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| author | Richard Henderson <richard.henderson@linaro.org> | 2017-10-09 07:44:30 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2018-01-30 10:08:18 -0800 |
| commit | e1b5a5ed6f817515e9328561ad0230f8a7af440a (patch) | |
| tree | 59fcafd11c08dfa33e12c40ecb274b9cfeb67329 /target/hppa/op_helper.c | |
| parent | 3d68ee7bbe34278d5792f5341ba0246069c6191c (diff) | |
| download | qemu-e1b5a5ed6f817515e9328561ad0230f8a7af440a.tar.gz | |
target/hppa: Implement the system mask instructions
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/hppa/op_helper.c')
| -rw-r--r-- | target/hppa/op_helper.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/target/hppa/op_helper.c b/target/hppa/op_helper.c index 4ab4ee8a77..1d56ba497b 100644 --- a/target/hppa/op_helper.c +++ b/target/hppa/op_helper.c @@ -601,3 +601,17 @@ float64 HELPER(fmpynfadd_d)(CPUHPPAState *env, float64 a, float64 b, float64 c) update_fr0_op(env, GETPC()); return ret; } + +#ifndef CONFIG_USER_ONLY +target_ureg HELPER(swap_system_mask)(CPUHPPAState *env, target_ureg nsm) +{ + target_ulong psw = env->psw; + /* ??? On second reading this condition simply seems + to be undefined rather than a diagnosed trap. */ + if (nsm & ~psw & PSW_Q) { + dynexcp(env, EXCP_ILL, GETPC()); + } + env->psw = (psw & ~PSW_SM) | (nsm & PSW_SM); + return psw & PSW_SM; +} +#endif |