target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insn

Signed-off-by: NRichard Henderson <richard.henderson@linaro.org>
Message-Id: <20180512050250.12774-10-richard.henderson@linaro.org>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

target/m68k/translate.c

@@ -6049,16 +6049,6 @@ void register_m68k_insns (CPUM68KState *env)
 #undef INSN
 }
 
-/* ??? Some of this implementation is not exception safe.  We should always
-   write back the result to memory before setting the condition codes.  */
-static void disas_m68k_insn(CPUM68KState * env, DisasContext *s)
-{
-    uint16_t insn = read_im16(env, s);
-    opcode_table[insn](env, s, insn);
-    do_writebacks(s);
-    do_release(s);
-}
-
 static void m68k_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu)
 {
     DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -6101,8 +6091,13 @@ static bool m68k_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
 static void m68k_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
 {
     DisasContext *dc = container_of(dcbase, DisasContext, base);
+    CPUM68KState *env = cpu->env_ptr;
+    uint16_t insn = read_im16(env, dc);
+
+    opcode_table[insn](env, dc, insn);
+    do_writebacks(dc);
+    do_release(dc);
 
-    disas_m68k_insn(cpu->env_ptr, dc);
     dc->base.pc_next = dc->pc;
 
     if (dc->base.is_jmp == DISAS_NEXT) {