gdb/include/hp-symtab.h

142    extension and immediate will always be one.
148   unsigned int extension:	1;
157    extension will always be one.
164   unsigned int extension:	1;
210    The first bit in each block is an extension bit.  This bit is zero
307   unsigned int extension:	1;
334   unsigned int extension:	1;
384   unsigned int extension:	1;
421   unsigned int extension:	1;
446   unsigned int extension:	1;
482   unsigned int extension:	1;
522   unsigned int extension:	1;
561   unsigned int extension:	1;
597   unsigned int extension:	1;
634   unsigned int extension:	1;
659   unsigned int extension:	1;
680   unsigned int extension:	1;
701   unsigned int extension:	1;
722   unsigned int extension:	1;
753   unsigned int extension:	1;
796   unsigned int extension:	1;
828   unsigned int extension:	1;
848   unsigned int extension:	1;
880   unsigned int extension:	1;
910   unsigned int extension:	1;
939   unsigned int extension:	1;    /* always zero */
999   unsigned int extension:   1;	   /* Always zero.  */
1016   unsigned int extension:   1;	   /* Always zero.  */
1025   unsigned int extension:   1;	   /* Always zero.  */
1040   unsigned int extension:   1;     /* Always zero.  */
1062   unsigned int extension:   1;	   /* Always zero.  */
1075   unsigned int extension:   1;	   /* always zero */
1087   unsigned int extension:   1;	   /* always zero */
1101   unsigned int extension:   1;	   /* always zero */
1116   unsigned int extension:   1;	   /* always zero */
1125   unsigned int extension:   1;	   /* always zero */
1140   unsigned int extension:   1;	   /* always zero */
1156   unsigned int extension:   1;	   /* always zero */
1179   unsigned int extension:   1;	   /* always zero */
1204   unsigned int extension:   1;	   /* always zero */
1231   unsigned int extension:   1;	   /* always zero */
1257   unsigned int extension:   1;	   /* always zero */
1278   unsigned int extension: 1;   /* always zero                  */
1315   unsigned int extension:	1;