analyze_multics (azm) needs to support oct dec calc and index_set active functions.

[Gary Dixon]

In order to define useful abbreviations for use in analyzing dumps, several Multics active functions need to be defined in the analyze_multics request environment. These include:

• calc, plus, minus, times, divide: for calculations
• decimal, octal: for number base conversion
• index_set: for generation of a set of related numbers to permit display of a list of entries

By making these command/active-functions as azm requests, they can be used directly in azm request lines, and in abbreviations defined for use in azm requests.

These changes can easily be added to analyze_multics by listing the command/af entries in azm_request_table_.alm using the multics_request macro. Such capabilities would permit definition of simple abbreviations to display data structures from a dump.

Examples of such abbreviations are shown below.

azm:  sld 22
Could not find apte for process_idx 0
     dbr = 17543650
This is an early dump.

  ERF 22  in directory >dumps dumped at 09/19/21  0752.3 pdt Sun.
Proc   0 DBR  17543650 empty     last on cpu    Initializer.SysDaemon.z

azm:  .l
b cme      execute_string "display sst$cmp,*  -as ""cma(""[decimal &1o]"")"" "
b slte     execute_string "display slt +[octal [calc 4*[decimal &1o]+8]] -as slte"

The following shows use of the cme abbreviation to display a Core Map Entry (CME) for real memory page 337 (octal). Note that this CME has different values in two related dump IDs: 22 and 23.

azm:  cme 337
cma (223)                     @ 47|1604
  fp = "176144"b3, bp = "000604"b3, devadd = "0000011111010011010100"b, contr = "0"b3, ptwp = "016370"b3, astep = "016354"b3,
  pin_counter = 0, synch_page_entryp = "000000"b3
  ON:  io, abs_usable
  OFF: synch_held, er, removing, abs_w, notify_requested, phm_hedge

azm:  sld 23
Could not find apte for process_idx 0
     dbr = 17543650
This is an early dump.

  ERF 23  in directory >dumps dumped at 09/19/21  0758.0 pdt Sun.
Proc   0 DBR  17543650 empty     last on cpu    Initializer.SysDaemon.z

azm:  cme 337
cma (223)                     @ 47|1604
  fp = "000000"b3, bp = "000000"b3, devadd = "0000000000000000000000"b, contr = "0"b3, ptwp = "000000"b3, astep = "000000"b3,
  pin_counter = 0, synch_page_entryp = "000000"b3
  ON:  abs_w
  OFF: synch_held, io, er, removing, abs_usable, notify_requested, phm_hedge

The next example display the System Loader Table Entry (SLTE) for segment 60: idle_pdses

azm:  slte 60
slte                          @ 7|310
  names_ptr = "007300"b3, path_ptr = "000000"b3, access = "1010"b, cur_length = "001"b3,
  ringbrack (1) through ringbrack (3) = "0"b3, segno = "000060"b3, max_length = "000"b3, bit_count = "00110000"b3
  ON:  wired, link_sect_wired, combine_link
  OFF: cache, abs_seg, firmware_seg, layout_seg, breakpointable, paged, per_process, acl_provided, branch_required, init_seg,
       temp_seg, link_provided, link_sect, pre_linked, defs

[Gary Dixon]

MCR10098 will be entered to address this enhancement.

[Eric Swenson]

​https://s3.amazonaws.com/eswenson-multics/public/mcrs/MCR10098_azm_multics_reqs_v1.0.pdf

[Eric Swenson]

Fixed in MR12.8-1008.