1               /MI8-EH (TD8-E DECtape)
   2               SDSS=6771       / SKIP ON SINGLE LINE
   3               SDSQ=6773       / SKIP ON QUAD LINE
   4               SDLC=6774       / LOAD COMMAND REGISTER
   5               SDRC=6776       / READ MT REGISTER
   6               SDRD=6777       / READ DATA REGISTER
   7                       FIELD   0
   8                       *7300
   9 007300  1312  START,  TAD COMMND      / GET 2000
  10 007301  4312          JMS COMMND      / EXECUTE 3312 COMMAND
  11 007302  4312          JMS COMMND      / EXECUTE 1312 COMMAND
  12 007303  6773  AGAIN,  SDSQ            / WAIT FOR A WORD
  13 007304  5303          JMP .-1
  14 007305  6777          SDRD            / GET DATA WORD
  15 007306  3726          DCA I LOADAT    / STORE IT
  16 007307  2326          ISZ LOADAT      / BUMP POINTER
  17 007310  5303          JMP AGAIN       / NO SKIP, DO ANOTHER
  18 007311  5732          JMP I RUNAT     / BRANCH TO LOADED CODE
  19 007312  2000  COMMND, 2000            / "START COMMAND" SUBROUTINE
  20 007313  1300          TAD START       / ADD/GET 1312
  21 007314  6774          SDLC            / SEND THE COMMAND
  22 007315  6771  L07315, SDSS            / DONE?
  23 007316  5315          JMP .-1         / WAIT FOR IT
  24 007317  6776          SDRC            / GET MT REGISTER
  25 007320  0331          AND C77         / CHECK ONLY MT BITS
  26 007321  1327  D07321, TAD N0022       / EXPECT 022
  27 007322  7640          SZA CLA         / GOT IT?
  28 007323  5315          JMP L07315      / NO, CHECK AGAIN
  29 007324  2321          ISZ D07321      / HENCEFORTH EXPECT 031
  30 007325  5712          JMP I COMMND    / RETURN TO CALLER
  31 007326  7354  LOADAT, 7354            / STORE POINTER
  32 007327  7756  N0022,  -22             / MTR1 AND MTR4 SET FIRST TIME
  33 007330  7747          -31             / MTR1 MTR2, AND MTR5 SET THEREAFTER
  34 007331  0077  C77,    0077            / MTR BIT MASK
  35 007332  7400  RUNAT,  7400            / ADDRESS TO BRANCH TO
  36 007333  7777          7777
  37 007334  7777          7777
  38 007335  7777          7777
  39 007336  7777          7777
  40 007337  7777          7777
  41               $