Archipelago » qemu

static void gen_mfc0 (DisasContext *ctx, int reg, int sel)

{

    const unsigned char *rn;

    if (sel != 0 && reg != 16 && reg != 28) {

        rn = "invalid";

        goto die;

    }

    switch (reg) {

    case 0:

        gen_op_mfc0_index();

        rn = "Index";

        break;

    case 1:

        gen_op_mfc0_random();

        rn = "Random";

        break;

    case 2:

        gen_op_mfc0_entrylo0();

        rn = "EntryLo0";

        break;

    case 3:

        gen_op_mfc0_entrylo1();

        rn = "EntryLo1";

        break;

    case 4:

        gen_op_mfc0_context();

        rn = "Context";

        break;

    case 5:

        gen_op_mfc0_pagemask();

        rn = "PageMask";

        break;

    case 6:

        gen_op_mfc0_wired();

        rn = "Wired";

        break;

    case 8:

        gen_op_mfc0_badvaddr();

        rn = "BadVaddr";

        break;

    case 9:

        gen_op_mfc0_count();

        rn = "Count";

        break;

    case 10:

        gen_op_mfc0_entryhi();

        rn = "EntryHi";

        break;

    case 11:

        gen_op_mfc0_compare();

        rn = "Compare";

        break;

    case 12:

        gen_op_mfc0_status();

        rn = "Status";

        break;

    case 13:

        gen_op_mfc0_cause();

        rn = "Cause";

        break;

    case 14:

        gen_op_mfc0_epc();

        rn = "EPC";

        break;

    case 15:

        gen_op_mfc0_prid();

        rn = "PRid";

        break;

    case 16:

        switch (sel) {

        case 0:

           gen_op_mfc0_config0();

            rn = "Config";

            break;

        case 1:

           gen_op_mfc0_config1();

            rn = "Config1";

            break;

        default:

            rn = "Unknown config register";

            goto die;

        }

        break;

    case 17:

        gen_op_mfc0_lladdr();

        rn = "LLAddr";

        break;

    case 18:

        gen_op_mfc0_watchlo();

        rn = "WatchLo";

        break;

    case 19:

        gen_op_mfc0_watchhi();

        rn = "WatchHi";

        break;

    case 23:

        gen_op_mfc0_debug();

        rn = "Debug";

        break;

    case 24:

        gen_op_mfc0_depc();

        rn = "DEPC";

        break;

    case 28:

        switch (sel) {

        case 0:

            gen_op_mfc0_taglo();

            rn = "TagLo";

            break;

        case 1:

            gen_op_mfc0_datalo();

            rn = "DataLo";

            break;

        default:

            rn = "unknown sel";

            goto die;

        }

        break;

    case 30:

        gen_op_mfc0_errorepc();

        rn = "ErrorEPC";

        break;

    case 31:

        gen_op_mfc0_desave();

        rn = "DESAVE";

        break;

    default:

        rn = "unknown";

       goto die;

    }

#if defined MIPS_DEBUG_DISAS

    if (loglevel & CPU_LOG_TB_IN_ASM) {

        fprintf(logfile, "%08x mfc0 %s => %08x (%d %d)\n",

                env->PC, rn, T0, reg, sel);

    }

#endif

    return;

die:

#if defined MIPS_DEBUG_DISAS

    if (loglevel & CPU_LOG_TB_IN_ASM) {

        fprintf(logfile, "%08x mfc0 %s => %08x (%d %d)\n",

                env->PC, rn, T0, reg, sel);

    }

#endif

    generate_exception(ctx, EXCP_RI);

}

        gen_mfc0(ctx, rd, ctx->opcode & 0x7);