Archipelago » qemu

void do_mfc0 (int reg, int sel)

    cpu_abort(env, "mfc0 reg=%d sel=%d\n", reg, sel);

void do_mfc0 (int reg, int sel)

    const unsigned char *rn;

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

        rn = "invalid";

        goto print;

    }

    switch (reg) {

    case 0:

        T0 = env->CP0_index;

        rn = "Index";

        break;

    case 1:

        T0 = cpu_mips_get_random(env);

        rn = "Random";

        break;

    case 2:

        T0 = env->CP0_EntryLo0;

        rn = "EntryLo0";

        break;

    case 3:

        T0 = env->CP0_EntryLo1;

        rn = "EntryLo1";

        break;

    case 4:

        T0 = env->CP0_Context;

        rn = "Context";

        break;

    case 5:

        T0 = env->CP0_PageMask;

        rn = "PageMask";

        break;

    case 6:

        T0 = env->CP0_Wired;

        rn = "Wired";

        break;

    case 8:

        T0 = env->CP0_BadVAddr;

        rn = "BadVaddr";

        break;

    case 9:

        T0 = cpu_mips_get_count(env);

        rn = "Count";

        break;

    case 10:

        T0 = env->CP0_EntryHi;

        rn = "EntryHi";

        break;

    case 11:

        T0 = env->CP0_Compare;

        rn = "Compare";

        break;

    case 12:

        T0 = env->CP0_Status;

        if (env->hflags & MIPS_HFLAG_UM)

            T0 |= (1 << CP0St_UM);

        rn = "Status";

        break;

    case 13:

        T0 = env->CP0_Cause;

        rn = "Cause";

        break;

    case 14:

        T0 = env->CP0_EPC;

        rn = "EPC";

        break;

    case 15:

        T0 = env->CP0_PRid;

        rn = "PRid";

        break;

    case 16:

        switch (sel) {

        case 0:

            T0 = env->CP0_Config0;

            rn = "Config";

            break;

        case 1:

            T0 = env->CP0_Config1;

            rn = "Config1";

            break;

        default:

            rn = "Unknown config register";

            break;

        }

        break;

    case 17:

        T0 = env->CP0_LLAddr >> 4;

        rn = "LLAddr";

        break;

    case 18:

        T0 = env->CP0_WatchLo;

        rn = "WatchLo";

        break;

    case 19:

        T0 = env->CP0_WatchHi;

        rn = "WatchHi";

        break;

    case 23:

        T0 = env->CP0_Debug;

        if (env->hflags & MIPS_HFLAG_DM)

            T0 |= 1 << CP0DB_DM;

        rn = "Debug";

        break;

    case 24:

        T0 = env->CP0_DEPC;

        rn = "DEPC";

        break;

    case 28:

        switch (sel) {

        case 0:

            T0 = env->CP0_TagLo;

            rn = "TagLo";

            break;

        case 1:

            T0 = env->CP0_DataLo;

            rn = "DataLo";

            break;

        default:

            rn = "unknown sel";

            break;

        }

        break;

    case 30:

        T0 = env->CP0_ErrorEPC;

        rn = "ErrorEPC";

        break;

    case 31:

        T0 = env->CP0_DESAVE;

        rn = "DESAVE";

        break;

    default:

        rn = "unknown";

        break;

    }

 print:

#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;