target/mips: Extract NEC Vr54xx helpers to vr54xx_helper.c

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>

1 files changed, 142 insertions, 0 deletions

diff --git a/target/mips/tcg/vr54xx_helper.c b/target/mips/tcg/vr54xx_helper.c
new file mode 100644
index 0000000000..2255bd1116
--- /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);
+}