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authorths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-08 13:04:02 +0000
committerths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-08 13:04:02 +0000
commit81fdc5f8d2d681da8d255baf0713144f8656bac9 (patch)
tree678e81ba4ef8b6a7cc2efe2048c3195a81d3b8b4 /target-cris/op_helper.c
parent4fa551d76893dfdd976d2745a42c17ca1cedaa55 (diff)
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The remainder of CRIS CPU emulation files, by Edgar E. Iglesias.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3361 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-cris/op_helper.c')
-rw-r--r--target-cris/op_helper.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c
new file mode 100644
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--- /dev/null
+++ b/target-cris/op_helper.c
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+/*
+ * CRIS helper routines
+ *
+ * Copyright (c) 2007 AXIS Communications
+ * Written by Edgar E. Iglesias
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <assert.h>
+#include "exec.h"
+
+#define MMUSUFFIX _mmu
+#define GETPC() (__builtin_return_address(0))
+
+#define SHIFT 0
+#include "softmmu_template.h"
+
+#define SHIFT 1
+#include "softmmu_template.h"
+
+#define SHIFT 2
+#include "softmmu_template.h"
+
+#define SHIFT 3
+#include "softmmu_template.h"
+
+/* Try to fill the TLB and return an exception if error. If retaddr is
+ NULL, it means that the function was called in C code (i.e. not
+ from generated code or from helper.c) */
+/* XXX: fix it to restore all registers */
+void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr)
+{
+ TranslationBlock *tb;
+ CPUState *saved_env;
+ target_phys_addr_t pc;
+ int ret;
+
+ /* XXX: hack to restore env in all cases, even if not called from
+ generated code */
+ saved_env = env;
+ env = cpu_single_env;
+ ret = cpu_cris_handle_mmu_fault(env, addr, is_write, is_user, 1);
+ if (__builtin_expect(ret, 0)) {
+ if (retaddr) {
+ /* now we have a real cpu fault */
+ pc = (target_phys_addr_t)retaddr;
+ tb = tb_find_pc(pc);
+ if (tb) {
+ /* the PC is inside the translated code. It means that we have
+ a virtual CPU fault */
+ cpu_restore_state(tb, env, pc, NULL);
+ }
+ }
+ cpu_loop_exit();
+ }
+ env = saved_env;
+}
+
+void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
+ int is_asi)
+{
+
+}