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

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

Backports commit f48a2cb21824217a61ec7be797860a0702e5325c from qemu
This commit is contained in:
Yongbok Kim 2018-07-03 00:57:01 -04:00 committed by Lioncash
parent 4abcf14b52
commit 872be901d4
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 3 additions and 0 deletions
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3
qemu/target/mips/op_helper.c
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@ -2617,6 +2617,9 @@ void helper_ctc1(CPUMIPSState *env, target_ulong arg1, uint32_t fs, uint32_t rt)
(env->active_fpu.fcr31 & ~(env->active_fpu.fcr31_rw_bitmask)); (env->active_fpu.fcr31 & ~(env->active_fpu.fcr31_rw_bitmask));
break; break;
default: default:
if (env->insn_flags & ISA_MIPS32R6) {
do_raise_exception(env, EXCP_RI, GETPC());
}
return; return;
} }
restore_fp_status(env); restore_fp_status(env);