diff options
Diffstat (limited to 'target-tricore/helper.c')
-rw-r--r-- | target-tricore/helper.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/target-tricore/helper.c b/target-tricore/helper.c new file mode 100644 index 0000000000..ee7f0076c0 --- /dev/null +++ b/target-tricore/helper.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn + * + * 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 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/>. + */ + +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <inttypes.h> +#include <signal.h> + +#include "cpu.h" + +int cpu_tricore_handle_mmu_fault(CPUState *cs, target_ulong address, + int rw, int mmu_idx) +{ + return 0; +} + +void tricore_cpu_do_interrupt(CPUState *cs) +{ +} + +TriCoreCPU *cpu_tricore_init(const char *cpu_model) +{ + return TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, cpu_model)); +} + +static void tricore_cpu_list_entry(gpointer data, gpointer user_data) +{ + ObjectClass *oc = data; + CPUListState *s = user_data; + const char *typename; + char *name; + + typename = object_class_get_name(oc); + name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_TRICORE_CPU)); + (*s->cpu_fprintf)(s->file, " %s\n", + name); + g_free(name); +} + +void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf) +{ + CPUListState s = { + .file = f, + .cpu_fprintf = cpu_fprintf, + }; + GSList *list; + + list = object_class_get_list(TYPE_TRICORE_CPU, false); + (*cpu_fprintf)(f, "Available CPUs:\n"); + g_slist_foreach(list, tricore_cpu_list_entry, &s); + g_slist_free(list); +} + +uint32_t psw_read(CPUTriCoreState *env) +{ + /* clear all USB bits */ + env->PSW &= 0xffffff; + /* now set them from the cache */ + env->PSW |= ((env->PSW_USB_C != 0) << 31); + env->PSW |= ((env->PSW_USB_V & (1 << 31)) >> 1); + env->PSW |= ((env->PSW_USB_SV & (1 << 31)) >> 2); + env->PSW |= ((env->PSW_USB_AV & (1 << 31)) >> 3); + env->PSW |= ((env->PSW_USB_SAV & (1 << 31)) >> 4); + + return env->PSW; +} + +void psw_write(CPUTriCoreState *env, uint32_t val) +{ + env->PSW_USB_C = (val & MASK_USB_C); + env->PSW_USB_V = (val & MASK_USB_V << 1); + env->PSW_USB_SV = (val & MASK_USB_SV << 2); + env->PSW_USB_AV = ((val & MASK_USB_AV) << 3); + env->PSW_USB_SAV = ((val & MASK_USB_SAV) << 4); + env->PSW = val; +} |