RETURN();
}
+void op_flush_icache_range(void) {
+ CALL_FROM_TB2(tlb_flush_page, env, T0 + T1);
+ RETURN();
+}
+
+void op_flush_icache_all(void) {
+ CALL_FROM_TB1(tb_flush, env);
+ RETURN();
+}
+
/* CP0 functions */
void op_mfc0_index (void)
{
gen_ldst(ctx, op, rt, rs, imm);
break;
case OPC_CACHE:
- /* Treat as a noop */
- break;
+ /* 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;
case OPC_PREF:
/* Treat as a noop */
break;