User`s guide

KA52/53/54 Firmware Commands
3.1 Console I/O Mode Control Characters
CTRL/C
Echoes ^C<CR> and aborts processing of a command. When entered as part
of a command line, deletes the line.
CTRL/O
Ignores transmissions to the console terminal until the next
CTRL/O
is
entered. Echoes ^O when disabling output, not echoed when it re-enables
output. Output is re-enabled if the console prints an error message, or if it
prompts for a command from the terminal. Output is also enabled by entering
console I/O mode, by pressing the
BREAK
key, and by pressing
CTRL/C
.
3.1.1 Command Syntax
The console accepts commands up to 80 characters long. Longer commands
produce error messages. The character count does not include rubouts,
rubbed-out characters, or the
RETURN
at the end of the command.
You can abbreviate a command by entering only as many characters as are
required to make the command unique. Most commands can be recognized
from their first character. See Table 3–5.
The console treats two or more consecutive spaces and tabs as a single space.
Leading and trailing spaces and tabs are ignored. You can place command
qualifiers after the command keyword or after any symbol or number in the
command.
All numbers (addresses, data, counts) are hexadecimal (hex), but symbolic
register names contain decimal register numbers. The hex digits are 0 through
9 and A through F. You can use uppercase and lowercase letters in hex
numbers (A through F) and commands.
The following symbols are qualifier and argument conventions:
[] An optional qualifier or argument
{ } A required qualifier or argument
3.1.2 Address Specifiers
Several commands take one or more addresses as arguments. An address
defines the address space and the offset into that space. The console supports
five address spaces:
Physical memory
Virtual memory
General purpose registers (GPRs)
Internal processor registers (IPRs)
The PSL
The address space that the console references is inherited from the previous
console reference, unless you explicitly specify another address space. The
initial address space is physical memory.
KA52/53/54 Firmware Commands 3–3