target-xtensa: implement disas_xtensa_insn

Set up disas_xtensa_insn switch structure, mark required options on high
level groups. Implement arithmetic/bit logic/jump/call0.

Implement code generation loop with single step/breakpoint checking.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/target-xtensa/op_helper.c b/target-xtensa/op_helper.c
index aafa33d8bd..0392fbe6bb 100644
--- a/target-xtensa/op_helper.c
+++ b/target-xtensa/op_helper.c
@@ -27,6 +27,7 @@
 
 #include "cpu.h"
 #include "dyngen-exec.h"
+#include "helpers.h"
 
 #define MMUSUFFIX _mmu
 
@@ -50,3 +51,9 @@ void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
             PAGE_READ | PAGE_WRITE | PAGE_EXEC,
             mmu_idx, TARGET_PAGE_SIZE);
 }
+
+void HELPER(exception)(uint32_t excp)
+{
+    env->exception_index = excp;
+    cpu_loop_exit(env);
+}