| Message ID | 20210624105521.3964-4-zhiwei_liu@c-sky.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/riscv: support packed extension v0.9.4 | expand |
On Thu, Jun 24, 2021 at 9:08 PM LIU Zhiwei <zhiwei_liu@c-sky.com> wrote: > > Include 5 groups: Wrap-around (dropping overflow), Signed Halving, > Unsigned Halving, Signed Saturation, and Unsigned Saturation. > > Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Alistair > --- > target/riscv/helper.h | 30 ++ > target/riscv/insn32.decode | 32 +++ > target/riscv/insn_trans/trans_rvp.c.inc | 117 ++++++++ > target/riscv/meson.build | 1 + > target/riscv/packed_helper.c | 354 ++++++++++++++++++++++++ > target/riscv/translate.c | 1 + > 6 files changed, 535 insertions(+) > create mode 100644 target/riscv/insn_trans/trans_rvp.c.inc > create mode 100644 target/riscv/packed_helper.c > > diff --git a/target/riscv/helper.h b/target/riscv/helper.h > index 415e37bc37..b6a71ade33 100644 > --- a/target/riscv/helper.h > +++ b/target/riscv/helper.h > @@ -1149,3 +1149,33 @@ DEF_HELPER_6(vcompress_vm_b, void, ptr, ptr, ptr, ptr, env, i32) > DEF_HELPER_6(vcompress_vm_h, void, ptr, ptr, ptr, ptr, env, i32) > DEF_HELPER_6(vcompress_vm_w, void, ptr, ptr, ptr, ptr, env, i32) > DEF_HELPER_6(vcompress_vm_d, void, ptr, ptr, ptr, ptr, env, i32) > + > +/* P extension function */ > +DEF_HELPER_3(radd16, tl, env, tl, tl) > +DEF_HELPER_3(uradd16, tl, env, tl, tl) > +DEF_HELPER_3(kadd16, tl, env, tl, tl) > +DEF_HELPER_3(ukadd16, tl, env, tl, tl) > +DEF_HELPER_3(rsub16, tl, env, tl, tl) > +DEF_HELPER_3(ursub16, tl, env, tl, tl) > +DEF_HELPER_3(ksub16, tl, env, tl, tl) > +DEF_HELPER_3(uksub16, tl, env, tl, tl) > +DEF_HELPER_3(cras16, tl, env, tl, tl) > +DEF_HELPER_3(rcras16, tl, env, tl, tl) > +DEF_HELPER_3(urcras16, tl, env, tl, tl) > +DEF_HELPER_3(kcras16, tl, env, tl, tl) > +DEF_HELPER_3(ukcras16, tl, env, tl, tl) > +DEF_HELPER_3(crsa16, tl, env, tl, tl) > +DEF_HELPER_3(rcrsa16, tl, env, tl, tl) > +DEF_HELPER_3(urcrsa16, tl, env, tl, tl) > +DEF_HELPER_3(kcrsa16, tl, env, tl, tl) > +DEF_HELPER_3(ukcrsa16, tl, env, tl, tl) > +DEF_HELPER_3(stas16, tl, env, tl, tl) > +DEF_HELPER_3(rstas16, tl, env, tl, tl) > +DEF_HELPER_3(urstas16, tl, env, tl, tl) > +DEF_HELPER_3(kstas16, tl, env, tl, tl) > +DEF_HELPER_3(ukstas16, tl, env, tl, tl) > +DEF_HELPER_3(stsa16, tl, env, tl, tl) > +DEF_HELPER_3(rstsa16, tl, env, tl, tl) > +DEF_HELPER_3(urstsa16, tl, env, tl, tl) > +DEF_HELPER_3(kstsa16, tl, env, tl, tl) > +DEF_HELPER_3(ukstsa16, tl, env, tl, tl) > diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode > index f09f8d5faf..57f72fabf6 100644 > --- a/target/riscv/insn32.decode > +++ b/target/riscv/insn32.decode > @@ -732,3 +732,35 @@ greviw 0110100 .......... 101 ..... 0011011 @sh5 > gorciw 0010100 .......... 101 ..... 0011011 @sh5 > > slli_uw 00001. ........... 001 ..... 0011011 @sh > + > +# *** RV32P Extension *** > +add16 0100000 ..... ..... 000 ..... 1110111 @r > +radd16 0000000 ..... ..... 000 ..... 1110111 @r > +uradd16 0010000 ..... ..... 000 ..... 1110111 @r > +kadd16 0001000 ..... ..... 000 ..... 1110111 @r > +ukadd16 0011000 ..... ..... 000 ..... 1110111 @r > +sub16 0100001 ..... ..... 000 ..... 1110111 @r > +rsub16 0000001 ..... ..... 000 ..... 1110111 @r > +ursub16 0010001 ..... ..... 000 ..... 1110111 @r > +ksub16 0001001 ..... ..... 000 ..... 1110111 @r > +uksub16 0011001 ..... ..... 000 ..... 1110111 @r > +cras16 0100010 ..... ..... 000 ..... 1110111 @r > +rcras16 0000010 ..... ..... 000 ..... 1110111 @r > +urcras16 0010010 ..... ..... 000 ..... 1110111 @r > +kcras16 0001010 ..... ..... 000 ..... 1110111 @r > +ukcras16 0011010 ..... ..... 000 ..... 1110111 @r > +crsa16 0100011 ..... ..... 000 ..... 1110111 @r > +rcrsa16 0000011 ..... ..... 000 ..... 1110111 @r > +urcrsa16 0010011 ..... ..... 000 ..... 1110111 @r > +kcrsa16 0001011 ..... ..... 000 ..... 1110111 @r > +ukcrsa16 0011011 ..... ..... 000 ..... 1110111 @r > +stas16 1111010 ..... ..... 010 ..... 1110111 @r > +rstas16 1011010 ..... ..... 010 ..... 1110111 @r > +urstas16 1101010 ..... ..... 010 ..... 1110111 @r > +kstas16 1100010 ..... ..... 010 ..... 1110111 @r > +ukstas16 1110010 ..... ..... 010 ..... 1110111 @r > +stsa16 1111011 ..... ..... 010 ..... 1110111 @r > +rstsa16 1011011 ..... ..... 010 ..... 1110111 @r > +urstsa16 1101011 ..... ..... 010 ..... 1110111 @r > +kstsa16 1100011 ..... ..... 010 ..... 1110111 @r > +ukstsa16 1110011 ..... ..... 010 ..... 1110111 @r > diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_trans/trans_rvp.c.inc > new file mode 100644 > index 0000000000..43f395657a > --- /dev/null > +++ b/target/riscv/insn_trans/trans_rvp.c.inc > @@ -0,0 +1,117 @@ > +/* > + * RISC-V translation routines for the RVP Standard Extension. > + * > + * Copyright (c) 2021 T-Head Semiconductor Co., Ltd. All rights reserved. > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2 or later, as published by the Free Software Foundation. > + * > + * This program is distributed in the hope it will be useful, but WITHOUT > + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or > + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for > + * more details. > + * > + * You should have received a copy of the GNU General Public License along with > + * this program. If not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include "tcg/tcg-op-gvec.h" > +#include "tcg/tcg-gvec-desc.h" > +#include "tcg/tcg.h" > + > +/* > + *** SIMD Data Processing Instructions > + */ > + > +/* 16-bit Addition & Subtraction Instructions */ > + > +/* > + * For some instructions, such as add16, an oberservation can be utilized: > + * 1) If any reg is zero, it can be reduced to an inline op on the whole reg. > + * 2) Otherwise, it can be acclebrated by an vec op. > + */ > +static inline bool > +r_inline(DisasContext *ctx, arg_r *a, > + void (* vecop)(TCGv, TCGv, TCGv), > + void (* op)(TCGv, TCGv, TCGv)) > +{ > + if (!has_ext(ctx, RVP)) { > + return false; > + } > + if (a->rd && a->rs1 && a->rs2) { > + vecop(cpu_gpr[a->rd], cpu_gpr[a->rs1], cpu_gpr[a->rs2]); > + } else { > + gen_arith(ctx, a, op); > + } > + return true; > +} > + > +/* Complete inline implementation */ > +#define GEN_RVP_R_INLINE(NAME, VECOP, OP) \ > +static bool trans_##NAME(DisasContext *s, arg_r *a) \ > +{ \ > + return r_inline(s, a, VECOP, OP); \ > +} > + > +GEN_RVP_R_INLINE(add16, tcg_gen_vec_add16_tl, tcg_gen_add_tl); > +GEN_RVP_R_INLINE(sub16, tcg_gen_vec_sub16_tl, tcg_gen_sub_tl); > + > +/* Out of line helpers for R format packed instructions */ > +static inline bool > +r_ool(DisasContext *ctx, arg_r *a, void (* fn)(TCGv, TCGv_ptr, TCGv, TCGv)) > +{ > + TCGv src1, src2, dst; > + if (!has_ext(ctx, RVP)) { > + return false; > + } > + > + src1 = tcg_temp_new(); > + src2 = tcg_temp_new(); > + dst = tcg_temp_new(); > + > + gen_get_gpr(src1, a->rs1); > + gen_get_gpr(src2, a->rs2); > + fn(dst, cpu_env, src1, src2); > + gen_set_gpr(a->rd, dst); > + > + tcg_temp_free(src1); > + tcg_temp_free(src2); > + tcg_temp_free(dst); > + return true; > +} > + > +#define GEN_RVP_R_OOL(NAME) \ > +static bool trans_##NAME(DisasContext *s, arg_r *a) \ > +{ \ > + return r_ool(s, a, gen_helper_##NAME); \ > +} > + > +GEN_RVP_R_OOL(radd16); > +GEN_RVP_R_OOL(uradd16); > +GEN_RVP_R_OOL(kadd16); > +GEN_RVP_R_OOL(ukadd16); > +GEN_RVP_R_OOL(rsub16); > +GEN_RVP_R_OOL(ursub16); > +GEN_RVP_R_OOL(ksub16); > +GEN_RVP_R_OOL(uksub16); > +GEN_RVP_R_OOL(cras16); > +GEN_RVP_R_OOL(rcras16); > +GEN_RVP_R_OOL(urcras16); > +GEN_RVP_R_OOL(kcras16); > +GEN_RVP_R_OOL(ukcras16); > +GEN_RVP_R_OOL(crsa16); > +GEN_RVP_R_OOL(rcrsa16); > +GEN_RVP_R_OOL(urcrsa16); > +GEN_RVP_R_OOL(kcrsa16); > +GEN_RVP_R_OOL(ukcrsa16); > +GEN_RVP_R_OOL(stas16); > +GEN_RVP_R_OOL(rstas16); > +GEN_RVP_R_OOL(urstas16); > +GEN_RVP_R_OOL(kstas16); > +GEN_RVP_R_OOL(ukstas16); > +GEN_RVP_R_OOL(stsa16); > +GEN_RVP_R_OOL(rstsa16); > +GEN_RVP_R_OOL(urstsa16); > +GEN_RVP_R_OOL(kstsa16); > +GEN_RVP_R_OOL(ukstsa16); > diff --git a/target/riscv/meson.build b/target/riscv/meson.build > index d5e0bc93ea..cc169e1b2c 100644 > --- a/target/riscv/meson.build > +++ b/target/riscv/meson.build > @@ -17,6 +17,7 @@ riscv_ss.add(files( > 'op_helper.c', > 'vector_helper.c', > 'bitmanip_helper.c', > + 'packed_helper.c', > 'translate.c', > )) > > diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c > new file mode 100644 > index 0000000000..b84abaaf25 > --- /dev/null > +++ b/target/riscv/packed_helper.c > @@ -0,0 +1,354 @@ > +/* > + * RISC-V P Extension Helpers for QEMU. > + * > + * Copyright (c) 2021 T-Head Semiconductor Co., Ltd. All rights reserved. > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2 or later, as published by the Free Software Foundation. > + * > + * This program is distributed in the hope it will be useful, but WITHOUT > + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or > + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for > + * more details. > + * > + * You should have received a copy of the GNU General Public License along with > + * this program. If not, see <http://www.gnu.org/licenses/>. > + */ > +#include "qemu/osdep.h" > +#include "cpu.h" > +#include "exec/exec-all.h" > +#include "exec/helper-proto.h" > +#include "exec/cpu_ldst.h" > +#include "fpu/softfloat.h" > +#include <math.h> > +#include "internals.h" > + > +/* > + *** SIMD Data Processing Instructions > + */ > + > +/* 16-bit Addition & Subtraction Instructions */ > +typedef void PackedFn3i(CPURISCVState *, void *, void *, void *, uint8_t); > + > +/* Define a common function to loop elements in packed register */ > +static inline target_ulong > +rvpr(CPURISCVState *env, target_ulong a, target_ulong b, > + uint8_t step, uint8_t size, PackedFn3i *fn) > +{ > + int i, passes = sizeof(target_ulong) / size; > + target_ulong result = 0; > + > + for (i = 0; i < passes; i += step) { > + fn(env, &result, &a, &b, i); > + } > + return result; > +} > + > +#define RVPR(NAME, STEP, SIZE) \ > +target_ulong HELPER(NAME)(CPURISCVState *env, target_ulong a, \ > + target_ulong b) \ > +{ \ > + return rvpr(env, a, b, STEP, SIZE, (PackedFn3i *)do_##NAME);\ > +} > + > +static inline int32_t hadd32(int32_t a, int32_t b) > +{ > + return ((int64_t)a + b) >> 1; > +} > + > +static inline void do_radd16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[i] = hadd32(a[i], b[i]); > +} > + > +RVPR(radd16, 1, 2); > + > +static inline uint32_t haddu32(uint32_t a, uint32_t b) > +{ > + return ((uint64_t)a + b) >> 1; > +} > + > +static inline void do_uradd16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[i] = haddu32(a[i], b[i]); > +} > + > +RVPR(uradd16, 1, 2); > + > +static inline void do_kadd16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[i] = sadd16(env, 0, a[i], b[i]); > +} > + > +RVPR(kadd16, 1, 2); > + > +static inline void do_ukadd16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[i] = saddu16(env, 0, a[i], b[i]); > +} > + > +RVPR(ukadd16, 1, 2); > + > +static inline int32_t hsub32(int32_t a, int32_t b) > +{ > + return ((int64_t)a - b) >> 1; > +} > + > +static inline int64_t hsub64(int64_t a, int64_t b) > +{ > + int64_t res = a - b; > + int64_t over = (res ^ a) & (a ^ b) & INT64_MIN; > + > + /* With signed overflow, bit 64 is inverse of bit 63. */ > + return (res >> 1) ^ over; > +} > + > +static inline void do_rsub16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[i] = hsub32(a[i], b[i]); > +} > + > +RVPR(rsub16, 1, 2); > + > +static inline uint64_t hsubu64(uint64_t a, uint64_t b) > +{ > + return (a - b) >> 1; > +} > + > +static inline void do_ursub16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[i] = hsubu64(a[i], b[i]); > +} > + > +RVPR(ursub16, 1, 2); > + > +static inline void do_ksub16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[i] = ssub16(env, 0, a[i], b[i]); > +} > + > +RVPR(ksub16, 1, 2); > + > +static inline void do_uksub16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[i] = ssubu16(env, 0, a[i], b[i]); > +} > + > +RVPR(uksub16, 1, 2); > + > +static inline void do_cras16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = a[H2(i)] - b[H2(i + 1)]; > + d[H2(i + 1)] = a[H2(i + 1)] + b[H2(i)]; > +} > + > +RVPR(cras16, 2, 2); > + > +static inline void do_rcras16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = hsub32(a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = hadd32(a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(rcras16, 2, 2); > + > +static inline void do_urcras16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = hsubu64(a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = haddu32(a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(urcras16, 2, 2); > + > +static inline void do_kcras16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = ssub16(env, 0, a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = sadd16(env, 0, a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(kcras16, 2, 2); > + > +static inline void do_ukcras16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = ssubu16(env, 0, a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = saddu16(env, 0, a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(ukcras16, 2, 2); > + > +static inline void do_crsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = a[H2(i)] + b[H2(i + 1)]; > + d[H2(i + 1)] = a[H2(i + 1)] - b[H2(i)]; > +} > + > +RVPR(crsa16, 2, 2); > + > +static inline void do_rcrsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = hadd32(a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = hsub32(a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(rcrsa16, 2, 2); > + > +static inline void do_urcrsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = haddu32(a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = hsubu64(a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(urcrsa16, 2, 2); > + > +static inline void do_kcrsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = sadd16(env, 0, a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = ssub16(env, 0, a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(kcrsa16, 2, 2); > + > +static inline void do_ukcrsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = saddu16(env, 0, a[H2(i)], b[H2(i + 1)]); > + d[H2(i + 1)] = ssubu16(env, 0, a[H2(i + 1)], b[H2(i)]); > +} > + > +RVPR(ukcrsa16, 2, 2); > + > +static inline void do_stas16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = a[H2(i)] - b[H2(i)]; > + d[H2(i + 1)] = a[H2(i + 1)] + b[H2(i + 1)]; > +} > + > +RVPR(stas16, 2, 2); > + > +static inline void do_rstas16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = hsub32(a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = hadd32(a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(rstas16, 2, 2); > + > +static inline void do_urstas16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = hsubu64(a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = haddu32(a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(urstas16, 2, 2); > + > +static inline void do_kstas16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = ssub16(env, 0, a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = sadd16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(kstas16, 2, 2); > + > +static inline void do_ukstas16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = ssubu16(env, 0, a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = saddu16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(ukstas16, 2, 2); > + > +static inline void do_stsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = a[H2(i)] + b[H2(i)]; > + d[H2(i + 1)] = a[H2(i + 1)] - b[H2(i + 1)]; > +} > + > +RVPR(stsa16, 2, 2); > + > +static inline void do_rstsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = hadd32(a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = hsub32(a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(rstsa16, 2, 2); > + > +static inline void do_urstsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = haddu32(a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = hsubu64(a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(urstsa16, 2, 2); > + > +static inline void do_kstsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + int16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = sadd16(env, 0, a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = ssub16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(kstsa16, 2, 2); > + > +static inline void do_ukstsa16(CPURISCVState *env, void *vd, void *va, > + void *vb, uint8_t i) > +{ > + uint16_t *d = vd, *a = va, *b = vb; > + d[H2(i)] = saddu16(env, 0, a[H2(i)], b[H2(i)]); > + d[H2(i + 1)] = ssubu16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); > +} > + > +RVPR(ukstsa16, 2, 2); > diff --git a/target/riscv/translate.c b/target/riscv/translate.c > index 0e6ede4d71..51b144e9be 100644 > --- a/target/riscv/translate.c > +++ b/target/riscv/translate.c > @@ -908,6 +908,7 @@ static bool gen_unary(DisasContext *ctx, arg_r2 *a, > #include "insn_trans/trans_rvh.c.inc" > #include "insn_trans/trans_rvv.c.inc" > #include "insn_trans/trans_rvb.c.inc" > +#include "insn_trans/trans_rvp.c.inc" > #include "insn_trans/trans_privileged.c.inc" > > /* Include the auto-generated decoder for 16 bit insn */ > -- > 2.17.1 > >
diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 415e37bc37..b6a71ade33 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1149,3 +1149,33 @@ DEF_HELPER_6(vcompress_vm_b, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vcompress_vm_h, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vcompress_vm_w, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vcompress_vm_d, void, ptr, ptr, ptr, ptr, env, i32) + +/* P extension function */ +DEF_HELPER_3(radd16, tl, env, tl, tl) +DEF_HELPER_3(uradd16, tl, env, tl, tl) +DEF_HELPER_3(kadd16, tl, env, tl, tl) +DEF_HELPER_3(ukadd16, tl, env, tl, tl) +DEF_HELPER_3(rsub16, tl, env, tl, tl) +DEF_HELPER_3(ursub16, tl, env, tl, tl) +DEF_HELPER_3(ksub16, tl, env, tl, tl) +DEF_HELPER_3(uksub16, tl, env, tl, tl) +DEF_HELPER_3(cras16, tl, env, tl, tl) +DEF_HELPER_3(rcras16, tl, env, tl, tl) +DEF_HELPER_3(urcras16, tl, env, tl, tl) +DEF_HELPER_3(kcras16, tl, env, tl, tl) +DEF_HELPER_3(ukcras16, tl, env, tl, tl) +DEF_HELPER_3(crsa16, tl, env, tl, tl) +DEF_HELPER_3(rcrsa16, tl, env, tl, tl) +DEF_HELPER_3(urcrsa16, tl, env, tl, tl) +DEF_HELPER_3(kcrsa16, tl, env, tl, tl) +DEF_HELPER_3(ukcrsa16, tl, env, tl, tl) +DEF_HELPER_3(stas16, tl, env, tl, tl) +DEF_HELPER_3(rstas16, tl, env, tl, tl) +DEF_HELPER_3(urstas16, tl, env, tl, tl) +DEF_HELPER_3(kstas16, tl, env, tl, tl) +DEF_HELPER_3(ukstas16, tl, env, tl, tl) +DEF_HELPER_3(stsa16, tl, env, tl, tl) +DEF_HELPER_3(rstsa16, tl, env, tl, tl) +DEF_HELPER_3(urstsa16, tl, env, tl, tl) +DEF_HELPER_3(kstsa16, tl, env, tl, tl) +DEF_HELPER_3(ukstsa16, tl, env, tl, tl) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index f09f8d5faf..57f72fabf6 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -732,3 +732,35 @@ greviw 0110100 .......... 101 ..... 0011011 @sh5 gorciw 0010100 .......... 101 ..... 0011011 @sh5 slli_uw 00001. ........... 001 ..... 0011011 @sh + +# *** RV32P Extension *** +add16 0100000 ..... ..... 000 ..... 1110111 @r +radd16 0000000 ..... ..... 000 ..... 1110111 @r +uradd16 0010000 ..... ..... 000 ..... 1110111 @r +kadd16 0001000 ..... ..... 000 ..... 1110111 @r +ukadd16 0011000 ..... ..... 000 ..... 1110111 @r +sub16 0100001 ..... ..... 000 ..... 1110111 @r +rsub16 0000001 ..... ..... 000 ..... 1110111 @r +ursub16 0010001 ..... ..... 000 ..... 1110111 @r +ksub16 0001001 ..... ..... 000 ..... 1110111 @r +uksub16 0011001 ..... ..... 000 ..... 1110111 @r +cras16 0100010 ..... ..... 000 ..... 1110111 @r +rcras16 0000010 ..... ..... 000 ..... 1110111 @r +urcras16 0010010 ..... ..... 000 ..... 1110111 @r +kcras16 0001010 ..... ..... 000 ..... 1110111 @r +ukcras16 0011010 ..... ..... 000 ..... 1110111 @r +crsa16 0100011 ..... ..... 000 ..... 1110111 @r +rcrsa16 0000011 ..... ..... 000 ..... 1110111 @r +urcrsa16 0010011 ..... ..... 000 ..... 1110111 @r +kcrsa16 0001011 ..... ..... 000 ..... 1110111 @r +ukcrsa16 0011011 ..... ..... 000 ..... 1110111 @r +stas16 1111010 ..... ..... 010 ..... 1110111 @r +rstas16 1011010 ..... ..... 010 ..... 1110111 @r +urstas16 1101010 ..... ..... 010 ..... 1110111 @r +kstas16 1100010 ..... ..... 010 ..... 1110111 @r +ukstas16 1110010 ..... ..... 010 ..... 1110111 @r +stsa16 1111011 ..... ..... 010 ..... 1110111 @r +rstsa16 1011011 ..... ..... 010 ..... 1110111 @r +urstsa16 1101011 ..... ..... 010 ..... 1110111 @r +kstsa16 1100011 ..... ..... 010 ..... 1110111 @r +ukstsa16 1110011 ..... ..... 010 ..... 1110111 @r diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_trans/trans_rvp.c.inc new file mode 100644 index 0000000000..43f395657a --- /dev/null +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -0,0 +1,117 @@ +/* + * RISC-V translation routines for the RVP Standard Extension. + * + * Copyright (c) 2021 T-Head Semiconductor Co., Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "tcg/tcg-op-gvec.h" +#include "tcg/tcg-gvec-desc.h" +#include "tcg/tcg.h" + +/* + *** SIMD Data Processing Instructions + */ + +/* 16-bit Addition & Subtraction Instructions */ + +/* + * For some instructions, such as add16, an oberservation can be utilized: + * 1) If any reg is zero, it can be reduced to an inline op on the whole reg. + * 2) Otherwise, it can be acclebrated by an vec op. + */ +static inline bool +r_inline(DisasContext *ctx, arg_r *a, + void (* vecop)(TCGv, TCGv, TCGv), + void (* op)(TCGv, TCGv, TCGv)) +{ + if (!has_ext(ctx, RVP)) { + return false; + } + if (a->rd && a->rs1 && a->rs2) { + vecop(cpu_gpr[a->rd], cpu_gpr[a->rs1], cpu_gpr[a->rs2]); + } else { + gen_arith(ctx, a, op); + } + return true; +} + +/* Complete inline implementation */ +#define GEN_RVP_R_INLINE(NAME, VECOP, OP) \ +static bool trans_##NAME(DisasContext *s, arg_r *a) \ +{ \ + return r_inline(s, a, VECOP, OP); \ +} + +GEN_RVP_R_INLINE(add16, tcg_gen_vec_add16_tl, tcg_gen_add_tl); +GEN_RVP_R_INLINE(sub16, tcg_gen_vec_sub16_tl, tcg_gen_sub_tl); + +/* Out of line helpers for R format packed instructions */ +static inline bool +r_ool(DisasContext *ctx, arg_r *a, void (* fn)(TCGv, TCGv_ptr, TCGv, TCGv)) +{ + TCGv src1, src2, dst; + if (!has_ext(ctx, RVP)) { + return false; + } + + src1 = tcg_temp_new(); + src2 = tcg_temp_new(); + dst = tcg_temp_new(); + + gen_get_gpr(src1, a->rs1); + gen_get_gpr(src2, a->rs2); + fn(dst, cpu_env, src1, src2); + gen_set_gpr(a->rd, dst); + + tcg_temp_free(src1); + tcg_temp_free(src2); + tcg_temp_free(dst); + return true; +} + +#define GEN_RVP_R_OOL(NAME) \ +static bool trans_##NAME(DisasContext *s, arg_r *a) \ +{ \ + return r_ool(s, a, gen_helper_##NAME); \ +} + +GEN_RVP_R_OOL(radd16); +GEN_RVP_R_OOL(uradd16); +GEN_RVP_R_OOL(kadd16); +GEN_RVP_R_OOL(ukadd16); +GEN_RVP_R_OOL(rsub16); +GEN_RVP_R_OOL(ursub16); +GEN_RVP_R_OOL(ksub16); +GEN_RVP_R_OOL(uksub16); +GEN_RVP_R_OOL(cras16); +GEN_RVP_R_OOL(rcras16); +GEN_RVP_R_OOL(urcras16); +GEN_RVP_R_OOL(kcras16); +GEN_RVP_R_OOL(ukcras16); +GEN_RVP_R_OOL(crsa16); +GEN_RVP_R_OOL(rcrsa16); +GEN_RVP_R_OOL(urcrsa16); +GEN_RVP_R_OOL(kcrsa16); +GEN_RVP_R_OOL(ukcrsa16); +GEN_RVP_R_OOL(stas16); +GEN_RVP_R_OOL(rstas16); +GEN_RVP_R_OOL(urstas16); +GEN_RVP_R_OOL(kstas16); +GEN_RVP_R_OOL(ukstas16); +GEN_RVP_R_OOL(stsa16); +GEN_RVP_R_OOL(rstsa16); +GEN_RVP_R_OOL(urstsa16); +GEN_RVP_R_OOL(kstsa16); +GEN_RVP_R_OOL(ukstsa16); diff --git a/target/riscv/meson.build b/target/riscv/meson.build index d5e0bc93ea..cc169e1b2c 100644 --- a/target/riscv/meson.build +++ b/target/riscv/meson.build @@ -17,6 +17,7 @@ riscv_ss.add(files( 'op_helper.c', 'vector_helper.c', 'bitmanip_helper.c', + 'packed_helper.c', 'translate.c', )) diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c new file mode 100644 index 0000000000..b84abaaf25 --- /dev/null +++ b/target/riscv/packed_helper.c @@ -0,0 +1,354 @@ +/* + * RISC-V P Extension Helpers for QEMU. + * + * Copyright (c) 2021 T-Head Semiconductor Co., Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include "qemu/osdep.h" +#include "cpu.h" +#include "exec/exec-all.h" +#include "exec/helper-proto.h" +#include "exec/cpu_ldst.h" +#include "fpu/softfloat.h" +#include <math.h> +#include "internals.h" + +/* + *** SIMD Data Processing Instructions + */ + +/* 16-bit Addition & Subtraction Instructions */ +typedef void PackedFn3i(CPURISCVState *, void *, void *, void *, uint8_t); + +/* Define a common function to loop elements in packed register */ +static inline target_ulong +rvpr(CPURISCVState *env, target_ulong a, target_ulong b, + uint8_t step, uint8_t size, PackedFn3i *fn) +{ + int i, passes = sizeof(target_ulong) / size; + target_ulong result = 0; + + for (i = 0; i < passes; i += step) { + fn(env, &result, &a, &b, i); + } + return result; +} + +#define RVPR(NAME, STEP, SIZE) \ +target_ulong HELPER(NAME)(CPURISCVState *env, target_ulong a, \ + target_ulong b) \ +{ \ + return rvpr(env, a, b, STEP, SIZE, (PackedFn3i *)do_##NAME);\ +} + +static inline int32_t hadd32(int32_t a, int32_t b) +{ + return ((int64_t)a + b) >> 1; +} + +static inline void do_radd16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[i] = hadd32(a[i], b[i]); +} + +RVPR(radd16, 1, 2); + +static inline uint32_t haddu32(uint32_t a, uint32_t b) +{ + return ((uint64_t)a + b) >> 1; +} + +static inline void do_uradd16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[i] = haddu32(a[i], b[i]); +} + +RVPR(uradd16, 1, 2); + +static inline void do_kadd16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[i] = sadd16(env, 0, a[i], b[i]); +} + +RVPR(kadd16, 1, 2); + +static inline void do_ukadd16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[i] = saddu16(env, 0, a[i], b[i]); +} + +RVPR(ukadd16, 1, 2); + +static inline int32_t hsub32(int32_t a, int32_t b) +{ + return ((int64_t)a - b) >> 1; +} + +static inline int64_t hsub64(int64_t a, int64_t b) +{ + int64_t res = a - b; + int64_t over = (res ^ a) & (a ^ b) & INT64_MIN; + + /* With signed overflow, bit 64 is inverse of bit 63. */ + return (res >> 1) ^ over; +} + +static inline void do_rsub16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[i] = hsub32(a[i], b[i]); +} + +RVPR(rsub16, 1, 2); + +static inline uint64_t hsubu64(uint64_t a, uint64_t b) +{ + return (a - b) >> 1; +} + +static inline void do_ursub16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[i] = hsubu64(a[i], b[i]); +} + +RVPR(ursub16, 1, 2); + +static inline void do_ksub16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[i] = ssub16(env, 0, a[i], b[i]); +} + +RVPR(ksub16, 1, 2); + +static inline void do_uksub16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[i] = ssubu16(env, 0, a[i], b[i]); +} + +RVPR(uksub16, 1, 2); + +static inline void do_cras16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = a[H2(i)] - b[H2(i + 1)]; + d[H2(i + 1)] = a[H2(i + 1)] + b[H2(i)]; +} + +RVPR(cras16, 2, 2); + +static inline void do_rcras16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = hsub32(a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = hadd32(a[H2(i + 1)], b[H2(i)]); +} + +RVPR(rcras16, 2, 2); + +static inline void do_urcras16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = hsubu64(a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = haddu32(a[H2(i + 1)], b[H2(i)]); +} + +RVPR(urcras16, 2, 2); + +static inline void do_kcras16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = ssub16(env, 0, a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = sadd16(env, 0, a[H2(i + 1)], b[H2(i)]); +} + +RVPR(kcras16, 2, 2); + +static inline void do_ukcras16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = ssubu16(env, 0, a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = saddu16(env, 0, a[H2(i + 1)], b[H2(i)]); +} + +RVPR(ukcras16, 2, 2); + +static inline void do_crsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = a[H2(i)] + b[H2(i + 1)]; + d[H2(i + 1)] = a[H2(i + 1)] - b[H2(i)]; +} + +RVPR(crsa16, 2, 2); + +static inline void do_rcrsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = hadd32(a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = hsub32(a[H2(i + 1)], b[H2(i)]); +} + +RVPR(rcrsa16, 2, 2); + +static inline void do_urcrsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = haddu32(a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = hsubu64(a[H2(i + 1)], b[H2(i)]); +} + +RVPR(urcrsa16, 2, 2); + +static inline void do_kcrsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = sadd16(env, 0, a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = ssub16(env, 0, a[H2(i + 1)], b[H2(i)]); +} + +RVPR(kcrsa16, 2, 2); + +static inline void do_ukcrsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = saddu16(env, 0, a[H2(i)], b[H2(i + 1)]); + d[H2(i + 1)] = ssubu16(env, 0, a[H2(i + 1)], b[H2(i)]); +} + +RVPR(ukcrsa16, 2, 2); + +static inline void do_stas16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = a[H2(i)] - b[H2(i)]; + d[H2(i + 1)] = a[H2(i + 1)] + b[H2(i + 1)]; +} + +RVPR(stas16, 2, 2); + +static inline void do_rstas16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = hsub32(a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = hadd32(a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(rstas16, 2, 2); + +static inline void do_urstas16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = hsubu64(a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = haddu32(a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(urstas16, 2, 2); + +static inline void do_kstas16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = ssub16(env, 0, a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = sadd16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(kstas16, 2, 2); + +static inline void do_ukstas16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = ssubu16(env, 0, a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = saddu16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(ukstas16, 2, 2); + +static inline void do_stsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = a[H2(i)] + b[H2(i)]; + d[H2(i + 1)] = a[H2(i + 1)] - b[H2(i + 1)]; +} + +RVPR(stsa16, 2, 2); + +static inline void do_rstsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = hadd32(a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = hsub32(a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(rstsa16, 2, 2); + +static inline void do_urstsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = haddu32(a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = hsubu64(a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(urstsa16, 2, 2); + +static inline void do_kstsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = sadd16(env, 0, a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = ssub16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(kstsa16, 2, 2); + +static inline void do_ukstsa16(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint16_t *d = vd, *a = va, *b = vb; + d[H2(i)] = saddu16(env, 0, a[H2(i)], b[H2(i)]); + d[H2(i + 1)] = ssubu16(env, 0, a[H2(i + 1)], b[H2(i + 1)]); +} + +RVPR(ukstsa16, 2, 2); diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 0e6ede4d71..51b144e9be 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -908,6 +908,7 @@ static bool gen_unary(DisasContext *ctx, arg_r2 *a, #include "insn_trans/trans_rvh.c.inc" #include "insn_trans/trans_rvv.c.inc" #include "insn_trans/trans_rvb.c.inc" +#include "insn_trans/trans_rvp.c.inc" #include "insn_trans/trans_privileged.c.inc" /* Include the auto-generated decoder for 16 bit insn */
Include 5 groups: Wrap-around (dropping overflow), Signed Halving, Unsigned Halving, Signed Saturation, and Unsigned Saturation. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> --- target/riscv/helper.h | 30 ++ target/riscv/insn32.decode | 32 +++ target/riscv/insn_trans/trans_rvp.c.inc | 117 ++++++++ target/riscv/meson.build | 1 + target/riscv/packed_helper.c | 354 ++++++++++++++++++++++++ target/riscv/translate.c | 1 + 6 files changed, 535 insertions(+) create mode 100644 target/riscv/insn_trans/trans_rvp.c.inc create mode 100644 target/riscv/packed_helper.c