Archipelago » qemu

        /* FIXME: This works around self-modifying code, but only

           if the guest OS handles it properly, and if there's no

           such code executed in uncached space. */

        if (!(rt & 0x3))

            switch ((rt >> 2) & 0x7) {

            case 4:

                GEN_LOAD_REG_TN(T0, rs);

                GEN_LOAD_IMM_TN(T1, imm);

                gen_op_flush_icache_range();

                break;

            case 2:

            case 1:

            case 0:

                /* Can be very inefficient. */

                gen_op_flush_icache_all();

                break;

            default:

                break;

            }

        break;