System Debug Reference Manual (32650-90888)

84 Chapter4
System Debug Command Specifications :-Exit
B (break)
BLP Search LPUB, the logon account library.
BS Search SYS, the system library.
BU Search USER, the user library.
For a full description of logical code addresses, refer to the section "Logical
Code Addresses" in chapter 2.
fname The file name of the NM user library. Since multiple NM libraries can be
bound with the XL= option on a RUN command,
:run nmprog; xl=lib1,lib2.testgrp,lib3
it is necessary to specify the desired NM USER library. For example,
BU lib1 204c
BU lib2.testgrp test20+1c0
If the file name is not fully qualified, the following defaults are used:
Default account: the account of the program file.
Default group: the group of the program file.
virtaddr The virtual address of NM code.
Virtaddr can be a short pointer, a long pointer, or a full logical code
pointer.
Short pointers are implicitly converted to long pointers using the STOL
(short to long) function.
cmabsaddr A full CM absolute code address specifies three necessary items:
• Either the CST or the CSTX.
• The absolute code segment number.
• The CM word offset within the code segment.
Absolute code addresses can be specified in two ways:
• As a long pointer (LPTR)
BA 23.2644 Implicit CST 23.2644
BAX 5.3204 Implicit CSTX 5.3204
• As a full absolute code pointer (ACPTR)
BA CST(2.200) Explicit CST coercion
BAX CSTX(2.200) Explicit CSTX coercion
BAX logtoabs(prog(1.20)) Explicit absolute conversion
The search path used for procedure name lookups is based on the
command suffix letter:
BA GRP, PUB, LGRP, LPUB, SYS
BAX PROG