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| author | Peter Maydell <peter.maydell@linaro.org> | 2021-08-13 17:11:54 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2021-08-25 10:48:50 +0100 |
| commit | c69e34c6debfb567f6118b59e6efa96a20765dda (patch) | |
| tree | 8359a746705096083497a7780976137d786cb7eb /target/arm | |
| parent | f0ffff5163cb503de236fc766121601592f08744 (diff) | |
| download | qemu-c69e34c6debfb567f6118b59e6efa96a20765dda.zip qemu-c69e34c6debfb567f6118b59e6efa96a20765dda.tar.gz qemu-c69e34c6debfb567f6118b59e6efa96a20765dda.tar.bz2 | |
target/arm: Implement MVE VMLA
Implement the MVE VMLA insn, which multiplies a vector by a scalar
and accumulates into another vector.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/helper-mve.h | 4 | ||||
| -rw-r--r-- | target/arm/mve.decode | 1 | ||||
| -rw-r--r-- | target/arm/mve_helper.c | 5 | ||||
| -rw-r--r-- | target/arm/translate-mve.c | 1 |
4 files changed, 11 insertions, 0 deletions
diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 34d644a..328e31e 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -367,6 +367,10 @@ DEF_HELPER_FLAGS_4(mve_vqdmullb_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i3 DEF_HELPER_FLAGS_4(mve_vqdmullt_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) DEF_HELPER_FLAGS_4(mve_vqdmullt_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(mve_vmlab, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(mve_vmlah, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(mve_vmlaw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) + DEF_HELPER_FLAGS_4(mve_vmlasb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) DEF_HELPER_FLAGS_4(mve_vmlash, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) DEF_HELPER_FLAGS_4(mve_vmlasw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index cec5a51..cd9c806 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -413,6 +413,7 @@ VQDMULH_scalar 1110 1110 0 . .. ... 1 ... 0 1110 . 110 .... @2scalar VQRDMULH_scalar 1111 1110 0 . .. ... 1 ... 0 1110 . 110 .... @2scalar # The U bit (28) is don't-care because it does not affect the result +VMLA 111- 1110 0 . .. ... 1 ... 0 1110 . 100 .... @2scalar VMLAS 111- 1110 0 . .. ... 1 ... 1 1110 . 100 .... @2scalar # Vector add across vector diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index ea206c9..8004b9b 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -1008,6 +1008,11 @@ DO_2OP_SAT_SCALAR(vqrdmulh_scalarb, 1, int8_t, DO_QRDMULH_B) DO_2OP_SAT_SCALAR(vqrdmulh_scalarh, 2, int16_t, DO_QRDMULH_H) DO_2OP_SAT_SCALAR(vqrdmulh_scalarw, 4, int32_t, DO_QRDMULH_W) +/* Vector by scalar plus vector */ +#define DO_VMLA(D, N, M) ((N) * (M) + (D)) + +DO_2OP_ACC_SCALAR_U(vmla, DO_VMLA) + /* Vector by vector plus scalar */ #define DO_VMLAS(D, N, M) ((N) * (D) + (M)) diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index 92ed1be..f8899af 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -620,6 +620,7 @@ DO_2OP_SCALAR(VQSUB_U_scalar, vqsubu_scalar) DO_2OP_SCALAR(VQDMULH_scalar, vqdmulh_scalar) DO_2OP_SCALAR(VQRDMULH_scalar, vqrdmulh_scalar) DO_2OP_SCALAR(VBRSR, vbrsr) +DO_2OP_SCALAR(VMLA, vmla) DO_2OP_SCALAR(VMLAS, vmlas) static bool trans_VQDMULLB_scalar(DisasContext *s, arg_2scalar *a) |