From: LIU Zhiwei <zhiwei_liu@c-sky.com>
To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org
Cc: palmer@dabbelt.com, richard.henderson@linaro.org,
bin.meng@windriver.com,
Alistair Francis <alistair.francis@wdc.com>,
LIU Zhiwei <zhiwei_liu@c-sky.com>
Subject: [PATCH v2 16/37] target/riscv: Signed MSW 32x16 Multiply and Add Instructions
Date: Thu, 10 Jun 2021 15:58:47 +0800 [thread overview]
Message-ID: <20210610075908.3305506-17-zhiwei_liu@c-sky.com> (raw)
In-Reply-To: <20210610075908.3305506-1-zhiwei_liu@c-sky.com>
Always contain a 32x16 multiplification and the most significant
word can be used as the result, or an operand for an add or
subtract operation with rounding or saturation.
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/helper.h | 17 ++
target/riscv/insn32.decode | 17 ++
target/riscv/insn_trans/trans_rvp.c.inc | 18 ++
target/riscv/packed_helper.c | 208 ++++++++++++++++++++++++
4 files changed, 260 insertions(+)
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 600e8dee44..854f48d385 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1280,3 +1280,20 @@ DEF_HELPER_4(kmmsb, tl, env, tl, tl, tl)
DEF_HELPER_4(kmmsb_u, tl, env, tl, tl, tl)
DEF_HELPER_3(kwmmul, tl, env, tl, tl)
DEF_HELPER_3(kwmmul_u, tl, env, tl, tl)
+
+DEF_HELPER_3(smmwb, tl, env, tl, tl)
+DEF_HELPER_3(smmwb_u, tl, env, tl, tl)
+DEF_HELPER_3(smmwt, tl, env, tl, tl)
+DEF_HELPER_3(smmwt_u, tl, env, tl, tl)
+DEF_HELPER_4(kmmawb, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawb_u, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt_u, tl, env, tl, tl, tl)
+DEF_HELPER_3(kmmwb2, tl, env, tl, tl)
+DEF_HELPER_3(kmmwb2_u, tl, env, tl, tl)
+DEF_HELPER_3(kmmwt2, tl, env, tl, tl)
+DEF_HELPER_3(kmmwt2_u, tl, env, tl, tl)
+DEF_HELPER_4(kmmawb2, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawb2_u, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt2, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt2_u, tl, env, tl, tl, tl)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 0484de140b..e5a8f663dc 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -883,3 +883,20 @@ kmmsb 0100001 ..... ..... 001 ..... 1110111 @r
kmmsb_u 0101001 ..... ..... 001 ..... 1110111 @r
kwmmul 0110001 ..... ..... 001 ..... 1110111 @r
kwmmul_u 0111001 ..... ..... 001 ..... 1110111 @r
+
+smmwb 0100010 ..... ..... 001 ..... 1110111 @r
+smmwb_u 0101010 ..... ..... 001 ..... 1110111 @r
+smmwt 0110010 ..... ..... 001 ..... 1110111 @r
+smmwt_u 0111010 ..... ..... 001 ..... 1110111 @r
+kmmawb 0100011 ..... ..... 001 ..... 1110111 @r
+kmmawb_u 0101011 ..... ..... 001 ..... 1110111 @r
+kmmawt 0110011 ..... ..... 001 ..... 1110111 @r
+kmmawt_u 0111011 ..... ..... 001 ..... 1110111 @r
+kmmwb2 1000111 ..... ..... 001 ..... 1110111 @r
+kmmwb2_u 1001111 ..... ..... 001 ..... 1110111 @r
+kmmwt2 1010111 ..... ..... 001 ..... 1110111 @r
+kmmwt2_u 1011111 ..... ..... 001 ..... 1110111 @r
+kmmawb2 1100111 ..... ..... 001 ..... 1110111 @r
+kmmawb2_u 1101111 ..... ..... 001 ..... 1110111 @r
+kmmawt2 1110111 ..... ..... 001 ..... 1110111 @r
+kmmawt2_u 1111111 ..... ..... 001 ..... 1110111 @r
diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_trans/trans_rvp.c.inc
index 073558b950..af490a5ef0 100644
--- a/target/riscv/insn_trans/trans_rvp.c.inc
+++ b/target/riscv/insn_trans/trans_rvp.c.inc
@@ -413,3 +413,21 @@ GEN_RVP_R_ACC_OOL(kmmsb);
GEN_RVP_R_ACC_OOL(kmmsb_u);
GEN_RVP_R_OOL(kwmmul);
GEN_RVP_R_OOL(kwmmul_u);
+
+/* Most Significant Word “32x16” Multiply & Add Instructions */
+GEN_RVP_R_OOL(smmwb);
+GEN_RVP_R_OOL(smmwb_u);
+GEN_RVP_R_OOL(smmwt);
+GEN_RVP_R_OOL(smmwt_u);
+GEN_RVP_R_ACC_OOL(kmmawb);
+GEN_RVP_R_ACC_OOL(kmmawb_u);
+GEN_RVP_R_ACC_OOL(kmmawt);
+GEN_RVP_R_ACC_OOL(kmmawt_u);
+GEN_RVP_R_OOL(kmmwb2);
+GEN_RVP_R_OOL(kmmwb2_u);
+GEN_RVP_R_OOL(kmmwt2);
+GEN_RVP_R_OOL(kmmwt2_u);
+GEN_RVP_R_ACC_OOL(kmmawb2);
+GEN_RVP_R_ACC_OOL(kmmawb2_u);
+GEN_RVP_R_ACC_OOL(kmmawt2);
+GEN_RVP_R_ACC_OOL(kmmawt2_u);
diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c
index 465cb5a3b3..868a1a71ba 100644
--- a/target/riscv/packed_helper.c
+++ b/target/riscv/packed_helper.c
@@ -1468,3 +1468,211 @@ static inline void do_kwmmul_u(CPURISCVState *env, void *vd, void *va,
}
RVPR(kwmmul_u, 1, 4);
+
+/* Most Significant Word “32x16” Multiply & Add Instructions */
+static inline void do_smmwb(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i)] >> 16;
+}
+
+RVPR(smmwb, 1, 4);
+
+static inline void do_smmwb_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i)] + (1ull << 15)) >> 16;
+}
+
+RVPR(smmwb_u, 1, 4);
+
+static inline void do_smmwt(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 16;
+}
+
+RVPR(smmwt, 1, 4);
+
+static inline void do_smmwt_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] + (1ull << 15)) >> 16;
+}
+
+RVPR(smmwt_u, 1, 4);
+
+static inline void do_kmmawb(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, (int64_t)a[H4(i)] * b[H2(2 * i)] >> 16, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb, 1, 4);
+
+static inline void do_kmmawb_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, ((int64_t)a[H4(i)] * b[H2(2 * i)] +
+ (1ull << 15)) >> 16, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb_u, 1, 4);
+
+static inline void do_kmmawt(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 16,
+ c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt, 1, 4);
+
+static inline void do_kmmawt_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] +
+ (1ull << 15)) >> 16, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt_u, 1, 4);
+
+static inline void do_kmmwb2(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i)] >> 15;
+ }
+}
+
+RVPR(kmmwb2, 1, 4);
+
+static inline void do_kmmwb2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i)] + (1ull << 14)) >> 15;
+ }
+}
+
+RVPR(kmmwb2_u, 1, 4);
+
+static inline void do_kmmwt2(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 15;
+ }
+}
+
+RVPR(kmmwt2, 1, 4);
+
+static inline void do_kmmwt2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] + (1ull << 14)) >> 15;
+ }
+}
+
+RVPR(kmmwt2_u, 1, 4);
+
+static inline void do_kmmawb2(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = (int64_t)a[H4(i)] * b[H2(2 * i)] >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb2, 1, 4);
+
+static inline void do_kmmawb2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = ((int64_t)a[H4(i)] * b[H2(2 * i)] + (1ull << 14)) >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb2_u, 1, 4);
+
+static inline void do_kmmawt2(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt2, 1, 4);
+
+static inline void do_kmmawt2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] + (1ull << 14)) >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt2_u, 1, 4);
--
2.25.1
next prev parent reply other threads:[~2021-06-10 8:21 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 7:58 [PATCH v2 00/37] target/riscv: support packed extension v0.9.4 LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 01/37] target/riscv: implementation-defined constant parameters LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 02/37] target/riscv: Make the vector helper functions public LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 03/37] target/riscv: 16-bit Addition & Subtraction Instructions LIU Zhiwei
2021-06-10 18:00 ` Richard Henderson
2021-06-10 7:58 ` [PATCH v2 04/37] target/riscv: 8-bit Addition & Subtraction Instruction LIU Zhiwei
2021-06-10 19:39 ` Richard Henderson
2021-06-11 4:36 ` LIU Zhiwei
2021-06-24 6:05 ` LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 05/37] target/riscv: SIMD 16-bit Shift Instructions LIU Zhiwei
2021-06-10 19:44 ` Richard Henderson
2021-06-10 7:58 ` [PATCH v2 06/37] target/riscv: SIMD 8-bit " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 07/37] target/riscv: SIMD 16-bit Compare Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 08/37] target/riscv: SIMD 8-bit " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 09/37] target/riscv: SIMD 16-bit Multiply Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 10/37] target/riscv: SIMD 8-bit " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 11/37] target/riscv: SIMD 16-bit Miscellaneous Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 12/37] target/riscv: SIMD 8-bit " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 13/37] target/riscv: 8-bit Unpacking Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 14/37] target/riscv: 16-bit Packing Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 15/37] target/riscv: Signed MSW 32x32 Multiply and Add Instructions LIU Zhiwei
2021-06-10 7:58 ` LIU Zhiwei [this message]
2021-06-10 7:58 ` [PATCH v2 17/37] target/riscv: Signed 16-bit Multiply 32-bit Add/Subtract Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 18/37] target/riscv: Signed 16-bit Multiply 64-bit " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 19/37] target/riscv: Partial-SIMD Miscellaneous Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 20/37] target/riscv: 8-bit Multiply with 32-bit Add Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 21/37] target/riscv: 64-bit Add/Subtract Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 22/37] target/riscv: 32-bit Multiply " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 23/37] target/riscv: Signed 16-bit Multiply with " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 24/37] target/riscv: Non-SIMD Q15 saturation ALU Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 25/37] target/riscv: Non-SIMD Q31 " LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 26/37] target/riscv: 32-bit Computation Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 27/37] target/riscv: Non-SIMD Miscellaneous Instructions LIU Zhiwei
2021-06-10 7:58 ` [PATCH v2 28/37] target/riscv: RV64 Only SIMD 32-bit Add/Subtract Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 29/37] target/riscv: RV64 Only SIMD 32-bit Shift Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 30/37] target/riscv: RV64 Only SIMD 32-bit Miscellaneous Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 31/37] target/riscv: RV64 Only SIMD Q15 saturating Multiply Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 32/37] target/riscv: RV64 Only 32-bit " LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 33/37] target/riscv: RV64 Only 32-bit Multiply & Add Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 34/37] target/riscv: RV64 Only 32-bit Parallel " LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 35/37] target/riscv: RV64 Only Non-SIMD 32-bit Shift Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 36/37] target/riscv: RV64 Only 32-bit Packing Instructions LIU Zhiwei
2021-06-10 7:59 ` [PATCH v2 37/37] target/riscv: configure and turn on packed extension from command line LIU Zhiwei
2021-06-14 22:55 ` [PATCH v2 00/37] target/riscv: support packed extension v0.9.4 no-reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210610075908.3305506-17-zhiwei_liu@c-sky.com \
--to=zhiwei_liu@c-sky.com \
--cc=alistair.francis@wdc.com \
--cc=bin.meng@windriver.com \
--cc=palmer@dabbelt.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-riscv@nongnu.org \
--cc=richard.henderson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).