Add 2 new optimizers

Also refactorize some of them for faster evalulation

Author: boriel

arch/zx48k/peephole/opts/014_o1_or_sbc_a_a.opt

@@ -0,0 +1,22 @@
+;; Replaces sequence:
+;;  or|xor|and a
+;;  sbc a, a
+;; with
+;;  xor a
+
+OLEVEL: 1
+OFLAG: 14
+
+REPLACE {{
+  $1 a
+  sbc a, a
+}}
+
+IF {{
+  ($1 IN (or, and, xor))
+}}
+
+WITH {{
+  xor a
+}}
+

arch/zx48k/peephole/opts/015_o3_ld_r_n_not_required.opt

@@ -0,0 +1,18 @@
+;; Removes sequence
+;;  ld a, XXXX
+;; if a is not used later
+
+OLEVEL: 3
+OFLAG: 15
+
+REPLACE {{
+  ld a, $1
+}}
+
+IF {{
+   !IS_REQUIRED(a)
+}}
+
+WITH {{
+}}
+

arch/zx48k/peephole/opts/016_o1_xor_a_jp_z.opt

@@ -0,0 +1,22 @@
+;; Replaces sequence:
+;;  or|xor|and a
+;;  sbc a, a
+;; with
+;;  xor a
+
+OLEVEL: 1
+OFLAG: 17
+
+REPLACE {{
+  xor a
+  $1 z, $2
+}}
+
+IF {{
+  ($1 IN (jp, jr))
+}}
+
+WITH {{
+  $1 $2
+}}
+

arch/zx48k/peephole/opts/027_ld_h_a_oper_A.opt

@@ -14,7 +14,7 @@ REPLACE {{
 }}
 
 IF {{
-  (($2 == or) || ($2 == xor) || ($2 == and) || ($2 == cp) || ($2 == sub) || ($2 == "add a,") || ($2 == "sbc a,"))
+  ($2 IN (or, xor, and, cp, sub, "add a,", "sbc a,"))
 }}
 
 WITH {{

arch/zx48k/peephole/opts/030_ora_jp_nc_jp.opt

@@ -14,7 +14,7 @@ REPLACE {{
 }}
 
 IF {{
-  (($1 == or) || ($1 == and)) && (($2 == jp) || ($2 == jr))
+  ($1 IN (or, xor, and, cp, sub)) && (($2 == jp) || ($2 == jr))
 }}
 
 WITH {{

arch/zx48k/peephole/opts/103_o3_or_and_a.opt

@@ -0,0 +1,17 @@
+;; Removes useless XOR a
+
+OLEVEL: 3
+OFLAG: 103
+
+REPLACE {{
+  $1 $2
+}}
+
+IF {{
+  ($1 IN (and, or)) &&
+  (($2 == a) || (!IS_REQUIRED(a))) &&
+  !IS_REQUIRED(f)
+}}
+
+WITH {{
+}}