1286 lines
34 KiB
C
1286 lines
34 KiB
C
/*
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* LatticeMico32 main translation routines.
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*
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* Copyright (c) 2010 Michael Walle <michael@walle.cc>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "cpu.h"
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#include "disas/disas.h"
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#include "exec/helper-proto.h"
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#include "tcg-op.h"
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#include "exec/cpu_ldst.h"
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#include "hw/lm32/lm32_pic.h"
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#include "exec/helper-gen.h"
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#include "trace-tcg.h"
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#define DISAS_LM32 1
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#if DISAS_LM32
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# define LOG_DIS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
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#else
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# define LOG_DIS(...) do { } while (0)
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#endif
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#define EXTRACT_FIELD(src, start, end) \
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(((src) >> start) & ((1 << (end - start + 1)) - 1))
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#define MEM_INDEX 0
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static TCGv_ptr cpu_env;
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static TCGv cpu_R[32];
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static TCGv cpu_pc;
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static TCGv cpu_ie;
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static TCGv cpu_icc;
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static TCGv cpu_dcc;
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static TCGv cpu_cc;
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static TCGv cpu_cfg;
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static TCGv cpu_eba;
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static TCGv cpu_dc;
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static TCGv cpu_deba;
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static TCGv cpu_bp[4];
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static TCGv cpu_wp[4];
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#include "exec/gen-icount.h"
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enum {
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OP_FMT_RI,
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OP_FMT_RR,
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OP_FMT_CR,
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OP_FMT_I
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};
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/* This is the state at translation time. */
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typedef struct DisasContext {
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target_ulong pc;
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/* Decoder. */
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int format;
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uint32_t ir;
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uint8_t opcode;
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uint8_t r0, r1, r2, csr;
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uint16_t imm5;
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uint16_t imm16;
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uint32_t imm26;
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unsigned int delayed_branch;
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unsigned int tb_flags, synced_flags; /* tb dependent flags. */
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int is_jmp;
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struct TranslationBlock *tb;
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int singlestep_enabled;
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uint32_t features;
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uint8_t num_breakpoints;
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uint8_t num_watchpoints;
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} DisasContext;
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static const char *regnames[] = {
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
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"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
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"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
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"r24", "r25", "r26/gp", "r27/fp", "r28/sp", "r29/ra",
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"r30/ea", "r31/ba", "bp0", "bp1", "bp2", "bp3", "wp0",
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"wp1", "wp2", "wp3"
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};
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static inline int zero_extend(unsigned int val, int width)
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{
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return val & ((1 << width) - 1);
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}
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static inline int sign_extend(unsigned int val, int width)
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{
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int sval;
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/* LSL. */
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val <<= 32 - width;
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sval = val;
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/* ASR. */
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sval >>= 32 - width;
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return sval;
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}
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static inline void t_gen_raise_exception(DisasContext *dc, uint32_t index)
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{
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TCGv_i32 tmp = tcg_const_i32(index);
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gen_helper_raise_exception(cpu_env, tmp);
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tcg_temp_free_i32(tmp);
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}
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static inline void t_gen_illegal_insn(DisasContext *dc)
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{
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tcg_gen_movi_tl(cpu_pc, dc->pc);
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gen_helper_ill(cpu_env);
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}
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static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
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{
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TranslationBlock *tb;
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tb = dc->tb;
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if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
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likely(!dc->singlestep_enabled)) {
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tcg_gen_goto_tb(n);
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tcg_gen_movi_tl(cpu_pc, dest);
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tcg_gen_exit_tb((uintptr_t)tb + n);
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} else {
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tcg_gen_movi_tl(cpu_pc, dest);
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if (dc->singlestep_enabled) {
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t_gen_raise_exception(dc, EXCP_DEBUG);
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}
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tcg_gen_exit_tb(0);
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}
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}
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static void dec_add(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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if (dc->r0 == R_R0) {
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if (dc->r1 == R_R0 && dc->imm16 == 0) {
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LOG_DIS("nop\n");
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} else {
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LOG_DIS("mvi r%d, %d\n", dc->r1, sign_extend(dc->imm16, 16));
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}
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} else {
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LOG_DIS("addi r%d, r%d, %d\n", dc->r1, dc->r0,
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sign_extend(dc->imm16, 16));
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}
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} else {
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LOG_DIS("add r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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if (dc->format == OP_FMT_RI) {
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tcg_gen_addi_tl(cpu_R[dc->r1], cpu_R[dc->r0],
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sign_extend(dc->imm16, 16));
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} else {
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tcg_gen_add_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
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}
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}
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static void dec_and(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("andi r%d, r%d, %d\n", dc->r1, dc->r0,
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zero_extend(dc->imm16, 16));
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} else {
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LOG_DIS("and r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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if (dc->format == OP_FMT_RI) {
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tcg_gen_andi_tl(cpu_R[dc->r1], cpu_R[dc->r0],
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zero_extend(dc->imm16, 16));
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} else {
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if (dc->r0 == 0 && dc->r1 == 0 && dc->r2 == 0) {
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tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
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gen_helper_hlt(cpu_env);
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} else {
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tcg_gen_and_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
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}
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}
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}
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static void dec_andhi(DisasContext *dc)
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{
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LOG_DIS("andhi r%d, r%d, %d\n", dc->r2, dc->r0, dc->imm16);
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tcg_gen_andi_tl(cpu_R[dc->r1], cpu_R[dc->r0], (dc->imm16 << 16));
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}
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static void dec_b(DisasContext *dc)
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{
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if (dc->r0 == R_RA) {
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LOG_DIS("ret\n");
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} else if (dc->r0 == R_EA) {
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LOG_DIS("eret\n");
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} else if (dc->r0 == R_BA) {
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LOG_DIS("bret\n");
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} else {
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LOG_DIS("b r%d\n", dc->r0);
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}
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/* restore IE.IE in case of an eret */
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if (dc->r0 == R_EA) {
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TCGv t0 = tcg_temp_new();
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int l1 = gen_new_label();
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tcg_gen_andi_tl(t0, cpu_ie, IE_EIE);
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tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_IE);
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tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_EIE, l1);
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tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
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gen_set_label(l1);
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tcg_temp_free(t0);
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} else if (dc->r0 == R_BA) {
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TCGv t0 = tcg_temp_new();
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int l1 = gen_new_label();
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tcg_gen_andi_tl(t0, cpu_ie, IE_BIE);
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tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_IE);
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tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_BIE, l1);
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tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
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gen_set_label(l1);
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tcg_temp_free(t0);
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}
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tcg_gen_mov_tl(cpu_pc, cpu_R[dc->r0]);
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dc->is_jmp = DISAS_JUMP;
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}
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static void dec_bi(DisasContext *dc)
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{
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LOG_DIS("bi %d\n", sign_extend(dc->imm26 << 2, 26));
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gen_goto_tb(dc, 0, dc->pc + (sign_extend(dc->imm26 << 2, 26)));
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dc->is_jmp = DISAS_TB_JUMP;
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}
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static inline void gen_cond_branch(DisasContext *dc, int cond)
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{
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int l1;
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l1 = gen_new_label();
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tcg_gen_brcond_tl(cond, cpu_R[dc->r0], cpu_R[dc->r1], l1);
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gen_goto_tb(dc, 0, dc->pc + 4);
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gen_set_label(l1);
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gen_goto_tb(dc, 1, dc->pc + (sign_extend(dc->imm16 << 2, 16)));
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dc->is_jmp = DISAS_TB_JUMP;
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}
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static void dec_be(DisasContext *dc)
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{
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LOG_DIS("be r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16) * 4);
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gen_cond_branch(dc, TCG_COND_EQ);
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}
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static void dec_bg(DisasContext *dc)
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{
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LOG_DIS("bg r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16 * 4));
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gen_cond_branch(dc, TCG_COND_GT);
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}
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static void dec_bge(DisasContext *dc)
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{
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LOG_DIS("bge r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16) * 4);
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gen_cond_branch(dc, TCG_COND_GE);
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}
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static void dec_bgeu(DisasContext *dc)
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{
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LOG_DIS("bgeu r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16) * 4);
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gen_cond_branch(dc, TCG_COND_GEU);
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}
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static void dec_bgu(DisasContext *dc)
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{
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LOG_DIS("bgu r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16) * 4);
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gen_cond_branch(dc, TCG_COND_GTU);
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}
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static void dec_bne(DisasContext *dc)
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{
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LOG_DIS("bne r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16) * 4);
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gen_cond_branch(dc, TCG_COND_NE);
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}
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static void dec_call(DisasContext *dc)
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{
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LOG_DIS("call r%d\n", dc->r0);
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tcg_gen_movi_tl(cpu_R[R_RA], dc->pc + 4);
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tcg_gen_mov_tl(cpu_pc, cpu_R[dc->r0]);
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dc->is_jmp = DISAS_JUMP;
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}
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static void dec_calli(DisasContext *dc)
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{
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LOG_DIS("calli %d\n", sign_extend(dc->imm26, 26) * 4);
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tcg_gen_movi_tl(cpu_R[R_RA], dc->pc + 4);
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gen_goto_tb(dc, 0, dc->pc + (sign_extend(dc->imm26 << 2, 26)));
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dc->is_jmp = DISAS_TB_JUMP;
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}
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static inline void gen_compare(DisasContext *dc, int cond)
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{
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int rX = (dc->format == OP_FMT_RR) ? dc->r2 : dc->r1;
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int rY = (dc->format == OP_FMT_RR) ? dc->r0 : dc->r0;
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int rZ = (dc->format == OP_FMT_RR) ? dc->r1 : -1;
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int i;
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if (dc->format == OP_FMT_RI) {
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switch (cond) {
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case TCG_COND_GEU:
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case TCG_COND_GTU:
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i = zero_extend(dc->imm16, 16);
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break;
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default:
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i = sign_extend(dc->imm16, 16);
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break;
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}
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tcg_gen_setcondi_tl(cond, cpu_R[rX], cpu_R[rY], i);
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} else {
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tcg_gen_setcond_tl(cond, cpu_R[rX], cpu_R[rY], cpu_R[rZ]);
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}
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}
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static void dec_cmpe(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("cmpei r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16));
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} else {
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LOG_DIS("cmpe r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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gen_compare(dc, TCG_COND_EQ);
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}
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static void dec_cmpg(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("cmpgi r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16));
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} else {
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LOG_DIS("cmpg r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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gen_compare(dc, TCG_COND_GT);
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}
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static void dec_cmpge(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("cmpgei r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16));
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} else {
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LOG_DIS("cmpge r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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gen_compare(dc, TCG_COND_GE);
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}
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static void dec_cmpgeu(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("cmpgeui r%d, r%d, %d\n", dc->r0, dc->r1,
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zero_extend(dc->imm16, 16));
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} else {
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LOG_DIS("cmpgeu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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gen_compare(dc, TCG_COND_GEU);
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}
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static void dec_cmpgu(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("cmpgui r%d, r%d, %d\n", dc->r0, dc->r1,
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zero_extend(dc->imm16, 16));
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} else {
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LOG_DIS("cmpgu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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gen_compare(dc, TCG_COND_GTU);
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}
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static void dec_cmpne(DisasContext *dc)
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{
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if (dc->format == OP_FMT_RI) {
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LOG_DIS("cmpnei r%d, r%d, %d\n", dc->r0, dc->r1,
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sign_extend(dc->imm16, 16));
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} else {
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LOG_DIS("cmpne r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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}
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gen_compare(dc, TCG_COND_NE);
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}
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static void dec_divu(DisasContext *dc)
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{
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int l1;
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LOG_DIS("divu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
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if (!(dc->features & LM32_FEATURE_DIVIDE)) {
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qemu_log_mask(LOG_GUEST_ERROR, "hardware divider is not available\n");
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t_gen_illegal_insn(dc);
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return;
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}
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l1 = gen_new_label();
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tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[dc->r1], 0, l1);
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tcg_gen_movi_tl(cpu_pc, dc->pc);
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t_gen_raise_exception(dc, EXCP_DIVIDE_BY_ZERO);
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gen_set_label(l1);
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tcg_gen_divu_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
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}
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static void dec_lb(DisasContext *dc)
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{
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TCGv t0;
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LOG_DIS("lb r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
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t0 = tcg_temp_new();
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tcg_gen_addi_tl(t0, cpu_R[dc->r0], sign_extend(dc->imm16, 16));
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tcg_gen_qemu_ld8s(cpu_R[dc->r1], t0, MEM_INDEX);
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tcg_temp_free(t0);
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}
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static void dec_lbu(DisasContext *dc)
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{
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TCGv t0;
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LOG_DIS("lbu r%d, (r%d+%d)\n", dc->r1, dc->r0, dc->imm16);
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t0 = tcg_temp_new();
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|
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)
|
|
{
|
|
int 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->r0, dc->r1,
|
|
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->r0, dc->r1,
|
|
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 {
|
|
int l1 = gen_new_label();
|
|
int 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 {
|
|
int l1 = gen_new_label();
|
|
int 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 r%d, %d\n", dc->r1, dc->csr);
|
|
|
|
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 (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 (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 (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 (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->r0, dc->r1,
|
|
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->r0, dc->r1,
|
|
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)
|
|
{
|
|
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
|
|
tcg_gen_debug_insn_start(dc->pc);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static void check_breakpoint(CPULM32State *env, DisasContext *dc)
|
|
{
|
|
CPUState *cs = CPU(lm32_env_get_cpu(env));
|
|
CPUBreakpoint *bp;
|
|
|
|
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
|
|
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
|
|
if (bp->pc == dc->pc) {
|
|
tcg_gen_movi_tl(cpu_pc, dc->pc);
|
|
t_gen_raise_exception(dc, EXCP_DEBUG);
|
|
dc->is_jmp = DISAS_UPDATE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* generate intermediate code for basic block 'tb'. */
|
|
static inline
|
|
void gen_intermediate_code_internal(LM32CPU *cpu,
|
|
TranslationBlock *tb, bool search_pc)
|
|
{
|
|
CPUState *cs = CPU(cpu);
|
|
CPULM32State *env = &cpu->env;
|
|
struct DisasContext ctx, *dc = &ctx;
|
|
uint16_t *gen_opc_end;
|
|
uint32_t pc_start;
|
|
int j, lj;
|
|
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;
|
|
|
|
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
|
|
|
|
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;
|
|
lj = -1;
|
|
num_insns = 0;
|
|
max_insns = tb->cflags & CF_COUNT_MASK;
|
|
if (max_insns == 0) {
|
|
max_insns = CF_COUNT_MASK;
|
|
}
|
|
|
|
gen_tb_start();
|
|
do {
|
|
check_breakpoint(env, dc);
|
|
|
|
if (search_pc) {
|
|
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
|
|
if (lj < j) {
|
|
lj++;
|
|
while (lj < j) {
|
|
tcg_ctx.gen_opc_instr_start[lj++] = 0;
|
|
}
|
|
}
|
|
tcg_ctx.gen_opc_pc[lj] = dc->pc;
|
|
tcg_ctx.gen_opc_instr_start[lj] = 1;
|
|
tcg_ctx.gen_opc_icount[lj] = num_insns;
|
|
}
|
|
|
|
/* Pretty disas. */
|
|
LOG_DIS("%8.8x:\t", dc->pc);
|
|
|
|
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
|
|
gen_io_start();
|
|
}
|
|
|
|
decode(dc, cpu_ldl_code(env, dc->pc));
|
|
dc->pc += 4;
|
|
num_insns++;
|
|
|
|
} while (!dc->is_jmp
|
|
&& tcg_ctx.gen_opc_ptr < gen_opc_end
|
|
&& !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);
|
|
*tcg_ctx.gen_opc_ptr = INDEX_op_end;
|
|
if (search_pc) {
|
|
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
|
|
lj++;
|
|
while (lj <= j) {
|
|
tcg_ctx.gen_opc_instr_start[lj++] = 0;
|
|
}
|
|
} else {
|
|
tb->size = dc->pc - pc_start;
|
|
tb->icount = num_insns;
|
|
}
|
|
|
|
#ifdef DEBUG_DISAS
|
|
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
|
qemu_log("\n");
|
|
log_target_disas(env, pc_start, dc->pc - pc_start, 0);
|
|
qemu_log("\nisize=%d osize=%td\n",
|
|
dc->pc - pc_start, tcg_ctx.gen_opc_ptr -
|
|
tcg_ctx.gen_opc_buf);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void gen_intermediate_code(CPULM32State *env, struct TranslationBlock *tb)
|
|
{
|
|
gen_intermediate_code_internal(lm32_env_get_cpu(env), tb, false);
|
|
}
|
|
|
|
void gen_intermediate_code_pc(CPULM32State *env, struct TranslationBlock *tb)
|
|
{
|
|
gen_intermediate_code_internal(lm32_env_get_cpu(env), tb, true);
|
|
}
|
|
|
|
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, int pc_pos)
|
|
{
|
|
env->pc = tcg_ctx.gen_opc_pc[pc_pos];
|
|
}
|
|
|
|
void lm32_translate_init(void)
|
|
{
|
|
int i;
|
|
|
|
cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cpu_R); i++) {
|
|
cpu_R[i] = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, regs[i]),
|
|
regnames[i]);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cpu_bp); i++) {
|
|
cpu_bp[i] = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, bp[i]),
|
|
regnames[32+i]);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cpu_wp); i++) {
|
|
cpu_wp[i] = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, wp[i]),
|
|
regnames[36+i]);
|
|
}
|
|
|
|
cpu_pc = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, pc),
|
|
"pc");
|
|
cpu_ie = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, ie),
|
|
"ie");
|
|
cpu_icc = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, icc),
|
|
"icc");
|
|
cpu_dcc = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, dcc),
|
|
"dcc");
|
|
cpu_cc = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, cc),
|
|
"cc");
|
|
cpu_cfg = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, cfg),
|
|
"cfg");
|
|
cpu_eba = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, eba),
|
|
"eba");
|
|
cpu_dc = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, dc),
|
|
"dc");
|
|
cpu_deba = tcg_global_mem_new(TCG_AREG0,
|
|
offsetof(CPULM32State, deba),
|
|
"deba");
|
|
}
|
|
|