Implement Process Priority Register as defined in the PowerPC 2.04 spec.

[qemu.git] / target-ppc / translate.c

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index f4ff22e385085b0ea6c5cad3559f05a88b15581b..08cd92cde71826ccc03b395fff849dae991ed65b 100644 (file)
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -1124,6 +1124,26 @@ GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER)
     } else if (unlikely(Rc(ctx->opcode) != 0)) {
         gen_op_load_gpr_T0(rs);
         gen_set_Rc0(ctx);
+#if defined(TARGET_PPC64)
+    } else {
+        switch (rs) {
+        case 1:
+            /* Set process priority to low */
+            gen_op_store_pri(2);
+            break;
+        case 6:
+            /* Set process priority to medium-low */
+            gen_op_store_pri(3);
+            break;
+        case 2:
+            /* Set process priority to normal */
+            gen_op_store_pri(4);
+            break;
+        default:
+            /* nop */
+            break;
+        }
+#endif
     }
 }