--- /dev/null
+
+<USE "NEWSTRUC">
+
+<ENV-COND ((ENVIRONMENT MDL) <PUT BOOLEAN DECL '<OR ATOM FALSE>>)
+ (T <PUT-DECL BOOLEAN '<OR ATOM FALSE>>)>
+
+<SETG FCN ,FUNCTION>
+
+<DEFMAC GET-FIELD ('WD 'BITS)
+ <FORM CHTYPE <FORM GETBITS .WD .BITS> FIX>>
+
+<DEFMAC LHW ('WD) <FORM CHTYPE <FORM GETBITS .WD '<BITS 16 16>> FIX>>
+
+<DEFMAC RHW ('WD)
+ <FORM CHTYPE <FORM GETBITS .WD '<BITS 16>> FIX>>
+
+<DEFMAC PUT-LHW ('WD 'VAL)
+ <FORM PUTBITS .WD '<BITS 16 16> .VAL>>
+
+<DEFMAC PUT-RHW ('WD 'VAL)
+ <FORM PUTBITS .WD '<BITS 16> .VAL>>
+
+<DEFMAC TAB ()
+ '<PRINC !\ >>