diff mbox series

[v3,27/60] target/riscv: vector single-width scaling shift instructions

Message ID 20200309082042.12967-28-zhiwei_liu@c-sky.com
State New
Headers show
Series target/riscv: support vector extension v0.7.1 | expand

Commit Message

LIU Zhiwei March 9, 2020, 8:20 a.m. UTC 
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
---
 target/riscv/helper.h                   |  17 ++++
 target/riscv/insn32.decode              |   6 ++
 target/riscv/insn_trans/trans_rvv.inc.c |   8 ++
 target/riscv/vector_helper.c            | 109 ++++++++++++++++++++++++
 4 files changed, 140 insertions(+)
diff mbox series

Patch

diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 74c1c695e0..efc84fbd79 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -755,3 +755,20 @@  DEF_HELPER_6(vwsmaccsu_vx_w, void, ptr, ptr, tl, ptr, env, i32)
 DEF_HELPER_6(vwsmaccus_vx_b, void, ptr, ptr, tl, ptr, env, i32)
 DEF_HELPER_6(vwsmaccus_vx_h, void, ptr, ptr, tl, ptr, env, i32)
 DEF_HELPER_6(vwsmaccus_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+
+DEF_HELPER_6(vssrl_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssrl_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssrl_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssrl_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssra_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssra_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssra_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssra_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vssrl_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssrl_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssrl_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssrl_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssra_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssra_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssra_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vssra_vx_d, void, ptr, ptr, tl, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 8798919d3e..d6d111e04a 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -426,6 +426,12 @@  vwsmacc_vx      111101 . ..... ..... 100 ..... 1010111 @r_vm
 vwsmaccsu_vv    111110 . ..... ..... 000 ..... 1010111 @r_vm
 vwsmaccsu_vx    111110 . ..... ..... 100 ..... 1010111 @r_vm
 vwsmaccus_vx    111111 . ..... ..... 100 ..... 1010111 @r_vm
+vssrl_vv        101010 . ..... ..... 000 ..... 1010111 @r_vm
+vssrl_vx        101010 . ..... ..... 100 ..... 1010111 @r_vm
+vssrl_vi        101010 . ..... ..... 011 ..... 1010111 @r_vm
+vssra_vv        101011 . ..... ..... 000 ..... 1010111 @r_vm
+vssra_vx        101011 . ..... ..... 100 ..... 1010111 @r_vm
+vssra_vi        101011 . ..... ..... 011 ..... 1010111 @r_vm
 
 vsetvli         0 ........... ..... 111 ..... 1010111  @r2_zimm
 vsetvl          1000000 ..... ..... 111 ..... 1010111  @r
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c
index 68bebd3c37..21f896ea26 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -1541,3 +1541,11 @@  GEN_OPIVX_WIDEN_TRANS(vwsmaccu_vx)
 GEN_OPIVX_WIDEN_TRANS(vwsmacc_vx)
 GEN_OPIVX_WIDEN_TRANS(vwsmaccsu_vx)
 GEN_OPIVX_WIDEN_TRANS(vwsmaccus_vx)
+
+/* Vector Single-Width Scaling Shift Instructions */
+GEN_OPIVV_TRANS(vssrl_vv, opivv_check)
+GEN_OPIVV_TRANS(vssra_vv, opivv_check)
+GEN_OPIVX_TRANS(vssrl_vx,  opivx_check)
+GEN_OPIVX_TRANS(vssra_vx,  opivx_check)
+GEN_OPIVI_TRANS(vssrl_vi, 1, vssrl_vx, opivx_check)
+GEN_OPIVI_TRANS(vssra_vi, 0, vssra_vx, opivx_check)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 90c19577fa..ec0f822fcf 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -2703,3 +2703,112 @@  RVVCALL(OPIVX3_ENV, vwsmaccus_vx_w, WOP_SUS_W, H8, H4, vwsmaccus32)
 GEN_VEXT_VX_ENV(vwsmaccus_vx_b, 1, 2, clearh)
 GEN_VEXT_VX_ENV(vwsmaccus_vx_h, 2, 4, clearl)
 GEN_VEXT_VX_ENV(vwsmaccus_vx_w, 4, 8, clearq)
+
+/* Vector Single-Width Scaling Shift Instructions */
+static uint8_t vssrl8(CPURISCVState *env, uint8_t a, uint8_t b)
+{
+    uint8_t round, shift = b & 0x7;
+    uint8_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+static uint16_t vssrl16(CPURISCVState *env, uint16_t a, uint16_t b)
+{
+    uint8_t round, shift = b & 0xf;
+    uint16_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+static uint32_t vssrl32(CPURISCVState *env, uint32_t a, uint32_t b)
+{
+    uint8_t round, shift = b & 0x1f;
+    uint32_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+static uint64_t vssrl64(CPURISCVState *env, uint64_t a, uint64_t b)
+{
+    uint8_t round, shift = b & 0x3f;
+    uint64_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+RVVCALL(OPIVV2_ENV, vssrl_vv_b, OP_UUU_B, H1, H1, H1, vssrl8)
+RVVCALL(OPIVV2_ENV, vssrl_vv_h, OP_UUU_H, H2, H2, H2, vssrl16)
+RVVCALL(OPIVV2_ENV, vssrl_vv_w, OP_UUU_W, H4, H4, H4, vssrl32)
+RVVCALL(OPIVV2_ENV, vssrl_vv_d, OP_UUU_D, H8, H8, H8, vssrl64)
+GEN_VEXT_VV_ENV(vssrl_vv_b, 1, 1, clearb)
+GEN_VEXT_VV_ENV(vssrl_vv_h, 2, 2, clearh)
+GEN_VEXT_VV_ENV(vssrl_vv_w, 4, 4, clearl)
+GEN_VEXT_VV_ENV(vssrl_vv_d, 8, 8, clearq)
+
+RVVCALL(OPIVX2_ENV, vssrl_vx_b, OP_UUU_B, H1, H1, vssrl8)
+RVVCALL(OPIVX2_ENV, vssrl_vx_h, OP_UUU_H, H2, H2, vssrl16)
+RVVCALL(OPIVX2_ENV, vssrl_vx_w, OP_UUU_W, H4, H4, vssrl32)
+RVVCALL(OPIVX2_ENV, vssrl_vx_d, OP_UUU_D, H8, H8, vssrl64)
+GEN_VEXT_VX_ENV(vssrl_vx_b, 1, 1, clearb)
+GEN_VEXT_VX_ENV(vssrl_vx_h, 2, 2, clearh)
+GEN_VEXT_VX_ENV(vssrl_vx_w, 4, 4, clearl)
+GEN_VEXT_VX_ENV(vssrl_vx_d, 8, 8, clearq)
+
+static int8_t vssra8(CPURISCVState *env, int8_t a, int8_t b)
+{
+    uint8_t round, shift = b & 0x7;
+    int8_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+static int16_t vssra16(CPURISCVState *env, int16_t a, int16_t b)
+{
+    uint8_t round, shift = b & 0xf;
+    int16_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+static int32_t vssra32(CPURISCVState *env, int32_t a, int32_t b)
+{
+    uint8_t round, shift = b & 0x1f;
+    int32_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+static int64_t vssra64(CPURISCVState *env, int64_t a, int64_t b)
+{
+    uint8_t round, shift = b & 0x3f;
+    int64_t res;
+
+    round = get_round(env, a, shift);
+    res   = (a >> shift)  + round;
+    return res;
+}
+RVVCALL(OPIVV2_ENV, vssra_vv_b, OP_SSS_B, H1, H1, H1, vssra8)
+RVVCALL(OPIVV2_ENV, vssra_vv_h, OP_SSS_H, H2, H2, H2, vssra16)
+RVVCALL(OPIVV2_ENV, vssra_vv_w, OP_SSS_W, H4, H4, H4, vssra32)
+RVVCALL(OPIVV2_ENV, vssra_vv_d, OP_SSS_D, H8, H8, H8, vssra64)
+GEN_VEXT_VV_ENV(vssra_vv_b, 1, 1, clearb)
+GEN_VEXT_VV_ENV(vssra_vv_h, 2, 2, clearh)
+GEN_VEXT_VV_ENV(vssra_vv_w, 4, 4, clearl)
+GEN_VEXT_VV_ENV(vssra_vv_d, 8, 8, clearq)
+
+RVVCALL(OPIVX2_ENV, vssra_vx_b, OP_SSS_B, H1, H1, vssra8)
+RVVCALL(OPIVX2_ENV, vssra_vx_h, OP_SSS_H, H2, H2, vssra16)
+RVVCALL(OPIVX2_ENV, vssra_vx_w, OP_SSS_W, H4, H4, vssra32)
+RVVCALL(OPIVX2_ENV, vssra_vx_d, OP_SSS_D, H8, H8, vssra64)
+GEN_VEXT_VX_ENV(vssra_vx_b, 1, 1, clearb)
+GEN_VEXT_VX_ENV(vssra_vx_h, 2, 2, clearh)
+GEN_VEXT_VX_ENV(vssra_vx_w, 4, 4, clearl)
+GEN_VEXT_VX_ENV(vssra_vx_d, 8, 8, clearq)