[#15] Combine on_{3,4,5}t_exec_cycle().

z80.h

@@ -1229,6 +1229,10 @@ class internals::disasm_base : public B {
         fast_u8 hi = self().on_read_next_byte();
         return make16(hi, lo); }
 
+    void on_3t_exec_cycle() {}
+    void on_4t_exec_cycle() {}
+    void on_5t_exec_cycle() {}
+
     void on_format(const char *fmt) {
         self().on_format_impl(fmt, /* args= */ nullptr);
     }
@@ -1566,10 +1570,6 @@ class z80_disasm
 
     fast_u8 on_disp_read() { return self().on_read_next_byte(); }
 
-    void on_3t_exec_cycle() {}
-    void on_4t_exec_cycle() {}
-    void on_5t_exec_cycle() {}
-
     void on_format_char(char c, const void **&args,
                         typename base::output_buff &out) {
         switch(c) {
@@ -2450,8 +2450,9 @@ class internals::executor_base : public B {
         self().set_pc_on_imm16_read(inc16(pc));
         return make16(hi, lo); }
 
-    void on_3t_exec_cycle() {
-        self().on_tick(3); }
+    void on_3t_exec_cycle() { self().on_tick(3); }
+    void on_4t_exec_cycle() { self().on_tick(4); }
+    void on_5t_exec_cycle() { self().on_tick(5); }
 
     fast_u8 on_input_cycle(fast_u16 port) {
         // Z80 samples the value at t4 of the input cycle, see
@@ -3954,14 +3955,6 @@ class z80_executor : public internals::executor_base<B> {
         return self().on_read_cycle(addr);
     }
 
-    void on_4t_exec_cycle() {
-        self().on_tick(4);
-    }
-
-    void on_5t_exec_cycle() {
-        self().on_tick(5);
-    }
-
 protected:
     using base::self;
 };