Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 1254 insertions, 0 deletions

diff --git a/target/lm32/translate.c b/target/lm32/translate.c
new file mode 100644
index 0000000000..692882f447
--- /dev/null
+++ b/target/lm32/translate.c
@@ -0,0 +1,1254 @@
+/*
+ *  LatticeMico32 main translation routines.
+ *
+ *  Copyright (c) 2010 Michael Walle <michael@walle.cc>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "disas/disas.h"
+#include "exec/helper-proto.h"
+#include "exec/exec-all.h"
+#include "tcg-op.h"
+
+#include "exec/cpu_ldst.h"
+#include "hw/lm32/lm32_pic.h"
+
+#include "exec/helper-gen.h"
+
+#include "trace-tcg.h"
+#include "exec/log.h"
+
+
+#define DISAS_LM32 0
+
+#define LOG_DIS(...) \
+    do { \
+        if (DISAS_LM32) { \
+            qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__); \
+        } \
+    } while (0)
+
+#define EXTRACT_FIELD(src, start, end) \
+            (((src) >> start) & ((1 << (end - start + 1)) - 1))
+
+#define MEM_INDEX 0
+
+static TCGv_env cpu_env;
+static TCGv cpu_R[32];
+static TCGv cpu_pc;
+static TCGv cpu_ie;
+static TCGv cpu_icc;
+static TCGv cpu_dcc;
+static TCGv cpu_cc;
+static TCGv cpu_cfg;
+static TCGv cpu_eba;
+static TCGv cpu_dc;
+static TCGv cpu_deba;
+static TCGv cpu_bp[4];
+static TCGv cpu_wp[4];
+
+#include "exec/gen-icount.h"
+
+enum {
+    OP_FMT_RI,
+    OP_FMT_RR,
+    OP_FMT_CR,
+    OP_FMT_I
+};
+
+/* This is the state at translation time.  */
+typedef struct DisasContext {
+    target_ulong pc;
+
+    /* Decoder.  */
+    int format;
+    uint32_t ir;
+    uint8_t opcode;
+    uint8_t r0, r1, r2, csr;
+    uint16_t imm5;
+    uint16_t imm16;
+    uint32_t imm26;
+
+    unsigned int delayed_branch;
+    unsigned int tb_flags, synced_flags; /* tb dependent flags.  */
+    int is_jmp;
+
+    struct TranslationBlock *tb;
+    int singlestep_enabled;
+
+    uint32_t features;
+    uint8_t num_breakpoints;
+    uint8_t num_watchpoints;
+} DisasContext;
+
+static const char *regnames[] = {
+    "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+    "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+    "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+    "r24", "r25", "r26/gp", "r27/fp", "r28/sp", "r29/ra",
+    "r30/ea", "r31/ba", "bp0", "bp1", "bp2", "bp3", "wp0",
+    "wp1", "wp2", "wp3"
+};
+
+static inline int zero_extend(unsigned int val, int width)
+{
+    return val & ((1 << width) - 1);
+}
+
+static inline int sign_extend(unsigned int val, int width)
+{
+    int sval;
+
+    /* LSL.  */
+    val <<= 32 - width;
+    sval = val;
+    /* ASR.  */
+    sval >>= 32 - width;
+
+    return sval;
+}
+
+static inline void t_gen_raise_exception(DisasContext *dc, uint32_t index)
+{
+    TCGv_i32 tmp = tcg_const_i32(index);
+
+    gen_helper_raise_exception(cpu_env, tmp);
+    tcg_temp_free_i32(tmp);
+}
+
+static inline void t_gen_illegal_insn(DisasContext *dc)
+{
+    tcg_gen_movi_tl(cpu_pc, dc->pc);
+    gen_helper_ill(cpu_env);
+}
+
+static inline bool use_goto_tb(DisasContext *dc, target_ulong dest)
+{
+    if (unlikely(dc->singlestep_enabled)) {
+        return false;
+    }
+
+#ifndef CONFIG_USER_ONLY
+    return (dc->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK);
+#else
+    return true;
+#endif
+}
+
+static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
+{
+    if (use_goto_tb(dc, dest)) {
+        tcg_gen_goto_tb(n);
+        tcg_gen_movi_tl(cpu_pc, dest);
+        tcg_gen_exit_tb((uintptr_t)dc->tb + n);
+    } else {
+        tcg_gen_movi_tl(cpu_pc, dest);
+        if (dc->singlestep_enabled) {
+            t_gen_raise_exception(dc, EXCP_DEBUG);
+        }
+        tcg_gen_exit_tb(0);
+    }
+}
+
+static void dec_add(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        if (dc->r0 == R_R0) {
+            if (dc->r1 == R_R0 && dc->imm16 == 0) {
+                LOG_DIS("nop\n");
+            } else {
+                LOG_DIS("mvi r%d, %d\n", dc->r1, sign_extend(dc->imm16, 16));
+            }
+        } else {
+            LOG_DIS("addi r%d, r%d, %d\n", dc->r1, dc->r0,
+                    sign_extend(dc->imm16, 16));
+        }
+    } else {
+        LOG_DIS("add r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_addi_tl(cpu_R[dc->r1], cpu_R[dc->r0],
+                sign_extend(dc->imm16, 16));
+    } else {
+        tcg_gen_add_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_and(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("andi r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("and r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_andi_tl(cpu_R[dc->r1], cpu_R[dc->r0],
+                zero_extend(dc->imm16, 16));
+    } else  {
+        if (dc->r0 == 0 && dc->r1 == 0 && dc->r2 == 0) {
+            tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
+            gen_helper_hlt(cpu_env);
+        } else {
+            tcg_gen_and_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+        }
+    }
+}
+
+static void dec_andhi(DisasContext *dc)
+{
+    LOG_DIS("andhi r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm16);
+
+    tcg_gen_andi_tl(cpu_R[dc->r1], cpu_R[dc->r0], (dc->imm16 << 16));
+}
+
+static void dec_b(DisasContext *dc)
+{
+    if (dc->r0 == R_RA) {
+        LOG_DIS("ret\n");
+    } else if (dc->r0 == R_EA) {
+        LOG_DIS("eret\n");
+    } else if (dc->r0 == R_BA) {
+        LOG_DIS("bret\n");
+    } else {
+        LOG_DIS("b r%d\n", dc->r0);
+    }
+
+    /* restore IE.IE in case of an eret */
+    if (dc->r0 == R_EA) {
+        TCGv t0 = tcg_temp_new();
+        TCGLabel *l1 = gen_new_label();
+        tcg_gen_andi_tl(t0, cpu_ie, IE_EIE);
+        tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_IE);
+        tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_EIE, l1);
+        tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
+        gen_set_label(l1);
+        tcg_temp_free(t0);
+    } else if (dc->r0 == R_BA) {
+        TCGv t0 = tcg_temp_new();
+        TCGLabel *l1 = gen_new_label();
+        tcg_gen_andi_tl(t0, cpu_ie, IE_BIE);
+        tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_IE);
+        tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_BIE, l1);
+        tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
+        gen_set_label(l1);
+        tcg_temp_free(t0);
+    }
+    tcg_gen_mov_tl(cpu_pc, cpu_R[dc->r0]);
+
+    dc->is_jmp = DISAS_JUMP;
+}
+
+static void dec_bi(DisasContext *dc)
+{
+    LOG_DIS("bi %d\n", sign_extend(dc->imm26 << 2, 26));
+
+    gen_goto_tb(dc, 0, dc->pc + (sign_extend(dc->imm26 << 2, 26)));
+
+    dc->is_jmp = DISAS_TB_JUMP;
+}
+
+static inline void gen_cond_branch(DisasContext *dc, int cond)
+{
+    TCGLabel *l1 = gen_new_label();
+    tcg_gen_brcond_tl(cond, cpu_R[dc->r0], cpu_R[dc->r1], l1);
+    gen_goto_tb(dc, 0, dc->pc + 4);
+    gen_set_label(l1);
+    gen_goto_tb(dc, 1, dc->pc + (sign_extend(dc->imm16 << 2, 16)));
+    dc->is_jmp = DISAS_TB_JUMP;
+}
+
+static void dec_be(DisasContext *dc)
+{
+    LOG_DIS("be r%d, r%d, %d\n", dc->r1, dc->r0,
+            sign_extend(dc->imm16, 16) * 4);
+
+    gen_cond_branch(dc, TCG_COND_EQ);
+}
+
+static void dec_bg(DisasContext *dc)
+{
+    LOG_DIS("bg r%d, r%d, %d\n", dc->r1, dc->r0,
+            sign_extend(dc->imm16, 16 * 4));
+
+    gen_cond_branch(dc, TCG_COND_GT);
+}
+
+static void dec_bge(DisasContext *dc)
+{
+    LOG_DIS("bge r%d, r%d, %d\n", dc->r1, dc->r0,
+            sign_extend(dc->imm16, 16) * 4);
+
+    gen_cond_branch(dc, TCG_COND_GE);
+}
+
+static void dec_bgeu(DisasContext *dc)
+{
+    LOG_DIS("bgeu r%d, r%d, %d\n", dc->r1, dc->r0,
+            sign_extend(dc->imm16, 16) * 4);
+
+    gen_cond_branch(dc, TCG_COND_GEU);
+}
+
+static void dec_bgu(DisasContext *dc)
+{
+    LOG_DIS("bgu r%d, r%d, %d\n", dc->r1, dc->r0,
+            sign_extend(dc->imm16, 16) * 4);
+
+    gen_cond_branch(dc, TCG_COND_GTU);
+}
+
+static void dec_bne(DisasContext *dc)
+{
+    LOG_DIS("bne r%d, r%d, %d\n", dc->r1, dc->r0,
+            sign_extend(dc->imm16, 16) * 4);
+
+    gen_cond_branch(dc, TCG_COND_NE);
+}
+
+static void dec_call(DisasContext *dc)
+{
+    LOG_DIS("call r%d\n", dc->r0);
+
+    tcg_gen_movi_tl(cpu_R[R_RA], dc->pc + 4);
+    tcg_gen_mov_tl(cpu_pc, cpu_R[dc->r0]);
+
+    dc->is_jmp = DISAS_JUMP;
+}
+
+static void dec_calli(DisasContext *dc)
+{
+    LOG_DIS("calli %d\n", sign_extend(dc->imm26, 26) * 4);
+
+    tcg_gen_movi_tl(cpu_R[R_RA], dc->pc + 4);
+    gen_goto_tb(dc, 0, dc->pc + (sign_extend(dc->imm26 << 2, 26)));
+
+    dc->is_jmp = DISAS_TB_JUMP;
+}
+
+static inline void gen_compare(DisasContext *dc, int cond)
+{
+    int i;
+
+    if (dc->format == OP_FMT_RI) {
+        switch (cond) {
+        case TCG_COND_GEU:
+        case TCG_COND_GTU:
+            i = zero_extend(dc->imm16, 16);
+            break;
+        default:
+            i = sign_extend(dc->imm16, 16);
+            break;
+        }
+
+        tcg_gen_setcondi_tl(cond, cpu_R[dc->r1], cpu_R[dc->r0], i);
+    } else {
+        tcg_gen_setcond_tl(cond, cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_cmpe(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("cmpei r%d, r%d, %d\n", dc->r1, dc->r0,
+                sign_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("cmpe r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    gen_compare(dc, TCG_COND_EQ);
+}
+
+static void dec_cmpg(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("cmpgi r%d, r%d, %d\n", dc->r1, dc->r0,
+                sign_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("cmpg r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    gen_compare(dc, TCG_COND_GT);
+}
+
+static void dec_cmpge(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("cmpgei r%d, r%d, %d\n", dc->r1, dc->r0,
+                sign_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("cmpge r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    gen_compare(dc, TCG_COND_GE);
+}
+
+static void dec_cmpgeu(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("cmpgeui r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("cmpgeu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    gen_compare(dc, TCG_COND_GEU);
+}
+
+static void dec_cmpgu(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("cmpgui r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("cmpgu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    gen_compare(dc, TCG_COND_GTU);
+}
+
+static void dec_cmpne(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("cmpnei r%d, r%d, %d\n", dc->r1, dc->r0,
+                sign_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("cmpne r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    gen_compare(dc, TCG_COND_NE);
+}
+
+static void dec_divu(DisasContext *dc)
+{
+    TCGLabel *l1;
+
+    LOG_DIS("divu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+
+    if (!(dc->features & LM32_FEATURE_DIVIDE)) {
+        qemu_log_mask(LOG_GUEST_ERROR, "hardware divider is not available\n");
+        t_gen_illegal_insn(dc);
+        return;
+    }
+
+    l1 = gen_new_label();
+    tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[dc->r1], 0, l1);
+    tcg_gen_movi_tl(cpu_pc, dc->pc);
+    t_gen_raise_exception(dc, EXCP_DIVIDE_BY_ZERO);
+    gen_set_label(l1);
+    tcg_gen_divu_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+}
+
+static void dec_lb(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("lb r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_ld8s(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_lbu(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("lbu r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_ld8u(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_lh(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("lh r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_ld16s(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_lhu(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("lhu r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_ld16u(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_lw(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("lw r%d, (r%d+%d)\n", dc->r1, dc->r0, sign_extend(dc->imm16, 16));
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_ld32s(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_modu(DisasContext *dc)
+{
+    TCGLabel *l1;
+
+    LOG_DIS("modu r%d, r%d, %d\n", dc->r2, dc->r0, dc->r1);
+
+    if (!(dc->features & LM32_FEATURE_DIVIDE)) {
+        qemu_log_mask(LOG_GUEST_ERROR, "hardware divider is not available\n");
+        t_gen_illegal_insn(dc);
+        return;
+    }
+
+    l1 = gen_new_label();
+    tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[dc->r1], 0, l1);
+    tcg_gen_movi_tl(cpu_pc, dc->pc);
+    t_gen_raise_exception(dc, EXCP_DIVIDE_BY_ZERO);
+    gen_set_label(l1);
+    tcg_gen_remu_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+}
+
+static void dec_mul(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("muli r%d, r%d, %d\n", dc->r1, dc->r0,
+                sign_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("mul r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (!(dc->features & LM32_FEATURE_MULTIPLY)) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "hardware multiplier is not available\n");
+        t_gen_illegal_insn(dc);
+        return;
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_muli_tl(cpu_R[dc->r1], cpu_R[dc->r0],
+                sign_extend(dc->imm16, 16));
+    } else {
+        tcg_gen_mul_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_nor(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("nori r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("nor r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        TCGv t0 = tcg_temp_new();
+        tcg_gen_movi_tl(t0, zero_extend(dc->imm16, 16));
+        tcg_gen_nor_tl(cpu_R[dc->r1], cpu_R[dc->r0], t0);
+        tcg_temp_free(t0);
+    } else {
+        tcg_gen_nor_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_or(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("ori r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        if (dc->r1 == R_R0) {
+            LOG_DIS("mv r%d, r%d\n", dc->r2, dc->r0);
+        } else {
+            LOG_DIS("or r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+        }
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_ori_tl(cpu_R[dc->r1], cpu_R[dc->r0],
+                zero_extend(dc->imm16, 16));
+    } else {
+        tcg_gen_or_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_orhi(DisasContext *dc)
+{
+    if (dc->r0 == R_R0) {
+        LOG_DIS("mvhi r%d, %d\n", dc->r1, dc->imm16);
+    } else {
+        LOG_DIS("orhi r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm16);
+    }
+
+    tcg_gen_ori_tl(cpu_R[dc->r1], cpu_R[dc->r0], (dc->imm16 << 16));
+}
+
+static void dec_scall(DisasContext *dc)
+{
+    switch (dc->imm5) {
+    case 2:
+        LOG_DIS("break\n");
+        tcg_gen_movi_tl(cpu_pc, dc->pc);
+        t_gen_raise_exception(dc, EXCP_BREAKPOINT);
+        break;
+    case 7:
+        LOG_DIS("scall\n");
+        tcg_gen_movi_tl(cpu_pc, dc->pc);
+        t_gen_raise_exception(dc, EXCP_SYSTEMCALL);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "invalid opcode @0x%x", dc->pc);
+        t_gen_illegal_insn(dc);
+        break;
+    }
+}
+
+static void dec_rcsr(DisasContext *dc)
+{
+    LOG_DIS("rcsr r%d, %d\n", dc->r2, dc->csr);
+
+    switch (dc->csr) {
+    case CSR_IE:
+        tcg_gen_mov_tl(cpu_R[dc->r2], cpu_ie);
+        break;
+    case CSR_IM:
+        gen_helper_rcsr_im(cpu_R[dc->r2], cpu_env);
+        break;
+    case CSR_IP:
+        gen_helper_rcsr_ip(cpu_R[dc->r2], cpu_env);
+        break;
+    case CSR_CC:
+        tcg_gen_mov_tl(cpu_R[dc->r2], cpu_cc);
+        break;
+    case CSR_CFG:
+        tcg_gen_mov_tl(cpu_R[dc->r2], cpu_cfg);
+        break;
+    case CSR_EBA:
+        tcg_gen_mov_tl(cpu_R[dc->r2], cpu_eba);
+        break;
+    case CSR_DC:
+        tcg_gen_mov_tl(cpu_R[dc->r2], cpu_dc);
+        break;
+    case CSR_DEBA:
+        tcg_gen_mov_tl(cpu_R[dc->r2], cpu_deba);
+        break;
+    case CSR_JTX:
+        gen_helper_rcsr_jtx(cpu_R[dc->r2], cpu_env);
+        break;
+    case CSR_JRX:
+        gen_helper_rcsr_jrx(cpu_R[dc->r2], cpu_env);
+        break;
+    case CSR_ICC:
+    case CSR_DCC:
+    case CSR_BP0:
+    case CSR_BP1:
+    case CSR_BP2:
+    case CSR_BP3:
+    case CSR_WP0:
+    case CSR_WP1:
+    case CSR_WP2:
+    case CSR_WP3:
+        qemu_log_mask(LOG_GUEST_ERROR, "invalid read access csr=%x\n", dc->csr);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "read_csr: unknown csr=%x\n", dc->csr);
+        break;
+    }
+}
+
+static void dec_sb(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("sb (r%d+%d), r%d\n", dc->r0, dc->imm16, dc->r1);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_st8(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_sextb(DisasContext *dc)
+{
+    LOG_DIS("sextb r%d, r%d\n", dc->r2, dc->r0);
+
+    if (!(dc->features & LM32_FEATURE_SIGN_EXTEND)) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "hardware sign extender is not available\n");
+        t_gen_illegal_insn(dc);
+        return;
+    }
+
+    tcg_gen_ext8s_tl(cpu_R[dc->r2], cpu_R[dc->r0]);
+}
+
+static void dec_sexth(DisasContext *dc)
+{
+    LOG_DIS("sexth r%d, r%d\n", dc->r2, dc->r0);
+
+    if (!(dc->features & LM32_FEATURE_SIGN_EXTEND)) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "hardware sign extender is not available\n");
+        t_gen_illegal_insn(dc);
+        return;
+    }
+
+    tcg_gen_ext16s_tl(cpu_R[dc->r2], cpu_R[dc->r0]);
+}
+
+static void dec_sh(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("sh (r%d+%d), r%d\n", dc->r0, dc->imm16, dc->r1);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_st16(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_sl(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("sli r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm5);
+    } else {
+        LOG_DIS("sl r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (!(dc->features & LM32_FEATURE_SHIFT)) {
+        qemu_log_mask(LOG_GUEST_ERROR, "hardware shifter is not available\n");
+        t_gen_illegal_insn(dc);
+        return;
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_shli_tl(cpu_R[dc->r1], cpu_R[dc->r0], dc->imm5);
+    } else {
+        TCGv t0 = tcg_temp_new();
+        tcg_gen_andi_tl(t0, cpu_R[dc->r1], 0x1f);
+        tcg_gen_shl_tl(cpu_R[dc->r2], cpu_R[dc->r0], t0);
+        tcg_temp_free(t0);
+    }
+}
+
+static void dec_sr(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("sri r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm5);
+    } else {
+        LOG_DIS("sr r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    /* The real CPU (w/o hardware shifter) only supports right shift by exactly
+     * one bit */
+    if (dc->format == OP_FMT_RI) {
+        if (!(dc->features & LM32_FEATURE_SHIFT) && (dc->imm5 != 1)) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                    "hardware shifter is not available\n");
+            t_gen_illegal_insn(dc);
+            return;
+        }
+        tcg_gen_sari_tl(cpu_R[dc->r1], cpu_R[dc->r0], dc->imm5);
+    } else {
+        TCGLabel *l1 = gen_new_label();
+        TCGLabel *l2 = gen_new_label();
+        TCGv t0 = tcg_temp_local_new();
+        tcg_gen_andi_tl(t0, cpu_R[dc->r1], 0x1f);
+
+        if (!(dc->features & LM32_FEATURE_SHIFT)) {
+            tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 1, l1);
+            t_gen_illegal_insn(dc);
+            tcg_gen_br(l2);
+        }
+
+        gen_set_label(l1);
+        tcg_gen_sar_tl(cpu_R[dc->r2], cpu_R[dc->r0], t0);
+        gen_set_label(l2);
+
+        tcg_temp_free(t0);
+    }
+}
+
+static void dec_sru(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("srui r%d, r%d, %d\n", dc->r1, dc->r0, dc->imm5);
+    } else {
+        LOG_DIS("sru r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        if (!(dc->features & LM32_FEATURE_SHIFT) && (dc->imm5 != 1)) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                    "hardware shifter is not available\n");
+            t_gen_illegal_insn(dc);
+            return;
+        }
+        tcg_gen_shri_tl(cpu_R[dc->r1], cpu_R[dc->r0], dc->imm5);
+    } else {
+        TCGLabel *l1 = gen_new_label();
+        TCGLabel *l2 = gen_new_label();
+        TCGv t0 = tcg_temp_local_new();
+        tcg_gen_andi_tl(t0, cpu_R[dc->r1], 0x1f);
+
+        if (!(dc->features & LM32_FEATURE_SHIFT)) {
+            tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 1, l1);
+            t_gen_illegal_insn(dc);
+            tcg_gen_br(l2);
+        }
+
+        gen_set_label(l1);
+        tcg_gen_shr_tl(cpu_R[dc->r2], cpu_R[dc->r0], t0);
+        gen_set_label(l2);
+
+        tcg_temp_free(t0);
+    }
+}
+
+static void dec_sub(DisasContext *dc)
+{
+    LOG_DIS("sub r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+
+    tcg_gen_sub_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+}
+
+static void dec_sw(DisasContext *dc)
+{
+    TCGv t0;
+
+    LOG_DIS("sw (r%d+%d), r%d\n", dc->r0, sign_extend(dc->imm16, 16), dc->r1);
+
+    t0 = tcg_temp_new();
+    tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
+    tcg_gen_qemu_st32(cpu_R[dc->r1], t0, MEM_INDEX);
+    tcg_temp_free(t0);
+}
+
+static void dec_user(DisasContext *dc)
+{
+    LOG_DIS("user");
+
+    qemu_log_mask(LOG_GUEST_ERROR, "user instruction undefined\n");
+    t_gen_illegal_insn(dc);
+}
+
+static void dec_wcsr(DisasContext *dc)
+{
+    int no;
+
+    LOG_DIS("wcsr %d, r%d\n", dc->csr, dc->r1);
+
+    switch (dc->csr) {
+    case CSR_IE:
+        tcg_gen_mov_tl(cpu_ie, cpu_R[dc->r1]);
+        tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
+        dc->is_jmp = DISAS_UPDATE;
+        break;
+    case CSR_IM:
+        /* mark as an io operation because it could cause an interrupt */
+        if (dc->tb->cflags & CF_USE_ICOUNT) {
+            gen_io_start();
+        }
+        gen_helper_wcsr_im(cpu_env, cpu_R[dc->r1]);
+        tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
+        if (dc->tb->cflags & CF_USE_ICOUNT) {
+            gen_io_end();
+        }
+        dc->is_jmp = DISAS_UPDATE;
+        break;
+    case CSR_IP:
+        /* mark as an io operation because it could cause an interrupt */
+        if (dc->tb->cflags & CF_USE_ICOUNT) {
+            gen_io_start();
+        }
+        gen_helper_wcsr_ip(cpu_env, cpu_R[dc->r1]);
+        tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
+        if (dc->tb->cflags & CF_USE_ICOUNT) {
+            gen_io_end();
+        }
+        dc->is_jmp = DISAS_UPDATE;
+        break;
+    case CSR_ICC:
+        /* TODO */
+        break;
+    case CSR_DCC:
+        /* TODO */
+        break;
+    case CSR_EBA:
+        tcg_gen_mov_tl(cpu_eba, cpu_R[dc->r1]);
+        break;
+    case CSR_DEBA:
+        tcg_gen_mov_tl(cpu_deba, cpu_R[dc->r1]);
+        break;
+    case CSR_JTX:
+        gen_helper_wcsr_jtx(cpu_env, cpu_R[dc->r1]);
+        break;
+    case CSR_JRX:
+        gen_helper_wcsr_jrx(cpu_env, cpu_R[dc->r1]);
+        break;
+    case CSR_DC:
+        gen_helper_wcsr_dc(cpu_env, cpu_R[dc->r1]);
+        break;
+    case CSR_BP0:
+    case CSR_BP1:
+    case CSR_BP2:
+    case CSR_BP3:
+        no = dc->csr - CSR_BP0;
+        if (dc->num_breakpoints <= no) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "breakpoint #%i is not available\n", no);
+            t_gen_illegal_insn(dc);
+            break;
+        }
+        gen_helper_wcsr_bp(cpu_env, cpu_R[dc->r1], tcg_const_i32(no));
+        break;
+    case CSR_WP0:
+    case CSR_WP1:
+    case CSR_WP2:
+    case CSR_WP3:
+        no = dc->csr - CSR_WP0;
+        if (dc->num_watchpoints <= no) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "watchpoint #%i is not available\n", no);
+            t_gen_illegal_insn(dc);
+            break;
+        }
+        gen_helper_wcsr_wp(cpu_env, cpu_R[dc->r1], tcg_const_i32(no));
+        break;
+    case CSR_CC:
+    case CSR_CFG:
+        qemu_log_mask(LOG_GUEST_ERROR, "invalid write access csr=%x\n",
+                      dc->csr);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "write_csr: unknown csr=%x\n",
+                      dc->csr);
+        break;
+    }
+}
+
+static void dec_xnor(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("xnori r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        if (dc->r1 == R_R0) {
+            LOG_DIS("not r%d, r%d\n", dc->r2, dc->r0);
+        } else {
+            LOG_DIS("xnor r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+        }
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_xori_tl(cpu_R[dc->r1], cpu_R[dc->r0],
+                zero_extend(dc->imm16, 16));
+        tcg_gen_not_tl(cpu_R[dc->r1], cpu_R[dc->r1]);
+    } else {
+        tcg_gen_eqv_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_xor(DisasContext *dc)
+{
+    if (dc->format == OP_FMT_RI) {
+        LOG_DIS("xori r%d, r%d, %d\n", dc->r1, dc->r0,
+                zero_extend(dc->imm16, 16));
+    } else {
+        LOG_DIS("xor r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
+    }
+
+    if (dc->format == OP_FMT_RI) {
+        tcg_gen_xori_tl(cpu_R[dc->r1], cpu_R[dc->r0],
+                zero_extend(dc->imm16, 16));
+    } else {
+        tcg_gen_xor_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
+    }
+}
+
+static void dec_ill(DisasContext *dc)
+{
+    qemu_log_mask(LOG_GUEST_ERROR, "invalid opcode 0x%02x\n", dc->opcode);
+    t_gen_illegal_insn(dc);
+}
+
+typedef void (*DecoderInfo)(DisasContext *dc);
+static const DecoderInfo decinfo[] = {
+    dec_sru, dec_nor, dec_mul, dec_sh, dec_lb, dec_sr, dec_xor, dec_lh,
+    dec_and, dec_xnor, dec_lw, dec_lhu, dec_sb, dec_add, dec_or, dec_sl,
+    dec_lbu, dec_be, dec_bg, dec_bge, dec_bgeu, dec_bgu, dec_sw, dec_bne,
+    dec_andhi, dec_cmpe, dec_cmpg, dec_cmpge, dec_cmpgeu, dec_cmpgu, dec_orhi,
+    dec_cmpne,
+    dec_sru, dec_nor, dec_mul, dec_divu, dec_rcsr, dec_sr, dec_xor, dec_ill,
+    dec_and, dec_xnor, dec_ill, dec_scall, dec_sextb, dec_add, dec_or, dec_sl,
+    dec_b, dec_modu, dec_sub, dec_user, dec_wcsr, dec_ill, dec_call, dec_sexth,
+    dec_bi, dec_cmpe, dec_cmpg, dec_cmpge, dec_cmpgeu, dec_cmpgu, dec_calli,
+    dec_cmpne
+};
+
+static inline void decode(DisasContext *dc, uint32_t ir)
+{
+    dc->ir = ir;
+    LOG_DIS("%8.8x\t", dc->ir);
+
+    dc->opcode = EXTRACT_FIELD(ir, 26, 31);
+
+    dc->imm5 = EXTRACT_FIELD(ir, 0, 4);
+    dc->imm16 = EXTRACT_FIELD(ir, 0, 15);
+    dc->imm26 = EXTRACT_FIELD(ir, 0, 25);
+
+    dc->csr = EXTRACT_FIELD(ir, 21, 25);
+    dc->r0 = EXTRACT_FIELD(ir, 21, 25);
+    dc->r1 = EXTRACT_FIELD(ir, 16, 20);
+    dc->r2 = EXTRACT_FIELD(ir, 11, 15);
+
+    /* bit 31 seems to indicate insn type.  */
+    if (ir & (1 << 31)) {
+        dc->format = OP_FMT_RR;
+    } else {
+        dc->format = OP_FMT_RI;
+    }
+
+    assert(ARRAY_SIZE(decinfo) == 64);
+    assert(dc->opcode < 64);
+
+    decinfo[dc->opcode](dc);
+}
+
+/* generate intermediate code for basic block 'tb'.  */
+void gen_intermediate_code(CPULM32State *env, struct TranslationBlock *tb)
+{
+    LM32CPU *cpu = lm32_env_get_cpu(env);
+    CPUState *cs = CPU(cpu);
+    struct DisasContext ctx, *dc = &ctx;
+    uint32_t pc_start;
+    uint32_t next_page_start;
+    int num_insns;
+    int max_insns;
+
+    pc_start = tb->pc;
+    dc->features = cpu->features;
+    dc->num_breakpoints = cpu->num_breakpoints;
+    dc->num_watchpoints = cpu->num_watchpoints;
+    dc->tb = tb;
+
+    dc->is_jmp = DISAS_NEXT;
+    dc->pc = pc_start;
+    dc->singlestep_enabled = cs->singlestep_enabled;
+
+    if (pc_start & 3) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "unaligned PC=%x. Ignoring lowest bits.\n", pc_start);
+        pc_start &= ~3;
+    }
+
+    next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
+    num_insns = 0;
+    max_insns = tb->cflags & CF_COUNT_MASK;
+    if (max_insns == 0) {
+        max_insns = CF_COUNT_MASK;
+    }
+    if (max_insns > TCG_MAX_INSNS) {
+        max_insns = TCG_MAX_INSNS;
+    }
+
+    gen_tb_start(tb);
+    do {
+        tcg_gen_insn_start(dc->pc);
+        num_insns++;
+
+        if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
+            tcg_gen_movi_tl(cpu_pc, dc->pc);
+            t_gen_raise_exception(dc, EXCP_DEBUG);
+            dc->is_jmp = DISAS_UPDATE;
+            /* The address covered by the breakpoint must be included in
+               [tb->pc, tb->pc + tb->size) in order to for it to be
+               properly cleared -- thus we increment the PC here so that
+               the logic setting tb->size below does the right thing.  */
+            dc->pc += 4;
+            break;
+        }
+
+        /* Pretty disas.  */
+        LOG_DIS("%8.8x:\t", dc->pc);
+
+        if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
+            gen_io_start();
+        }
+
+        decode(dc, cpu_ldl_code(env, dc->pc));
+        dc->pc += 4;
+    } while (!dc->is_jmp
+         && !tcg_op_buf_full()
+         && !cs->singlestep_enabled
+         && !singlestep
+         && (dc->pc < next_page_start)
+         && num_insns < max_insns);
+
+    if (tb->cflags & CF_LAST_IO) {
+        gen_io_end();
+    }
+
+    if (unlikely(cs->singlestep_enabled)) {
+        if (dc->is_jmp == DISAS_NEXT) {
+            tcg_gen_movi_tl(cpu_pc, dc->pc);
+        }
+        t_gen_raise_exception(dc, EXCP_DEBUG);
+    } else {
+        switch (dc->is_jmp) {
+        case DISAS_NEXT:
+            gen_goto_tb(dc, 1, dc->pc);
+            break;
+        default:
+        case DISAS_JUMP:
+        case DISAS_UPDATE:
+            /* indicate that the hash table must be used
+               to find the next TB */
+            tcg_gen_exit_tb(0);
+            break;
+        case DISAS_TB_JUMP:
+            /* nothing more to generate */
+            break;
+        }
+    }
+
+    gen_tb_end(tb, num_insns);
+
+    tb->size = dc->pc - pc_start;
+    tb->icount = num_insns;
+
+#ifdef DEBUG_DISAS
+    if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)
+        && qemu_log_in_addr_range(pc_start)) {
+        qemu_log_lock();
+        qemu_log("\n");
+        log_target_disas(cs, pc_start, dc->pc - pc_start, 0);
+        qemu_log("\nisize=%d osize=%d\n",
+                 dc->pc - pc_start, tcg_op_buf_count());
+        qemu_log_unlock();
+    }
+#endif
+}
+
+void lm32_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
+                         int flags)
+{
+    LM32CPU *cpu = LM32_CPU(cs);
+    CPULM32State *env = &cpu->env;
+    int i;
+
+    if (!env || !f) {
+        return;
+    }
+
+    cpu_fprintf(f, "IN: PC=%x %s\n",
+                env->pc, lookup_symbol(env->pc));
+
+    cpu_fprintf(f, "ie=%8.8x (IE=%x EIE=%x BIE=%x) im=%8.8x ip=%8.8x\n",
+             env->ie,
+             (env->ie & IE_IE) ? 1 : 0,
+             (env->ie & IE_EIE) ? 1 : 0,
+             (env->ie & IE_BIE) ? 1 : 0,
+             lm32_pic_get_im(env->pic_state),
+             lm32_pic_get_ip(env->pic_state));
+    cpu_fprintf(f, "eba=%8.8x deba=%8.8x\n",
+             env->eba,
+             env->deba);
+
+    for (i = 0; i < 32; i++) {
+        cpu_fprintf(f, "r%2.2d=%8.8x ", i, env->regs[i]);
+        if ((i + 1) % 4 == 0) {
+            cpu_fprintf(f, "\n");
+        }
+    }
+    cpu_fprintf(f, "\n\n");
+}
+
+void restore_state_to_opc(CPULM32State *env, TranslationBlock *tb,
+                          target_ulong *data)
+{
+    env->pc = data[0];
+}
+
+void lm32_translate_init(void)
+{
+    int i;
+
+    cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
+    tcg_ctx.tcg_env = cpu_env;
+
+    for (i = 0; i < ARRAY_SIZE(cpu_R); i++) {
+        cpu_R[i] = tcg_global_mem_new(cpu_env,
+                          offsetof(CPULM32State, regs[i]),
+                          regnames[i]);
+    }
+
+    for (i = 0; i < ARRAY_SIZE(cpu_bp); i++) {
+        cpu_bp[i] = tcg_global_mem_new(cpu_env,
+                          offsetof(CPULM32State, bp[i]),
+                          regnames[32+i]);
+    }
+
+    for (i = 0; i < ARRAY_SIZE(cpu_wp); i++) {
+        cpu_wp[i] = tcg_global_mem_new(cpu_env,
+                          offsetof(CPULM32State, wp[i]),
+                          regnames[36+i]);
+    }
+
+    cpu_pc = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, pc),
+                    "pc");
+    cpu_ie = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, ie),
+                    "ie");
+    cpu_icc = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, icc),
+                    "icc");
+    cpu_dcc = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, dcc),
+                    "dcc");
+    cpu_cc = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, cc),
+                    "cc");
+    cpu_cfg = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, cfg),
+                    "cfg");
+    cpu_eba = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, eba),
+                    "eba");
+    cpu_dc = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, dc),
+                    "dc");
+    cpu_deba = tcg_global_mem_new(cpu_env,
+                    offsetof(CPULM32State, deba),
+                    "deba");
+}
+