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[Qemu-devel] [PATCH 01/35] target/mips: Raise a RI when given fs is n/a


From: Yongbok Kim
Subject: [Qemu-devel] [PATCH 01/35] target/mips: Raise a RI when given fs is n/a from CTC1
Date: Wed, 20 Jun 2018 13:05:46 +0100

From: Yongbok Kim <address@hidden>

Fix to raise a Reserved Instruction exception when given fs is not
available from CTC1.

Signed-off-by: Yongbok Kim <address@hidden>
---
 target/mips/op_helper.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index 9025f42..41d3634 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -2627,6 +2627,9 @@ void helper_ctc1(CPUMIPSState *env, target_ulong arg1, 
uint32_t fs, uint32_t rt)
                (env->active_fpu.fcr31 & ~(env->active_fpu.fcr31_rw_bitmask));
         break;
     default:
+        if (env->insn_flags & ISA_MIPS32R6) {
+            do_raise_exception(env, EXCP_RI, GETPC());
+        }
         return;
     }
     restore_fp_status(env);
-- 
1.9.1




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