diff --git a/rtl/SYSTEM.java b/rtl/SYSTEM.java
index ce1b50621e447042154ad9d70dc11136278673ff..20cbe60f2115f1167d1076d32f81b2f7a3040386 100644 (file)
--- a/rtl/SYSTEM.java
+++ b/rtl/SYSTEM.java
throw new RuntimeException("TRAP CODE " + n);
}
}
+
+ public static int ASH(int x, int n)
+ {
+ return (n > 0) ? (x << n) : (x >> Math.abs(n));
+ }
+
+ public static long ASH(long x, long n)
+ {
+ return (n > 0) ? (x << n) : (x >> Math.abs(n));
+ }
+
+ public static int LSH(int x, int n)
+ {
+ return (n > 0) ? (x << n) : (x >>> Math.abs(n));
+ }
+
+ public static long LSH(long x, long n)
+ {
+ return (n > 0) ? (x << n) : (x >>> Math.abs(n));
+ }
+
+ public static int ROT(int x, int n)
+ {
+ if(n > 0)
+ {
+ return (x << n) | (x >>> (Integer.SIZE - n));
+ }
+ else
+ {
+ n = Math.abs(n);
+ return (x >>> n) | (x << (Integer.SIZE - n));
+ }
+ }
+
+ public static long ROT(long x, long n)
+ {
+ if(n > 0)
+ {
+ return (x << n) | (x >>> (Long.SIZE - n));
+ }
+ else
+ {
+ n = Math.abs(n);
+ return (x >>> n) | (x << (Long.SIZE - n));
+ }
+ }
}