ALU            BYTE           JUMP          DISPATCH
 0   Q           byte rot            jump cond
 1   .           .                   .
 2   carry       .                   .
 3   ALUF        .                   .
 4   .           .                   .
 5   .           .                   .
 6   .           byte length - 1     jump on condition or bit
 7   .           .                   jump invert cond
 8   .           .                   N-bit
 9   OB          .                   P-bit
10   .           .                   R-bit
11   .           .                   "jump lc increment"
12   "misc function???"
13    .
14   DEST   m adr                       jump addr    disp I-ARG
15    .     .                           .            .
16    .     .                           .            .
17    .     .                           .            .
18    .     .                           .            .
19    .     .                           .            .
20    .     func                        .            .
21    .     .                           .            .
22    .     .                           .            .
23    .     .                           .            .
24    .     .                           .            .
25    .     .                           .            .
26   A-MEM-DEST-FLAG                    .            disp push own address
27                                      .            disp write VMA
28                    ldb/dpb/sd        .            enable disp gc write test
29                    .                 .            enable disp oldspace test
30     OPCODE
31     OPCODE
32    M-SRC
33     .
34     .
35     .
36     .
37    m-src
38    M-FUNC-SRC-INDICATOR
39    A-SRC / disp addr
40     .
41     .
42     .
43     .
44     .
45     .
46     .
47     .
48     .
49     .
50    a-src
51   POPJ-AFTER-NEXT
52   MACRO-IR-DISPATCH
53   SOURCE-TO-MACRO-IR
54   MACRO-STREAM-ADVANCE
55   SLOW-DEST
56   ILONG
57   STAT-BIT
58   CLOBBERS-MEM-SUBR
59   HALT
60   
61
62
63