* [PATCH-for-6.2 1/5] target/mips: Extract NEC Vr54xx helpers to vr54xx_helper.c
2021-08-01 23:59 [PATCH-for-6.2 0/5] target/mips: Convert NEC Vr54xx to decodetree Philippe Mathieu-Daudé
@ 2021-08-01 23:59 ` Philippe Mathieu-Daudé
2021-08-01 23:59 ` [PATCH-for-6.2 2/5] target/mips: Introduce decodetree structure for NEC Vr54xx extension Philippe Mathieu-Daudé
` (3 subsequent siblings)
4 siblings, 0 replies; 11+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-08-01 23:59 UTC (permalink / raw)
To: qemu-devel
Cc: Aleksandar Rikalo, Richard Henderson, Aurelien Jarno,
Philippe Mathieu-Daudé
Extract NEC Vr54xx helpers from op_helper.c to a new file:
'vr54xx_helper.c'.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201120210844.2625602-14-f4bug@amsat.org>
---
target/mips/tcg/op_helper.c | 118 --------------------------
target/mips/tcg/vr54xx_helper.c | 142 ++++++++++++++++++++++++++++++++
target/mips/tcg/meson.build | 1 +
3 files changed, 143 insertions(+), 118 deletions(-)
create mode 100644 target/mips/tcg/vr54xx_helper.c
diff --git a/target/mips/tcg/op_helper.c b/target/mips/tcg/op_helper.c
index fafbf1faca7..ef3dafcbb3f 100644
--- a/target/mips/tcg/op_helper.c
+++ b/target/mips/tcg/op_helper.c
@@ -26,124 +26,6 @@
#include "exec/memop.h"
#include "fpu_helper.h"
-/* 64 bits arithmetic for 32 bits hosts */
-static inline uint64_t get_HILO(CPUMIPSState *env)
-{
- return ((uint64_t)(env->active_tc.HI[0]) << 32) |
- (uint32_t)env->active_tc.LO[0];
-}
-
-static inline target_ulong set_HIT0_LO(CPUMIPSState *env, uint64_t HILO)
-{
- env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
- return env->active_tc.HI[0] = (int32_t)(HILO >> 32);
-}
-
-static inline target_ulong set_HI_LOT0(CPUMIPSState *env, uint64_t HILO)
-{
- target_ulong tmp = env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
- env->active_tc.HI[0] = (int32_t)(HILO >> 32);
- return tmp;
-}
-
-/* Multiplication variants of the vr54xx. */
-target_ulong helper_muls(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HI_LOT0(env, 0 - ((int64_t)(int32_t)arg1 *
- (int64_t)(int32_t)arg2));
-}
-
-target_ulong helper_mulsu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HI_LOT0(env, 0 - (uint64_t)(uint32_t)arg1 *
- (uint64_t)(uint32_t)arg2);
-}
-
-target_ulong helper_macc(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HI_LOT0(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
- (int64_t)(int32_t)arg2);
-}
-
-target_ulong helper_macchi(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
- (int64_t)(int32_t)arg2);
-}
-
-target_ulong helper_maccu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HI_LOT0(env, (uint64_t)get_HILO(env) +
- (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
-}
-
-target_ulong helper_macchiu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, (uint64_t)get_HILO(env) +
- (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
-}
-
-target_ulong helper_msac(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HI_LOT0(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
- (int64_t)(int32_t)arg2);
-}
-
-target_ulong helper_msachi(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
- (int64_t)(int32_t)arg2);
-}
-
-target_ulong helper_msacu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HI_LOT0(env, (uint64_t)get_HILO(env) -
- (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
-}
-
-target_ulong helper_msachiu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, (uint64_t)get_HILO(env) -
- (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
-}
-
-target_ulong helper_mulhi(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, (int64_t)(int32_t)arg1 * (int64_t)(int32_t)arg2);
-}
-
-target_ulong helper_mulhiu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, (uint64_t)(uint32_t)arg1 *
- (uint64_t)(uint32_t)arg2);
-}
-
-target_ulong helper_mulshi(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, 0 - (int64_t)(int32_t)arg1 *
- (int64_t)(int32_t)arg2);
-}
-
-target_ulong helper_mulshiu(CPUMIPSState *env, target_ulong arg1,
- target_ulong arg2)
-{
- return set_HIT0_LO(env, 0 - (uint64_t)(uint32_t)arg1 *
- (uint64_t)(uint32_t)arg2);
-}
-
static inline target_ulong bitswap(target_ulong v)
{
v = ((v >> 1) & (target_ulong)0x5555555555555555ULL) |
diff --git a/target/mips/tcg/vr54xx_helper.c b/target/mips/tcg/vr54xx_helper.c
new file mode 100644
index 00000000000..2255bd11163
--- /dev/null
+++ b/target/mips/tcg/vr54xx_helper.c
@@ -0,0 +1,142 @@
+/*
+ * MIPS VR5432 emulation helpers
+ *
+ * Copyright (c) 2004-2005 Jocelyn Mayer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "exec/helper-proto.h"
+
+/* 64 bits arithmetic for 32 bits hosts */
+static inline uint64_t get_HILO(CPUMIPSState *env)
+{
+ return ((uint64_t)(env->active_tc.HI[0]) << 32) |
+ (uint32_t)env->active_tc.LO[0];
+}
+
+static inline target_ulong set_HIT0_LO(CPUMIPSState *env, uint64_t HILO)
+{
+ env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
+ return env->active_tc.HI[0] = (int32_t)(HILO >> 32);
+}
+
+static inline target_ulong set_HI_LOT0(CPUMIPSState *env, uint64_t HILO)
+{
+ target_ulong tmp = env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
+ env->active_tc.HI[0] = (int32_t)(HILO >> 32);
+ return tmp;
+}
+
+/* Multiplication variants of the vr54xx. */
+target_ulong helper_muls(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HI_LOT0(env, 0 - ((int64_t)(int32_t)arg1 *
+ (int64_t)(int32_t)arg2));
+}
+
+target_ulong helper_mulsu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HI_LOT0(env, 0 - (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
+
+target_ulong helper_macc(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HI_LOT0(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
+ (int64_t)(int32_t)arg2);
+}
+
+target_ulong helper_macchi(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
+ (int64_t)(int32_t)arg2);
+}
+
+target_ulong helper_maccu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HI_LOT0(env, (uint64_t)get_HILO(env) + (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
+
+target_ulong helper_macchiu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, (uint64_t)get_HILO(env) + (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
+
+target_ulong helper_msac(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HI_LOT0(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
+ (int64_t)(int32_t)arg2);
+}
+
+target_ulong helper_msachi(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
+ (int64_t)(int32_t)arg2);
+}
+
+target_ulong helper_msacu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HI_LOT0(env, (uint64_t)get_HILO(env) - (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
+
+target_ulong helper_msachiu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, (uint64_t)get_HILO(env) - (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
+
+target_ulong helper_mulhi(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, (int64_t)(int32_t)arg1 * (int64_t)(int32_t)arg2);
+}
+
+target_ulong helper_mulhiu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
+
+target_ulong helper_mulshi(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, 0 - (int64_t)(int32_t)arg1 *
+ (int64_t)(int32_t)arg2);
+}
+
+target_ulong helper_mulshiu(CPUMIPSState *env, target_ulong arg1,
+ target_ulong arg2)
+{
+ return set_HIT0_LO(env, 0 - (uint64_t)(uint32_t)arg1 *
+ (uint64_t)(uint32_t)arg2);
+}
diff --git a/target/mips/tcg/meson.build b/target/mips/tcg/meson.build
index bf4001e5741..68eb284e099 100644
--- a/target/mips/tcg/meson.build
+++ b/target/mips/tcg/meson.build
@@ -19,6 +19,7 @@
'translate.c',
'translate_addr_const.c',
'txx9_translate.c',
+ 'vr54xx_helper.c',
))
mips_ss.add(when: 'TARGET_MIPS64', if_true: files(
'tx79_translate.c',
--
2.31.1
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH-for-6.2 2/5] target/mips: Introduce decodetree structure for NEC Vr54xx extension
2021-08-01 23:59 [PATCH-for-6.2 0/5] target/mips: Convert NEC Vr54xx to decodetree Philippe Mathieu-Daudé
2021-08-01 23:59 ` [PATCH-for-6.2 1/5] target/mips: Extract NEC Vr54xx helpers to vr54xx_helper.c Philippe Mathieu-Daudé
@ 2021-08-01 23:59 ` Philippe Mathieu-Daudé
2021-08-02 19:42 ` Richard Henderson
2021-08-01 23:59 ` [PATCH-for-6.2 3/5] target/mips: Convert Vr54xx MACC* opcodes to decodetree Philippe Mathieu-Daudé
` (2 subsequent siblings)
4 siblings, 1 reply; 11+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-08-01 23:59 UTC (permalink / raw)
To: qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno, Philippe Mathieu-Daudé
The decoder is called but doesn't decode anything. This will
ease reviewing the next commit.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/tcg/translate.h | 1 +
target/mips/tcg/vr54xx.decode | 8 ++++++++
target/mips/tcg/translate.c | 3 +++
target/mips/tcg/vr54xx_translate.c | 19 +++++++++++++++++++
target/mips/tcg/meson.build | 2 ++
5 files changed, 33 insertions(+)
create mode 100644 target/mips/tcg/vr54xx.decode
create mode 100644 target/mips/tcg/vr54xx_translate.c
diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h
index c25fad597d5..d82c78c9bdc 100644
--- a/target/mips/tcg/translate.h
+++ b/target/mips/tcg/translate.h
@@ -201,5 +201,6 @@ bool decode_ext_txx9(DisasContext *ctx, uint32_t insn);
#if defined(TARGET_MIPS64)
bool decode_ext_tx79(DisasContext *ctx, uint32_t insn);
#endif
+bool decode_ext_vr54xx(DisasContext *ctx, uint32_t insn);
#endif
diff --git a/target/mips/tcg/vr54xx.decode b/target/mips/tcg/vr54xx.decode
new file mode 100644
index 00000000000..f6b3e42c999
--- /dev/null
+++ b/target/mips/tcg/vr54xx.decode
@@ -0,0 +1,8 @@
+# MIPS VR5432 instruction set extensions
+#
+# Copyright (C) 2021 Philippe Mathieu-Daudé
+#
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Reference: VR5432 Microprocessor User’s Manual
+# (Document Number U13751EU5V0UM00)
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index 34a96159d15..98dfcf5afd1 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -16109,6 +16109,9 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
if (cpu_supports_isa(env, INSN_R5900) && decode_ext_txx9(ctx, ctx->opcode)) {
return;
}
+ if (cpu_supports_isa(env, INSN_VR54XX) && decode_ext_vr54xx(ctx, ctx->opcode)) {
+ return;
+ }
if (decode_opc_legacy(env, ctx)) {
return;
diff --git a/target/mips/tcg/vr54xx_translate.c b/target/mips/tcg/vr54xx_translate.c
new file mode 100644
index 00000000000..13e58fdd8df
--- /dev/null
+++ b/target/mips/tcg/vr54xx_translate.c
@@ -0,0 +1,19 @@
+/*
+ * VR5432 extensions translation routines
+ *
+ * Reference: VR5432 Microprocessor User’s Manual
+ * (Document Number U13751EU5V0UM00)
+ *
+ * Copyright (c) 2021 Philippe Mathieu-Daudé
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "tcg/tcg-op.h"
+#include "exec/helper-gen.h"
+#include "translate.h"
+#include "internal.h"
+
+/* Include the auto-generated decoder. */
+#include "decode-vr54xx.c.inc"
diff --git a/target/mips/tcg/meson.build b/target/mips/tcg/meson.build
index 68eb284e099..259663a8893 100644
--- a/target/mips/tcg/meson.build
+++ b/target/mips/tcg/meson.build
@@ -3,6 +3,7 @@
decodetree.process('mips64r6.decode', extra_args: '--static-decode=decode_mips64r6'),
decodetree.process('msa.decode', extra_args: '--decode=decode_ase_msa'),
decodetree.process('tx79.decode', extra_args: '--static-decode=decode_tx79'),
+ decodetree.process('vr54xx.decode', extra_args: '--decode=decode_ext_vr54xx'),
]
mips_ss.add(gen)
@@ -20,6 +21,7 @@
'translate_addr_const.c',
'txx9_translate.c',
'vr54xx_helper.c',
+ 'vr54xx_translate.c',
))
mips_ss.add(when: 'TARGET_MIPS64', if_true: files(
'tx79_translate.c',
--
2.31.1
^ permalink raw reply related [flat|nested] 11+ messages in thread* Re: [PATCH-for-6.2 2/5] target/mips: Introduce decodetree structure for NEC Vr54xx extension
2021-08-01 23:59 ` [PATCH-for-6.2 2/5] target/mips: Introduce decodetree structure for NEC Vr54xx extension Philippe Mathieu-Daudé
@ 2021-08-02 19:42 ` Richard Henderson
0 siblings, 0 replies; 11+ messages in thread
From: Richard Henderson @ 2021-08-02 19:42 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno
On 8/1/21 1:59 PM, Philippe Mathieu-Daudé wrote:
> The decoder is called but doesn't decode anything. This will
> ease reviewing the next commit.
>
> Signed-off-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> target/mips/tcg/translate.h | 1 +
> target/mips/tcg/vr54xx.decode | 8 ++++++++
> target/mips/tcg/translate.c | 3 +++
> target/mips/tcg/vr54xx_translate.c | 19 +++++++++++++++++++
> target/mips/tcg/meson.build | 2 ++
> 5 files changed, 33 insertions(+)
> create mode 100644 target/mips/tcg/vr54xx.decode
> create mode 100644 target/mips/tcg/vr54xx_translate.c
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH-for-6.2 3/5] target/mips: Convert Vr54xx MACC* opcodes to decodetree
2021-08-01 23:59 [PATCH-for-6.2 0/5] target/mips: Convert NEC Vr54xx to decodetree Philippe Mathieu-Daudé
2021-08-01 23:59 ` [PATCH-for-6.2 1/5] target/mips: Extract NEC Vr54xx helpers to vr54xx_helper.c Philippe Mathieu-Daudé
2021-08-01 23:59 ` [PATCH-for-6.2 2/5] target/mips: Introduce decodetree structure for NEC Vr54xx extension Philippe Mathieu-Daudé
@ 2021-08-01 23:59 ` Philippe Mathieu-Daudé
2021-08-02 19:50 ` Richard Henderson
2021-08-01 23:59 ` [PATCH-for-6.2 4/5] target/mips: Convert Vr54xx MUL* " Philippe Mathieu-Daudé
2021-08-01 23:59 ` [PATCH-for-6.2 5/5] target/mips: Convert Vr54xx MSA* " Philippe Mathieu-Daudé
4 siblings, 1 reply; 11+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-08-01 23:59 UTC (permalink / raw)
To: qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno, Philippe Mathieu-Daudé
Convert the following Integer Multiply-Accumulate opcodes:
* MACC Multiply, accumulate, and move LO
* MACCHI Multiply, accumulate, and move HI
* MACCHIU Unsigned multiply, accumulate, and move HI
* MACCU Unsigned multiply, accumulate, and move LO
Since all opcodes are generated using the same pattern, we
add the gen_helper_mult_acc_t typedef and MULT_ACC() macro
to remove boilerplate code.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/tcg/vr54xx.decode | 9 +++++++
target/mips/tcg/translate.c | 16 ------------
target/mips/tcg/vr54xx_translate.c | 40 ++++++++++++++++++++++++++++++
3 files changed, 49 insertions(+), 16 deletions(-)
diff --git a/target/mips/tcg/vr54xx.decode b/target/mips/tcg/vr54xx.decode
index f6b3e42c999..73778f101a5 100644
--- a/target/mips/tcg/vr54xx.decode
+++ b/target/mips/tcg/vr54xx.decode
@@ -6,3 +6,12 @@
#
# Reference: VR5432 Microprocessor User’s Manual
# (Document Number U13751EU5V0UM00)
+
+&r rs rt rd
+
+@rs_rt_rd ...... rs:5 rt:5 rd:5 ..... ...... &r
+
+MACC 000000 ..... ..... ..... 00101011000 @rs_rt_rd
+MACCU 000000 ..... ..... ..... 00101011001 @rs_rt_rd
+MACCHI 000000 ..... ..... ..... 01101011000 @rs_rt_rd
+MACCHIU 000000 ..... ..... ..... 01101011001 @rs_rt_rd
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index 98dfcf5afd1..8d29a0d4e4b 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -300,16 +300,12 @@ enum {
enum {
OPC_VR54XX_MULS = (0x03 << 6) | OPC_MULT,
OPC_VR54XX_MULSU = (0x03 << 6) | OPC_MULTU,
- OPC_VR54XX_MACC = (0x05 << 6) | OPC_MULT,
- OPC_VR54XX_MACCU = (0x05 << 6) | OPC_MULTU,
OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT,
OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU,
OPC_VR54XX_MULHI = (0x09 << 6) | OPC_MULT,
OPC_VR54XX_MULHIU = (0x09 << 6) | OPC_MULTU,
OPC_VR54XX_MULSHI = (0x0B << 6) | OPC_MULT,
OPC_VR54XX_MULSHIU = (0x0B << 6) | OPC_MULTU,
- OPC_VR54XX_MACCHI = (0x0D << 6) | OPC_MULT,
- OPC_VR54XX_MACCHIU = (0x0D << 6) | OPC_MULTU,
OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT,
OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU,
};
@@ -3780,12 +3776,6 @@ static void gen_mul_vr54xx(DisasContext *ctx, uint32_t opc,
case OPC_VR54XX_MULSU:
gen_helper_mulsu(t0, cpu_env, t0, t1);
break;
- case OPC_VR54XX_MACC:
- gen_helper_macc(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MACCU:
- gen_helper_maccu(t0, cpu_env, t0, t1);
- break;
case OPC_VR54XX_MSAC:
gen_helper_msac(t0, cpu_env, t0, t1);
break;
@@ -3804,12 +3794,6 @@ static void gen_mul_vr54xx(DisasContext *ctx, uint32_t opc,
case OPC_VR54XX_MULSHIU:
gen_helper_mulshiu(t0, cpu_env, t0, t1);
break;
- case OPC_VR54XX_MACCHI:
- gen_helper_macchi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MACCHIU:
- gen_helper_macchiu(t0, cpu_env, t0, t1);
- break;
case OPC_VR54XX_MSACHI:
gen_helper_msachi(t0, cpu_env, t0, t1);
break;
diff --git a/target/mips/tcg/vr54xx_translate.c b/target/mips/tcg/vr54xx_translate.c
index 13e58fdd8df..85e2ec371b9 100644
--- a/target/mips/tcg/vr54xx_translate.c
+++ b/target/mips/tcg/vr54xx_translate.c
@@ -17,3 +17,43 @@
/* Include the auto-generated decoder. */
#include "decode-vr54xx.c.inc"
+
+/*
+ * Integer Multiply-Accumulate Instructions
+ *
+ * MACC Multiply, accumulate, and move LO
+ * MACCHI Multiply, accumulate, and move HI
+ * MACCHIU Unsigned multiply, accumulate, and move HI
+ * MACCU Unsigned multiply, accumulate, and move LO
+ */
+
+typedef void gen_helper_mult_acc_t(TCGv, TCGv_ptr, TCGv, TCGv);
+
+static bool trans_mult_acc(DisasContext *ctx, arg_r *a,
+ gen_helper_mult_acc_t *gen_helper_mult_acc)
+{
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+
+ gen_load_gpr(t0, a->rs);
+ gen_load_gpr(t1, a->rt);
+
+ gen_helper_mult_acc(t0, cpu_env, t0, t1);
+
+ gen_store_gpr(t0, a->rd);
+
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+
+ return false;
+}
+
+#define MULT_ACC(opcode, gen_helper) \
+static bool trans_##opcode(DisasContext *ctx, arg_r *a) \
+{ \
+ return trans_mult_acc(ctx, a, gen_helper); \
+}
+MULT_ACC(MACC, gen_helper_macc);
+MULT_ACC(MACCHI, gen_helper_macchi);
+MULT_ACC(MACCHIU, gen_helper_macchiu);
+MULT_ACC(MACCU, gen_helper_maccu);
--
2.31.1
^ permalink raw reply related [flat|nested] 11+ messages in thread* Re: [PATCH-for-6.2 3/5] target/mips: Convert Vr54xx MACC* opcodes to decodetree
2021-08-01 23:59 ` [PATCH-for-6.2 3/5] target/mips: Convert Vr54xx MACC* opcodes to decodetree Philippe Mathieu-Daudé
@ 2021-08-02 19:50 ` Richard Henderson
2021-08-02 23:26 ` Philippe Mathieu-Daudé
0 siblings, 1 reply; 11+ messages in thread
From: Richard Henderson @ 2021-08-02 19:50 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno
On 8/1/21 1:59 PM, Philippe Mathieu-Daudé wrote:
> Convert the following Integer Multiply-Accumulate opcodes:
>
> * MACC Multiply, accumulate, and move LO
> * MACCHI Multiply, accumulate, and move HI
> * MACCHIU Unsigned multiply, accumulate, and move HI
> * MACCU Unsigned multiply, accumulate, and move LO
>
> Since all opcodes are generated using the same pattern, we
> add the gen_helper_mult_acc_t typedef and MULT_ACC() macro
> to remove boilerplate code.
>
> Signed-off-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> target/mips/tcg/vr54xx.decode | 9 +++++++
> target/mips/tcg/translate.c | 16 ------------
> target/mips/tcg/vr54xx_translate.c | 40 ++++++++++++++++++++++++++++++
> 3 files changed, 49 insertions(+), 16 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> +#define MULT_ACC(opcode, gen_helper) \
> +static bool trans_##opcode(DisasContext *ctx, arg_r *a) \
> +{ \
> + return trans_mult_acc(ctx, a, gen_helper); \
> +}
Perhaps copy the TRANS macro from ppc/translate.c, so we don't have to have so many
single-use macros like this?
r~
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: [PATCH-for-6.2 3/5] target/mips: Convert Vr54xx MACC* opcodes to decodetree
2021-08-02 19:50 ` Richard Henderson
@ 2021-08-02 23:26 ` Philippe Mathieu-Daudé
0 siblings, 0 replies; 11+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-08-02 23:26 UTC (permalink / raw)
To: Richard Henderson, qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno
On 8/2/21 9:50 PM, Richard Henderson wrote:
> On 8/1/21 1:59 PM, Philippe Mathieu-Daudé wrote:
>> Convert the following Integer Multiply-Accumulate opcodes:
>>
>> * MACC Multiply, accumulate, and move LO
>> * MACCHI Multiply, accumulate, and move HI
>> * MACCHIU Unsigned multiply, accumulate, and move HI
>> * MACCU Unsigned multiply, accumulate, and move LO
>>
>> Since all opcodes are generated using the same pattern, we
>> add the gen_helper_mult_acc_t typedef and MULT_ACC() macro
>> to remove boilerplate code.
>>
>> Signed-off-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
>> ---
>> target/mips/tcg/vr54xx.decode | 9 +++++++
>> target/mips/tcg/translate.c | 16 ------------
>> target/mips/tcg/vr54xx_translate.c | 40 ++++++++++++++++++++++++++++++
>> 3 files changed, 49 insertions(+), 16 deletions(-)
>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
>
>
>> +#define MULT_ACC(opcode, gen_helper) \
>> +static bool trans_##opcode(DisasContext *ctx, arg_r *a) \
>> +{ \
>> + return trans_mult_acc(ctx, a, gen_helper); \
>> +}
>
> Perhaps copy the TRANS macro from ppc/translate.c, so we don't have to
> have so many single-use macros like this?
TIL the recent changes in ppc/translate.c, thanks, I will see what I
can reuse :)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH-for-6.2 4/5] target/mips: Convert Vr54xx MUL* opcodes to decodetree
2021-08-01 23:59 [PATCH-for-6.2 0/5] target/mips: Convert NEC Vr54xx to decodetree Philippe Mathieu-Daudé
` (2 preceding siblings ...)
2021-08-01 23:59 ` [PATCH-for-6.2 3/5] target/mips: Convert Vr54xx MACC* opcodes to decodetree Philippe Mathieu-Daudé
@ 2021-08-01 23:59 ` Philippe Mathieu-Daudé
2021-08-02 19:51 ` Richard Henderson
2021-08-01 23:59 ` [PATCH-for-6.2 5/5] target/mips: Convert Vr54xx MSA* " Philippe Mathieu-Daudé
4 siblings, 1 reply; 11+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-08-01 23:59 UTC (permalink / raw)
To: qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno, Philippe Mathieu-Daudé
Convert the following Integer Multiply-Accumulate opcodes:
* MULHI Multiply and move HI
* MULHIU Unsigned multiply and move HI
* MULS Multiply, negate, and move LO
* MULSHI Multiply, negate, and move HI
* MULSHIU Unsigned multiply, negate, and move HI
* MULSU Unsigned multiply, negate, and move LO
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/tcg/vr54xx.decode | 6 ++++++
target/mips/tcg/translate.c | 24 ------------------------
target/mips/tcg/vr54xx_translate.c | 12 ++++++++++++
3 files changed, 18 insertions(+), 24 deletions(-)
diff --git a/target/mips/tcg/vr54xx.decode b/target/mips/tcg/vr54xx.decode
index 73778f101a5..79bb5175eab 100644
--- a/target/mips/tcg/vr54xx.decode
+++ b/target/mips/tcg/vr54xx.decode
@@ -11,7 +11,13 @@
@rs_rt_rd ...... rs:5 rt:5 rd:5 ..... ...... &r
+MULS 000000 ..... ..... ..... 00011011000 @rs_rt_rd
+MULSU 000000 ..... ..... ..... 00011011001 @rs_rt_rd
MACC 000000 ..... ..... ..... 00101011000 @rs_rt_rd
MACCU 000000 ..... ..... ..... 00101011001 @rs_rt_rd
+MULHI 000000 ..... ..... ..... 01001011000 @rs_rt_rd
+MULHIU 000000 ..... ..... ..... 01001011001 @rs_rt_rd
+MULSHI 000000 ..... ..... ..... 01011011000 @rs_rt_rd
+MULSHIU 000000 ..... ..... ..... 01011011001 @rs_rt_rd
MACCHI 000000 ..... ..... ..... 01101011000 @rs_rt_rd
MACCHIU 000000 ..... ..... ..... 01101011001 @rs_rt_rd
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index 8d29a0d4e4b..4196319d827 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -298,14 +298,8 @@ enum {
#define MASK_MUL_VR54XX(op) (MASK_SPECIAL(op) | (op & (0x1F << 6)))
enum {
- OPC_VR54XX_MULS = (0x03 << 6) | OPC_MULT,
- OPC_VR54XX_MULSU = (0x03 << 6) | OPC_MULTU,
OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT,
OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU,
- OPC_VR54XX_MULHI = (0x09 << 6) | OPC_MULT,
- OPC_VR54XX_MULHIU = (0x09 << 6) | OPC_MULTU,
- OPC_VR54XX_MULSHI = (0x0B << 6) | OPC_MULT,
- OPC_VR54XX_MULSHIU = (0x0B << 6) | OPC_MULTU,
OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT,
OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU,
};
@@ -3770,30 +3764,12 @@ static void gen_mul_vr54xx(DisasContext *ctx, uint32_t opc,
gen_load_gpr(t1, rt);
switch (opc) {
- case OPC_VR54XX_MULS:
- gen_helper_muls(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULSU:
- gen_helper_mulsu(t0, cpu_env, t0, t1);
- break;
case OPC_VR54XX_MSAC:
gen_helper_msac(t0, cpu_env, t0, t1);
break;
case OPC_VR54XX_MSACU:
gen_helper_msacu(t0, cpu_env, t0, t1);
break;
- case OPC_VR54XX_MULHI:
- gen_helper_mulhi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULHIU:
- gen_helper_mulhiu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULSHI:
- gen_helper_mulshi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULSHIU:
- gen_helper_mulshiu(t0, cpu_env, t0, t1);
- break;
case OPC_VR54XX_MSACHI:
gen_helper_msachi(t0, cpu_env, t0, t1);
break;
diff --git a/target/mips/tcg/vr54xx_translate.c b/target/mips/tcg/vr54xx_translate.c
index 85e2ec371b9..1e6000d3d15 100644
--- a/target/mips/tcg/vr54xx_translate.c
+++ b/target/mips/tcg/vr54xx_translate.c
@@ -25,6 +25,12 @@
* MACCHI Multiply, accumulate, and move HI
* MACCHIU Unsigned multiply, accumulate, and move HI
* MACCU Unsigned multiply, accumulate, and move LO
+ * MULHI Multiply and move HI
+ * MULHIU Unsigned multiply and move HI
+ * MULS Multiply, negate, and move LO
+ * MULSHI Multiply, negate, and move HI
+ * MULSHIU Unsigned multiply, negate, and move HI
+ * MULSU Unsigned multiply, negate, and move LO
*/
typedef void gen_helper_mult_acc_t(TCGv, TCGv_ptr, TCGv, TCGv);
@@ -57,3 +63,9 @@ MULT_ACC(MACC, gen_helper_macc);
MULT_ACC(MACCHI, gen_helper_macchi);
MULT_ACC(MACCHIU, gen_helper_macchiu);
MULT_ACC(MACCU, gen_helper_maccu);
+MULT_ACC(MULHI, gen_helper_mulhi);
+MULT_ACC(MULHIU, gen_helper_mulhiu);
+MULT_ACC(MULS, gen_helper_muls);
+MULT_ACC(MULSHI, gen_helper_mulshi);
+MULT_ACC(MULSHIU, gen_helper_mulshiu);
+MULT_ACC(MULSU, gen_helper_mulsu);
--
2.31.1
^ permalink raw reply related [flat|nested] 11+ messages in thread* Re: [PATCH-for-6.2 4/5] target/mips: Convert Vr54xx MUL* opcodes to decodetree
2021-08-01 23:59 ` [PATCH-for-6.2 4/5] target/mips: Convert Vr54xx MUL* " Philippe Mathieu-Daudé
@ 2021-08-02 19:51 ` Richard Henderson
0 siblings, 0 replies; 11+ messages in thread
From: Richard Henderson @ 2021-08-02 19:51 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno
On 8/1/21 1:59 PM, Philippe Mathieu-Daudé wrote:
> Convert the following Integer Multiply-Accumulate opcodes:
>
> * MULHI Multiply and move HI
> * MULHIU Unsigned multiply and move HI
> * MULS Multiply, negate, and move LO
> * MULSHI Multiply, negate, and move HI
> * MULSHIU Unsigned multiply, negate, and move HI
> * MULSU Unsigned multiply, negate, and move LO
>
> Signed-off-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> target/mips/tcg/vr54xx.decode | 6 ++++++
> target/mips/tcg/translate.c | 24 ------------------------
> target/mips/tcg/vr54xx_translate.c | 12 ++++++++++++
> 3 files changed, 18 insertions(+), 24 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH-for-6.2 5/5] target/mips: Convert Vr54xx MSA* opcodes to decodetree
2021-08-01 23:59 [PATCH-for-6.2 0/5] target/mips: Convert NEC Vr54xx to decodetree Philippe Mathieu-Daudé
` (3 preceding siblings ...)
2021-08-01 23:59 ` [PATCH-for-6.2 4/5] target/mips: Convert Vr54xx MUL* " Philippe Mathieu-Daudé
@ 2021-08-01 23:59 ` Philippe Mathieu-Daudé
2021-08-02 20:36 ` Richard Henderson
4 siblings, 1 reply; 11+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-08-01 23:59 UTC (permalink / raw)
To: qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno, Philippe Mathieu-Daudé
Convert the following Integer Multiply-Accumulate opcodes:
* MSAC Multiply, negate, accumulate, and move LO
* MSACHI Multiply, negate, accumulate, and move HI
* MSACHIU Unsigned multiply, negate, accumulate, and move HI
* MSACU Unsigned multiply, negate, accumulate, and move LO
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/tcg/vr54xx.decode | 4 +++
target/mips/tcg/translate.c | 55 ++----------------------------
target/mips/tcg/vr54xx_translate.c | 8 +++++
3 files changed, 14 insertions(+), 53 deletions(-)
diff --git a/target/mips/tcg/vr54xx.decode b/target/mips/tcg/vr54xx.decode
index 79bb5175eab..4fc708d80ae 100644
--- a/target/mips/tcg/vr54xx.decode
+++ b/target/mips/tcg/vr54xx.decode
@@ -15,9 +15,13 @@ MULS 000000 ..... ..... ..... 00011011000 @rs_rt_rd
MULSU 000000 ..... ..... ..... 00011011001 @rs_rt_rd
MACC 000000 ..... ..... ..... 00101011000 @rs_rt_rd
MACCU 000000 ..... ..... ..... 00101011001 @rs_rt_rd
+MSAC 000000 ..... ..... ..... 00111011000 @rs_rt_rd
+MSACU 000000 ..... ..... ..... 00111011001 @rs_rt_rd
MULHI 000000 ..... ..... ..... 01001011000 @rs_rt_rd
MULHIU 000000 ..... ..... ..... 01001011001 @rs_rt_rd
MULSHI 000000 ..... ..... ..... 01011011000 @rs_rt_rd
MULSHIU 000000 ..... ..... ..... 01011011001 @rs_rt_rd
MACCHI 000000 ..... ..... ..... 01101011000 @rs_rt_rd
MACCHIU 000000 ..... ..... ..... 01101011001 @rs_rt_rd
+MSACHI 000000 ..... ..... ..... 01111011000 @rs_rt_rd
+MSACHIU 000000 ..... ..... ..... 01111011001 @rs_rt_rd
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index 4196319d827..bdce6356c27 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -294,16 +294,6 @@ enum {
R6_OPC_SDBBP = 0x0e | OPC_SPECIAL,
};
-/* Multiplication variants of the vr54xx. */
-#define MASK_MUL_VR54XX(op) (MASK_SPECIAL(op) | (op & (0x1F << 6)))
-
-enum {
- OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT,
- OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU,
- OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT,
- OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU,
-};
-
/* REGIMM (rt field) opcodes */
#define MASK_REGIMM(op) (MASK_OP_MAJOR(op) | (op & (0x1F << 16)))
@@ -3754,40 +3744,6 @@ static void gen_mul_txx9(DisasContext *ctx, uint32_t opc,
tcg_temp_free(t1);
}
-static void gen_mul_vr54xx(DisasContext *ctx, uint32_t opc,
- int rd, int rs, int rt)
-{
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
-
- switch (opc) {
- case OPC_VR54XX_MSAC:
- gen_helper_msac(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSACU:
- gen_helper_msacu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSACHI:
- gen_helper_msachi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSACHIU:
- gen_helper_msachiu(t0, cpu_env, t0, t1);
- break;
- default:
- MIPS_INVAL("mul vr54xx");
- gen_reserved_instruction(ctx);
- goto out;
- }
- gen_store_gpr(t0, rd);
-
- out:
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
static void gen_cl(DisasContext *ctx, uint32_t opc,
int rd, int rs)
{
@@ -14104,13 +14060,12 @@ static void decode_opc_special_tx79(CPUMIPSState *env, DisasContext *ctx)
static void decode_opc_special_legacy(CPUMIPSState *env, DisasContext *ctx)
{
- int rs, rt, rd, sa;
+ int rs, rt, rd;
uint32_t op1;
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
- sa = (ctx->opcode >> 6) & 0x1f;
op1 = MASK_SPECIAL(ctx->opcode);
switch (op1) {
@@ -14139,13 +14094,7 @@ static void decode_opc_special_legacy(CPUMIPSState *env, DisasContext *ctx)
break;
case OPC_MULT:
case OPC_MULTU:
- if (sa) {
- check_insn(ctx, INSN_VR54XX);
- op1 = MASK_MUL_VR54XX(ctx->opcode);
- gen_mul_vr54xx(ctx, op1, rd, rs, rt);
- } else {
- gen_muldiv(ctx, op1, rd & 3, rs, rt);
- }
+ gen_muldiv(ctx, op1, rd & 3, rs, rt);
break;
case OPC_DIV:
case OPC_DIVU:
diff --git a/target/mips/tcg/vr54xx_translate.c b/target/mips/tcg/vr54xx_translate.c
index 1e6000d3d15..6661bf39eee 100644
--- a/target/mips/tcg/vr54xx_translate.c
+++ b/target/mips/tcg/vr54xx_translate.c
@@ -25,6 +25,10 @@
* MACCHI Multiply, accumulate, and move HI
* MACCHIU Unsigned multiply, accumulate, and move HI
* MACCU Unsigned multiply, accumulate, and move LO
+ * MSAC Multiply, negate, accumulate, and move LO
+ * MSACHI Multiply, negate, accumulate, and move HI
+ * MSACHIU Unsigned multiply, negate, accumulate, and move HI
+ * MSACU Unsigned multiply, negate, accumulate, and move LO
* MULHI Multiply and move HI
* MULHIU Unsigned multiply and move HI
* MULS Multiply, negate, and move LO
@@ -63,6 +67,10 @@ MULT_ACC(MACC, gen_helper_macc);
MULT_ACC(MACCHI, gen_helper_macchi);
MULT_ACC(MACCHIU, gen_helper_macchiu);
MULT_ACC(MACCU, gen_helper_maccu);
+MULT_ACC(MSAC, gen_helper_msac);
+MULT_ACC(MSACHI, gen_helper_msachi);
+MULT_ACC(MSACHIU, gen_helper_msachiu);
+MULT_ACC(MSACU, gen_helper_msacu);
MULT_ACC(MULHI, gen_helper_mulhi);
MULT_ACC(MULHIU, gen_helper_mulhiu);
MULT_ACC(MULS, gen_helper_muls);
--
2.31.1
^ permalink raw reply related [flat|nested] 11+ messages in thread* Re: [PATCH-for-6.2 5/5] target/mips: Convert Vr54xx MSA* opcodes to decodetree
2021-08-01 23:59 ` [PATCH-for-6.2 5/5] target/mips: Convert Vr54xx MSA* " Philippe Mathieu-Daudé
@ 2021-08-02 20:36 ` Richard Henderson
0 siblings, 0 replies; 11+ messages in thread
From: Richard Henderson @ 2021-08-02 20:36 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Aleksandar Rikalo, Aurelien Jarno
On 8/1/21 1:59 PM, Philippe Mathieu-Daudé wrote:
> Convert the following Integer Multiply-Accumulate opcodes:
>
> * MSAC Multiply, negate, accumulate, and move LO
> * MSACHI Multiply, negate, accumulate, and move HI
> * MSACHIU Unsigned multiply, negate, accumulate, and move HI
> * MSACU Unsigned multiply, negate, accumulate, and move LO
>
> Signed-off-by: Philippe Mathieu-Daudé<f4bug@amsat.org>
> ---
> target/mips/tcg/vr54xx.decode | 4 +++
> target/mips/tcg/translate.c | 55 ++----------------------------
> target/mips/tcg/vr54xx_translate.c | 8 +++++
> 3 files changed, 14 insertions(+), 53 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 11+ messages in thread