From: Yongbok Kim <yongbok.kim@mips.com>
Date: Wed, 20 Jun 2018 12:05:46 +0000 (+0100)
Subject: target/mips: Raise a RI when given fs is n/a from CTC1
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f48a2cb21824217a61ec7be797860a0702e5325c;p=qemu.git

target/mips: Raise a RI when given fs is n/a from CTC1

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

Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Reviewed-by: Aleksandar Markovic <aleksandar.markovic@mips.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@mips.com>
---

diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index 9025f42366..41d3634289 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);