X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fds390%2Fpeeph.def;h=4f920ca33a1412bef41d812e2fa491de97255468;hb=a44f4c2a2552a6e419223ee11051b4e31e158fa5;hp=71b5cd29361949b5c34f516c3a2f22009204ce3d;hpb=3c4f4f96e198ac13a0a897ec7fab3099694f753f;p=fw%2Fsdcc

diff --git a/src/ds390/peeph.def b/src/ds390/peeph.def
index 71b5cd29..4f920ca3 100644
--- a/src/ds390/peeph.def
+++ b/src/ds390/peeph.def
@@ -1004,13 +1004,14 @@ replace {
         mov  %1,@r%2
 }
 
-replace {
-        mov  %1,%2
-        mov  %2,%1
-} by {
-        ; Peephole 177   removed redundant mov
-        mov  %1,%2
-}
+// this one will screw assignes to volatile/sfr's
+//replace {
+//        mov  %1,%2
+//        mov  %2,%1
+//} by {
+//        ; Peephole 177   removed redundant mov
+//        mov  %1,%2
+//}
 
 replace {
         mov  a,%1
@@ -1059,6 +1060,15 @@ replace {
         mov  dptr,#0x0000
 }
 
+replace {
+	mov dpl,#%1
+	mov dph,#(%1 >> 8)
+	mov dpx,#(%1 >> 16)
+} by {
+	; Peephole 182b used 24 bit load of DPTR
+	mov dptr,#%1
+}
+
 // saves 2 bytes, ?? cycles.
 replace {
         mov  dpl,#%1
@@ -1882,3 +1892,43 @@ replace {
 	mov	dptr, %2
 ; Peephole 224: DPS usage re-arranged.
 }
+
+replace {
+	mov	dps, #0x01
+	mov	dptr, %1
+	mov	dps, #0x00
+} by {
+	mov	dps, #0x01
+	mov	dptr, %1
+	dec	dps
+}
+
+replace {
+	xch	a, ap
+	add	a, ap
+} by {
+	add 	a, ap
+}
+
+replace {
+	xch	a, ap
+	addc	a, ap
+} by {
+	addc 	a, ap
+}
+
+replace {
+	inc 	dps
+	mov	dps, #0x%1
+} by {
+	mov     dps, #0x%1
+}
+
+replace {
+	dec 	dps
+	mov	dps, #0x%1
+} by {
+	mov     dps, #0x%1
+}
+
+