User`s guide

KA52/53/54 Firmware Commands

3.1 Console I/O Mode Control Characters

Table 3–4 (Cont.) Console Command Qualiﬁers

Qualiﬁer Description

Data Control

/STEP:{size} Step. Overrides the default increment of the console current reference.

Commands that manipulate memory, such as EXAMINE, DEPOSIT,

MOVE, and SEARCH, normally increment the console current reference

by the size of the data being used.

/WRONG Wrong. On writes, 3 is used as the value of the ECC bits, which always

generates double bit errors. Ignores ECC errors on main memory reads.

Address Space Control

/G General purpose register (GPR) address space, R0–R15. The data size

is always longword.

/I Internal processor register (IPR) address space. Accessible only by the

MTPR and MFPR instructions. The data size is always longword.

/V Virtual memory address space. All access and protection checking occur.

If access to a program running with the current PSL is not allowed, the

console issues an error message. Deposits to virtual space cause the

PTE<M> bit to be set. If memory mapping is not enabled, virtual

addresses are equal to physical addresses. Note that when you examine

virtual memory, the address space and address in the response is the

physical address of the virtual address.

/P Physical memory address space.

/M Processor status longword (PSL) address space. The data size is always

longword.

/U Access to console private memory is allowed. This qualiﬁer also disables

virtual address protection checks. On virtual address writes, the

PTE<M> bit is not set if the /U qualiﬁer is present. This qualiﬁer is not

inherited; it must be respeciﬁed on each command.

3.1.6 Console Command Keywords

Table 3–5 lists command keywords by type. Table 3–6 lists the parameters,

qualiﬁers, and arguments for each console command. Parameters, used with

the SET and SHOW commands only, are listed in the ﬁrst column along with

the command.

You should not use abbreviations in programs. Although it is possible to

abbreviate by using the minimum number of characters required to uniquely

identify a command or parameter, these abbreviations may become ambiguous

at a later time if an updated version of the ﬁrmware contains new commands

or parameters.

KA52/53/54 Firmware Commands 3–9