| OPCODE | RX | RY |  (DEST USUALLY RX)
+--------+----+----+

00     --            20     FIXT          40     SUS            60     LSL
01     MOVE          21     FIXR          41     LUS            61     LSR
02     NEG           22     RNEG          42     RUM            62     ASL
03     ADD           23     RADD          43     LDREGS         63     ASR
04     SUB           24     RSUB          44     TRANS          64     DLSL
05     MPY           25     RMPY          45     DIRT           65     DLSR
06     DIV           26     RDIV          46     MOVE SR <- R   66
07     REM           27     MAKERD        47     MOVE R <- SR   67
08     NOT           28     LCOMP         48                    68     CSL
09     OR            29     FLOAT         49                    69
0A     XOR           2A     RCOMP         4A                    6A     SEB
0B     AND           2B                   4B                    6B
0C     CBIT          2C     EADD          4C     MAINT          6C
0D     SBIT          2D     ESUB          4D                    6D
0E     TBIT          2E     EMPY          4E     READ           6E
0F     CHK           2F     EDIV          4F     WRITE          6F

10     NOP           30     DFIXT         50     TEST >         70     LSL IMM
11     MOVE IMM      31     DFIXR         51     TEST <         71     LSR IMM
12                   32     DRNEG         52     TEST =         72     ASL IMM
13     ADD IMM       33     DRADD         53     CALLR          73     ASR IMM
14     SUB IMM       34     DRSUB         54     TEST IMM >     74     DLSL IMM
15     MPY IMM       35     DRMPY         55     TEST IMM <     75     DLSR IMM
16                   36     DRDIV         56     TEST IMM =     76
17                   37     MAKEDR        57     RET            77
18     NOT IMM       38     DCOMP         58     TEST <=        78     CSL IMM
19                   39     DFLOAT        59     TEST >=        79
1A                   3A     DRCOMP        5A     TEST <>        7A     SEH
1B     AND IMM       3B     TRAP          5B     KCALL          7B
1C                   3C                   5C     TEST IMM <=    7C
1D                   3D                   5D     TEST IMM >=    7D
1E                   3E                   5E     TEST IMM <>    7E
1F     CHK IMM       3F                   5F                    7F

INTEGER ARITH        ADD DIV MPY NEG REM SUB
LOGICAL              AND MOVE NOT OR XOR NOP
INT/LOG IMMED        MOVE NOT ADD SUB AND MPY
EXT PREC             EADD EDIV EMPY ESUB
REAL                 FIXR FIXT FLOAT MAKERD RADD RDIV RMPY RNEG RSUB
DOUBLE               DFIXR DFIXT DFLOAT DRADD DRDIV DRMPY DRNEG DRSUB MAKEDR
BIT                  CBIT SBIT TBIT
TEST VALUES          TEST
COMPARE              LCOMP DCOMP RCOMP DRCOMP
SHIFT                CSL LSL LSR ASL ASR DLSL DLSR
SIGN EXTEND          SEB SEH

SUS                  STORE TO USER SPACE
LUS                  LOAD FROM USER SPACE
RUM                  RETURN TO USER MODE
DIRT                 MARK PAGE DIRTY
TRANS                TRANSLATE VIRTUAL TO PHYSICAL
