new file mode 100644
@@ -0,0 +1,25 @@
+/*
+ * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 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/>.
+ */
+
+#ifndef HEXAGON_SYSTEM_EXT_MMVEC_H
+#define HEXAGON_SYSTEM_EXT_MMVEC_H
+
+void mem_gather_store(CPUHexagonState *env, target_ulong vaddr, int slot);
+void mem_vector_scatter_init(CPUHexagonState *env);
+void mem_vector_gather_init(CPUHexagonState *env);
+
+#endif
new file mode 100644
@@ -0,0 +1,47 @@
+/*
+ * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 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 "mmvec/system_ext_mmvec.h"
+
+void mem_gather_store(CPUHexagonState *env, target_ulong vaddr, int slot)
+{
+ size_t size = sizeof(MMVector);
+
+ env->vstore_pending[slot] = 1;
+ env->vstore[slot].va = vaddr;
+ env->vstore[slot].size = size;
+ memcpy(&env->vstore[slot].data.ub[0], &env->tmp_VRegs[0], size);
+
+ /* On a gather store, overwrite the store mask to emulate dropped gathers */
+ bitmap_copy(env->vstore[slot].mask, env->vtcm_log.mask, size);
+}
+
+void mem_vector_scatter_init(CPUHexagonState *env)
+{
+ bitmap_zero(env->vtcm_log.mask, MAX_VEC_SIZE_BYTES);
+
+ env->vtcm_pending = true;
+ env->vtcm_log.op = false;
+ env->vtcm_log.op_size = 0;
+}
+
+void mem_vector_gather_init(CPUHexagonState *env)
+{
+ bitmap_zero(env->vtcm_log.mask, MAX_VEC_SIZE_BYTES);
+}
@@ -174,6 +174,7 @@ hexagon_ss.add(files(
'printinsn.c',
'arch.c',
'fma_emu.c',
+ 'mmvec/system_ext_mmvec.c',
))
target_arch += {'hexagon': hexagon_ss}