Example #1
0
static void gen_store_v10(DisasContext *dc, TCGv addr, TCGv val,
                       unsigned int size)
{
    int mem_index = cpu_mmu_index(dc->env);

    /* If we get a fault on a delayslot we must keep the jmp state in
       the cpu-state to be able to re-execute the jmp.  */
    if (dc->delayed_branch == 1) {
        cris_store_direct_jmp(dc);
    }

    /* Conditional writes. We only support the kind were X is known
       at translation time.  */
    if (dc->flagx_known && dc->flags_x) {
        gen_store_v10_conditional(dc, addr, val, size, mem_index);
        return;
    }

    if (size == 1) {
        tcg_gen_qemu_st8(val, addr, mem_index);
    } else if (size == 2) {
        tcg_gen_qemu_st16(val, addr, mem_index);
    } else {
        tcg_gen_qemu_st32(val, addr, mem_index);
    }
}
Example #2
0
static void gen_store_v10_conditional(DisasContext *dc, TCGv addr, TCGv val,
                       unsigned int size, int mem_index)
{
    int l1 = gen_new_label();
    TCGv taddr = tcg_temp_local_new();
    TCGv tval = tcg_temp_local_new();
    TCGv t1 = tcg_temp_local_new();
    dc->postinc = 0;
    cris_evaluate_flags(dc);

    tcg_gen_mov_tl(taddr, addr);
    tcg_gen_mov_tl(tval, val);

    /* Store only if F flag isn't set */
    tcg_gen_andi_tl(t1, cpu_PR[PR_CCS], F_FLAG_V10);
    tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1);
    if (size == 1) {
        tcg_gen_qemu_st8(tval, taddr, mem_index);
    } else if (size == 2) {
        tcg_gen_qemu_st16(tval, taddr, mem_index);
    } else {
        tcg_gen_qemu_st32(tval, taddr, mem_index);
    }
    gen_set_label(l1);
    tcg_gen_shri_tl(t1, t1, 1);  /* shift F to P position */
    tcg_gen_or_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], t1); /*P=F*/
    tcg_temp_free(t1);
    tcg_temp_free(tval);
    tcg_temp_free(taddr);
}
Example #3
0
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);
}