SDS/sds_diag.txt

   1 SDS Diagnostics, using the SDS 930/940 Master Diagnostic Tape image (D930X4A.TAP)
   2
   3 Summary
   4
   5 930 0-16K Memory Test                   passed
   6 930 16K-32K Memory Test                 passed
   7 930 Instruction Test                    passed
   8 930 P&S Register Test                   passed
   9
  10 ---
  11 930 0-16K Memory Test
  12
  13 sim> att mt diag.tap
  14 sim> d a 1
  15 sim> d bpt4 1                           ; stop every 1/2 cycle
  16 sim> boot mt
  17
  18 HALT instruction, P: 00050 (STA 122,4)
  19 sim> ex a
  20 A:      00000000                        ; error count
  21 sim> c
  22
  23 HALT instruction, P: 37650 (STA 37722,4)
  24
  25 sim> ex a
  26 A:      00000000                        ; error count
  27
  28 ---
  29 930 16K-32K Memory Test
  30
  31 sim> att mt diag.tap
  32 sim> d a 2
  33 sim> d bpt4 2                           ; stop every 1/2 cycle
  34 sim> boot mt
  35
  36
  37 HALT instruction, P: 00050 (STA 6)
  38 sim> ex a
  39 A:      00000000                        ; error count
  40 sim> c
  41
  42 HALT instruction, P: 37650 (STA 37406)
  43 sim> ex a
  44 A:      00000000                        ; error count
  45 sim> c
  46
  47 ---
  48 930 Instruction Diagnostic
  49
  50 sim> att mt diag.tap
  51 sim> d a 3
  52 sim> br 17                              ; catch start of diagnostic
  53 sim> boot mt
  54
  55 Breakpoint, P: 00017 (BRR 12,2)
  56 sim> nobr 17
  57 sim> br 112                             ; catch end of diagnostic
  58 sim> c
  59
  60 Breakpoint, P: 00112 (BRU 3)
  61
  62 ---
  63 930 P&S Register Test
  64
  65 sim> att mt diag.tap
  66 sim> d a 4
  67 sim> br 60                              ; catch end of pass
  68 sim> boot mt
  69
  70 Breakpoint, P: 00060 (BRU 22)
  71
  72 ---
  73 Bugs
  74
  75 1.  IO: Channel WAR not cleared after memory store
  76 2.  IO: dev_map should contain _flags, not _v_flags
  77 3.  SYS: Errors in system tables
  78 4.  SYS: Character conversion table had 0 (space) as illegal, should be -1
  79 5.  IO: Channel CPW calculation wrong for 12b mode
  80 6.  RAD, DSK, MT: Instruction masks wrong for RAD, DSK, MT
  81 7.  IO: Missing subscripts in dev_disp references
  82 8.  RAD: typos referencing DSK
  83 9.  IO: SKS 3 call incorrect
  84 10. DRM: Drum track mask width incorrect
  85 11. CPU: Memory management trap left reason in bogus state, stopped simulator
  86 12. CPU: Interrupts require api_lvl as well as api_lvlhi, like PDP-10, PDP-15
  87 13. CPU: Bug in find interrupt request
  88 14. CPU: Interrupt priority scheme recoded for left to right priority
  89 15. CPU: overflow test coded backwards
  90 16. CPU: Rotates operate mod 48, not with upper limit of 48 (manual incorrect)
  91 17. CPU: RSH not handling >= 48 correctly
  92 18. CPU: CNA is 2's complement not 1's complement
  93 19. CPU: MUL failed to mask cross product correctly
  94 20. CPU: EM2, EM3 test using wrong 'channel'
  95 21. CPU: EM3 test tested EM2 instead
  96 22. CPU: POP must save EM2, EM3 like BRM (manual incorrect)
  97 23. CPU: Shifts need special EA calculation, direct cycles using 9b indexing
  98 24. CPU: Shifts ignore addr<13:14>
  99 25. CPU: Diagnostic uses undefined shift 'normalize cyclic'
 100 26. CPU: Divide 2'c complement of AB leaves B<23> unchanged
 101 27. CPU: Divide overflow test requires special cases for divd.h == divr
 102 28. CPU: Divide uses non-restoring algorithm
 103 29. CPU: Channel terminate output must be deferred until channel buffer clears
 104 30. CPU: Channel terminate output to magtape is convert to scan, must be
 105     handled in channel logic
 106 31. SYS: duplicate entries for shifts
 107 32. SYS: mask for shifts did not include indirect flag
 108 33. MUX: Genie/SDS use inverted meanings for line enable flag
 109 34. MT: missing fseek before write eof
 110 35. MT: displayed characters only 7b wide instead of 8b
 111 36. CPU: EOD 20000 used by diagnostic (EM change is NOP)
 112 37. CPU: SKD sets all 24b of X, not just exponent
 113 38. CPU: reset should not clear A, B, X