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| author | Peter Maydell | 2021-06-17 14:15:52 +0200 |
|---|---|---|
| committer | Peter Maydell | 2021-06-21 18:12:50 +0200 |
| commit | 399a8c766c0526b51cd180e1b1c776d6dc95bad8 (patch) | |
| tree | 3ae5fd069fb6fcf432e263b01b784ca92e89d056 /target | |
| parent | target/arm: Implement MVE VABS (diff) | |
| download | qemu-399a8c766c0526b51cd180e1b1c776d6dc95bad8.tar.gz qemu-399a8c766c0526b51cd180e1b1c776d6dc95bad8.tar.xz qemu-399a8c766c0526b51cd180e1b1c776d6dc95bad8.zip | |
target/arm: Implement MVE VNEG
Implement the MVE VNEG insn (both integer and floating point forms).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-9-peter.maydell@linaro.org
Diffstat (limited to 'target')
| -rw-r--r-- | target/arm/helper-mve.h | 6 | ||||
| -rw-r--r-- | target/arm/mve.decode | 2 | ||||
| -rw-r--r-- | target/arm/mve_helper.c | 12 | ||||
| -rw-r--r-- | target/arm/translate-mve.c | 15 |
4 files changed, 35 insertions, 0 deletions
diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 76508d5dd7..733a54d2e3 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -55,3 +55,9 @@ DEF_HELPER_FLAGS_3(mve_vabsh, TCG_CALL_NO_WG, void, env, ptr, ptr) DEF_HELPER_FLAGS_3(mve_vabsw, TCG_CALL_NO_WG, void, env, ptr, ptr) DEF_HELPER_FLAGS_3(mve_vfabsh, TCG_CALL_NO_WG, void, env, ptr, ptr) DEF_HELPER_FLAGS_3(mve_vfabss, TCG_CALL_NO_WG, void, env, ptr, ptr) + +DEF_HELPER_FLAGS_3(mve_vnegb, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vnegh, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vnegw, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vfnegh, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vfnegs, TCG_CALL_NO_WG, void, env, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index 66963dc184..82cc0abcb8 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -80,3 +80,5 @@ VMVN 1111 1111 1 . 11 00 00 ... 0 0101 11 . 0 ... 0 @1op_nosz VABS 1111 1111 1 . 11 .. 01 ... 0 0011 01 . 0 ... 0 @1op VABS_fp 1111 1111 1 . 11 .. 01 ... 0 0111 01 . 0 ... 0 @1op +VNEG 1111 1111 1 . 11 .. 01 ... 0 0011 11 . 0 ... 0 @1op +VNEG_fp 1111 1111 1 . 11 .. 01 ... 0 0111 11 . 0 ... 0 @1op diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index 2cf28f054b..7b662f9e03 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -294,3 +294,15 @@ DO_1OP(vabsw, 4, int32_t, DO_ABS) /* We can do these 64 bits at a time */ DO_1OP(vfabsh, 8, uint64_t, DO_FABSH) DO_1OP(vfabss, 8, uint64_t, DO_FABSS) + +#define DO_NEG(N) (-(N)) +#define DO_FNEGH(N) ((N) ^ dup_const(MO_16, 0x8000)) +#define DO_FNEGS(N) ((N) ^ dup_const(MO_32, 0x80000000)) + +DO_1OP(vnegb, 1, int8_t, DO_NEG) +DO_1OP(vnegh, 2, int16_t, DO_NEG) +DO_1OP(vnegw, 4, int32_t, DO_NEG) + +/* We can do these 64 bits at a time */ +DO_1OP(vfnegh, 8, uint64_t, DO_FNEGH) +DO_1OP(vfnegs, 8, uint64_t, DO_FNEGS) diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index 90996813a8..ad2e4af284 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -200,6 +200,7 @@ static bool do_1op(DisasContext *s, arg_1op *a, MVEGenOneOpFn fn) DO_1OP(VCLZ, vclz) DO_1OP(VCLS, vcls) DO_1OP(VABS, vabs) +DO_1OP(VNEG, vneg) static bool trans_VREV16(DisasContext *s, arg_1op *a) { @@ -252,3 +253,17 @@ static bool trans_VABS_fp(DisasContext *s, arg_1op *a) } return do_1op(s, a, fns[a->size]); } + +static bool trans_VNEG_fp(DisasContext *s, arg_1op *a) +{ + static MVEGenOneOpFn * const fns[] = { + NULL, + gen_helper_mve_vfnegh, + gen_helper_mve_vfnegs, + NULL, + }; + if (!dc_isar_feature(aa32_mve_fp, s)) { + return false; + } + return do_1op(s, a, fns[a->size]); +} |