Add rst 1 to store frame variables. Reduces Star Trek from 42339 to 41821

bytes.

mach/i80/ncg/table

@@ -460,10 +460,20 @@ uses hl_or_de={label,$1}		yields %a
 pat stl lol $1==$2
 with dereg				yields de de leaving stl $1
 
+#ifdef USE_I80_RSTS
+   pat stl sfit($1, 8)
+	  with dereg
+      kills hlreg, areg
+      gen
+         rst {const1, 2}
+         data1 {const1, $1}
+#endif
+
 pat stl
 	with dereg
 	uses hlreg={const2, $1}
-gen dad lb
+	gen
+		dad lb
 		mov {m}, e
 		inx hl
 		mov {m}, d