diff options
| author | Aurelien Jarno <aurelien@aurel32.net> | 2017-06-04 22:20:32 +0200 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-06-06 15:25:14 -0700 |
| commit | e22dfdb28dbba83d97ea6b40652ccccd7c60365d (patch) | |
| tree | 275a8d654646572e77dbfa378eb0a5de343c850a /target/s390x | |
| parent | 4065ae7634601dfd8be8138fdad5562f798c4f5c (diff) | |
target/s390x: implement LOAD PAIR FROM QUADWORD
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170604202034.16615-2-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/s390x')
| -rw-r--r-- | target/s390x/helper.h | 1 | ||||
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/mem_helper.c | 27 | ||||
| -rw-r--r-- | target/s390x/translate.c | 7 |
4 files changed, 37 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 11a545edb6..054ccd686d 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -103,6 +103,7 @@ DEF_HELPER_FLAGS_2(sfas, TCG_CALL_NO_WG, void, env, i64) DEF_HELPER_FLAGS_1(popcnt, TCG_CALL_NO_RWG_SE, i64, i64) DEF_HELPER_FLAGS_1(stfl, TCG_CALL_NO_RWG, void, env) DEF_HELPER_2(stfle, i32, env, i64) +DEF_HELPER_FLAGS_2(lpq, TCG_CALL_NO_WG, i64, env, i64) #ifndef CONFIG_USER_ONLY DEF_HELPER_3(servc, i32, env, i64, i64) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 9976d290c4..32dee40269 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -517,6 +517,8 @@ /* LOAD PAIR DISJOINT */ D(0xc804, LPD, SSF, ILA, 0, 0, new_P, r3_P32, lpd, 0, MO_TEUL) D(0xc805, LPDG, SSF, ILA, 0, 0, new_P, r3_P64, lpd, 0, MO_TEQ) +/* LOAD PAIR FROM QUADWORD */ + C(0xe38f, LPQ, RXY_a, Z, 0, a2, r1_P, 0, lpq, 0) /* LOAD POSITIVE */ C(0x1000, LPR, RR_a, Z, 0, r2_32s, new, r1_32, abs, abs32) C(0xb900, LPGR, RRE, Z, 0, r2, r1, 0, abs, abs64) diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index be89cc4fb4..f48908cecb 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -1665,6 +1665,33 @@ uint64_t HELPER(lra)(CPUS390XState *env, uint64_t addr) } #endif +/* load pair from quadword */ +uint64_t HELPER(lpq)(CPUS390XState *env, uint64_t addr) +{ + uintptr_t ra = GETPC(); + uint64_t hi, lo; + + if (parallel_cpus) { +#ifndef CONFIG_ATOMIC128 + cpu_loop_exit_atomic(ENV_GET_CPU(env), ra); +#else + int mem_idx = cpu_mmu_index(env, false); + TCGMemOpIdx oi = make_memop_idx(MO_TEQ | MO_ALIGN_16, mem_idx); + Int128 v = helper_atomic_ldo_be_mmu(env, addr, oi, ra); + hi = int128_gethi(v); + lo = int128_getlo(v); +#endif + } else { + check_alignment(env, addr, 16, ra); + + hi = cpu_ldq_data_ra(env, addr + 0, ra); + lo = cpu_ldq_data_ra(env, addr + 8, ra); + } + + env->retxl = lo; + return hi; +} + /* Execute instruction. This instruction executes an insn modified with the contents of r1. It does not change the executed instruction in memory; it does not change the program counter. diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 9f3443ed6f..10019edd53 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -2909,6 +2909,13 @@ static ExitStatus op_lpd(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_lpq(DisasContext *s, DisasOps *o) +{ + gen_helper_lpq(o->out, cpu_env, o->in2); + return_low128(o->out2); + return NO_EXIT; +} + #ifndef CONFIG_USER_ONLY static ExitStatus op_lura(DisasContext *s, DisasOps *o) { |