*COMDECK  COMSEIS - SKELETON DESCRIPTION FOR QCG. 
          CTEXT  COMSEIS - SKELETON DESCRIPTION FOR QCG.
          SPACE  4,10 
**        SKELETON OP-CODE TYPE VALUES. 
  
  
 M.COND   EQU    0           CONDITIONAL
 M.NORM   EQU    1           ARITHMETIC OP-CODES
 M.INCR   EQU    2           LOAD REGISTER OP-CODES 
 M.BRAN   EQU    3           BRANCH OP-CODES
 M.SHIF   EQU    4           REGISTER SHIFT OP-CODES
 M.ICALL  EQU    5           IF NEEDS TO CALL A EXTERNAL PROCESSOR TO 
 M.INOOP  EQU    6           SPECIAL TYPE FOR NOOPS 
 M.ISBRN  EQU    7           TYPE FOR A BRANCH TO OTHER SKELS 
 M.LOAD   EQU    10B         LOAD/STORE INSTRUCTIONS
 M.RND    EQU    21B         M.NORM + THE ROUNDABLE BIT.
 M.IEND   EQU    40B         END OF SKELETON
 P.IEND   EQU    59 
 SK.      SPACE  4,10 
**        SK. - WORD FORMAT OF SKELETON INSTRUCTION.
  
  
          DESCRIBE  SK.,60
 END      DEFINE 1
 RND      DEFINE 1
 TYP      DEFINE 6,59 
 GH       DEFINE 6
 OPC      DEFINE 9,53 
 IF       DEFINE 11 
 JF       DEFINE 11 
 KF       DEFINE 11 
 QF       DEFINE 12 
 ATTR     DEFINE 18,53
 ARG      DEFINE 18 
 JPAD     DEFINE 18 
 SR       SPACE  4,10 
**        SR.      -- SKELETON REGISTER/CONSTANT FIELD -- 
*                THE SR. STRUCTURE IS A SUB-STRUCTURE OF SK. IT 
*                RESIDES IN THE SK.I, SK.J, AND SK.K FIELDS.
*                THESE FIELDS CONTROL THE CONSTRUCTION IF THE 
*                I, J, AND K/Q PORTION OF A PREBINARY WORD. 
  
          DESCRIBE   SR.,11 
 OAD      DEFINE 5
 NUM      DEFINE 6
  
          ENDX
