Archipelago » qemu

    /* Minimal set of debug registers, since we don't support debug */

    if (op1 == 0 && crn == 0 && op2 == 0) {

        switch (crm) {

        case 0:

            /* DBGDIDR: just RAZ. In particular this means the

             * "debug architecture version" bits will read as

             * a reserved value, which should cause Linux to

             * not try to use the debug hardware.

             */

            tmp = tcg_const_i32(0);

            store_reg(s, rt, tmp);

            return 0;

        case 1:

        case 2:

            /* DBGDRAR and DBGDSAR: v7 only. Always RAZ since we

             * don't implement memory mapped debug components

             */

            if (ENABLE_ARCH_7) {

                tmp = tcg_const_i32(0);

                store_reg(s, rt, tmp);

                return 0;

            }

            break;

        default:

            break;

        }

    }