From: frank.chang@sifive.com
To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>,
Frank Chang <frank.chang@sifive.com>,
Bastian Koppelmann <kbastian@mail.uni-paderborn.de>,
Richard Henderson <richard.henderson@linaro.org>,
Alistair Francis <Alistair.Francis@wdc.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
LIU Zhiwei <zhiwei_liu@c-sky.com>
Subject: [PATCH v7 31/75] target/riscv: rvv-1.0: iota instruction
Date: Fri, 26 Feb 2021 11:18:15 +0800 [thread overview]
Message-ID: <20210226031902.23656-32-frank.chang@sifive.com> (raw)
In-Reply-To: <20210226031902.23656-1-frank.chang@sifive.com>
From: Frank Chang <frank.chang@sifive.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/riscv/insn32.decode | 2 +-
target/riscv/insn_trans/trans_rvv.c.inc | 10 ++++++++--
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 6b3caef1721..fae5ea3fa63 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -607,7 +607,7 @@ vfirst_m 010000 . ..... 10001 010 ..... 1010111 @r2_vm
vmsbf_m 010100 . ..... 00001 010 ..... 1010111 @r2_vm
vmsif_m 010100 . ..... 00011 010 ..... 1010111 @r2_vm
vmsof_m 010100 . ..... 00010 010 ..... 1010111 @r2_vm
-viota_m 010110 . ..... 10000 010 ..... 1010111 @r2_vm
+viota_m 010100 . ..... 10000 010 ..... 1010111 @r2_vm
vid_v 010110 . 00000 10001 010 ..... 1010111 @r1_vm
vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r
vmv_s_x 001101 1 00000 ..... 110 ..... 1010111 @r2
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index 5b229d55307..6e45186b9b4 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -2989,12 +2989,18 @@ GEN_M_TRANS(vmsbf_m)
GEN_M_TRANS(vmsif_m)
GEN_M_TRANS(vmsof_m)
-/* Vector Iota Instruction */
+/*
+ * Vector Iota Instruction
+ *
+ * 1. The destination register cannot overlap the source register.
+ * 2. If masked, cannot overlap the mask register ('v0').
+ * 3. An illegal instruction exception is raised if vstart is non-zero.
+ */
static bool trans_viota_m(DisasContext *s, arg_viota_m *a)
{
if (require_rvv(s) &&
vext_check_isa_ill(s) &&
- require_noover(a->rd, s->lmul, a->rs2, 0) &&
+ !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs2, 1) &&
require_vm(a->vm, a->rd) &&
require_align(a->rd, s->lmul)) {
uint32_t data = 0;
--
2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: frank.chang@sifive.com
To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org
Cc: Frank Chang <frank.chang@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Alistair Francis <Alistair.Francis@wdc.com>,
Sagar Karandikar <sagark@eecs.berkeley.edu>,
Bastian Koppelmann <kbastian@mail.uni-paderborn.de>,
Richard Henderson <richard.henderson@linaro.org>,
LIU Zhiwei <zhiwei_liu@c-sky.com>
Subject: [PATCH v7 31/75] target/riscv: rvv-1.0: iota instruction
Date: Fri, 26 Feb 2021 11:18:15 +0800 [thread overview]
Message-ID: <20210226031902.23656-32-frank.chang@sifive.com> (raw)
In-Reply-To: <20210226031902.23656-1-frank.chang@sifive.com>
From: Frank Chang <frank.chang@sifive.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/riscv/insn32.decode | 2 +-
target/riscv/insn_trans/trans_rvv.c.inc | 10 ++++++++--
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 6b3caef1721..fae5ea3fa63 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -607,7 +607,7 @@ vfirst_m 010000 . ..... 10001 010 ..... 1010111 @r2_vm
vmsbf_m 010100 . ..... 00001 010 ..... 1010111 @r2_vm
vmsif_m 010100 . ..... 00011 010 ..... 1010111 @r2_vm
vmsof_m 010100 . ..... 00010 010 ..... 1010111 @r2_vm
-viota_m 010110 . ..... 10000 010 ..... 1010111 @r2_vm
+viota_m 010100 . ..... 10000 010 ..... 1010111 @r2_vm
vid_v 010110 . 00000 10001 010 ..... 1010111 @r1_vm
vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r
vmv_s_x 001101 1 00000 ..... 110 ..... 1010111 @r2
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index 5b229d55307..6e45186b9b4 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -2989,12 +2989,18 @@ GEN_M_TRANS(vmsbf_m)
GEN_M_TRANS(vmsif_m)
GEN_M_TRANS(vmsof_m)
-/* Vector Iota Instruction */
+/*
+ * Vector Iota Instruction
+ *
+ * 1. The destination register cannot overlap the source register.
+ * 2. If masked, cannot overlap the mask register ('v0').
+ * 3. An illegal instruction exception is raised if vstart is non-zero.
+ */
static bool trans_viota_m(DisasContext *s, arg_viota_m *a)
{
if (require_rvv(s) &&
vext_check_isa_ill(s) &&
- require_noover(a->rd, s->lmul, a->rs2, 0) &&
+ !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs2, 1) &&
require_vm(a->vm, a->rd) &&
require_align(a->rd, s->lmul)) {
uint32_t data = 0;
--
2.17.1
next prev parent reply other threads:[~2021-02-26 3:45 UTC|newest]
Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-26 3:17 [PATCH v7 00/75] support vector extension v1.0 frank.chang
2021-02-26 3:17 ` [PATCH v7 01/75] target/riscv: drop vector 0.7.1 and add 1.0 support frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 02/75] target/riscv: Use FIELD_EX32() to extract wd field frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 03/75] target/riscv: rvv-1.0: add mstatus VS field frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 04/75] target/riscv: rvv-1.0: add sstatus " frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 05/75] target/riscv: rvv-1.0: introduce writable misa.v field frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 06/75] target/riscv: rvv-1.0: add translation-time vector context status frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 07/75] target/riscv: rvv-1.0: remove rvv related codes from fcsr registers frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 08/75] target/riscv: rvv-1.0: add vcsr register frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 09/75] target/riscv: rvv-1.0: add vlenb register frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 10/75] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 11/75] target/riscv: rvv-1.0: remove MLEN calculations frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 12/75] target/riscv: rvv-1.0: add fractional LMUL frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 13/75] target/riscv: rvv-1.0: add VMA and VTA frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 14/75] target/riscv: rvv-1.0: update check functions frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:17 ` [PATCH v7 15/75] target/riscv: introduce more imm value modes in translator functions frank.chang
2021-02-26 3:17 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 16/75] target/riscv: rvv:1.0: add translation-time nan-box helper function frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 17/75] target/riscv: rvv-1.0: configure instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 18/75] target/riscv: rvv-1.0: stride load and store instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 19/75] target/riscv: rvv-1.0: index " frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 20/75] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 21/75] target/riscv: rvv-1.0: fault-only-first unit stride load frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 22/75] target/riscv: rvv-1.0: amo operations frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 23/75] target/riscv: rvv-1.0: load/store whole register instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 24/75] target/riscv: rvv-1.0: update vext_max_elems() for load/store insns frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 25/75] target/riscv: rvv-1.0: take fractional LMUL into vector max elements calculation frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 26/75] target/riscv: rvv-1.0: floating-point square-root instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 27/75] target/riscv: rvv-1.0: floating-point classify instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 28/75] target/riscv: rvv-1.0: mask population count instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 29/75] target/riscv: rvv-1.0: find-first-set mask bit instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 30/75] target/riscv: rvv-1.0: set-X-first mask bit instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` frank.chang [this message]
2021-02-26 3:18 ` [PATCH v7 31/75] target/riscv: rvv-1.0: iota instruction frank.chang
2021-02-26 3:18 ` [PATCH v7 32/75] target/riscv: rvv-1.0: element index instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 33/75] target/riscv: rvv-1.0: allow load element with sign-extended frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 34/75] target/riscv: rvv-1.0: register gather instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 35/75] target/riscv: rvv-1.0: integer scalar move instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 36/75] target/riscv: rvv-1.0: floating-point move instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 37/75] target/riscv: rvv-1.0: floating-point scalar move instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 38/75] target/riscv: rvv-1.0: whole register " frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 39/75] target/riscv: rvv-1.0: integer extension instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 40/75] target/riscv: rvv-1.0: single-width averaging add and subtract instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 41/75] target/riscv: rvv-1.0: single-width bit shift instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 42/75] target/riscv: rvv-1.0: integer add-with-carry/subtract-with-borrow frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 43/75] target/riscv: rvv-1.0: narrowing integer right shift instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 44/75] target/riscv: rvv-1.0: widening integer multiply-add instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 45/75] target/riscv: rvv-1.0: single-width saturating add and subtract instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 46/75] target/riscv: rvv-1.0: integer comparison instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 47/75] target/riscv: rvv-1.0: floating-point compare instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 48/75] target/riscv: rvv-1.0: mask-register logical instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 49/75] target/riscv: rvv-1.0: slide instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 50/75] target/riscv: rvv-1.0: floating-point " frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 51/75] target/riscv: rvv-1.0: narrowing fixed-point clip instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 52/75] target/riscv: rvv-1.0: single-width floating-point reduction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 53/75] target/riscv: rvv-1.0: widening floating-point reduction instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 54/75] target/riscv: rvv-1.0: single-width scaling shift instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 55/75] target/riscv: rvv-1.0: remove widening saturating scaled multiply-add frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 56/75] target/riscv: rvv-1.0: remove vmford.vv and vmford.vf frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 57/75] target/riscv: rvv-1.0: remove integer extract instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 58/75] target/riscv: rvv-1.0: floating-point min/max instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 59/75] target/riscv: introduce floating-point rounding mode enum frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 60/75] target/riscv: rvv-1.0: floating-point/integer type-convert instructions frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 61/75] target/riscv: rvv-1.0: widening floating-point/integer type-convert frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 62/75] target/riscv: add "set round to odd" rounding mode helper function frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 63/75] target/riscv: rvv-1.0: narrowing floating-point/integer type-convert frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 64/75] target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 65/75] target/riscv: rvv-1.0: implement vstart CSR frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 66/75] target/riscv: rvv-1.0: trigger illegal instruction exception if frm is not valid frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 67/75] target/riscv: rvv-1.0: set mstatus.SD bit when writing vector CSRs frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 68/75] target/riscv: gdb: support vector registers for rv64 & rv32 frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 69/75] target/riscv: rvv-1.0: floating-point reciprocal square-root estimate instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 70/75] target/riscv: rvv-1.0: floating-point reciprocal " frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 71/75] target/riscv: set mstatus.SD bit when writing fp CSRs frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 72/75] target/riscv: rvv-1.0: rename r2_zimm to r2_zimm11 frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 73/75] target/riscv: rvv-1.0: add vsetivli instruction frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 74/75] target/riscv: rvv-1.0: add evl parameter to vext_ldst_us() frank.chang
2021-02-26 3:18 ` frank.chang
2021-02-26 3:18 ` [PATCH v7 75/75] target/riscv: rvv-1.0: add vector unit-stride mask load/store insns frank.chang
2021-02-26 3:18 ` frank.chang
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