1 08/05/83 history_regs, hregs
 2 
 3 Syntax:  hregs {HREGS_specifier} {-control_args}
 4 
 5 
 6 Function: Displays a composite analysis or octal dump of the processor
 7 history registers.  This request, hregs, is useful by people who are
 8 knowledgable of the hardware.  The default action is to display the AU,
 9 CU and OU history registers for the pds in a threaded order and
10 interpreted format.
11 
12 
13 Argument (HREGS Specifiers):
14 -condition VIRTUAL-ADDR, -cond VIRTUAL-ADDR
15    displays history registers from a condition frame, the location of
16    which is described by VIRTUAL-ADDR.
17 -dump
18    displays the "dump" history registers from the BOS CPU at the time
19    the dump was taken.
20 -pds
21    displays the history registers that have been stored in the current
22    processes pds (Default).
23 VIRTUAL-ADDR
24    displays the history registers that have been stored at the address
25    space specified by VIRTUAL-ADDR.  See virtual_address.info.
26 
27 
28 Control Arguments:
29 -au
30    specifies that only the APU history registers are to be displayed.
31 -cu
32    specifies that only the CU history registers are to be displayed.
33 -du
34    specifies that only the DU history registers are to be displayed.
35 -interpret
36    Display the interpreted form of the history registers only
37    (Default), or, if -octal is specified, include the octal
38    representation also.
39 -octal, -oc
40    Displays the octal values of history registers only, or, if
41    -interpret is also specified, display octal and interpreted form.
42    If neither -octal nor -interpret is specified, the default action is
43    to display the interpreted form only.
44 -thread
45    Attempt to display the selected history registers in the "correct"
46    order (Default).
47 -no_thread
48    Display the selected history registers in serial order, without
49    attempting to sort them.
50 -ou
51    specifies that only the OU history registers are to be displayed.
52 
53 
54 Notes: Use of the -au, -ou, -cu and -du control arguments imply
55    -no_thread and the display will not be in a threaded order.