisasContext { |
481 |
struct TranslationBlock *tb;
|
482 |
target_ulong pc, saved_pc; |
483 |
uint32_t opcode; |
484 |
/* Routine used to access memory */
|
485 |
int mem_idx;
|
486 |
uint32_t hflags, saved_hflags; |
487 |
uint32_t CP0_Status; |
488 |
int bstate;
|
489 |
target_ulong btarget; |
490 |
} DisasContext; |
491 |
|
492 |
enum {
|
493 |
BS_NONE = 0, /* We go out of the TB without reaching a branch or an |
494 |
* exception condition
|
495 |
*/
|
496 |
BS_STOP = 1, /* We want to stop translation for any reason */ |
497 |
BS_BRANCH = 2, /* We reached a branch condition */ |
498 |
BS_EXCP = 3, /* We reached an exception condition */ |
499 |
}; |
500 |
|
501 |
#if defined MIPS_DEBUG_DISAS
|
502 |
#define MIPS_DEBUG(fmt, args...) \
|
503 |
do { \
|
504 |
if (loglevel & CPU_LOG_TB_IN_ASM) { \
|
505 |
fprintf(logfile, "%08x: %08x " fmt "\n", \ |
506 |
ctx->pc, ctx->opcode , ##args); \ |
507 |
} \ |
508 |
} while (0) |
509 |
#else
|
510 |
#define MIPS_DEBUG(fmt, args...) do { } while(0) |
511 |
#endif
|
512 |
|
513 |
#define MIPS_INVAL(op) \
|
514 |
do { \
|
515 |
MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26, \ |
516 |
ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); \ |
517 |
} while (0) |
518 |
|
519 |
#define GEN_LOAD_REG_TN(Tn, Rn) \
|
520 |
do { \
|
521 |
if (Rn == 0) { \ |
522 |
glue(gen_op_reset_, Tn)(); \ |
523 |
} else { \
|
524 |
glue(gen_op_load_gpr_, Tn)(Rn); \ |
525 |
} \ |
526 |
} while (0) |
527 |
|
528 |
#define GEN_LOAD_IMM_TN(Tn, Imm) \
|
529 |
do { \
|
530 |
if (Imm == 0) { \ |
531 |
glue(gen_op_reset_, Tn)(); \ |
532 |
} else { \
|
533 |
glue(gen_op_set_, Tn)(Imm); \ |
534 |
} \ |
535 |
} while (0) |
536 |
|
537 |
#define GEN_STORE_TN_REG(Rn, Tn) \
|
538 |
do { \
|
539 |
if (Rn != 0) { \ |
540 |
glue(glue(gen_op_store_, Tn),_gpr)(Rn); \ |
541 |
} \ |
542 |
} while (0) |
543 |
|
544 |
#define GEN_LOAD_FREG_FTN(FTn, Fn) \
|
545 |
do { \
|
546 |
glue(gen_op_load_fpr_, FTn)(Fn); \ |
547 |
} while (0) |
548 |
|
549 |
#define GEN_STORE_FTN_FREG(Fn, FTn) \
|
550 |
do { \
|
551 |
glue(gen_op_store_fpr_, FTn)(Fn); \ |
552 |
} while (0) |
553 |
|
554 |
static inline void save_cpu_state (DisasContext *ctx, int do_save_pc) |
555 |
{ |
556 |
#if defined MIPS_DEBUG_DISAS
|
557 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
558 |
fprintf(logfile, "hflags %08x saved %08x\n",
|
559 |
ctx->hflags, ctx->saved_hflags); |
560 |
} |
561 |
#endif
|
562 |
if (do_save_pc && ctx->pc != ctx->saved_pc) {
|
563 |
gen_op_save_pc(ctx->pc); |
564 |
ctx->saved_pc = ctx->pc; |
565 |
} |
566 |
if (ctx->hflags != ctx->saved_hflags) {
|
567 |
gen_op_save_state(ctx->hflags); |
568 |
ctx->saved_hflags = ctx->hflags; |
569 |
if (ctx->hflags & MIPS_HFLAG_BR) {
|
570 |
gen_op_save_breg_target(); |
571 |
} else if (ctx->hflags & MIPS_HFLAG_B) { |
572 |
gen_op_save_btarget(ctx->btarget); |
573 |
} else if (ctx->hflags & MIPS_HFLAG_BMASK) { |
574 |
gen_op_save_bcond(); |
575 |
gen_op_save_btarget(ctx->btarget); |
576 |
} |
577 |
} |
578 |
} |
579 |
|
580 |
static inline void generate_exception_err (DisasContext *ctx, int excp, int err) |
581 |
{ |
582 |
#if defined MIPS_DEBUG_DISAS
|
583 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
584 |
fprintf(logfile, "%s: raise exception %d\n", __func__, excp);
|
585 |
#endif
|
586 |
save_cpu_state(ctx, 1);
|
587 |
if (err == 0) |
588 |
gen_op_raise_exception(excp); |
589 |
else
|
590 |
gen_op_raise_exception_err(excp, err); |
591 |
ctx->bstate = BS_EXCP; |
592 |
} |
593 |
|
594 |
static inline void generate_exception (DisasContext *ctx, int excp) |
595 |
{ |
596 |
generate_exception_err (ctx, excp, 0);
|
597 |
} |
598 |
|
599 |
#if defined(CONFIG_USER_ONLY)
|
600 |
#define op_ldst(name) gen_op_##name##_raw() |
601 |
#define OP_LD_TABLE(width)
|
602 |
#define OP_ST_TABLE(width)
|
603 |
#else
|
604 |
#define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() |
605 |
#define OP_LD_TABLE(width) \
|
606 |
static GenOpFunc *gen_op_l##width[] = { \ |
607 |
&gen_op_l##width##_user, \ |
608 |
&gen_op_l##width##_kernel, \ |
609 |
} |
610 |
#define OP_ST_TABLE(width) \
|
611 |
static GenOpFunc *gen_op_s##width[] = { \ |
612 |
&gen_op_s##width##_user, \ |
613 |
&gen_op_s##width##_kernel, \ |
614 |
} |
615 |
#endif
|
616 |
|
617 |
#ifdef MIPS_HAS_MIPS64
|
618 |
OP_LD_TABLE(d); |
619 |
OP_LD_TABLE(dl); |
620 |
OP_LD_TABLE(dr); |
621 |
OP_ST_TABLE(d); |
622 |
OP_ST_TABLE(dl); |
623 |
OP_ST_TABLE(dr); |
624 |
#endif
|
625 |
OP_LD_TABLE(w); |
626 |
OP_LD_TABLE(wu); |
627 |
OP_LD_TABLE(wl); |
628 |
OP_LD_TABLE(wr); |
629 |
OP_ST_TABLE(w); |
630 |
OP_ST_TABLE(wl); |
631 |
OP_ST_TABLE(wr); |
632 |
OP_LD_TABLE(h); |
633 |
OP_LD_TABLE(hu); |
634 |
OP_ST_TABLE(h); |
635 |
OP_LD_TABLE(b); |
636 |
OP_LD_TABLE(bu); |
637 |
OP_ST_TABLE(b); |
638 |
OP_LD_TABLE(l); |
639 |
OP_ST_TABLE(c); |
640 |
#ifdef MIPS_USES_FPU
|
641 |
OP_LD_TABLE(wc1); |
642 |
OP_ST_TABLE(wc1); |
643 |
OP_LD_TABLE(dc1); |
644 |
OP_ST_TABLE(dc1); |
645 |
#endif
|
646 |
|
647 |
/* Load and store */
|
648 |
static void gen_ldst (DisasContext *ctx, uint32_t opc, int rt, |
649 |
int base, int16_t offset)
|
650 |
{ |
651 |
const char *opn = "unk"; |
652 |
|
653 |
if (base == 0) { |
654 |
GEN_LOAD_IMM_TN(T0, offset); |
655 |
} else if (offset == 0) { |
656 |
gen_op_load_gpr_T0(base); |
657 |
} else {
|
658 |
gen_op_load_gpr_T0(base); |
659 |
gen_op_set_T1(offset); |
660 |
gen_op_add(); |
661 |
} |
662 |
/* Don't do NOP if destination is zero: we must perform the actual
|
663 |
* memory access
|
664 |
*/
|
665 |
switch (opc) {
|
666 |
#ifdef MIPS_HAS_MIPS64
|
667 |
case OPC_LD:
|
668 |
op_ldst(ld); |
669 |
GEN_STORE_TN_REG(rt, T0); |
670 |
opn = "ld";
|
671 |
break;
|
672 |
case OPC_LLD:
|
673 |
op_ldst(lld); |
674 |
GEN_STORE_TN_REG(rt, T0); |
675 |
opn = "lld";
|
676 |
break;
|
677 |
case OPC_SD:
|
678 |
GEN_LOAD_REG_TN(T1, rt); |
679 |
op_ldst(sd); |
680 |
opn = "sd";
|
681 |
break;
|
682 |
case OPC_SCD:
|
683 |
GEN_LOAD_REG_TN(T1, rt); |
684 |
op_ldst(scd); |
685 |
opn = "scd";
|
686 |
break;
|
687 |
case OPC_LDL:
|
688 |
op_ldst(ldl); |
689 |
GEN_STORE_TN_REG(rt, T0); |
690 |
opn = "ldl";
|
691 |
break;
|
692 |
case OPC_SDL:
|
693 |
GEN_LOAD_REG_TN(T1, rt); |
694 |
op_ldst(sdl); |
695 |
opn = "sdl";
|
696 |
break;
|
697 |
case OPC_LDR:
|
698 |
op_ldst(ldr); |
699 |
GEN_STORE_TN_REG(rt, T0); |
700 |
opn = "ldr";
|
701 |
break;
|
702 |
case OPC_SDR:
|
703 |
GEN_LOAD_REG_TN(T1, rt); |
704 |
op_ldst(sdr); |
705 |
opn = "sdr";
|
706 |
break;
|
707 |
#endif
|
708 |
case OPC_LW:
|
709 |
op_ldst(lw); |
710 |
GEN_STORE_TN_REG(rt, T0); |
711 |
opn = "lw";
|
712 |
break;
|
713 |
case OPC_LWU:
|
714 |
op_ldst(lwu); |
715 |
GEN_STORE_TN_REG(rt, T0); |
716 |
opn = "lwu";
|
717 |
break;
|
718 |
case OPC_SW:
|
719 |
GEN_LOAD_REG_TN(T1, rt); |
720 |
op_ldst(sw); |
721 |
opn = "sw";
|
722 |
break;
|
723 |
case OPC_LH:
|
724 |
op_ldst(lh); |
725 |
GEN_STORE_TN_REG(rt, T0); |
726 |
opn = "lh";
|
727 |
break;
|
728 |
case OPC_SH:
|
729 |
GEN_LOAD_REG_TN(T1, rt); |
730 |
op_ldst(sh); |
731 |
opn = "sh";
|
732 |
break;
|
733 |
case OPC_LHU:
|
734 |
op_ldst(lhu); |
735 |
GEN_STORE_TN_REG(rt, T0); |
736 |
opn = "lhu";
|
737 |
break;
|
738 |
case OPC_LB:
|
739 |
op_ldst(lb); |
740 |
GEN_STORE_TN_REG(rt, T0); |
741 |
opn = "lb";
|
742 |
break;
|
743 |
case OPC_SB:
|
744 |
GEN_LOAD_REG_TN(T1, rt); |
745 |
op_ldst(sb); |
746 |
opn = "sb";
|
747 |
break;
|
748 |
case OPC_LBU:
|
749 |
op_ldst(lbu); |
750 |
GEN_STORE_TN_REG(rt, T0); |
751 |
opn = "lbu";
|
752 |
break;
|
753 |
case OPC_LWL:
|
754 |
GEN_LOAD_REG_TN(T1, rt); |
755 |
op_ldst(lwl); |
756 |
GEN_STORE_TN_REG(rt, T0); |
757 |
opn = "lwl";
|
758 |
break;
|
759 |
case OPC_SWL:
|
760 |
GEN_LOAD_REG_TN(T1, rt); |
761 |
op_ldst(swl); |
762 |
opn = "swr";
|
763 |
break;
|
764 |
case OPC_LWR:
|
765 |
GEN_LOAD_REG_TN(T1, rt); |
766 |
op_ldst(lwr); |
767 |
GEN_STORE_TN_REG(rt, T0); |
768 |
opn = "lwr";
|
769 |
break;
|
770 |
case OPC_SWR:
|
771 |
GEN_LOAD_REG_TN(T1, rt); |
772 |
op_ldst(swr); |
773 |
opn = "swr";
|
774 |
break;
|
775 |
case OPC_LL:
|
776 |
op_ldst(ll); |
777 |
GEN_STORE_TN_REG(rt, T0); |
778 |
opn = "ll";
|
779 |
break;
|
780 |
case OPC_SC:
|
781 |
GEN_LOAD_REG_TN(T1, rt); |
782 |
op_ldst(sc); |
783 |
GEN_STORE_TN_REG(rt, T0); |
784 |
opn = "sc";
|
785 |
break;
|
786 |
default:
|
787 |
MIPS_INVAL("load/store");
|
788 |
generate_exception(ctx, EXCP_RI); |
789 |
return;
|
790 |
} |
791 |
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
|
792 |
} |
793 |
|
794 |
#ifdef MIPS_USES_FPU
|
795 |
|
796 |
/* Load and store */
|
797 |
static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft, |
798 |
int base, int16_t offset)
|
799 |
{ |
800 |
const char *opn = "unk"; |
801 |
|
802 |
if (base == 0) { |
803 |
GEN_LOAD_IMM_TN(T0, offset); |
804 |
} else if (offset == 0) { |
805 |
gen_op_load_gpr_T0(base); |
806 |
} else {
|
807 |
gen_op_load_gpr_T0(base); |
808 |
gen_op_set_T1(offset); |
809 |
gen_op_add(); |
810 |
} |
811 |
/* Don't do NOP if destination is zero: we must perform the actual
|
812 |
* memory access
|
813 |
*/
|
814 |
switch (opc) {
|
815 |
case OPC_LWC1:
|
816 |
op_ldst(lwc1); |
817 |
GEN_STORE_FTN_FREG(ft, WT0); |
818 |
opn = "lwc1";
|
819 |
break;
|
820 |
case OPC_SWC1:
|
821 |
GEN_LOAD_FREG_FTN(WT0, ft); |
822 |
op_ldst(swc1); |
823 |
opn = "swc1";
|
824 |
break;
|
825 |
case OPC_LDC1:
|
826 |
op_ldst(ldc1); |
827 |
GEN_STORE_FTN_FREG(ft, DT0); |
828 |
opn = "ldc1";
|
829 |
break;
|
830 |
case OPC_SDC1:
|
831 |
GEN_LOAD_FREG_FTN(DT0, ft); |
832 |
op_ldst(sdc1); |
833 |
opn = "sdc1";
|
834 |
break;
|
835 |
default:
|
836 |
MIPS_INVAL("float load/store");
|
837 |
generate_exception_err(ctx, EXCP_CpU, 1);
|
838 |
return;
|
839 |
} |
840 |
MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
|
841 |
} |
842 |
|
843 |
#endif /* MIPS_USES_FPU */ |
844 |
|
845 |
/* Arithmetic with immediate operand */
|
846 |
static void gen_arith_imm (DisasContext *ctx, uint32_t opc, int rt, |
847 |
int rs, int16_t imm)
|
848 |
{ |
849 |
uint32_t uimm; |
850 |
const char *opn = "unk"; |
851 |
|
852 |
if (rt == 0 && opc != OPC_ADDI && opc != OPC_DADDI) { |
853 |
/* if no destination, treat it as a NOP
|
854 |
* For addi, we must generate the overflow exception when needed.
|
855 |
*/
|
856 |
MIPS_DEBUG("NOP");
|
857 |
return;
|
858 |
} |
859 |
if (opc == OPC_ADDI || opc == OPC_ADDIU ||
|
860 |
opc == OPC_DADDI || opc == OPC_DADDIU || |
861 |
opc == OPC_SLTI || opc == OPC_SLTIU) |
862 |
uimm = (int32_t)imm; /* Sign extend to 32 bits */
|
863 |
else
|
864 |
uimm = (uint16_t)imm; |
865 |
if (opc != OPC_LUI) {
|
866 |
GEN_LOAD_REG_TN(T0, rs); |
867 |
GEN_LOAD_IMM_TN(T1, uimm); |
868 |
} else {
|
869 |
uimm = uimm << 16;
|
870 |
GEN_LOAD_IMM_TN(T0, uimm); |
871 |
} |
872 |
switch (opc) {
|
873 |
case OPC_ADDI:
|
874 |
save_cpu_state(ctx, 1);
|
875 |
gen_op_addo(); |
876 |
opn = "addi";
|
877 |
break;
|
878 |
case OPC_ADDIU:
|
879 |
gen_op_add(); |
880 |
opn = "addiu";
|
881 |
break;
|
882 |
#ifdef MIPS_HAS_MIPS64
|
883 |
case OPC_DADDI:
|
884 |
save_cpu_state(ctx, 1);
|
885 |
gen_op_daddo(); |
886 |
opn = "daddi";
|
887 |
break;
|
888 |
case OPC_DADDIU:
|
889 |
gen_op_dadd(); |
890 |
opn = "daddiu";
|
891 |
break;
|
892 |
#endif
|
893 |
case OPC_SLTI:
|
894 |
gen_op_lt(); |
895 |
opn = "slti";
|
896 |
break;
|
897 |
case OPC_SLTIU:
|
898 |
gen_op_ltu(); |
899 |
opn = "sltiu";
|
900 |
break;
|
901 |
case OPC_ANDI:
|
902 |
gen_op_and(); |
903 |
opn = "andi";
|
904 |
break;
|
905 |
case OPC_ORI:
|
906 |
gen_op_or(); |
907 |
opn = "ori";
|
908 |
break;
|
909 |
case OPC_XORI:
|
910 |
gen_op_xor(); |
911 |
opn = "xori";
|
912 |
break;
|
913 |
case OPC_LUI:
|
914 |
opn = "lui";
|
915 |
break;
|
916 |
case OPC_SLL:
|
917 |
gen_op_sll(); |
918 |
opn = "sll";
|
919 |
break;
|
920 |
case OPC_SRA:
|
921 |
gen_op_sra(); |
922 |
opn = "sra";
|
923 |
break;
|
924 |
case OPC_SRL:
|
925 |
if ((ctx->opcode >> 21) & 1) { |
926 |
gen_op_rotr(); |
927 |
opn = "rotr";
|
928 |
} else {
|
929 |
gen_op_srl(); |
930 |
opn = "srl";
|
931 |
} |
932 |
break;
|
933 |
#ifdef MIPS_HAS_MIPS64
|
934 |
case OPC_DSLL:
|
935 |
gen_op_dsll(); |
936 |
opn = "dsll";
|
937 |
break;
|
938 |
case OPC_DSRA:
|
939 |
gen_op_dsra(); |
940 |
opn = "dsra";
|
941 |
break;
|
942 |
case OPC_DSRL:
|
943 |
if ((ctx->opcode >> 21) & 1) { |
944 |
gen_op_drotr(); |
945 |
opn = "drotr";
|
946 |
} else {
|
947 |
gen_op_dsrl(); |
948 |
opn = "dsrl";
|
949 |
} |
950 |
break;
|
951 |
case OPC_DSLL32:
|
952 |
gen_op_dsll32(); |
953 |
opn = "dsll32";
|
954 |
break;
|
955 |
case OPC_DSRA32:
|
956 |
gen_op_dsra32(); |
957 |
opn = "dsra32";
|
958 |
break;
|
959 |
case OPC_DSRL32:
|
960 |
if ((ctx->opcode >> 21) & 1) { |
961 |
gen_op_drotr32(); |
962 |
opn = "drotr32";
|
963 |
} else {
|
964 |
gen_op_dsrl32(); |
965 |
opn = "dsrl32";
|
966 |
} |
967 |
break;
|
968 |
#endif
|
969 |
default:
|
970 |
MIPS_INVAL("imm arith");
|
971 |
generate_exception(ctx, EXCP_RI); |
972 |
return;
|
973 |
} |
974 |
GEN_STORE_TN_REG(rt, T0); |
975 |
MIPS_DEBUG("%s %s, %s, %x", opn, regnames[rt], regnames[rs], uimm);
|
976 |
} |
977 |
|
978 |
/* Arithmetic */
|
979 |
static void gen_arith (DisasContext *ctx, uint32_t opc, |
980 |
int rd, int rs, int rt) |
981 |
{ |
982 |
const char *opn = "unk"; |
983 |
|
984 |
if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB |
985 |
&& opc != OPC_DADD && opc != OPC_DSUB) { |
986 |
/* if no destination, treat it as a NOP
|
987 |
* For add & sub, we must generate the overflow exception when needed.
|
988 |
*/
|
989 |
MIPS_DEBUG("NOP");
|
990 |
return;
|
991 |
} |
992 |
GEN_LOAD_REG_TN(T0, rs); |
993 |
GEN_LOAD_REG_TN(T1, rt); |
994 |
switch (opc) {
|
995 |
case OPC_ADD:
|
996 |
save_cpu_state(ctx, 1);
|
997 |
gen_op_addo(); |
998 |
opn = "add";
|
999 |
break;
|
1000 |
case OPC_ADDU:
|
1001 |
gen_op_add(); |
1002 |
opn = "addu";
|
1003 |
break;
|
1004 |
case OPC_SUB:
|
1005 |
save_cpu_state(ctx, 1);
|
1006 |
gen_op_subo(); |
1007 |
opn = "sub";
|
1008 |
break;
|
1009 |
case OPC_SUBU:
|
1010 |
gen_op_sub(); |
1011 |
opn = "subu";
|
1012 |
break;
|
1013 |
#ifdef MIPS_HAS_MIPS64
|
1014 |
case OPC_DADD:
|
1015 |
save_cpu_state(ctx, 1);
|
1016 |
gen_op_daddo(); |
1017 |
opn = "dadd";
|
1018 |
break;
|
1019 |
case OPC_DADDU:
|
1020 |
gen_op_dadd(); |
1021 |
opn = "daddu";
|
1022 |
break;
|
1023 |
case OPC_DSUB:
|
1024 |
save_cpu_state(ctx, 1);
|
1025 |
gen_op_dsubo(); |
1026 |
opn = "dsub";
|
1027 |
break;
|
1028 |
case OPC_DSUBU:
|
1029 |
gen_op_dsub(); |
1030 |
opn = "dsubu";
|
1031 |
break;
|
1032 |
#endif
|
1033 |
case OPC_SLT:
|
1034 |
gen_op_lt(); |
1035 |
opn = "slt";
|
1036 |
break;
|
1037 |
case OPC_SLTU:
|
1038 |
gen_op_ltu(); |
1039 |
opn = "sltu";
|
1040 |
break;
|
1041 |
case OPC_AND:
|
1042 |
gen_op_and(); |
1043 |
opn = "and";
|
1044 |
break;
|
1045 |
case OPC_NOR:
|
1046 |
gen_op_nor(); |
1047 |
opn = "nor";
|
1048 |
break;
|
1049 |
case OPC_OR:
|
1050 |
gen_op_or(); |
1051 |
opn = "or";
|
1052 |
break;
|
1053 |
case OPC_XOR:
|
1054 |
gen_op_xor(); |
1055 |
opn = "xor";
|
1056 |
break;
|
1057 |
case OPC_MUL:
|
1058 |
gen_op_mul(); |
1059 |
opn = "mul";
|
1060 |
break;
|
1061 |
case OPC_MOVN:
|
1062 |
gen_op_movn(rd); |
1063 |
opn = "movn";
|
1064 |
goto print;
|
1065 |
case OPC_MOVZ:
|
1066 |
gen_op_movz(rd); |
1067 |
opn = "movz";
|
1068 |
goto print;
|
1069 |
case OPC_SLLV:
|
1070 |
gen_op_sllv(); |
1071 |
opn = "sllv";
|
1072 |
break;
|
1073 |
case OPC_SRAV:
|
1074 |
gen_op_srav(); |
1075 |
opn = "srav";
|
1076 |
break;
|
1077 |
case OPC_SRLV:
|
1078 |
if ((ctx->opcode >> 6) & 1) { |
1079 |
gen_op_rotrv(); |
1080 |
opn = "rotrv";
|
1081 |
} else {
|
1082 |
gen_op_srlv(); |
1083 |
opn = "srlv";
|
1084 |
} |
1085 |
break;
|
1086 |
#ifdef MIPS_HAS_MIPS64
|
1087 |
case OPC_DSLLV:
|
1088 |
gen_op_dsllv(); |
1089 |
opn = "dsllv";
|
1090 |
break;
|
1091 |
case OPC_DSRAV:
|
1092 |
gen_op_dsrav(); |
1093 |
opn = "dsrav";
|
1094 |
break;
|
1095 |
case OPC_DSRLV:
|
1096 |
if ((ctx->opcode >> 6) & 1) { |
1097 |
gen_op_drotrv(); |
1098 |
opn = "drotrv";
|
1099 |
} else {
|
1100 |
gen_op_dsrlv(); |
1101 |
opn = "dsrlv";
|
1102 |
} |
1103 |
break;
|
1104 |
#endif
|
1105 |
default:
|
1106 |
MIPS_INVAL("arith");
|
1107 |
generate_exception(ctx, EXCP_RI); |
1108 |
return;
|
1109 |
} |
1110 |
GEN_STORE_TN_REG(rd, T0); |
1111 |
print:
|
1112 |
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
|
1113 |
} |
1114 |
|
1115 |
/* Arithmetic on HI/LO registers */
|
1116 |
static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg) |
1117 |
{ |
1118 |
const char *opn = "unk"; |
1119 |
|
1120 |
if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) { |
1121 |
/* Treat as a NOP */
|
1122 |
MIPS_DEBUG("NOP");
|
1123 |
return;
|
1124 |
} |
1125 |
switch (opc) {
|
1126 |
case OPC_MFHI:
|
1127 |
gen_op_load_HI(); |
1128 |
GEN_STORE_TN_REG(reg, T0); |
1129 |
opn = "mfhi";
|
1130 |
break;
|
1131 |
case OPC_MFLO:
|
1132 |
gen_op_load_LO(); |
1133 |
GEN_STORE_TN_REG(reg, T0); |
1134 |
opn = "mflo";
|
1135 |
break;
|
1136 |
case OPC_MTHI:
|
1137 |
GEN_LOAD_REG_TN(T0, reg); |
1138 |
gen_op_store_HI(); |
1139 |
opn = "mthi";
|
1140 |
break;
|
1141 |
case OPC_MTLO:
|
1142 |
GEN_LOAD_REG_TN(T0, reg); |
1143 |
gen_op_store_LO(); |
1144 |
opn = "mtlo";
|
1145 |
break;
|
1146 |
default:
|
1147 |
MIPS_INVAL("HILO");
|
1148 |
generate_exception(ctx, EXCP_RI); |
1149 |
return;
|
1150 |
} |
1151 |
MIPS_DEBUG("%s %s", opn, regnames[reg]);
|
1152 |
} |
1153 |
|
1154 |
static void gen_muldiv (DisasContext *ctx, uint32_t opc, |
1155 |
int rs, int rt) |
1156 |
{ |
1157 |
const char *opn = "unk"; |
1158 |
|
1159 |
GEN_LOAD_REG_TN(T0, rs); |
1160 |
GEN_LOAD_REG_TN(T1, rt); |
1161 |
switch (opc) {
|
1162 |
case OPC_DIV:
|
1163 |
gen_op_div(); |
1164 |
opn = "div";
|
1165 |
break;
|
1166 |
case OPC_DIVU:
|
1167 |
gen_op_divu(); |
1168 |
opn = "divu";
|
1169 |
break;
|
1170 |
case OPC_MULT:
|
1171 |
gen_op_mult(); |
1172 |
opn = "mult";
|
1173 |
break;
|
1174 |
case OPC_MULTU:
|
1175 |
gen_op_multu(); |
1176 |
opn = "multu";
|
1177 |
break;
|
1178 |
#ifdef MIPS_HAS_MIPS64
|
1179 |
case OPC_DDIV:
|
1180 |
gen_op_ddiv(); |
1181 |
opn = "ddiv";
|
1182 |
break;
|
1183 |
case OPC_DDIVU:
|
1184 |
gen_op_ddivu(); |
1185 |
opn = "ddivu";
|
1186 |
break;
|
1187 |
case OPC_DMULT:
|
1188 |
gen_op_dmult(); |
1189 |
opn = "dmult";
|
1190 |
break;
|
1191 |
case OPC_DMULTU:
|
1192 |
gen_op_dmultu(); |
1193 |
opn = "dmultu";
|
1194 |
break;
|
1195 |
#endif
|
1196 |
case OPC_MADD:
|
1197 |
gen_op_madd(); |
1198 |
opn = "madd";
|
1199 |
break;
|
1200 |
case OPC_MADDU:
|
1201 |
gen_op_maddu(); |
1202 |
opn = "maddu";
|
1203 |
break;
|
1204 |
case OPC_MSUB:
|
1205 |
gen_op_msub(); |
1206 |
opn = "msub";
|
1207 |
break;
|
1208 |
case OPC_MSUBU:
|
1209 |
gen_op_msubu(); |
1210 |
opn = "msubu";
|
1211 |
break;
|
1212 |
default:
|
1213 |
MIPS_INVAL("mul/div");
|
1214 |
generate_exception(ctx, EXCP_RI); |
1215 |
return;
|
1216 |
} |
1217 |
MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
|
1218 |
} |
1219 |
|
1220 |
static void gen_cl (DisasContext *ctx, uint32_t opc, |
1221 |
int rd, int rs) |
1222 |
{ |
1223 |
const char *opn = "unk"; |
1224 |
if (rd == 0) { |
1225 |
/* Treat as a NOP */
|
1226 |
MIPS_DEBUG("NOP");
|
1227 |
return;
|
1228 |
} |
1229 |
GEN_LOAD_REG_TN(T0, rs); |
1230 |
switch (opc) {
|
1231 |
case OPC_CLO:
|
1232 |
gen_op_clo(); |
1233 |
opn = "clo";
|
1234 |
break;
|
1235 |
case OPC_CLZ:
|
1236 |
gen_op_clz(); |
1237 |
opn = "clz";
|
1238 |
break;
|
1239 |
#ifdef MIPS_HAS_MIPS64
|
1240 |
case OPC_DCLO:
|
1241 |
gen_op_dclo(); |
1242 |
opn = "dclo";
|
1243 |
break;
|
1244 |
case OPC_DCLZ:
|
1245 |
gen_op_dclz(); |
1246 |
opn = "dclz";
|
1247 |
break;
|
1248 |
#endif
|
1249 |
default:
|
1250 |
MIPS_INVAL("CLx");
|
1251 |
generate_exception(ctx, EXCP_RI); |
1252 |
return;
|
1253 |
} |
1254 |
gen_op_store_T0_gpr(rd); |
1255 |
MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
|
1256 |
} |
1257 |
|
1258 |
/* Traps */
|
1259 |
static void gen_trap (DisasContext *ctx, uint32_t opc, |
1260 |
int rs, int rt, int16_t imm) |
1261 |
{ |
1262 |
int cond;
|
1263 |
|
1264 |
cond = 0;
|
1265 |
/* Load needed operands */
|
1266 |
switch (opc) {
|
1267 |
case OPC_TEQ:
|
1268 |
case OPC_TGE:
|
1269 |
case OPC_TGEU:
|
1270 |
case OPC_TLT:
|
1271 |
case OPC_TLTU:
|
1272 |
case OPC_TNE:
|
1273 |
/* Compare two registers */
|
1274 |
if (rs != rt) {
|
1275 |
GEN_LOAD_REG_TN(T0, rs); |
1276 |
GEN_LOAD_REG_TN(T1, rt); |
1277 |
cond = 1;
|
1278 |
} |
1279 |
case OPC_TEQI:
|
1280 |
case OPC_TGEI:
|
1281 |
case OPC_TGEIU:
|
1282 |
case OPC_TLTI:
|
1283 |
case OPC_TLTIU:
|
1284 |
case OPC_TNEI:
|
1285 |
/* Compare register to immediate */
|
1286 |
if (rs != 0 || imm != 0) { |
1287 |
GEN_LOAD_REG_TN(T0, rs); |
1288 |
GEN_LOAD_IMM_TN(T1, (int32_t)imm); |
1289 |
cond = 1;
|
1290 |
} |
1291 |
break;
|
1292 |
} |
1293 |
if (cond == 0) { |
1294 |
switch (opc) {
|
1295 |
case OPC_TEQ: /* rs == rs */ |
1296 |
case OPC_TEQI: /* r0 == 0 */ |
1297 |
case OPC_TGE: /* rs >= rs */ |
1298 |
case OPC_TGEI: /* r0 >= 0 */ |
1299 |
case OPC_TGEU: /* rs >= rs unsigned */ |
1300 |
case OPC_TGEIU: /* r0 >= 0 unsigned */ |
1301 |
/* Always trap */
|
1302 |
gen_op_set_T0(1);
|
1303 |
break;
|
1304 |
case OPC_TLT: /* rs < rs */ |
1305 |
case OPC_TLTI: /* r0 < 0 */ |
1306 |
case OPC_TLTU: /* rs < rs unsigned */ |
1307 |
case OPC_TLTIU: /* r0 < 0 unsigned */ |
1308 |
case OPC_TNE: /* rs != rs */ |
1309 |
case OPC_TNEI: /* r0 != 0 */ |
1310 |
/* Never trap: treat as NOP */
|
1311 |
return;
|
1312 |
default:
|
1313 |
MIPS_INVAL("TRAP");
|
1314 |
generate_exception(ctx, EXCP_RI); |
1315 |
return;
|
1316 |
} |
1317 |
} else {
|
1318 |
switch (opc) {
|
1319 |
case OPC_TEQ:
|
1320 |
case OPC_TEQI:
|
1321 |
gen_op_eq(); |
1322 |
break;
|
1323 |
case OPC_TGE:
|
1324 |
case OPC_TGEI:
|
1325 |
gen_op_ge(); |
1326 |
break;
|
1327 |
case OPC_TGEU:
|
1328 |
case OPC_TGEIU:
|
1329 |
gen_op_geu(); |
1330 |
break;
|
1331 |
case OPC_TLT:
|
1332 |
case OPC_TLTI:
|
1333 |
gen_op_lt(); |
1334 |
break;
|
1335 |
case OPC_TLTU:
|
1336 |
case OPC_TLTIU:
|
1337 |
gen_op_ltu(); |
1338 |
break;
|
1339 |
case OPC_TNE:
|
1340 |
case OPC_TNEI:
|
1341 |
gen_op_ne(); |
1342 |
break;
|
1343 |
default:
|
1344 |
MIPS_INVAL("TRAP");
|
1345 |
generate_exception(ctx, EXCP_RI); |
1346 |
return;
|
1347 |
} |
1348 |
} |
1349 |
save_cpu_state(ctx, 1);
|
1350 |
gen_op_trap(); |
1351 |
ctx->bstate = BS_STOP; |
1352 |
} |
1353 |
|
1354 |
static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) |
1355 |
{ |
1356 |
TranslationBlock *tb; |
1357 |
tb = ctx->tb; |
1358 |
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
1359 |
if (n == 0) |
1360 |
gen_op_goto_tb0(TBPARAM(tb)); |
1361 |
else
|
1362 |
gen_op_goto_tb1(TBPARAM(tb)); |
1363 |
gen_op_save_pc(dest); |
1364 |
gen_op_set_T0((long)tb + n);
|
1365 |
gen_op_exit_tb(); |
1366 |
} else {
|
1367 |
gen_op_save_pc(dest); |
1368 |
gen_op_set_T0(0);
|
1369 |
gen_op_exit_tb(); |
1370 |
} |
1371 |
} |
1372 |
|
1373 |
/* Branches (before delay slot) */
|
1374 |
static void gen_compute_branch (DisasContext *ctx, uint32_t opc, |
1375 |
int rs, int rt, int32_t offset) |
1376 |
{ |
1377 |
target_ulong btarget; |
1378 |
int blink, bcond;
|
1379 |
|
1380 |
btarget = -1;
|
1381 |
blink = 0;
|
1382 |
bcond = 0;
|
1383 |
/* Load needed operands */
|
1384 |
switch (opc) {
|
1385 |
case OPC_BEQ:
|
1386 |
case OPC_BEQL:
|
1387 |
case OPC_BNE:
|
1388 |
case OPC_BNEL:
|
1389 |
/* Compare two registers */
|
1390 |
if (rs != rt) {
|
1391 |
GEN_LOAD_REG_TN(T0, rs); |
1392 |
GEN_LOAD_REG_TN(T1, rt); |
1393 |
bcond = 1;
|
1394 |
} |
1395 |
btarget = ctx->pc + 4 + offset;
|
1396 |
break;
|
1397 |
case OPC_BGEZ:
|
1398 |
case OPC_BGEZAL:
|
1399 |
case OPC_BGEZALL:
|
1400 |
case OPC_BGEZL:
|
1401 |
case OPC_BGTZ:
|
1402 |
case OPC_BGTZL:
|
1403 |
case OPC_BLEZ:
|
1404 |
case OPC_BLEZL:
|
1405 |
case OPC_BLTZ:
|
1406 |
case OPC_BLTZAL:
|
1407 |
case OPC_BLTZALL:
|
1408 |
case OPC_BLTZL:
|
1409 |
/* Compare to zero */
|
1410 |
if (rs != 0) { |
1411 |
gen_op_load_gpr_T0(rs); |
1412 |
bcond = 1;
|
1413 |
} |
1414 |
btarget = ctx->pc + 4 + offset;
|
1415 |
break;
|
1416 |
case OPC_J:
|
1417 |
case OPC_JAL:
|
1418 |
/* Jump to immediate */
|
1419 |
btarget = ((ctx->pc + 4) & 0xF0000000) | offset; |
1420 |
break;
|
1421 |
case OPC_JR:
|
1422 |
case OPC_JALR:
|
1423 |
/* Jump to register */
|
1424 |
if (offset != 0 && offset != 16) { |
1425 |
/* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the
|
1426 |
others are reserved. */
|
1427 |
generate_exception(ctx, EXCP_RI); |
1428 |
return;
|
1429 |
} |
1430 |
GEN_LOAD_REG_TN(T2, rs); |
1431 |
break;
|
1432 |
default:
|
1433 |
MIPS_INVAL("branch/jump");
|
1434 |
generate_exception(ctx, EXCP_RI); |
1435 |
return;
|
1436 |
} |
1437 |
if (bcond == 0) { |
1438 |
/* No condition to be computed */
|
1439 |
switch (opc) {
|
1440 |
case OPC_BEQ: /* rx == rx */ |
1441 |
case OPC_BEQL: /* rx == rx likely */ |
1442 |
case OPC_BGEZ: /* 0 >= 0 */ |
1443 |
case OPC_BGEZL: /* 0 >= 0 likely */ |
1444 |
case OPC_BLEZ: /* 0 <= 0 */ |
1445 |
case OPC_BLEZL: /* 0 <= 0 likely */ |
1446 |
/* Always take */
|
1447 |
ctx->hflags |= MIPS_HFLAG_B; |
1448 |
MIPS_DEBUG("balways");
|
1449 |
break;
|
1450 |
case OPC_BGEZAL: /* 0 >= 0 */ |
1451 |
case OPC_BGEZALL: /* 0 >= 0 likely */ |
1452 |
/* Always take and link */
|
1453 |
blink = 31;
|
1454 |
ctx->hflags |= MIPS_HFLAG_B; |
1455 |
MIPS_DEBUG("balways and link");
|
1456 |
break;
|
1457 |
case OPC_BNE: /* rx != rx */ |
1458 |
case OPC_BGTZ: /* 0 > 0 */ |
1459 |
case OPC_BLTZ: /* 0 < 0 */ |
1460 |
/* Treated as NOP */
|
1461 |
MIPS_DEBUG("bnever (NOP)");
|
1462 |
return;
|
1463 |
case OPC_BLTZAL: /* 0 < 0 */ |
1464 |
gen_op_set_T0(ctx->pc + 8);
|
1465 |
gen_op_store_T0_gpr(31);
|
1466 |
return;
|
1467 |
case OPC_BLTZALL: /* 0 < 0 likely */ |
1468 |
gen_op_set_T0(ctx->pc + 8);
|
1469 |
gen_op_store_T0_gpr(31);
|
1470 |
gen_goto_tb(ctx, 0, ctx->pc + 4); |
1471 |
return;
|
1472 |
case OPC_BNEL: /* rx != rx likely */ |
1473 |
case OPC_BGTZL: /* 0 > 0 likely */ |
1474 |
case OPC_BLTZL: /* 0 < 0 likely */ |
1475 |
/* Skip the instruction in the delay slot */
|
1476 |
MIPS_DEBUG("bnever and skip");
|
1477 |
gen_goto_tb(ctx, 0, ctx->pc + 4); |
1478 |
return;
|
1479 |
case OPC_J:
|
1480 |
ctx->hflags |= MIPS_HFLAG_B; |
1481 |
MIPS_DEBUG("j %08x", btarget);
|
1482 |
break;
|
1483 |
case OPC_JAL:
|
1484 |
blink = 31;
|
1485 |
ctx->hflags |= MIPS_HFLAG_B; |
1486 |
MIPS_DEBUG("jal %08x", btarget);
|
1487 |
break;
|
1488 |
case OPC_JR:
|
1489 |
ctx->hflags |= MIPS_HFLAG_BR; |
1490 |
MIPS_DEBUG("jr %s", regnames[rs]);
|
1491 |
break;
|
1492 |
case OPC_JALR:
|
1493 |
blink = rt; |
1494 |
ctx->hflags |= MIPS_HFLAG_BR; |
1495 |
MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
|
1496 |
break;
|
1497 |
default:
|
1498 |
MIPS_INVAL("branch/jump");
|
1499 |
generate_exception(ctx, EXCP_RI); |
1500 |
return;
|
1501 |
} |
1502 |
} else {
|
1503 |
switch (opc) {
|
1504 |
case OPC_BEQ:
|
1505 |
gen_op_eq(); |
1506 |
MIPS_DEBUG("beq %s, %s, %08x",
|
1507 |
regnames[rs], regnames[rt], btarget); |
1508 |
goto not_likely;
|
1509 |
case OPC_BEQL:
|
1510 |
gen_op_eq(); |
1511 |
MIPS_DEBUG("beql %s, %s, %08x",
|
1512 |
regnames[rs], regnames[rt], btarget); |
1513 |
goto likely;
|
1514 |
case OPC_BNE:
|
1515 |
gen_op_ne(); |
1516 |
MIPS_DEBUG("bne %s, %s, %08x",
|
1517 |
regnames[rs], regnames[rt], btarget); |
1518 |
goto not_likely;
|
1519 |
case OPC_BNEL:
|
1520 |
gen_op_ne(); |
1521 |
MIPS_DEBUG("bnel %s, %s, %08x",
|
1522 |
regnames[rs], regnames[rt], btarget); |
1523 |
goto likely;
|
1524 |
case OPC_BGEZ:
|
1525 |
gen_op_gez(); |
1526 |
MIPS_DEBUG("bgez %s, %08x", regnames[rs], btarget);
|
1527 |
goto not_likely;
|
1528 |
case OPC_BGEZL:
|
1529 |
gen_op_gez(); |
1530 |
MIPS_DEBUG("bgezl %s, %08x", regnames[rs], btarget);
|
1531 |
goto likely;
|
1532 |
case OPC_BGEZAL:
|
1533 |
gen_op_gez(); |
1534 |
MIPS_DEBUG("bgezal %s, %08x", regnames[rs], btarget);
|
1535 |
blink = 31;
|
1536 |
goto not_likely;
|
1537 |
case OPC_BGEZALL:
|
1538 |
gen_op_gez(); |
1539 |
blink = 31;
|
1540 |
MIPS_DEBUG("bgezall %s, %08x", regnames[rs], btarget);
|
1541 |
goto likely;
|
1542 |
case OPC_BGTZ:
|
1543 |
gen_op_gtz(); |
1544 |
MIPS_DEBUG("bgtz %s, %08x", regnames[rs], btarget);
|
1545 |
goto not_likely;
|
1546 |
case OPC_BGTZL:
|
1547 |
gen_op_gtz(); |
1548 |
MIPS_DEBUG("bgtzl %s, %08x", regnames[rs], btarget);
|
1549 |
goto likely;
|
1550 |
case OPC_BLEZ:
|
1551 |
gen_op_lez(); |
1552 |
MIPS_DEBUG("blez %s, %08x", regnames[rs], btarget);
|
1553 |
goto not_likely;
|
1554 |
case OPC_BLEZL:
|
1555 |
gen_op_lez(); |
1556 |
MIPS_DEBUG("blezl %s, %08x", regnames[rs], btarget);
|
1557 |
goto likely;
|
1558 |
case OPC_BLTZ:
|
1559 |
gen_op_ltz(); |
1560 |
MIPS_DEBUG("bltz %s, %08x", regnames[rs], btarget);
|
1561 |
goto not_likely;
|
1562 |
case OPC_BLTZL:
|
1563 |
gen_op_ltz(); |
1564 |
MIPS_DEBUG("bltzl %s, %08x", regnames[rs], btarget);
|
1565 |
goto likely;
|
1566 |
case OPC_BLTZAL:
|
1567 |
gen_op_ltz(); |
1568 |
blink = 31;
|
1569 |
MIPS_DEBUG("bltzal %s, %08x", regnames[rs], btarget);
|
1570 |
not_likely:
|
1571 |
ctx->hflags |= MIPS_HFLAG_BC; |
1572 |
break;
|
1573 |
case OPC_BLTZALL:
|
1574 |
gen_op_ltz(); |
1575 |
blink = 31;
|
1576 |
MIPS_DEBUG("bltzall %s, %08x", regnames[rs], btarget);
|
1577 |
likely:
|
1578 |
ctx->hflags |= MIPS_HFLAG_BL; |
1579 |
break;
|
1580 |
} |
1581 |
gen_op_set_bcond(); |
1582 |
} |
1583 |
MIPS_DEBUG("enter ds: link %d cond %02x target %08x",
|
1584 |
blink, ctx->hflags, btarget); |
1585 |
ctx->btarget = btarget; |
1586 |
if (blink > 0) { |
1587 |
gen_op_set_T0(ctx->pc + 8);
|
1588 |
gen_op_store_T0_gpr(blink); |
1589 |
} |
1590 |
return;
|
1591 |
} |
1592 |
|
1593 |
/* special3 bitfield operations */
|
1594 |
static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt, |
1595 |
int rs, int lsb, int msb) |
1596 |
{ |
1597 |
GEN_LOAD_REG_TN(T1, rs); |
1598 |
switch (opc) {
|
1599 |
case OPC_EXT:
|
1600 |
if (lsb + msb > 31) |
1601 |
goto fail;
|
1602 |
gen_op_ext(lsb, msb + 1);
|
1603 |
break;
|
1604 |
case OPC_DEXTM:
|
1605 |
if (lsb + msb > 63) |
1606 |
goto fail;
|
1607 |
gen_op_ext(lsb, msb + 1 + 32); |
1608 |
break;
|
1609 |
case OPC_DEXTU:
|
1610 |
if (lsb + msb > 63) |
1611 |
goto fail;
|
1612 |
gen_op_ext(lsb + 32, msb + 1); |
1613 |
break;
|
1614 |
case OPC_DEXT:
|
1615 |
gen_op_ext(lsb, msb + 1);
|
1616 |
break;
|
1617 |
case OPC_INS:
|
1618 |
if (lsb > msb)
|
1619 |
goto fail;
|
1620 |
GEN_LOAD_REG_TN(T2, rt); |
1621 |
gen_op_ins(lsb, msb - lsb + 1);
|
1622 |
break;
|
1623 |
case OPC_DINSM:
|
1624 |
if (lsb > msb)
|
1625 |
goto fail;
|
1626 |
GEN_LOAD_REG_TN(T2, rt); |
1627 |
gen_op_ins(lsb, msb - lsb + 1 + 32); |
1628 |
break;
|
1629 |
case OPC_DINSU:
|
1630 |
if (lsb > msb)
|
1631 |
goto fail;
|
1632 |
GEN_LOAD_REG_TN(T2, rt); |
1633 |
gen_op_ins(lsb + 32, msb - lsb + 1); |
1634 |
break;
|
1635 |
case OPC_DINS:
|
1636 |
if (lsb > msb)
|
1637 |
goto fail;
|
1638 |
GEN_LOAD_REG_TN(T2, rt); |
1639 |
gen_op_ins(lsb, msb - lsb + 1);
|
1640 |
break;
|
1641 |
default:
|
1642 |
fail:
|
1643 |
MIPS_INVAL("bitops");
|
1644 |
generate_exception(ctx, EXCP_RI); |
1645 |
return;
|
1646 |
} |
1647 |
GEN_STORE_TN_REG(rt, T0); |
1648 |
} |
1649 |
|
1650 |
/* CP0 (MMU and control) */
|
1651 |
static void gen_mfc0 (DisasContext *ctx, int reg, int sel) |
1652 |
{ |
1653 |
const char *rn = "invalid"; |
1654 |
|
1655 |
switch (reg) {
|
1656 |
case 0: |
1657 |
switch (sel) {
|
1658 |
case 0: |
1659 |
gen_op_mfc0_index(); |
1660 |
rn = "Index";
|
1661 |
break;
|
1662 |
case 1: |
1663 |
// gen_op_mfc0_mvpcontrol(); /* MT ASE */
|
1664 |
rn = "MVPControl";
|
1665 |
// break;
|
1666 |
case 2: |
1667 |
// gen_op_mfc0_mvpconf0(); /* MT ASE */
|
1668 |
rn = "MVPConf0";
|
1669 |
// break;
|
1670 |
case 3: |
1671 |
// gen_op_mfc0_mvpconf1(); /* MT ASE */
|
1672 |
rn = "MVPConf1";
|
1673 |
// break;
|
1674 |
default:
|
1675 |
goto die;
|
1676 |
} |
1677 |
break;
|
1678 |
case 1: |
1679 |
switch (sel) {
|
1680 |
case 0: |
1681 |
gen_op_mfc0_random(); |
1682 |
rn = "Random";
|
1683 |
break;
|
1684 |
case 1: |
1685 |
// gen_op_mfc0_vpecontrol(); /* MT ASE */
|
1686 |
rn = "VPEControl";
|
1687 |
// break;
|
1688 |
case 2: |
1689 |
// gen_op_mfc0_vpeconf0(); /* MT ASE */
|
1690 |
rn = "VPEConf0";
|
1691 |
// break;
|
1692 |
case 3: |
1693 |
// gen_op_mfc0_vpeconf1(); /* MT ASE */
|
1694 |
rn = "VPEConf1";
|
1695 |
// break;
|
1696 |
case 4: |
1697 |
// gen_op_mfc0_YQMask(); /* MT ASE */
|
1698 |
rn = "YQMask";
|
1699 |
// break;
|
1700 |
case 5: |
1701 |
// gen_op_mfc0_vpeschedule(); /* MT ASE */
|
1702 |
rn = "VPESchedule";
|
1703 |
// break;
|
1704 |
case 6: |
1705 |
// gen_op_mfc0_vpeschefback(); /* MT ASE */
|
1706 |
rn = "VPEScheFBack";
|
1707 |
// break;
|
1708 |
case 7: |
1709 |
// gen_op_mfc0_vpeopt(); /* MT ASE */
|
1710 |
rn = "VPEOpt";
|
1711 |
// break;
|
1712 |
default:
|
1713 |
goto die;
|
1714 |
} |
1715 |
break;
|
1716 |
case 2: |
1717 |
switch (sel) {
|
1718 |
case 0: |
1719 |
gen_op_mfc0_entrylo0(); |
1720 |
rn = "EntryLo0";
|
1721 |
break;
|
1722 |
case 1: |
1723 |
// gen_op_mfc0_tcstatus(); /* MT ASE */
|
1724 |
rn = "TCStatus";
|
1725 |
// break;
|
1726 |
case 2: |
1727 |
// gen_op_mfc0_tcbind(); /* MT ASE */
|
1728 |
rn = "TCBind";
|
1729 |
// break;
|
1730 |
case 3: |
1731 |
// gen_op_mfc0_tcrestart(); /* MT ASE */
|
1732 |
rn = "TCRestart";
|
1733 |
// break;
|
1734 |
case 4: |
1735 |
// gen_op_mfc0_tchalt(); /* MT ASE */
|
1736 |
rn = "TCHalt";
|
1737 |
// break;
|
1738 |
case 5: |
1739 |
// gen_op_mfc0_tccontext(); /* MT ASE */
|
1740 |
rn = "TCContext";
|
1741 |
// break;
|
1742 |
case 6: |
1743 |
// gen_op_mfc0_tcschedule(); /* MT ASE */
|
1744 |
rn = "TCSchedule";
|
1745 |
// break;
|
1746 |
case 7: |
1747 |
// gen_op_mfc0_tcschefback(); /* MT ASE */
|
1748 |
rn = "TCScheFBack";
|
1749 |
// break;
|
1750 |
default:
|
1751 |
goto die;
|
1752 |
} |
1753 |
break;
|
1754 |
case 3: |
1755 |
switch (sel) {
|
1756 |
case 0: |
1757 |
gen_op_mfc0_entrylo1(); |
1758 |
rn = "EntryLo1";
|
1759 |
break;
|
1760 |
default:
|
1761 |
goto die;
|
1762 |
} |
1763 |
break;
|
1764 |
case 4: |
1765 |
switch (sel) {
|
1766 |
case 0: |
1767 |
gen_op_mfc0_context(); |
1768 |
rn = "Context";
|
1769 |
break;
|
1770 |
case 1: |
1771 |
// gen_op_mfc0_contextconfig(); /* SmartMIPS ASE */
|
1772 |
rn = "ContextConfig";
|
1773 |
// break;
|
1774 |
default:
|
1775 |
goto die;
|
1776 |
} |
1777 |
break;
|
1778 |
case 5: |
1779 |
switch (sel) {
|
1780 |
case 0: |
1781 |
gen_op_mfc0_pagemask(); |
1782 |
rn = "PageMask";
|
1783 |
break;
|
1784 |
case 1: |
1785 |
gen_op_mfc0_pagegrain(); |
1786 |
rn = "PageGrain";
|
1787 |
break;
|
1788 |
default:
|
1789 |
goto die;
|
1790 |
} |
1791 |
break;
|
1792 |
case 6: |
1793 |
switch (sel) {
|
1794 |
case 0: |
1795 |
gen_op_mfc0_wired(); |
1796 |
rn = "Wired";
|
1797 |
break;
|
1798 |
case 1: |
1799 |
// gen_op_mfc0_srsconf0(); /* shadow registers */
|
1800 |
rn = "SRSConf0";
|
1801 |
// break;
|
1802 |
case 2: |
1803 |
// gen_op_mfc0_srsconf1(); /* shadow registers */
|
1804 |
rn = "SRSConf1";
|
1805 |
// break;
|
1806 |
case 3: |
1807 |
// gen_op_mfc0_srsconf2(); /* shadow registers */
|
1808 |
rn = "SRSConf2";
|
1809 |
// break;
|
1810 |
case 4: |
1811 |
// gen_op_mfc0_srsconf3(); /* shadow registers */
|
1812 |
rn = "SRSConf3";
|
1813 |
// break;
|
1814 |
case 5: |
1815 |
// gen_op_mfc0_srsconf4(); /* shadow registers */
|
1816 |
rn = "SRSConf4";
|
1817 |
// break;
|
1818 |
default:
|
1819 |
goto die;
|
1820 |
} |
1821 |
break;
|
1822 |
case 7: |
1823 |
switch (sel) {
|
1824 |
case 0: |
1825 |
gen_op_mfc0_hwrena(); |
1826 |
rn = "HWREna";
|
1827 |
break;
|
1828 |
default:
|
1829 |
goto die;
|
1830 |
} |
1831 |
break;
|
1832 |
case 8: |
1833 |
switch (sel) {
|
1834 |
case 0: |
1835 |
gen_op_mfc0_badvaddr(); |
1836 |
rn = "BadVaddr";
|
1837 |
break;
|
1838 |
default:
|
1839 |
goto die;
|
1840 |
} |
1841 |
break;
|
1842 |
case 9: |
1843 |
switch (sel) {
|
1844 |
case 0: |
1845 |
gen_op_mfc0_count(); |
1846 |
rn = "Count";
|
1847 |
break;
|
1848 |
/* 6,7 are implementation dependent */
|
1849 |
default:
|
1850 |
goto die;
|
1851 |
} |
1852 |
break;
|
1853 |
case 10: |
1854 |
switch (sel) {
|
1855 |
case 0: |
1856 |
gen_op_mfc0_entryhi(); |
1857 |
rn = "EntryHi";
|
1858 |
break;
|
1859 |
default:
|
1860 |
goto die;
|
1861 |
} |
1862 |
break;
|
1863 |
case 11: |
1864 |
switch (sel) {
|
1865 |
case 0: |
1866 |
gen_op_mfc0_compare(); |
1867 |
rn = "Compare";
|
1868 |
break;
|
1869 |
/* 6,7 are implementation dependent */
|
1870 |
default:
|
1871 |
goto die;
|
1872 |
} |
1873 |
break;
|
1874 |
case 12: |
1875 |
switch (sel) {
|
1876 |
case 0: |
1877 |
gen_op_mfc0_status(); |
1878 |
rn = "Status";
|
1879 |
break;
|
1880 |
case 1: |
1881 |
gen_op_mfc0_intctl(); |
1882 |
rn = "IntCtl";
|
1883 |
break;
|
1884 |
case 2: |
1885 |
gen_op_mfc0_srsctl(); |
1886 |
rn = "SRSCtl";
|
1887 |
break;
|
1888 |
case 3: |
1889 |
// gen_op_mfc0_srsmap(); /* shadow registers */
|
1890 |
rn = "SRSMap";
|
1891 |
// break;
|
1892 |
default:
|
1893 |
goto die;
|
1894 |
} |
1895 |
break;
|
1896 |
case 13: |
1897 |
switch (sel) {
|
1898 |
case 0: |
1899 |
gen_op_mfc0_cause(); |
1900 |
rn = "Cause";
|
1901 |
break;
|
1902 |
default:
|
1903 |
goto die;
|
1904 |
} |
1905 |
break;
|
1906 |
case 14: |
1907 |
switch (sel) {
|
1908 |
case 0: |
1909 |
gen_op_mfc0_epc(); |
1910 |
rn = "EPC";
|
1911 |
break;
|
1912 |
default:
|
1913 |
goto die;
|
1914 |
} |
1915 |
break;
|
1916 |
case 15: |
1917 |
switch (sel) {
|
1918 |
case 0: |
1919 |
gen_op_mfc0_prid(); |
1920 |
rn = "PRid";
|
1921 |
break;
|
1922 |
case 1: |
1923 |
gen_op_mfc0_ebase(); |
1924 |
rn = "EBase";
|
1925 |
break;
|
1926 |
default:
|
1927 |
goto die;
|
1928 |
} |
1929 |
break;
|
1930 |
case 16: |
1931 |
switch (sel) {
|
1932 |
case 0: |
1933 |
gen_op_mfc0_config0(); |
1934 |
rn = "Config";
|
1935 |
break;
|
1936 |
case 1: |
1937 |
gen_op_mfc0_config1(); |
1938 |
rn = "Config1";
|
1939 |
break;
|
1940 |
case 2: |
1941 |
gen_op_mfc0_config2(); |
1942 |
rn = "Config2";
|
1943 |
break;
|
1944 |
case 3: |
1945 |
gen_op_mfc0_config3(); |
1946 |
rn = "Config3";
|
1947 |
break;
|
1948 |
/* 6,7 are implementation dependent */
|
1949 |
default:
|
1950 |
goto die;
|
1951 |
} |
1952 |
break;
|
1953 |
case 17: |
1954 |
switch (sel) {
|
1955 |
case 0: |
1956 |
gen_op_mfc0_lladdr(); |
1957 |
rn = "LLAddr";
|
1958 |
break;
|
1959 |
default:
|
1960 |
goto die;
|
1961 |
} |
1962 |
break;
|
1963 |
case 18: |
1964 |
switch (sel) {
|
1965 |
case 0: |
1966 |
gen_op_mfc0_watchlo0(); |
1967 |
rn = "WatchLo";
|
1968 |
break;
|
1969 |
case 1: |
1970 |
// gen_op_mfc0_watchlo1();
|
1971 |
rn = "WatchLo1";
|
1972 |
// break;
|
1973 |
case 2: |
1974 |
// gen_op_mfc0_watchlo2();
|
1975 |
rn = "WatchLo2";
|
1976 |
// break;
|
1977 |
case 3: |
1978 |
// gen_op_mfc0_watchlo3();
|
1979 |
rn = "WatchLo3";
|
1980 |
// break;
|
1981 |
case 4: |
1982 |
// gen_op_mfc0_watchlo4();
|
1983 |
rn = "WatchLo4";
|
1984 |
// break;
|
1985 |
case 5: |
1986 |
// gen_op_mfc0_watchlo5();
|
1987 |
rn = "WatchLo5";
|
1988 |
// break;
|
1989 |
case 6: |
1990 |
// gen_op_mfc0_watchlo6();
|
1991 |
rn = "WatchLo6";
|
1992 |
// break;
|
1993 |
case 7: |
1994 |
// gen_op_mfc0_watchlo7();
|
1995 |
rn = "WatchLo7";
|
1996 |
// break;
|
1997 |
default:
|
1998 |
goto die;
|
1999 |
} |
2000 |
break;
|
2001 |
case 19: |
2002 |
switch (sel) {
|
2003 |
case 0: |
2004 |
gen_op_mfc0_watchhi0(); |
2005 |
rn = "WatchHi";
|
2006 |
break;
|
2007 |
case 1: |
2008 |
// gen_op_mfc0_watchhi1();
|
2009 |
rn = "WatchHi1";
|
2010 |
// break;
|
2011 |
case 2: |
2012 |
// gen_op_mfc0_watchhi2();
|
2013 |
rn = "WatchHi2";
|
2014 |
// break;
|
2015 |
case 3: |
2016 |
// gen_op_mfc0_watchhi3();
|
2017 |
rn = "WatchHi3";
|
2018 |
// break;
|
2019 |
case 4: |
2020 |
// gen_op_mfc0_watchhi4();
|
2021 |
rn = "WatchHi4";
|
2022 |
// break;
|
2023 |
case 5: |
2024 |
// gen_op_mfc0_watchhi5();
|
2025 |
rn = "WatchHi5";
|
2026 |
// break;
|
2027 |
case 6: |
2028 |
// gen_op_mfc0_watchhi6();
|
2029 |
rn = "WatchHi6";
|
2030 |
// break;
|
2031 |
case 7: |
2032 |
// gen_op_mfc0_watchhi7();
|
2033 |
rn = "WatchHi7";
|
2034 |
// break;
|
2035 |
default:
|
2036 |
goto die;
|
2037 |
} |
2038 |
break;
|
2039 |
case 20: |
2040 |
switch (sel) {
|
2041 |
case 0: |
2042 |
/* 64 bit MMU only */
|
2043 |
gen_op_mfc0_xcontext(); |
2044 |
rn = "XContext";
|
2045 |
break;
|
2046 |
default:
|
2047 |
goto die;
|
2048 |
} |
2049 |
break;
|
2050 |
case 21: |
2051 |
/* Officially reserved, but sel 0 is used for R1x000 framemask */
|
2052 |
switch (sel) {
|
2053 |
case 0: |
2054 |
gen_op_mfc0_framemask(); |
2055 |
rn = "Framemask";
|
2056 |
break;
|
2057 |
default:
|
2058 |
goto die;
|
2059 |
} |
2060 |
break;
|
2061 |
case 22: |
2062 |
/* ignored */
|
2063 |
rn = "'Diagnostic"; /* implementation dependent */ |
2064 |
break;
|
2065 |
case 23: |
2066 |
switch (sel) {
|
2067 |
case 0: |
2068 |
gen_op_mfc0_debug(); /* EJTAG support */
|
2069 |
rn = "Debug";
|
2070 |
break;
|
2071 |
case 1: |
2072 |
// gen_op_mfc0_tracecontrol(); /* PDtrace support */
|
2073 |
rn = "TraceControl";
|
2074 |
// break;
|
2075 |
case 2: |
2076 |
// gen_op_mfc0_tracecontrol2(); /* PDtrace support */
|
2077 |
rn = "TraceControl2";
|
2078 |
// break;
|
2079 |
case 3: |
2080 |
// gen_op_mfc0_usertracedata(); /* PDtrace support */
|
2081 |
rn = "UserTraceData";
|
2082 |
// break;
|
2083 |
case 4: |
2084 |
// gen_op_mfc0_debug(); /* PDtrace support */
|
2085 |
rn = "TraceBPC";
|
2086 |
// break;
|
2087 |
default:
|
2088 |
goto die;
|
2089 |
} |
2090 |
break;
|
2091 |
case 24: |
2092 |
switch (sel) {
|
2093 |
case 0: |
2094 |
gen_op_mfc0_depc(); /* EJTAG support */
|
2095 |
rn = "DEPC";
|
2096 |
break;
|
2097 |
default:
|
2098 |
goto die;
|
2099 |
} |
2100 |
break;
|
2101 |
case 25: |
2102 |
switch (sel) {
|
2103 |
case 0: |
2104 |
gen_op_mfc0_performance0(); |
2105 |
rn = "Performance0";
|
2106 |
break;
|
2107 |
case 1: |
2108 |
// gen_op_mfc0_performance1();
|
2109 |
rn = "Performance1";
|
2110 |
// break;
|
2111 |
case 2: |
2112 |
// gen_op_mfc0_performance2();
|
2113 |
rn = "Performance2";
|
2114 |
// break;
|
2115 |
case 3: |
2116 |
// gen_op_mfc0_performance3();
|
2117 |
rn = "Performance3";
|
2118 |
// break;
|
2119 |
case 4: |
2120 |
// gen_op_mfc0_performance4();
|
2121 |
rn = "Performance4";
|
2122 |
// break;
|
2123 |
case 5: |
2124 |
// gen_op_mfc0_performance5();
|
2125 |
rn = "Performance5";
|
2126 |
// break;
|
2127 |
case 6: |
2128 |
// gen_op_mfc0_performance6();
|
2129 |
rn = "Performance6";
|
2130 |
// break;
|
2131 |
case 7: |
2132 |
// gen_op_mfc0_performance7();
|
2133 |
rn = "Performance7";
|
2134 |
// break;
|
2135 |
default:
|
2136 |
goto die;
|
2137 |
} |
2138 |
break;
|
2139 |
case 26: |
2140 |
rn = "ECC";
|
2141 |
break;
|
2142 |
case 27: |
2143 |
switch (sel) {
|
2144 |
/* ignored */
|
2145 |
case 0 ... 3: |
2146 |
rn = "CacheErr";
|
2147 |
break;
|
2148 |
default:
|
2149 |
goto die;
|
2150 |
} |
2151 |
break;
|
2152 |
case 28: |
2153 |
switch (sel) {
|
2154 |
case 0: |
2155 |
case 2: |
2156 |
case 4: |
2157 |
case 6: |
2158 |
gen_op_mfc0_taglo(); |
2159 |
rn = "TagLo";
|
2160 |
break;
|
2161 |
case 1: |
2162 |
case 3: |
2163 |
case 5: |
2164 |
case 7: |
2165 |
gen_op_mfc0_datalo(); |
2166 |
rn = "DataLo";
|
2167 |
break;
|
2168 |
default:
|
2169 |
goto die;
|
2170 |
} |
2171 |
break;
|
2172 |
case 29: |
2173 |
switch (sel) {
|
2174 |
case 0: |
2175 |
case 2: |
2176 |
case 4: |
2177 |
case 6: |
2178 |
gen_op_mfc0_taghi(); |
2179 |
rn = "TagHi";
|
2180 |
break;
|
2181 |
case 1: |
2182 |
case 3: |
2183 |
case 5: |
2184 |
case 7: |
2185 |
gen_op_mfc0_datahi(); |
2186 |
rn = "DataHi";
|
2187 |
break;
|
2188 |
default:
|
2189 |
goto die;
|
2190 |
} |
2191 |
break;
|
2192 |
case 30: |
2193 |
switch (sel) {
|
2194 |
case 0: |
2195 |
gen_op_mfc0_errorepc(); |
2196 |
rn = "ErrorEPC";
|
2197 |
break;
|
2198 |
default:
|
2199 |
goto die;
|
2200 |
} |
2201 |
break;
|
2202 |
case 31: |
2203 |
switch (sel) {
|
2204 |
case 0: |
2205 |
gen_op_mfc0_desave(); /* EJTAG support */
|
2206 |
rn = "DESAVE";
|
2207 |
break;
|
2208 |
default:
|
2209 |
goto die;
|
2210 |
} |
2211 |
break;
|
2212 |
default:
|
2213 |
goto die;
|
2214 |
} |
2215 |
#if defined MIPS_DEBUG_DISAS
|
2216 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2217 |
fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
|
2218 |
rn, reg, sel); |
2219 |
} |
2220 |
#endif
|
2221 |
return;
|
2222 |
|
2223 |
die:
|
2224 |
#if defined MIPS_DEBUG_DISAS
|
2225 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2226 |
fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
|
2227 |
rn, reg, sel); |
2228 |
} |
2229 |
#endif
|
2230 |
generate_exception(ctx, EXCP_RI); |
2231 |
} |
2232 |
|
2233 |
static void gen_mtc0 (DisasContext *ctx, int reg, int sel) |
2234 |
{ |
2235 |
const char *rn = "invalid"; |
2236 |
|
2237 |
switch (reg) {
|
2238 |
case 0: |
2239 |
switch (sel) {
|
2240 |
case 0: |
2241 |
gen_op_mtc0_index(); |
2242 |
rn = "Index";
|
2243 |
break;
|
2244 |
case 1: |
2245 |
// gen_op_mtc0_mvpcontrol(); /* MT ASE */
|
2246 |
rn = "MVPControl";
|
2247 |
// break;
|
2248 |
case 2: |
2249 |
// gen_op_mtc0_mvpconf0(); /* MT ASE */
|
2250 |
rn = "MVPConf0";
|
2251 |
// break;
|
2252 |
case 3: |
2253 |
// gen_op_mtc0_mvpconf1(); /* MT ASE */
|
2254 |
rn = "MVPConf1";
|
2255 |
// break;
|
2256 |
default:
|
2257 |
goto die;
|
2258 |
} |
2259 |
break;
|
2260 |
case 1: |
2261 |
switch (sel) {
|
2262 |
case 0: |
2263 |
/* ignored */
|
2264 |
rn = "Random";
|
2265 |
break;
|
2266 |
case 1: |
2267 |
// gen_op_mtc0_vpecontrol(); /* MT ASE */
|
2268 |
rn = "VPEControl";
|
2269 |
// break;
|
2270 |
case 2: |
2271 |
// gen_op_mtc0_vpeconf0(); /* MT ASE */
|
2272 |
rn = "VPEConf0";
|
2273 |
// break;
|
2274 |
case 3: |
2275 |
// gen_op_mtc0_vpeconf1(); /* MT ASE */
|
2276 |
rn = "VPEConf1";
|
2277 |
// break;
|
2278 |
case 4: |
2279 |
// gen_op_mtc0_YQMask(); /* MT ASE */
|
2280 |
rn = "YQMask";
|
2281 |
// break;
|
2282 |
case 5: |
2283 |
// gen_op_mtc0_vpeschedule(); /* MT ASE */
|
2284 |
rn = "VPESchedule";
|
2285 |
// break;
|
2286 |
case 6: |
2287 |
// gen_op_mtc0_vpeschefback(); /* MT ASE */
|
2288 |
rn = "VPEScheFBack";
|
2289 |
// break;
|
2290 |
case 7: |
2291 |
// gen_op_mtc0_vpeopt(); /* MT ASE */
|
2292 |
rn = "VPEOpt";
|
2293 |
// break;
|
2294 |
default:
|
2295 |
goto die;
|
2296 |
} |
2297 |
break;
|
2298 |
case 2: |
2299 |
switch (sel) {
|
2300 |
case 0: |
2301 |
gen_op_mtc0_entrylo0(); |
2302 |
rn = "EntryLo0";
|
2303 |
break;
|
2304 |
case 1: |
2305 |
// gen_op_mtc0_tcstatus(); /* MT ASE */
|
2306 |
rn = "TCStatus";
|
2307 |
// break;
|
2308 |
case 2: |
2309 |
// gen_op_mtc0_tcbind(); /* MT ASE */
|
2310 |
rn = "TCBind";
|
2311 |
// break;
|
2312 |
case 3: |
2313 |
// gen_op_mtc0_tcrestart(); /* MT ASE */
|
2314 |
rn = "TCRestart";
|
2315 |
// break;
|
2316 |
case 4: |
2317 |
// gen_op_mtc0_tchalt(); /* MT ASE */
|
2318 |
rn = "TCHalt";
|
2319 |
// break;
|
2320 |
case 5: |
2321 |
// gen_op_mtc0_tccontext(); /* MT ASE */
|
2322 |
rn = "TCContext";
|
2323 |
// break;
|
2324 |
case 6: |
2325 |
// gen_op_mtc0_tcschedule(); /* MT ASE */
|
2326 |
rn = "TCSchedule";
|
2327 |
// break;
|
2328 |
case 7: |
2329 |
// gen_op_mtc0_tcschefback(); /* MT ASE */
|
2330 |
rn = "TCScheFBack";
|
2331 |
// break;
|
2332 |
default:
|
2333 |
goto die;
|
2334 |
} |
2335 |
break;
|
2336 |
case 3: |
2337 |
switch (sel) {
|
2338 |
case 0: |
2339 |
gen_op_mtc0_entrylo1(); |
2340 |
rn = "EntryLo1";
|
2341 |
break;
|
2342 |
default:
|
2343 |
goto die;
|
2344 |
} |
2345 |
break;
|
2346 |
case 4: |
2347 |
switch (sel) {
|
2348 |
case 0: |
2349 |
gen_op_mtc0_context(); |
2350 |
rn = "Context";
|
2351 |
break;
|
2352 |
case 1: |
2353 |
// gen_op_mtc0_contextconfig(); /* SmartMIPS ASE */
|
2354 |
rn = "ContextConfig";
|
2355 |
// break;
|
2356 |
default:
|
2357 |
goto die;
|
2358 |
} |
2359 |
break;
|
2360 |
case 5: |
2361 |
switch (sel) {
|
2362 |
case 0: |
2363 |
gen_op_mtc0_pagemask(); |
2364 |
rn = "PageMask";
|
2365 |
break;
|
2366 |
case 1: |
2367 |
gen_op_mtc0_pagegrain(); |
2368 |
rn = "PageGrain";
|
2369 |
break;
|
2370 |
default:
|
2371 |
goto die;
|
2372 |
} |
2373 |
break;
|
2374 |
case 6: |
2375 |
switch (sel) {
|
2376 |
case 0: |
2377 |
gen_op_mtc0_wired(); |
2378 |
rn = "Wired";
|
2379 |
break;
|
2380 |
case 1: |
2381 |
// gen_op_mtc0_srsconf0(); /* shadow registers */
|
2382 |
rn = "SRSConf0";
|
2383 |
// break;
|
2384 |
case 2: |
2385 |
// gen_op_mtc0_srsconf1(); /* shadow registers */
|
2386 |
rn = "SRSConf1";
|
2387 |
// break;
|
2388 |
case 3: |
2389 |
// gen_op_mtc0_srsconf2(); /* shadow registers */
|
2390 |
rn = "SRSConf2";
|
2391 |
// break;
|
2392 |
case 4: |
2393 |
// gen_op_mtc0_srsconf3(); /* shadow registers */
|
2394 |
rn = "SRSConf3";
|
2395 |
// break;
|
2396 |
case 5: |
2397 |
// gen_op_mtc0_srsconf4(); /* shadow registers */
|
2398 |
rn = "SRSConf4";
|
2399 |
// break;
|
2400 |
default:
|
2401 |
goto die;
|
2402 |
} |
2403 |
break;
|
2404 |
case 7: |
2405 |
switch (sel) {
|
2406 |
case 0: |
2407 |
gen_op_mtc0_hwrena(); |
2408 |
rn = "HWREna";
|
2409 |
break;
|
2410 |
default:
|
2411 |
goto die;
|
2412 |
} |
2413 |
break;
|
2414 |
case 8: |
2415 |
/* ignored */
|
2416 |
rn = "BadVaddr";
|
2417 |
break;
|
2418 |
case 9: |
2419 |
switch (sel) {
|
2420 |
case 0: |
2421 |
gen_op_mtc0_count(); |
2422 |
rn = "Count";
|
2423 |
break;
|
2424 |
/* 6,7 are implementation dependent */
|
2425 |
default:
|
2426 |
goto die;
|
2427 |
} |
2428 |
/* Stop translation as we may have switched the execution mode */
|
2429 |
ctx->bstate = BS_STOP; |
2430 |
break;
|
2431 |
case 10: |
2432 |
switch (sel) {
|
2433 |
case 0: |
2434 |
gen_op_mtc0_entryhi(); |
2435 |
rn = "EntryHi";
|
2436 |
break;
|
2437 |
default:
|
2438 |
goto die;
|
2439 |
} |
2440 |
break;
|
2441 |
case 11: |
2442 |
switch (sel) {
|
2443 |
case 0: |
2444 |
gen_op_mtc0_compare(); |
2445 |
rn = "Compare";
|
2446 |
break;
|
2447 |
/* 6,7 are implementation dependent */
|
2448 |
default:
|
2449 |
goto die;
|
2450 |
} |
2451 |
/* Stop translation as we may have switched the execution mode */
|
2452 |
ctx->bstate = BS_STOP; |
2453 |
break;
|
2454 |
case 12: |
2455 |
switch (sel) {
|
2456 |
case 0: |
2457 |
gen_op_mtc0_status(); |
2458 |
rn = "Status";
|
2459 |
break;
|
2460 |
case 1: |
2461 |
gen_op_mtc0_intctl(); |
2462 |
rn = "IntCtl";
|
2463 |
break;
|
2464 |
case 2: |
2465 |
gen_op_mtc0_srsctl(); |
2466 |
rn = "SRSCtl";
|
2467 |
break;
|
2468 |
case 3: |
2469 |
// gen_op_mtc0_srsmap(); /* shadow registers */
|
2470 |
rn = "SRSMap";
|
2471 |
// break;
|
2472 |
default:
|
2473 |
goto die;
|
2474 |
} |
2475 |
/* Stop translation as we may have switched the execution mode */
|
2476 |
ctx->bstate = BS_STOP; |
2477 |
break;
|
2478 |
case 13: |
2479 |
switch (sel) {
|
2480 |
case 0: |
2481 |
gen_op_mtc0_cause(); |
2482 |
rn = "Cause";
|
2483 |
break;
|
2484 |
default:
|
2485 |
goto die;
|
2486 |
} |
2487 |
/* Stop translation as we may have switched the execution mode */
|
2488 |
ctx->bstate = BS_STOP; |
2489 |
break;
|
2490 |
case 14: |
2491 |
switch (sel) {
|
2492 |
case 0: |
2493 |
gen_op_mtc0_epc(); |
2494 |
rn = "EPC";
|
2495 |
break;
|
2496 |
default:
|
2497 |
goto die;
|
2498 |
} |
2499 |
break;
|
2500 |
case 15: |
2501 |
switch (sel) {
|
2502 |
case 0: |
2503 |
/* ignored */
|
2504 |
rn = "PRid";
|
2505 |
break;
|
2506 |
case 1: |
2507 |
gen_op_mtc0_ebase(); |
2508 |
rn = "EBase";
|
2509 |
break;
|
2510 |
default:
|
2511 |
goto die;
|
2512 |
} |
2513 |
break;
|
2514 |
case 16: |
2515 |
switch (sel) {
|
2516 |
case 0: |
2517 |
gen_op_mtc0_config0(); |
2518 |
rn = "Config";
|
2519 |
break;
|
2520 |
case 1: |
2521 |
/* ignored */
|
2522 |
rn = "Config1";
|
2523 |
break;
|
2524 |
case 2: |
2525 |
gen_op_mtc0_config2(); |
2526 |
rn = "Config2";
|
2527 |
break;
|
2528 |
case 3: |
2529 |
/* ignored */
|
2530 |
rn = "Config3";
|
2531 |
break;
|
2532 |
/* 6,7 are implementation dependent */
|
2533 |
default:
|
2534 |
rn = "Invalid config selector";
|
2535 |
goto die;
|
2536 |
} |
2537 |
/* Stop translation as we may have switched the execution mode */
|
2538 |
ctx->bstate = BS_STOP; |
2539 |
break;
|
2540 |
case 17: |
2541 |
switch (sel) {
|
2542 |
case 0: |
2543 |
/* ignored */
|
2544 |
rn = "LLAddr";
|
2545 |
break;
|
2546 |
default:
|
2547 |
goto die;
|
2548 |
} |
2549 |
break;
|
2550 |
case 18: |
2551 |
switch (sel) {
|
2552 |
case 0: |
2553 |
gen_op_mtc0_watchlo0(); |
2554 |
rn = "WatchLo";
|
2555 |
break;
|
2556 |
case 1: |
2557 |
// gen_op_mtc0_watchlo1();
|
2558 |
rn = "WatchLo1";
|
2559 |
// break;
|
2560 |
case 2: |
2561 |
// gen_op_mtc0_watchlo2();
|
2562 |
rn = "WatchLo2";
|
2563 |
// break;
|
2564 |
case 3: |
2565 |
// gen_op_mtc0_watchlo3();
|
2566 |
rn = "WatchLo3";
|
2567 |
// break;
|
2568 |
case 4: |
2569 |
// gen_op_mtc0_watchlo4();
|
2570 |
rn = "WatchLo4";
|
2571 |
// break;
|
2572 |
case 5: |
2573 |
// gen_op_mtc0_watchlo5();
|
2574 |
rn = "WatchLo5";
|
2575 |
// break;
|
2576 |
case 6: |
2577 |
// gen_op_mtc0_watchlo6();
|
2578 |
rn = "WatchLo6";
|
2579 |
// break;
|
2580 |
case 7: |
2581 |
// gen_op_mtc0_watchlo7();
|
2582 |
rn = "WatchLo7";
|
2583 |
// break;
|
2584 |
default:
|
2585 |
goto die;
|
2586 |
} |
2587 |
break;
|
2588 |
case 19: |
2589 |
switch (sel) {
|
2590 |
case 0: |
2591 |
gen_op_mtc0_watchhi0(); |
2592 |
rn = "WatchHi";
|
2593 |
break;
|
2594 |
case 1: |
2595 |
// gen_op_mtc0_watchhi1();
|
2596 |
rn = "WatchHi1";
|
2597 |
// break;
|
2598 |
case 2: |
2599 |
// gen_op_mtc0_watchhi2();
|
2600 |
rn = "WatchHi2";
|
2601 |
// break;
|
2602 |
case 3: |
2603 |
// gen_op_mtc0_watchhi3();
|
2604 |
rn = "WatchHi3";
|
2605 |
// break;
|
2606 |
case 4: |
2607 |
// gen_op_mtc0_watchhi4();
|
2608 |
rn = "WatchHi4";
|
2609 |
// break;
|
2610 |
case 5: |
2611 |
// gen_op_mtc0_watchhi5();
|
2612 |
rn = "WatchHi5";
|
2613 |
// break;
|
2614 |
case 6: |
2615 |
// gen_op_mtc0_watchhi6();
|
2616 |
rn = "WatchHi6";
|
2617 |
// break;
|
2618 |
case 7: |
2619 |
// gen_op_mtc0_watchhi7();
|
2620 |
rn = "WatchHi7";
|
2621 |
// break;
|
2622 |
default:
|
2623 |
goto die;
|
2624 |
} |
2625 |
break;
|
2626 |
case 20: |
2627 |
switch (sel) {
|
2628 |
case 0: |
2629 |
/* 64 bit MMU only */
|
2630 |
gen_op_mtc0_xcontext(); |
2631 |
rn = "XContext";
|
2632 |
break;
|
2633 |
default:
|
2634 |
goto die;
|
2635 |
} |
2636 |
break;
|
2637 |
case 21: |
2638 |
/* Officially reserved, but sel 0 is used for R1x000 framemask */
|
2639 |
switch (sel) {
|
2640 |
case 0: |
2641 |
gen_op_mtc0_framemask(); |
2642 |
rn = "Framemask";
|
2643 |
break;
|
2644 |
default:
|
2645 |
goto die;
|
2646 |
} |
2647 |
break;
|
2648 |
case 22: |
2649 |
/* ignored */
|
2650 |
rn = "Diagnostic"; /* implementation dependent */ |
2651 |
break;
|
2652 |
case 23: |
2653 |
switch (sel) {
|
2654 |
case 0: |
2655 |
gen_op_mtc0_debug(); /* EJTAG support */
|
2656 |
rn = "Debug";
|
2657 |
break;
|
2658 |
case 1: |
2659 |
// gen_op_mtc0_tracecontrol(); /* PDtrace support */
|
2660 |
rn = "TraceControl";
|
2661 |
// break;
|
2662 |
case 2: |
2663 |
// gen_op_mtc0_tracecontrol2(); /* PDtrace support */
|
2664 |
rn = "TraceControl2";
|
2665 |
// break;
|
2666 |
case 3: |
2667 |
// gen_op_mtc0_usertracedata(); /* PDtrace support */
|
2668 |
rn = "UserTraceData";
|
2669 |
// break;
|
2670 |
case 4: |
2671 |
// gen_op_mtc0_debug(); /* PDtrace support */
|
2672 |
rn = "TraceBPC";
|
2673 |
// break;
|
2674 |
default:
|
2675 |
goto die;
|
2676 |
} |
2677 |
/* Stop translation as we may have switched the execution mode */
|
2678 |
ctx->bstate = BS_STOP; |
2679 |
break;
|
2680 |
case 24: |
2681 |
switch (sel) {
|
2682 |
case 0: |
2683 |
gen_op_mtc0_depc(); /* EJTAG support */
|
2684 |
rn = "DEPC";
|
2685 |
break;
|
2686 |
default:
|
2687 |
goto die;
|
2688 |
} |
2689 |
break;
|
2690 |
case 25: |
2691 |
switch (sel) {
|
2692 |
case 0: |
2693 |
gen_op_mtc0_performance0(); |
2694 |
rn = "Performance0";
|
2695 |
break;
|
2696 |
case 1: |
2697 |
// gen_op_mtc0_performance1();
|
2698 |
rn = "Performance1";
|
2699 |
// break;
|
2700 |
case 2: |
2701 |
// gen_op_mtc0_performance2();
|
2702 |
rn = "Performance2";
|
2703 |
// break;
|
2704 |
case 3: |
2705 |
// gen_op_mtc0_performance3();
|
2706 |
rn = "Performance3";
|
2707 |
// break;
|
2708 |
case 4: |
2709 |
// gen_op_mtc0_performance4();
|
2710 |
rn = "Performance4";
|
2711 |
// break;
|
2712 |
case 5: |
2713 |
// gen_op_mtc0_performance5();
|
2714 |
rn = "Performance5";
|
2715 |
// break;
|
2716 |
case 6: |
2717 |
// gen_op_mtc0_performance6();
|
2718 |
rn = "Performance6";
|
2719 |
// break;
|
2720 |
case 7: |
2721 |
// gen_op_mtc0_performance7();
|
2722 |
rn = "Performance7";
|
2723 |
// break;
|
2724 |
default:
|
2725 |
goto die;
|
2726 |
} |
2727 |
break;
|
2728 |
case 26: |
2729 |
/* ignored */
|
2730 |
rn = "ECC";
|
2731 |
break;
|
2732 |
case 27: |
2733 |
switch (sel) {
|
2734 |
case 0 ... 3: |
2735 |
/* ignored */
|
2736 |
rn = "CacheErr";
|
2737 |
break;
|
2738 |
default:
|
2739 |
goto die;
|
2740 |
} |
2741 |
break;
|
2742 |
case 28: |
2743 |
switch (sel) {
|
2744 |
case 0: |
2745 |
case 2: |
2746 |
case 4: |
2747 |
case 6: |
2748 |
gen_op_mtc0_taglo(); |
2749 |
rn = "TagLo";
|
2750 |
break;
|
2751 |
case 1: |
2752 |
case 3: |
2753 |
case 5: |
2754 |
case 7: |
2755 |
gen_op_mtc0_datalo(); |
2756 |
rn = "DataLo";
|
2757 |
break;
|
2758 |
default:
|
2759 |
goto die;
|
2760 |
} |
2761 |
break;
|
2762 |
case 29: |
2763 |
switch (sel) {
|
2764 |
case 0: |
2765 |
case 2: |
2766 |
case 4: |
2767 |
case 6: |
2768 |
gen_op_mtc0_taghi(); |
2769 |
rn = "TagHi";
|
2770 |
break;
|
2771 |
case 1: |
2772 |
case 3: |
2773 |
case 5: |
2774 |
case 7: |
2775 |
gen_op_mtc0_datahi(); |
2776 |
rn = "DataHi";
|
2777 |
break;
|
2778 |
default:
|
2779 |
rn = "invalid sel";
|
2780 |
goto die;
|
2781 |
} |
2782 |
break;
|
2783 |
case 30: |
2784 |
switch (sel) {
|
2785 |
case 0: |
2786 |
gen_op_mtc0_errorepc(); |
2787 |
rn = "ErrorEPC";
|
2788 |
break;
|
2789 |
default:
|
2790 |
goto die;
|
2791 |
} |
2792 |
break;
|
2793 |
case 31: |
2794 |
switch (sel) {
|
2795 |
case 0: |
2796 |
gen_op_mtc0_desave(); /* EJTAG support */
|
2797 |
rn = "DESAVE";
|
2798 |
break;
|
2799 |
default:
|
2800 |
goto die;
|
2801 |
} |
2802 |
/* Stop translation as we may have switched the execution mode */
|
2803 |
ctx->bstate = BS_STOP; |
2804 |
break;
|
2805 |
default:
|
2806 |
goto die;
|
2807 |
} |
2808 |
#if defined MIPS_DEBUG_DISAS
|
2809 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2810 |
fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
|
2811 |
rn, reg, sel); |
2812 |
} |
2813 |
#endif
|
2814 |
return;
|
2815 |
|
2816 |
die:
|
2817 |
#if defined MIPS_DEBUG_DISAS
|
2818 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2819 |
fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
|
2820 |
rn, reg, sel); |
2821 |
} |
2822 |
#endif
|
2823 |
generate_exception(ctx, EXCP_RI); |
2824 |
} |
2825 |
|
2826 |
static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd) |
2827 |
{ |
2828 |
const char *opn = "unk"; |
2829 |
|
2830 |
if ((!ctx->CP0_Status & (1 << CP0St_CU0) && |
2831 |
(ctx->hflags & MIPS_HFLAG_UM)) && |
2832 |
!(ctx->hflags & MIPS_HFLAG_ERL) && |
2833 |
!(ctx->hflags & MIPS_HFLAG_EXL)) { |
2834 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2835 |
fprintf(logfile, "CP0 is not usable\n");
|
2836 |
} |
2837 |
generate_exception (ctx, EXCP_CpU); |
2838 |
return;
|
2839 |
} |
2840 |
|
2841 |
switch (opc) {
|
2842 |
case OPC_MFC0:
|
2843 |
if (rt == 0) { |
2844 |
/* Treat as NOP */
|
2845 |
return;
|
2846 |
} |
2847 |
gen_mfc0(ctx, rd, ctx->opcode & 0x7);
|
2848 |
gen_op_store_T0_gpr(rt); |
2849 |
opn = "mfc0";
|
2850 |
break;
|
2851 |
case OPC_MTC0:
|
2852 |
/* If we get an exception, we want to restart at next instruction */
|
2853 |
/* XXX: breaks for mtc in delay slot */
|
2854 |
ctx->pc += 4;
|
2855 |
save_cpu_state(ctx, 1);
|
2856 |
ctx->pc -= 4;
|
2857 |
GEN_LOAD_REG_TN(T0, rt); |
2858 |
gen_mtc0(ctx, rd, ctx->opcode & 0x7);
|
2859 |
opn = "mtc0";
|
2860 |
break;
|
2861 |
#if defined(MIPS_USES_R4K_TLB)
|
2862 |
case OPC_TLBWI:
|
2863 |
gen_op_tlbwi(); |
2864 |
opn = "tlbwi";
|
2865 |
break;
|
2866 |
case OPC_TLBWR:
|
2867 |
gen_op_tlbwr(); |
2868 |
opn = "tlbwr";
|
2869 |
break;
|
2870 |
case OPC_TLBP:
|
2871 |
gen_op_tlbp(); |
2872 |
opn = "tlbp";
|
2873 |
break;
|
2874 |
case OPC_TLBR:
|
2875 |
gen_op_tlbr(); |
2876 |
opn = "tlbr";
|
2877 |
break;
|
2878 |
#endif
|
2879 |
case OPC_ERET:
|
2880 |
opn = "eret";
|
2881 |
save_cpu_state(ctx, 0);
|
2882 |
gen_op_eret(); |
2883 |
ctx->bstate = BS_EXCP; |
2884 |
break;
|
2885 |
case OPC_DERET:
|
2886 |
opn = "deret";
|
2887 |
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
|
2888 |
generate_exception(ctx, EXCP_RI); |
2889 |
} else {
|
2890 |
save_cpu_state(ctx, 0);
|
2891 |
gen_op_deret(); |
2892 |
ctx->bstate = BS_EXCP; |
2893 |
} |
2894 |
break;
|
2895 |
case OPC_WAIT:
|
2896 |
opn = "wait";
|
2897 |
/* If we get an exception, we want to restart at next instruction */
|
2898 |
ctx->pc += 4;
|
2899 |
save_cpu_state(ctx, 1);
|
2900 |
ctx->pc -= 4;
|
2901 |
gen_op_wait(); |
2902 |
ctx->bstate = BS_EXCP; |
2903 |
break;
|
2904 |
default:
|
2905 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2906 |
fprintf(logfile, "Invalid CP0 opcode: %08x %03x %03x %03x\n",
|
2907 |
ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
2908 |
((ctx->opcode >> 16) & 0x1F)); |
2909 |
} |
2910 |
generate_exception(ctx, EXCP_RI); |
2911 |
return;
|
2912 |
} |
2913 |
MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
|
2914 |
} |
2915 |
|
2916 |
#ifdef MIPS_USES_FPU
|
2917 |
|
2918 |
/* CP1 Branches (before delay slot) */
|
2919 |
static void gen_compute_branch1 (DisasContext *ctx, uint32_t op, |
2920 |
int32_t offset) |
2921 |
{ |
2922 |
target_ulong btarget; |
2923 |
|
2924 |
btarget = ctx->pc + 4 + offset;
|
2925 |
|
2926 |
switch (op) {
|
2927 |
case OPC_BC1F:
|
2928 |
gen_op_bc1f(); |
2929 |
MIPS_DEBUG("bc1f %08x", btarget);
|
2930 |
goto not_likely;
|
2931 |
case OPC_BC1FL:
|
2932 |
gen_op_bc1f(); |
2933 |
MIPS_DEBUG("bc1fl %08x", btarget);
|
2934 |
goto likely;
|
2935 |
case OPC_BC1T:
|
2936 |
gen_op_bc1t(); |
2937 |
MIPS_DEBUG("bc1t %08x", btarget);
|
2938 |
not_likely:
|
2939 |
ctx->hflags |= MIPS_HFLAG_BC; |
2940 |
break;
|
2941 |
case OPC_BC1TL:
|
2942 |
gen_op_bc1t(); |
2943 |
MIPS_DEBUG("bc1tl %08x", btarget);
|
2944 |
likely:
|
2945 |
ctx->hflags |= MIPS_HFLAG_BL; |
2946 |
break;
|
2947 |
default:
|
2948 |
MIPS_INVAL("cp1 branch/jump");
|
2949 |
generate_exception_err (ctx, EXCP_RI, 1);
|
2950 |
return;
|
2951 |
} |
2952 |
gen_op_set_bcond(); |
2953 |
|
2954 |
MIPS_DEBUG("enter ds: cond %02x target %08x",
|
2955 |
ctx->hflags, btarget); |
2956 |
ctx->btarget = btarget; |
2957 |
|
2958 |
return;
|
2959 |
} |
2960 |
|
2961 |
/* Coprocessor 1 (FPU) */
|
2962 |
static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs) |
2963 |
{ |
2964 |
const char *opn = "unk"; |
2965 |
|
2966 |
switch (opc) {
|
2967 |
case OPC_MFC1:
|
2968 |
GEN_LOAD_FREG_FTN(WT0, fs); |
2969 |
gen_op_mfc1(); |
2970 |
GEN_STORE_TN_REG(rt, T0); |
2971 |
opn = "mfc1";
|
2972 |
break;
|
2973 |
case OPC_MTC1:
|
2974 |
GEN_LOAD_REG_TN(T0, rt); |
2975 |
gen_op_mtc1(); |
2976 |
GEN_STORE_FTN_FREG(fs, WT0); |
2977 |
opn = "mtc1";
|
2978 |
break;
|
2979 |
case OPC_CFC1:
|
2980 |
if (fs != 0 && fs != 31) { |
2981 |
MIPS_INVAL("cfc1 freg");
|
2982 |
generate_exception_err (ctx, EXCP_RI, 1);
|
2983 |
return;
|
2984 |
} |
2985 |
GEN_LOAD_IMM_TN(T1, fs); |
2986 |
gen_op_cfc1(); |
2987 |
GEN_STORE_TN_REG(rt, T0); |
2988 |
opn = "cfc1";
|
2989 |
break;
|
2990 |
case OPC_CTC1:
|
2991 |
if (fs != 0 && fs != 31) { |
2992 |
MIPS_INVAL("ctc1 freg");
|
2993 |
generate_exception_err (ctx, EXCP_RI, 1);
|
2994 |
return;
|
2995 |
} |
2996 |
GEN_LOAD_IMM_TN(T1, fs); |
2997 |
GEN_LOAD_REG_TN(T0, rt); |
2998 |
gen_op_ctc1(); |
2999 |
opn = "ctc1";
|
3000 |
break;
|
3001 |
default:
|
3002 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
3003 |
fprintf(logfile, "Invalid CP1 opcode: %08x %03x %03x %03x\n",
|
3004 |
ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
3005 |
((ctx->opcode >> 16) & 0x1F)); |
3006 |
} |
3007 |
generate_exception_err (ctx, EXCP_RI, 1);
|
3008 |
return;
|
3009 |
} |
3010 |
MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
|
3011 |
} |
3012 |
|
3013 |
/* verify if floating point register is valid; an operation is not defined
|
3014 |
* if bit 0 of any register specification is set and the FR bit in the
|
3015 |
* Status register equals zero, since the register numbers specify an
|
3016 |
* even-odd pair of adjacent coprocessor general registers. When the FR bit
|
3017 |
* in the Status register equals one, both even and odd register numbers
|
3018 |
* are valid.
|
3019 |
*
|
3020 |
* Multiple float registers can be checked by calling
|
3021 |
* CHECK_FR(ctx, freg1 | freg2 | ... | fregN);
|
3022 |
*/
|
3023 |
#define CHECK_FR(ctx, freg) do { \ |
3024 |
if (!((ctx)->CP0_Status & (1<<CP0St_FR)) && ((freg) & 1)) { \ |
3025 |
generate_exception_err (ctx, EXCP_RI, 1); \
|
3026 |
return; \
|
3027 |
} \ |
3028 |
} while(0) |
3029 |
|
3030 |
#define FOP(func, fmt) (((fmt) << 21) | (func)) |
3031 |
|
3032 |
static void gen_farith (DisasContext *ctx, uint32_t op1, int ft, int fs, int fd) |
3033 |
{ |
3034 |
const char *opn = "unk"; |
3035 |
const char *condnames[] = { |
3036 |
"c.f",
|
3037 |
"c.un",
|
3038 |
"c.eq",
|
3039 |
"c.ueq",
|
3040 |
"c.olt",
|
3041 |
"c.ult",
|
3042 |
"c.ole",
|
3043 |
"c.ule",
|
3044 |
"c.sf",
|
3045 |
"c.ngle",
|
3046 |
"c.seq",
|
3047 |
"c.ngl",
|
3048 |
"c.lt",
|
3049 |
"c.nge",
|
3050 |
"c.le",
|
3051 |
"c.ngt",
|
3052 |
}; |
3053 |
int binary = 0; |
3054 |
uint32_t func = ctx->opcode & 0x3f;
|
3055 |
|
3056 |
switch (ctx->opcode & FOP(0x3f, 0x1f)) { |
3057 |
case FOP(0, 17): |
3058 |
CHECK_FR(ctx, fs | ft | fd); |
3059 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3060 |
GEN_LOAD_FREG_FTN(DT1, ft); |
3061 |
gen_op_float_add_d(); |
3062 |
GEN_STORE_FTN_FREG(fd, DT2); |
3063 |
opn = "add.d";
|
3064 |
binary = 1;
|
3065 |
break;
|
3066 |
case FOP(1, 17): |
3067 |
CHECK_FR(ctx, fs | ft | fd); |
3068 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3069 |
GEN_LOAD_FREG_FTN(DT1, ft); |
3070 |
gen_op_float_sub_d(); |
3071 |
GEN_STORE_FTN_FREG(fd, DT2); |
3072 |
opn = "sub.d";
|
3073 |
binary = 1;
|
3074 |
break;
|
3075 |
case FOP(2, 17): |
3076 |
CHECK_FR(ctx, fs | ft | fd); |
3077 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3078 |
GEN_LOAD_FREG_FTN(DT1, ft); |
3079 |
gen_op_float_mul_d(); |
3080 |
GEN_STORE_FTN_FREG(fd, DT2); |
3081 |
opn = "mul.d";
|
3082 |
binary = 1;
|
3083 |
break;
|
3084 |
case FOP(3, 17): |
3085 |
CHECK_FR(ctx, fs | ft | fd); |
3086 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3087 |
GEN_LOAD_FREG_FTN(DT1, ft); |
3088 |
gen_op_float_div_d(); |
3089 |
GEN_STORE_FTN_FREG(fd, DT2); |
3090 |
opn = "div.d";
|
3091 |
binary = 1;
|
3092 |
break;
|
3093 |
case FOP(4, 17): |
3094 |
CHECK_FR(ctx, fs | fd); |
3095 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3096 |
gen_op_float_sqrt_d(); |
3097 |
GEN_STORE_FTN_FREG(fd, DT2); |
3098 |
opn = "sqrt.d";
|
3099 |
break;
|
3100 |
case FOP(5, 17): |
3101 |
CHECK_FR(ctx, fs | fd); |
3102 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3103 |
gen_op_float_abs_d(); |
3104 |
GEN_STORE_FTN_FREG(fd, DT2); |
3105 |
opn = "abs.d";
|
3106 |
break;
|
3107 |
case FOP(6, 17): |
3108 |
CHECK_FR(ctx, fs | fd); |
3109 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3110 |
gen_op_float_mov_d(); |
3111 |
GEN_STORE_FTN_FREG(fd, DT2); |
3112 |
opn = "mov.d";
|
3113 |
break;
|
3114 |
case FOP(7, 17): |
3115 |
CHECK_FR(ctx, fs | fd); |
3116 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3117 |
gen_op_float_chs_d(); |
3118 |
GEN_STORE_FTN_FREG(fd, DT2); |
3119 |
opn = "neg.d";
|
3120 |
break;
|
3121 |
/* 8 - round.l */
|
3122 |
/* 9 - trunc.l */
|
3123 |
/* 10 - ceil.l */
|
3124 |
/* 11 - floor.l */
|
3125 |
case FOP(12, 17): |
3126 |
CHECK_FR(ctx, fs | fd); |
3127 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3128 |
gen_op_float_roundw_d(); |
3129 |
GEN_STORE_FTN_FREG(fd, WT2); |
3130 |
opn = "round.w.d";
|
3131 |
break;
|
3132 |
case FOP(13, 17): |
3133 |
CHECK_FR(ctx, fs | fd); |
3134 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3135 |
gen_op_float_truncw_d(); |
3136 |
GEN_STORE_FTN_FREG(fd, WT2); |
3137 |
opn = "trunc.w.d";
|
3138 |
break;
|
3139 |
case FOP(14, 17): |
3140 |
CHECK_FR(ctx, fs | fd); |
3141 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3142 |
gen_op_float_ceilw_d(); |
3143 |
GEN_STORE_FTN_FREG(fd, WT2); |
3144 |
opn = "ceil.w.d";
|
3145 |
break;
|
3146 |
case FOP(15, 17): |
3147 |
CHECK_FR(ctx, fs | fd); |
3148 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3149 |
gen_op_float_floorw_d(); |
3150 |
GEN_STORE_FTN_FREG(fd, WT2); |
3151 |
opn = "floor.w.d";
|
3152 |
break;
|
3153 |
case FOP(33, 16): /* cvt.d.s */ |
3154 |
CHECK_FR(ctx, fs | fd); |
3155 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3156 |
gen_op_float_cvtd_s(); |
3157 |
GEN_STORE_FTN_FREG(fd, DT2); |
3158 |
opn = "cvt.d.s";
|
3159 |
break;
|
3160 |
case FOP(33, 20): /* cvt.d.w */ |
3161 |
CHECK_FR(ctx, fs | fd); |
3162 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3163 |
gen_op_float_cvtd_w(); |
3164 |
GEN_STORE_FTN_FREG(fd, DT2); |
3165 |
opn = "cvt.d.w";
|
3166 |
break;
|
3167 |
case FOP(48, 17): |
3168 |
case FOP(49, 17): |
3169 |
case FOP(50, 17): |
3170 |
case FOP(51, 17): |
3171 |
case FOP(52, 17): |
3172 |
case FOP(53, 17): |
3173 |
case FOP(54, 17): |
3174 |
case FOP(55, 17): |
3175 |
case FOP(56, 17): |
3176 |
case FOP(57, 17): |
3177 |
case FOP(58, 17): |
3178 |
case FOP(59, 17): |
3179 |
case FOP(60, 17): |
3180 |
case FOP(61, 17): |
3181 |
case FOP(62, 17): |
3182 |
case FOP(63, 17): |
3183 |
CHECK_FR(ctx, fs | ft); |
3184 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3185 |
GEN_LOAD_FREG_FTN(DT1, ft); |
3186 |
gen_cmp_d(func-48);
|
3187 |
opn = condnames[func-48];
|
3188 |
break;
|
3189 |
case FOP(0, 16): |
3190 |
CHECK_FR(ctx, fs | ft | fd); |
3191 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3192 |
GEN_LOAD_FREG_FTN(WT1, ft); |
3193 |
gen_op_float_add_s(); |
3194 |
GEN_STORE_FTN_FREG(fd, WT2); |
3195 |
opn = "add.s";
|
3196 |
binary = 1;
|
3197 |
break;
|
3198 |
case FOP(1, 16): |
3199 |
CHECK_FR(ctx, fs | ft | fd); |
3200 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3201 |
GEN_LOAD_FREG_FTN(WT1, ft); |
3202 |
gen_op_float_sub_s(); |
3203 |
GEN_STORE_FTN_FREG(fd, WT2); |
3204 |
opn = "sub.s";
|
3205 |
binary = 1;
|
3206 |
break;
|
3207 |
case FOP(2, 16): |
3208 |
CHECK_FR(ctx, fs | ft | fd); |
3209 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3210 |
GEN_LOAD_FREG_FTN(WT1, ft); |
3211 |
gen_op_float_mul_s(); |
3212 |
GEN_STORE_FTN_FREG(fd, WT2); |
3213 |
opn = "mul.s";
|
3214 |
binary = 1;
|
3215 |
break;
|
3216 |
case FOP(3, 16): |
3217 |
CHECK_FR(ctx, fs | ft | fd); |
3218 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3219 |
GEN_LOAD_FREG_FTN(WT1, ft); |
3220 |
gen_op_float_div_s(); |
3221 |
GEN_STORE_FTN_FREG(fd, WT2); |
3222 |
opn = "div.s";
|
3223 |
binary = 1;
|
3224 |
break;
|
3225 |
case FOP(4, 16): |
3226 |
CHECK_FR(ctx, fs | fd); |
3227 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3228 |
gen_op_float_sqrt_s(); |
3229 |
GEN_STORE_FTN_FREG(fd, WT2); |
3230 |
opn = "sqrt.s";
|
3231 |
break;
|
3232 |
case FOP(5, 16): |
3233 |
CHECK_FR(ctx, fs | fd); |
3234 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3235 |
gen_op_float_abs_s(); |
3236 |
GEN_STORE_FTN_FREG(fd, WT2); |
3237 |
opn = "abs.s";
|
3238 |
break;
|
3239 |
case FOP(6, 16): |
3240 |
CHECK_FR(ctx, fs | fd); |
3241 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3242 |
gen_op_float_mov_s(); |
3243 |
GEN_STORE_FTN_FREG(fd, WT2); |
3244 |
opn = "mov.s";
|
3245 |
break;
|
3246 |
case FOP(7, 16): |
3247 |
CHECK_FR(ctx, fs | fd); |
3248 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3249 |
gen_op_float_chs_s(); |
3250 |
GEN_STORE_FTN_FREG(fd, WT2); |
3251 |
opn = "neg.s";
|
3252 |
break;
|
3253 |
case FOP(12, 16): |
3254 |
CHECK_FR(ctx, fs | fd); |
3255 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3256 |
gen_op_float_roundw_s(); |
3257 |
GEN_STORE_FTN_FREG(fd, WT2); |
3258 |
opn = "round.w.s";
|
3259 |
break;
|
3260 |
case FOP(13, 16): |
3261 |
CHECK_FR(ctx, fs | fd); |
3262 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3263 |
gen_op_float_truncw_s(); |
3264 |
GEN_STORE_FTN_FREG(fd, WT2); |
3265 |
opn = "trunc.w.s";
|
3266 |
break;
|
3267 |
case FOP(32, 17): /* cvt.s.d */ |
3268 |
CHECK_FR(ctx, fs | fd); |
3269 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3270 |
gen_op_float_cvts_d(); |
3271 |
GEN_STORE_FTN_FREG(fd, WT2); |
3272 |
opn = "cvt.s.d";
|
3273 |
break;
|
3274 |
case FOP(32, 20): /* cvt.s.w */ |
3275 |
CHECK_FR(ctx, fs | fd); |
3276 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3277 |
gen_op_float_cvts_w(); |
3278 |
GEN_STORE_FTN_FREG(fd, WT2); |
3279 |
opn = "cvt.s.w";
|
3280 |
break;
|
3281 |
case FOP(36, 16): /* cvt.w.s */ |
3282 |
CHECK_FR(ctx, fs | fd); |
3283 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3284 |
gen_op_float_cvtw_s(); |
3285 |
GEN_STORE_FTN_FREG(fd, WT2); |
3286 |
opn = "cvt.w.s";
|
3287 |
break;
|
3288 |
case FOP(36, 17): /* cvt.w.d */ |
3289 |
CHECK_FR(ctx, fs | fd); |
3290 |
GEN_LOAD_FREG_FTN(DT0, fs); |
3291 |
gen_op_float_cvtw_d(); |
3292 |
GEN_STORE_FTN_FREG(fd, WT2); |
3293 |
opn = "cvt.w.d";
|
3294 |
break;
|
3295 |
case FOP(48, 16): |
3296 |
case FOP(49, 16): |
3297 |
case FOP(50, 16): |
3298 |
case FOP(51, 16): |
3299 |
case FOP(52, 16): |
3300 |
case FOP(53, 16): |
3301 |
case FOP(54, 16): |
3302 |
case FOP(55, 16): |
3303 |
case FOP(56, 16): |
3304 |
case FOP(57, 16): |
3305 |
case FOP(58, 16): |
3306 |
case FOP(59, 16): |
3307 |
case FOP(60, 16): |
3308 |
case FOP(61, 16): |
3309 |
case FOP(62, 16): |
3310 |
case FOP(63, 16): |
3311 |
CHECK_FR(ctx, fs | ft); |
3312 |
GEN_LOAD_FREG_FTN(WT0, fs); |
3313 |
GEN_LOAD_FREG_FTN(WT1, ft); |
3314 |
gen_cmp_s(func-48);
|
3315 |
opn = condnames[func-48];
|
3316 |
break;
|
3317 |
default:
|
3318 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
3319 |
fprintf(logfile, "Invalid FP arith function: %08x %03x %03x %03x\n",
|
3320 |
ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
3321 |
((ctx->opcode >> 16) & 0x1F)); |
3322 |
} |
3323 |
generate_exception_err (ctx, EXCP_RI, 1);
|
3324 |
return;
|
3325 |
} |
3326 |
if (binary)
|
3327 |
MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
|
3328 |
else
|
3329 |
MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
|
3330 |
} |
3331 |
|
3332 |
static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf) |
3333 |
{ |
3334 |
uint32_t ccbit; |
3335 |
|
3336 |
if (cc)
|
3337 |
ccbit = 1 << (24 + cc); |
3338 |
else
|
3339 |
ccbit = 1 << 23; |
3340 |
if (!tf)
|
3341 |
gen_op_movf(ccbit, rd, rs); |
3342 |
else
|
3343 |
gen_op_movt(ccbit, rd, rs); |
3344 |
} |
3345 |
|
3346 |
#endif /* MIPS_USES_FPU */ |
3347 |
|
3348 |
/* ISA extensions (ASEs) */
|
3349 |
/* MIPS16 extension to MIPS32 */
|
3350 |
/* SmartMIPS extension to MIPS32 */
|
3351 |
|
3352 |
#ifdef MIPS_HAS_MIPS64
|
3353 |
static void gen_arith64 (DisasContext *ctx, uint32_t opc) |
3354 |
{ |
3355 |
if (func == 0x02 && rd == 0) { |
3356 |
/* NOP */
|
3357 |
return;
|
3358 |
} |
3359 |
if (rs == 0 || rt == 0) { |
3360 |
gen_op_reset_T0(); |
3361 |
gen_op_save64(); |
3362 |
} else {
|
3363 |
gen_op_load_gpr_T0(rs); |
3364 |
gen_op_load_gpr_T1(rt); |
3365 |
gen_op_save64(); |
3366 |
if (func & 0x01) |
3367 |
gen_op_mul64u(); |
3368 |
else
|
3369 |
gen_op_mul64s(); |
3370 |
} |
3371 |
if (func & 0x02) |
3372 |
gen_op_add64(); |
3373 |
else
|
3374 |
gen_op_sub64(); |
3375 |
} |
3376 |
|
3377 |
/* Coprocessor 3 (FPU) */
|
3378 |
|
3379 |
/* MDMX extension to MIPS64 */
|
3380 |
/* MIPS-3D extension to MIPS64 */
|
3381 |
|
3382 |
#endif
|
3383 |
|
3384 |
static void gen_blikely(DisasContext *ctx) |
3385 |
{ |
3386 |
int l1;
|
3387 |
l1 = gen_new_label(); |
3388 |
gen_op_jnz_T2(l1); |
3389 |
gen_op_save_state(ctx->hflags & ~MIPS_HFLAG_BMASK); |
3390 |
gen_goto_tb(ctx, 1, ctx->pc + 4); |
3391 |
gen_set_label(l1); |
3392 |
} |
3393 |
|
3394 |
static void decode_opc (DisasContext *ctx) |
3395 |
{ |
3396 |
int32_t offset; |
3397 |
int rs, rt, rd, sa;
|
3398 |
uint32_t op, op1, op2; |
3399 |
int16_t imm; |
3400 |
|
3401 |
/* make sure instructions are on a word boundary */
|
3402 |
if (ctx->pc & 0x3) { |
3403 |
generate_exception(ctx, EXCP_AdEL); |
3404 |
return;
|
3405 |
} |
3406 |
|
3407 |
if ((ctx->hflags & MIPS_HFLAG_BMASK) == MIPS_HFLAG_BL) {
|
3408 |
/* Handle blikely not taken case */
|
3409 |
MIPS_DEBUG("blikely condition (%08x)", ctx->pc + 4); |
3410 |
gen_blikely(ctx); |
3411 |
} |
3412 |
op = MASK_OP_MAJOR(ctx->opcode); |
3413 |
rs = (ctx->opcode >> 21) & 0x1f; |
3414 |
rt = (ctx->opcode >> 16) & 0x1f; |
3415 |
rd = (ctx->opcode >> 11) & 0x1f; |
3416 |
sa = (ctx->opcode >> 6) & 0x1f; |
3417 |
imm = (int16_t)ctx->opcode; |
3418 |
switch (op) {
|
3419 |
case OPC_SPECIAL:
|
3420 |
op1 = MASK_SPECIAL(ctx->opcode); |
3421 |
switch (op1) {
|
3422 |
case OPC_SLL: /* Arithmetic with immediate */ |
3423 |
case OPC_SRL ... OPC_SRA:
|
3424 |
gen_arith_imm(ctx, op1, rd, rt, sa); |
3425 |
break;
|
3426 |
case OPC_SLLV: /* Arithmetic */ |
3427 |
case OPC_SRLV ... OPC_SRAV:
|
3428 |
case OPC_MOVZ ... OPC_MOVN:
|
3429 |
case OPC_ADD ... OPC_NOR:
|
3430 |
case OPC_SLT ... OPC_SLTU:
|
3431 |
gen_arith(ctx, op1, rd, rs, rt); |
3432 |
break;
|
3433 |
case OPC_MULT ... OPC_DIVU:
|
3434 |
gen_muldiv(ctx, op1, rs, rt); |
3435 |
break;
|
3436 |
case OPC_JR ... OPC_JALR:
|
3437 |
gen_compute_branch(ctx, op1, rs, rd, sa); |
3438 |
return;
|
3439 |
case OPC_TGE ... OPC_TEQ: /* Traps */ |
3440 |
case OPC_TNE:
|
3441 |
gen_trap(ctx, op1, rs, rt, -1);
|
3442 |
break;
|
3443 |
case OPC_MFHI: /* Move from HI/LO */ |
3444 |
case OPC_MFLO:
|
3445 |
gen_HILO(ctx, op1, rd); |
3446 |
break;
|
3447 |
case OPC_MTHI:
|
3448 |
case OPC_MTLO: /* Move to HI/LO */ |
3449 |
gen_HILO(ctx, op1, rs); |
3450 |
break;
|
3451 |
case OPC_PMON: /* Pmon entry point */ |
3452 |
gen_op_pmon(sa); |
3453 |
break;
|
3454 |
case OPC_SYSCALL:
|
3455 |
generate_exception(ctx, EXCP_SYSCALL); |
3456 |
ctx->bstate = BS_EXCP; |
3457 |
break;
|
3458 |
case OPC_BREAK:
|
3459 |
generate_exception(ctx, EXCP_BREAK); |
3460 |
break;
|
3461 |
case OPC_SPIM: /* SPIM ? */ |
3462 |
/* Implemented as RI exception for now. */
|
3463 |
MIPS_INVAL("spim (unofficial)");
|
3464 |
generate_exception(ctx, EXCP_RI); |
3465 |
break;
|
3466 |
case OPC_SYNC:
|
3467 |
/* Treat as a noop. */
|
3468 |
break;
|
3469 |
|
3470 |
#ifdef MIPS_USES_FPU
|
3471 |
case OPC_MOVCI:
|
3472 |
gen_op_cp1_enabled(); |
3473 |
gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7, |
3474 |
(ctx->opcode >> 16) & 1); |
3475 |
break;
|
3476 |
#endif
|
3477 |
|
3478 |
#ifdef MIPS_HAS_MIPS64
|
3479 |
/* MIPS64 specific opcodes */
|
3480 |
case OPC_DSLL:
|
3481 |
case OPC_DSRL ... OPC_DSRA:
|
3482 |
case OPC_DSLL32:
|
3483 |
case OPC_DSRL32 ... OPC_DSRA32:
|
3484 |
gen_arith_imm(ctx, op1, rd, rt, sa); |
3485 |
break;
|
3486 |
case OPC_DSLLV:
|
3487 |
case OPC_DSRLV ... OPC_DSRAV:
|
3488 |
case OPC_DADD ... OPC_DSUBU:
|
3489 |
gen_arith(ctx, op1, rd, rs, rt); |
3490 |
break;
|
3491 |
case OPC_DMULT ... OPC_DDIVU:
|
3492 |
gen_muldiv(ctx, op1, rs, rt); |
3493 |
break;
|
3494 |
#endif
|
3495 |
default: /* Invalid */ |
3496 |
MIPS_INVAL("special");
|
3497 |
generate_exception(ctx, EXCP_RI); |
3498 |
break;
|
3499 |
} |
3500 |
break;
|
3501 |
case OPC_SPECIAL2:
|
3502 |
op1 = MASK_SPECIAL2(ctx->opcode); |
3503 |
switch (op1) {
|
3504 |
case OPC_MADD ... OPC_MADDU: /* Multiply and add/sub */ |
3505 |
case OPC_MSUB ... OPC_MSUBU:
|
3506 |
gen_muldiv(ctx, op1, rs, rt); |
3507 |
break;
|
3508 |
case OPC_MUL:
|
3509 |
gen_arith(ctx, op1, rd, rs, rt); |
3510 |
break;
|
3511 |
case OPC_CLZ ... OPC_CLO:
|
3512 |
gen_cl(ctx, op1, rd, rs); |
3513 |
break;
|
3514 |
case OPC_SDBBP:
|
3515 |
/* XXX: not clear which exception should be raised
|
3516 |
* when in debug mode...
|
3517 |
*/
|
3518 |
if (!(ctx->hflags & MIPS_HFLAG_DM)) {
|
3519 |
generate_exception(ctx, EXCP_DBp); |
3520 |
} else {
|
3521 |
generate_exception(ctx, EXCP_DBp); |
3522 |
} |
3523 |
/* Treat as a noop */
|
3524 |
break;
|
3525 |
#ifdef MIPS_HAS_MIPS64
|
3526 |
case OPC_DCLZ ... OPC_DCLO:
|
3527 |
gen_cl(ctx, op1, rd, rs); |
3528 |
break;
|
3529 |
#endif
|
3530 |
default: /* Invalid */ |
3531 |
MIPS_INVAL("special2");
|
3532 |
generate_exception(ctx, EXCP_RI); |
3533 |
break;
|
3534 |
} |
3535 |
break;
|
3536 |
case OPC_SPECIAL3:
|
3537 |
op1 = MASK_SPECIAL3(ctx->opcode); |
3538 |
switch (op1) {
|
3539 |
case OPC_EXT:
|
3540 |
case OPC_INS:
|
3541 |
gen_bitops(ctx, op1, rt, rs, sa, rd); |
3542 |
break;
|
3543 |
case OPC_BSHFL:
|
3544 |
op2 = MASK_BSHFL(ctx->opcode); |
3545 |
switch (op2) {
|
3546 |
case OPC_WSBH:
|
3547 |
GEN_LOAD_REG_TN(T1, rt); |
3548 |
gen_op_wsbh(); |
3549 |
break;
|
3550 |
case OPC_SEB:
|
3551 |
GEN_LOAD_REG_TN(T1, rt); |
3552 |
gen_op_seb(); |
3553 |
break;
|
3554 |
case OPC_SEH:
|
3555 |
GEN_LOAD_REG_TN(T1, rt); |
3556 |
gen_op_seh(); |
3557 |
break;
|
3558 |
default: /* Invalid */ |
3559 |
MIPS_INVAL("bshfl");
|
3560 |
generate_exception(ctx, EXCP_RI); |
3561 |
break;
|
3562 |
} |
3563 |
GEN_STORE_TN_REG(rd, T0); |
3564 |
break;
|
3565 |
case OPC_RDHWR:
|
3566 |
switch (rd) {
|
3567 |
case 0: |
3568 |
gen_op_rdhwr_cpunum(); |
3569 |
break;
|
3570 |
case 1: |
3571 |
gen_op_rdhwr_synci_step(); |
3572 |
break;
|
3573 |
case 2: |
3574 |
gen_op_rdhwr_cc(); |
3575 |
break;
|
3576 |
case 3: |
3577 |
gen_op_rdhwr_ccres(); |
3578 |
break;
|
3579 |
default: /* Invalid */ |
3580 |
MIPS_INVAL("rdhwr");
|
3581 |
generate_exception(ctx, EXCP_RI); |
3582 |
break;
|
3583 |
} |
3584 |
GEN_STORE_TN_REG(rt, T0); |
3585 |
break;
|
3586 |
#ifdef MIPS_HAS_MIPS64
|
3587 |
case OPC_DEXTM ... OPC_DEXT:
|
3588 |
case OPC_DINSM ... OPC_DINS:
|
3589 |
gen_bitops(ctx, op1, rt, rs, sa, rd); |
3590 |
break;
|
3591 |
case OPC_DBSHFL:
|
3592 |
op2 = MASK_DBSHFL(ctx->opcode); |
3593 |
switch (op2) {
|
3594 |
case OPC_DSBH:
|
3595 |
GEN_LOAD_REG_TN(T1, rt); |
3596 |
gen_op_dsbh(); |
3597 |
break;
|
3598 |
case OPC_DSHD:
|
3599 |
GEN_LOAD_REG_TN(T1, rt); |
3600 |
gen_op_dshd(); |
3601 |
break;
|
3602 |
default: /* Invalid */ |
3603 |
MIPS_INVAL("dbshfl");
|
3604 |
generate_exception(ctx, EXCP_RI); |
3605 |
break;
|
3606 |
} |
3607 |
GEN_STORE_TN_REG(rd, T0); |
3608 |
#endif
|
3609 |
default: /* Invalid */ |
3610 |
MIPS_INVAL("special3");
|
3611 |
generate_exception(ctx, EXCP_RI); |
3612 |
break;
|
3613 |
} |
3614 |
break;
|
3615 |
case OPC_REGIMM:
|
3616 |
op1 = MASK_REGIMM(ctx->opcode); |
3617 |
switch (op1) {
|
3618 |
case OPC_BLTZ ... OPC_BGEZL: /* REGIMM branches */ |
3619 |
case OPC_BLTZAL ... OPC_BGEZALL:
|
3620 |
gen_compute_branch(ctx, op1, rs, -1, imm << 2); |
3621 |
return;
|
3622 |
case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */ |
3623 |
case OPC_TNEI:
|
3624 |
gen_trap(ctx, op1, rs, -1, imm);
|
3625 |
break;
|
3626 |
case OPC_SYNCI:
|
3627 |
/* treat as noop */
|
3628 |
break;
|
3629 |
default: /* Invalid */ |
3630 |
MIPS_INVAL("REGIMM");
|
3631 |
generate_exception(ctx, EXCP_RI); |
3632 |
break;
|
3633 |
} |
3634 |
break;
|
3635 |
case OPC_CP0:
|
3636 |
op1 = MASK_CP0(ctx->opcode); |
3637 |
switch (op1) {
|
3638 |
case OPC_MFC0:
|
3639 |
case OPC_MTC0:
|
3640 |
#ifdef MIPS_HAS_MIPS64
|
3641 |
case OPC_DMFC0:
|
3642 |
case OPC_DMTC0:
|
3643 |
#endif
|
3644 |
gen_cp0(ctx, op1, rt, rd); |
3645 |
break;
|
3646 |
case OPC_C0_FIRST ... OPC_C0_LAST:
|
3647 |
gen_cp0(ctx, MASK_C0(ctx->opcode), rt, rd); |
3648 |
break;
|
3649 |
case OPC_MFMC0:
|
3650 |
op2 = MASK_MFMC0(ctx->opcode); |
3651 |
switch (op2) {
|
3652 |
case OPC_DI:
|
3653 |
gen_op_di(); |
3654 |
/* Stop translation as we may have switched the execution mode */
|
3655 |
ctx->bstate = BS_STOP; |
3656 |
break;
|
3657 |
case OPC_EI:
|
3658 |
gen_op_ei(); |
3659 |
/* Stop translation as we may have switched the execution mode */
|
3660 |
ctx->bstate = BS_STOP; |
3661 |
break;
|
3662 |
default: /* Invalid */ |
3663 |
MIPS_INVAL("MFMC0");
|
3664 |
generate_exception(ctx, EXCP_RI); |
3665 |
break;
|
3666 |
} |
3667 |
GEN_STORE_TN_REG(rt, T0); |
3668 |
break;
|
3669 |
/* Shadow registers (not implemented). */
|
3670 |
case OPC_RDPGPR:
|
3671 |
case OPC_WRPGPR:
|
3672 |
default:
|
3673 |
generate_exception(ctx, EXCP_RI); |
3674 |
break;
|
3675 |
} |
3676 |
break;
|
3677 |
case OPC_ADDI ... OPC_LUI: /* Arithmetic with immediate opcode */ |
3678 |
gen_arith_imm(ctx, op, rt, rs, imm); |
3679 |
break;
|
3680 |
case OPC_J ... OPC_JAL: /* Jump */ |
3681 |
offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2; |
3682 |
gen_compute_branch(ctx, op, rs, rt, offset); |
3683 |
return;
|
3684 |
case OPC_BEQ ... OPC_BGTZ: /* Branch */ |
3685 |
case OPC_BEQL ... OPC_BGTZL:
|
3686 |
gen_compute_branch(ctx, op, rs, rt, imm << 2);
|
3687 |
return;
|
3688 |
case OPC_LB ... OPC_LWR: /* Load and stores */ |
3689 |
case OPC_SB ... OPC_SW:
|
3690 |
case OPC_SWR:
|
3691 |
case OPC_LL:
|
3692 |
case OPC_SC:
|
3693 |
gen_ldst(ctx, op, rt, rs, imm); |
3694 |
break;
|
3695 |
case OPC_CACHE:
|
3696 |
/* Treat as a noop */
|
3697 |
break;
|
3698 |
case OPC_PREF:
|
3699 |
/* Treat as a noop */
|
3700 |
break;
|
3701 |
|
3702 |
/* Floating point. */
|
3703 |
case OPC_LWC1:
|
3704 |
case OPC_LDC1:
|
3705 |
case OPC_SWC1:
|
3706 |
case OPC_SDC1:
|
3707 |
#if defined(MIPS_USES_FPU)
|
3708 |
save_cpu_state(ctx, 1);
|
3709 |
gen_op_cp1_enabled(); |
3710 |
gen_flt_ldst(ctx, op, rt, rs, imm); |
3711 |
#else
|
3712 |
generate_exception_err(ctx, EXCP_CpU, 1);
|
3713 |
#endif
|
3714 |
break;
|
3715 |
|
3716 |
case OPC_CP1:
|
3717 |
#if defined(MIPS_USES_FPU)
|
3718 |
save_cpu_state(ctx, 1);
|
3719 |
gen_op_cp1_enabled(); |
3720 |
op1 = MASK_CP1(ctx->opcode); |
3721 |
switch (op1) {
|
3722 |
case OPC_MFC1:
|
3723 |
case OPC_CFC1:
|
3724 |
case OPC_MTC1:
|
3725 |
case OPC_CTC1:
|
3726 |
gen_cp1(ctx, op1, rt, rd); |
3727 |
break;
|
3728 |
case OPC_BC1:
|
3729 |
gen_compute_branch1(ctx, MASK_CP1_BCOND(ctx->opcode), imm << 2);
|
3730 |
return;
|
3731 |
case OPC_S_FMT:
|
3732 |
case OPC_D_FMT:
|
3733 |
case OPC_W_FMT:
|
3734 |
case OPC_L_FMT:
|
3735 |
gen_farith(ctx, MASK_CP1_FUNC(ctx->opcode), rt, rd, sa); |
3736 |
break;
|
3737 |
default:
|
3738 |
generate_exception_err(ctx, EXCP_RI, 1);
|
3739 |
break;
|
3740 |
} |
3741 |
#else
|
3742 |
generate_exception_err(ctx, EXCP_CpU, 1);
|
3743 |
#endif
|
3744 |
break;
|
3745 |
|
3746 |
/* COP2. */
|
3747 |
case OPC_LWC2:
|
3748 |
case OPC_LDC2:
|
3749 |
case OPC_SWC2:
|
3750 |
case OPC_SDC2:
|
3751 |
case OPC_CP2:
|
3752 |
/* COP2: Not implemented. */
|
3753 |
generate_exception_err(ctx, EXCP_CpU, 2);
|
3754 |
break;
|
3755 |
|
3756 |
#ifdef MIPS_USES_FPU
|
3757 |
case OPC_CP3:
|
3758 |
gen_op_cp1_enabled(); |
3759 |
op1 = MASK_CP3(ctx->opcode); |
3760 |
switch (op1) {
|
3761 |
/* Not implemented */
|
3762 |
default:
|
3763 |
generate_exception_err(ctx, EXCP_RI, 1);
|
3764 |
break;
|
3765 |
} |
3766 |
break;
|
3767 |
#endif
|
3768 |
|
3769 |
#ifdef MIPS_HAS_MIPS64
|
3770 |
/* MIPS64 opcodes */
|
3771 |
case OPC_LWU:
|
3772 |
case OPC_LDL ... OPC_LDR:
|
3773 |
case OPC_SDL ... OPC_SDR:
|
3774 |
case OPC_LLD:
|
3775 |
case OPC_LD:
|
3776 |
case OPC_SCD:
|
3777 |
case OPC_SD:
|
3778 |
gen_ldst(ctx, op, rt, rs, imm); |
3779 |
break;
|
3780 |
case OPC_DADDI ... OPC_DADDIU:
|
3781 |
gen_arith_imm(ctx, op, rt, rs, imm); |
3782 |
break;
|
3783 |
#endif
|
3784 |
#ifdef MIPS_HAS_MIPS16
|
3785 |
case OPC_JALX:
|
3786 |
/* MIPS16: Not implemented. */
|
3787 |
#endif
|
3788 |
#ifdef MIPS_HAS_MDMX
|
3789 |
case OPC_MDMX:
|
3790 |
/* MDMX: Not implemented. */
|
3791 |
#endif
|
3792 |
default: /* Invalid */ |
3793 |
MIPS_INVAL("");
|
3794 |
generate_exception(ctx, EXCP_RI); |
3795 |
break;
|
3796 |
} |
3797 |
if (ctx->hflags & MIPS_HFLAG_BMASK) {
|
3798 |
int hflags = ctx->hflags;
|
3799 |
/* Branches completion */
|
3800 |
ctx->hflags &= ~MIPS_HFLAG_BMASK; |
3801 |
ctx->bstate = BS_BRANCH; |
3802 |
save_cpu_state(ctx, 0);
|
3803 |
switch (hflags & MIPS_HFLAG_BMASK) {
|
3804 |
case MIPS_HFLAG_B:
|
3805 |
/* unconditional branch */
|
3806 |
MIPS_DEBUG("unconditional branch");
|
3807 |
gen_goto_tb(ctx, 0, ctx->btarget);
|
3808 |
break;
|
3809 |
case MIPS_HFLAG_BL:
|
3810 |
/* blikely taken case */
|
3811 |
MIPS_DEBUG("blikely branch taken");
|
3812 |
gen_goto_tb(ctx, 0, ctx->btarget);
|
3813 |
break;
|
3814 |
case MIPS_HFLAG_BC:
|
3815 |
/* Conditional branch */
|
3816 |
MIPS_DEBUG("conditional branch");
|
3817 |
{ |
3818 |
int l1;
|
3819 |
l1 = gen_new_label(); |
3820 |
gen_op_jnz_T2(l1); |
3821 |
gen_goto_tb(ctx, 1, ctx->pc + 4); |
3822 |
gen_set_label(l1); |
3823 |
gen_goto_tb(ctx, 0, ctx->btarget);
|
3824 |
} |
3825 |
break;
|
3826 |
case MIPS_HFLAG_BR:
|
3827 |
/* unconditional branch to register */
|
3828 |
MIPS_DEBUG("branch to register");
|
3829 |
gen_op_breg(); |
3830 |
break;
|
3831 |
default:
|
3832 |
MIPS_DEBUG("unknown branch");
|
3833 |
break;
|
3834 |
} |
3835 |
} |
3836 |
} |
3837 |
|
3838 |
int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
|
3839 |
int search_pc)
|
3840 |
{ |
3841 |
DisasContext ctx, *ctxp = &ctx; |
3842 |
target_ulong pc_start; |
3843 |
uint16_t *gen_opc_end; |
3844 |
int j, lj = -1; |
3845 |
|
3846 |
if (search_pc && loglevel)
|
3847 |
fprintf (logfile, "search pc %d\n", search_pc);
|
3848 |
|
3849 |
pc_start = tb->pc; |
3850 |
gen_opc_ptr = gen_opc_buf; |
3851 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
3852 |
gen_opparam_ptr = gen_opparam_buf; |
3853 |
nb_gen_labels = 0;
|
3854 |
ctx.pc = pc_start; |
3855 |
ctx.saved_pc = -1;
|
3856 |
ctx.tb = tb; |
3857 |
ctx.bstate = BS_NONE; |
3858 |
/* Restore delay slot state from the tb context. */
|
3859 |
ctx.hflags = tb->flags; |
3860 |
ctx.saved_hflags = ctx.hflags; |
3861 |
if (ctx.hflags & MIPS_HFLAG_BR) {
|
3862 |
gen_op_restore_breg_target(); |
3863 |
} else if (ctx.hflags & MIPS_HFLAG_B) { |
3864 |
ctx.btarget = env->btarget; |
3865 |
} else if (ctx.hflags & MIPS_HFLAG_BMASK) { |
3866 |
/* If we are in the delay slot of a conditional branch,
|
3867 |
* restore the branch condition from env->bcond to T2
|
3868 |
*/
|
3869 |
ctx.btarget = env->btarget; |
3870 |
gen_op_restore_bcond(); |
3871 |
} |
3872 |
#if defined(CONFIG_USER_ONLY)
|
3873 |
ctx.mem_idx = 0;
|
3874 |
#else
|
3875 |
ctx.mem_idx = !((ctx.hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM); |
3876 |
#endif
|
3877 |
ctx.CP0_Status = env->CP0_Status; |
3878 |
#ifdef DEBUG_DISAS
|
3879 |
if (loglevel & CPU_LOG_TB_CPU) {
|
3880 |
fprintf(logfile, "------------------------------------------------\n");
|
3881 |
/* FIXME: This may print out stale hflags from env... */
|
3882 |
cpu_dump_state(env, logfile, fprintf, 0);
|
3883 |
} |
3884 |
#endif
|
3885 |
#if defined MIPS_DEBUG_DISAS
|
3886 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
3887 |
fprintf(logfile, "\ntb %p super %d cond %04x\n",
|
3888 |
tb, ctx.mem_idx, ctx.hflags); |
3889 |
#endif
|
3890 |
while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
|
3891 |
if (env->nb_breakpoints > 0) { |
3892 |
for(j = 0; j < env->nb_breakpoints; j++) { |
3893 |
if (env->breakpoints[j] == ctx.pc) {
|
3894 |
save_cpu_state(ctxp, 1);
|
3895 |
ctx.bstate = BS_BRANCH; |
3896 |
gen_op_debug(); |
3897 |
goto done_generating;
|
3898 |
} |
3899 |
} |
3900 |
} |
3901 |
|
3902 |
if (search_pc) {
|
3903 |
j = gen_opc_ptr - gen_opc_buf; |
3904 |
if (lj < j) {
|
3905 |
lj++; |
3906 |
while (lj < j)
|
3907 |
gen_opc_instr_start[lj++] = 0;
|
3908 |
} |
3909 |
gen_opc_pc[lj] = ctx.pc; |
3910 |
gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK; |
3911 |
gen_opc_instr_start[lj] = 1;
|
3912 |
} |
3913 |
ctx.opcode = ldl_code(ctx.pc); |
3914 |
decode_opc(&ctx); |
3915 |
ctx.pc += 4;
|
3916 |
|
3917 |
if (env->singlestep_enabled)
|
3918 |
break;
|
3919 |
|
3920 |
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) |
3921 |
break;
|
3922 |
|
3923 |
#if defined (MIPS_SINGLE_STEP)
|
3924 |
break;
|
3925 |
#endif
|
3926 |
} |
3927 |
if (env->singlestep_enabled) {
|
3928 |
save_cpu_state(ctxp, ctx.bstate == BS_NONE); |
3929 |
gen_op_debug(); |
3930 |
goto done_generating;
|
3931 |
} |
3932 |
else if (ctx.bstate != BS_BRANCH && ctx.bstate != BS_EXCP) { |
3933 |
save_cpu_state(ctxp, 0);
|
3934 |
gen_goto_tb(&ctx, 0, ctx.pc);
|
3935 |
} |
3936 |
gen_op_reset_T0(); |
3937 |
/* Generate the return instruction */
|
3938 |
gen_op_exit_tb(); |
3939 |
done_generating:
|
3940 |
*gen_opc_ptr = INDEX_op_end; |
3941 |
if (search_pc) {
|
3942 |
j = gen_opc_ptr - gen_opc_buf; |
3943 |
lj++; |
3944 |
while (lj <= j)
|
3945 |
gen_opc_instr_start[lj++] = 0;
|
3946 |
tb->size = 0;
|
3947 |
} else {
|
3948 |
tb->size = ctx.pc - pc_start; |
3949 |
} |
3950 |
#ifdef DEBUG_DISAS
|
3951 |
#if defined MIPS_DEBUG_DISAS
|
3952 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
3953 |
fprintf(logfile, "\n");
|
3954 |
#endif
|
3955 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
3956 |
fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
|
3957 |
target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
|
3958 |
fprintf(logfile, "\n");
|
3959 |
} |
3960 |
if (loglevel & CPU_LOG_TB_OP) {
|
3961 |
fprintf(logfile, "OP:\n");
|
3962 |
dump_ops(gen_opc_buf, gen_opparam_buf); |
3963 |
fprintf(logfile, "\n");
|
3964 |
} |
3965 |
if (loglevel & CPU_LOG_TB_CPU) {
|
3966 |
fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags);
|
3967 |
} |
3968 |
#endif
|
3969 |
|
3970 |
return 0; |
3971 |
} |
3972 |
|
3973 |
int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) |
3974 |
{ |
3975 |
return gen_intermediate_code_internal(env, tb, 0); |
3976 |
} |
3977 |
|
3978 |
int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) |
3979 |
{ |
3980 |
return gen_intermediate_code_internal(env, tb, 1); |
3981 |
} |
3982 |
|
3983 |
#ifdef MIPS_USES_FPU
|
3984 |
|
3985 |
void fpu_dump_state(CPUState *env, FILE *f,
|
3986 |
int (*fpu_fprintf)(FILE *f, const char *fmt, ...), |
3987 |
int flags)
|
3988 |
{ |
3989 |
int i;
|
3990 |
|
3991 |
# define printfpr(fp) do { \ |
3992 |
fpu_fprintf(f, "w:%08x d:%08lx%08lx fd:%g fs:%g\n", \
|
3993 |
(fp)->w[FP_ENDIAN_IDX], (fp)->w[0], (fp)->w[1], (fp)->fd, (fp)->fs[FP_ENDIAN_IDX]); \ |
3994 |
} while(0) |
3995 |
|
3996 |
fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d\n",
|
3997 |
env->fcr0, env->fcr31, |
3998 |
(env->CP0_Status & (1 << CP0St_FR)) != 0); |
3999 |
fpu_fprintf(f, "FT0: "); printfpr(&env->ft0);
|
4000 |
fpu_fprintf(f, "FT1: "); printfpr(&env->ft1);
|
4001 |
fpu_fprintf(f, "FT2: "); printfpr(&env->ft2);
|
4002 |
for(i = 0; i < 32; i += 2) { |
4003 |
fpu_fprintf(f, "%s: ", fregnames[i]);
|
4004 |
printfpr(FPR(env, i)); |
4005 |
} |
4006 |
|
4007 |
#undef printfpr
|
4008 |
} |
4009 |
|
4010 |
void dump_fpu (CPUState *env)
|
4011 |
{ |
4012 |
if (loglevel) {
|
4013 |
fprintf(logfile, "pc=0x%08x HI=0x%08x LO=0x%08x ds %04x %08x %d\n",
|
4014 |
env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); |
4015 |
fpu_dump_state(env, logfile, fprintf, 0);
|
4016 |
} |
4017 |
} |
4018 |
|
4019 |
#endif /* MIPS_USES_FPU */ |
4020 |
|
4021 |
void cpu_dump_state (CPUState *env, FILE *f,
|
4022 |
int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
4023 |
int flags)
|
4024 |
{ |
4025 |
uint32_t c0_status; |
4026 |
int i;
|
4027 |
|
4028 |
cpu_fprintf(f, "pc=0x%08x HI=0x%08x LO=0x%08x ds %04x %08x %d\n",
|
4029 |
env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); |
4030 |
for (i = 0; i < 32; i++) { |
4031 |
if ((i & 3) == 0) |
4032 |
cpu_fprintf(f, "GPR%02d:", i);
|
4033 |
cpu_fprintf(f, " %s %08x", regnames[i], env->gpr[i]);
|
4034 |
if ((i & 3) == 3) |
4035 |
cpu_fprintf(f, "\n");
|
4036 |
} |
4037 |
|
4038 |
c0_status = env->CP0_Status; |
4039 |
if (env->hflags & MIPS_HFLAG_UM)
|
4040 |
c0_status |= (1 << CP0St_UM);
|
4041 |
if (env->hflags & MIPS_HFLAG_ERL)
|
4042 |
c0_status |= (1 << CP0St_ERL);
|
4043 |
if (env->hflags & MIPS_HFLAG_EXL)
|
4044 |
c0_status |= (1 << CP0St_EXL);
|
4045 |
|
4046 |
cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x%08x\n",
|
4047 |
c0_status, env->CP0_Cause, env->CP0_EPC); |
4048 |
cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x%08x\n",
|
4049 |
env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr); |
4050 |
#ifdef MIPS_USES_FPU
|
4051 |
if (c0_status & (1 << CP0St_CU1)) |
4052 |
fpu_dump_state(env, f, cpu_fprintf, flags); |
4053 |
#endif
|
4054 |
} |
4055 |
|
4056 |
CPUMIPSState *cpu_mips_init (void)
|
4057 |
{ |
4058 |
CPUMIPSState *env; |
4059 |
|
4060 |
env = qemu_mallocz(sizeof(CPUMIPSState));
|
4061 |
if (!env)
|
4062 |
return NULL; |
4063 |
cpu_exec_init(env); |
4064 |
cpu_reset(env); |
4065 |
return env;
|
4066 |
} |
4067 |
|
4068 |
void cpu_reset (CPUMIPSState *env)
|
4069 |
{ |
4070 |
memset(env, 0, offsetof(CPUMIPSState, breakpoints));
|
4071 |
|
4072 |
tlb_flush(env, 1);
|
4073 |
|
4074 |
/* Minimal init */
|
4075 |
#if !defined(CONFIG_USER_ONLY)
|
4076 |
if (env->hflags & MIPS_HFLAG_BMASK) {
|
4077 |
/* If the exception was raised from a delay slot,
|
4078 |
* come back to the jump. */
|
4079 |
env->CP0_ErrorEPC = env->PC - 4;
|
4080 |
env->hflags &= ~MIPS_HFLAG_BMASK; |
4081 |
} else {
|
4082 |
env->CP0_ErrorEPC = env->PC; |
4083 |
} |
4084 |
env->PC = 0xBFC00000;
|
4085 |
#if defined (MIPS_USES_R4K_TLB)
|
4086 |
env->CP0_random = MIPS_TLB_NB - 1;
|
4087 |
env->tlb_in_use = MIPS_TLB_NB; |
4088 |
#endif
|
4089 |
env->CP0_Wired = 0;
|
4090 |
/* SMP not implemented */
|
4091 |
env->CP0_EBase = 0x80000000;
|
4092 |
env->CP0_Config0 = MIPS_CONFIG0; |
4093 |
env->CP0_Config1 = MIPS_CONFIG1; |
4094 |
env->CP0_Config2 = MIPS_CONFIG2; |
4095 |
env->CP0_Config3 = MIPS_CONFIG3; |
4096 |
env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL); |
4097 |
env->CP0_WatchLo = 0;
|
4098 |
env->hflags = MIPS_HFLAG_ERL; |
4099 |
/* Count register increments in debug mode, EJTAG version 1 */
|
4100 |
env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER); |
4101 |
env->CP0_PRid = MIPS_CPU; |
4102 |
#endif
|
4103 |
env->exception_index = EXCP_NONE; |
4104 |
#if defined(CONFIG_USER_ONLY)
|
4105 |
env->hflags |= MIPS_HFLAG_UM; |
4106 |
env->user_mode_only = 1;
|
4107 |
#endif
|
4108 |
#ifdef MIPS_USES_FPU
|
4109 |
env->fcr0 = MIPS_FCR0; |
4110 |
#endif
|
4111 |
/* XXX some guesswork here, values are CPU specific */
|
4112 |
env->SYNCI_Step = 16;
|
4113 |
env->CCRes = 2;
|
4114 |
} |