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| author | Aurelien Jarno <aurelien@aurel32.net> | 2017-06-01 00:01:09 +0200 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-06-06 15:20:42 -0700 |
| commit | 6c9deca8a1f7008b551dedcc9bde599c428dfd07 (patch) | |
| tree | 01ca4d919feaa325a84ab5ba8db9864a80a8c86f /target/s390x | |
| parent | 9c8be598364d9cfb618e44ee08a30071d9242aca (diff) | |
| download | qemu-6c9deca8a1f7008b551dedcc9bde599c428dfd07.tar.gz | |
target/s390x: implement MOVE INVERSE
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170531220129.27724-11-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 | 12 | ||||
| -rw-r--r-- | target/s390x/translate.c | 8 |
4 files changed, 23 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 86e2bc185e..4b6c75661f 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -3,6 +3,7 @@ DEF_HELPER_FLAGS_4(nc, TCG_CALL_NO_WG, i32, env, i32, i64, i64) DEF_HELPER_FLAGS_4(oc, TCG_CALL_NO_WG, i32, env, i32, i64, i64) DEF_HELPER_FLAGS_4(xc, TCG_CALL_NO_WG, i32, env, i32, i64, i64) DEF_HELPER_FLAGS_4(mvc, TCG_CALL_NO_WG, void, env, i32, i64, i64) +DEF_HELPER_FLAGS_4(mvcin, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_FLAGS_4(clc, TCG_CALL_NO_WG, i32, env, i32, i64, i64) DEF_HELPER_3(mvcl, i32, env, i32, i32) DEF_HELPER_FLAGS_4(clm, TCG_CALL_NO_WG, i32, env, i32, i32, i64) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 39fcce5891..c1303d695d 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -570,6 +570,8 @@ C(0xe548, MVGHI, SIL, GIE, la1, i2, 0, m1_64, mov2, 0) C(0x9200, MVI, SI, Z, la1, i2, 0, m1_8, mov2, 0) C(0xeb52, MVIY, SIY, LD, la1, i2, 0, m1_8, mov2, 0) +/* MOVE INVERSE */ + C(0xe800, MVCIN, SS_a, Z, la1, a2, 0, 0, mvcin, 0) /* MOVE LONG */ C(0x0e00, MVCL, RR_a, Z, 0, 0, 0, 0, mvcl, 0) /* MOVE LONG EXTENDED */ diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 850472e9ff..6faaaddfcc 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -231,6 +231,18 @@ void HELPER(mvc)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src) do_helper_mvc(env, l, dest, src, GETPC()); } +/* move inverse */ +void HELPER(mvcin)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src) +{ + uintptr_t ra = GETPC(); + int i; + + for (i = 0; i <= l; i++) { + uint8_t v = cpu_ldub_data_ra(env, src - i, ra); + cpu_stb_data_ra(env, dest + i, v, ra); + } +} + /* compare unsigned byte arrays */ static uint32_t do_helper_clc(CPUS390XState *env, uint32_t l, uint64_t s1, uint64_t s2, uintptr_t ra) diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 0a35eed6cf..a9b96e7e99 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -2938,6 +2938,14 @@ static ExitStatus op_mvc(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_mvcin(DisasContext *s, DisasOps *o) +{ + TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1)); + gen_helper_mvcin(cpu_env, l, o->addr1, o->in2); + tcg_temp_free_i32(l); + return NO_EXIT; +} + static ExitStatus op_mvcl(DisasContext *s, DisasOps *o) { TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); |