1 files changed, 104 insertions, 0 deletions
diff --git a/target-lm32/op_helper.c b/target-lm32/op_helper.c
new file mode 100644
index 000000000..51edc1a0e
--- /dev/null
+++ b/target-lm32/op_helper.c
@@ -0,0 +1,104 @@
+#include <assert.h>
+#include "cpu.h"
+#include "dyngen-exec.h"
+#include "helper.h"
+#include "host-utils.h"
+
+#include "hw/lm32_pic.h"
+#include "hw/lm32_juart.h"
+
+#if !defined(CONFIG_USER_ONLY)
+#define MMUSUFFIX _mmu
+#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"
+
+void helper_raise_exception(uint32_t index)
+{
+    env->exception_index = index;
+    cpu_loop_exit(env);
+}
+
+void helper_hlt(void)
+{
+    env->halted = 1;
+    env->exception_index = EXCP_HLT;
+    cpu_loop_exit(env);
+}
+
+void helper_wcsr_im(uint32_t im)
+{
+    lm32_pic_set_im(env->pic_state, im);
+}
+
+void helper_wcsr_ip(uint32_t im)
+{
+    lm32_pic_set_ip(env->pic_state, im);
+}
+
+void helper_wcsr_jtx(uint32_t jtx)
+{
+    lm32_juart_set_jtx(env->juart_state, jtx);
+}
+
+void helper_wcsr_jrx(uint32_t jrx)
+{
+    lm32_juart_set_jrx(env->juart_state, jrx);
+}
+
+uint32_t helper_rcsr_im(void)
+{
+    return lm32_pic_get_im(env->pic_state);
+}
+
+uint32_t helper_rcsr_ip(void)
+{
+    return lm32_pic_get_ip(env->pic_state);
+}
+
+uint32_t helper_rcsr_jtx(void)
+{
+    return lm32_juart_get_jtx(env->juart_state);
+}
+
+uint32_t helper_rcsr_jrx(void)
+{
+    return lm32_juart_get_jrx(env->juart_state);
+}
+
+/* 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(CPULM32State *env1, target_ulong addr, int is_write, int mmu_idx,
+              uintptr_t retaddr)
+{
+    TranslationBlock *tb;
+    CPULM32State *saved_env;
+    int ret;
+
+    saved_env = env;
+    env = env1;
+
+    ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx);
+    if (unlikely(ret)) {
+        if (retaddr) {
+            /* now we have a real cpu fault */
+            tb = tb_find_pc(retaddr);
+            if (tb) {
+                /* the PC is inside the translated code. It means that we have
+                   a virtual CPU fault */
+                cpu_restore_state(tb, env, retaddr);
+            }
+        }
+        cpu_loop_exit(env);
+    }
+    env = saved_env;
+}
+#endif
+