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PATCH COMMAND
21.2 -- PATCH Command Set
21.2.16
Instruction mnemonic decode mode
The
instruction
mnemonic decode
m~de
is similar to the
slash command explained above.
Instead
or
using
a
slash,
however,
the
open-parenthesis
character
« )
is used.
This
command allows changes to be applied to a series of locations
in
the file using
-M6800
or
M6809
assembly language mnemonics
instead of the hexadecimal operation codes.
The
format
Or
the command is
m(,nJ(CiJe)]
where
"m"
and
"n" specify the starting location (either Hm
plus offset" or "m plus nUl, the
open-parenthesis
character
signl~les
~ne
start of
the
inst~uctian
mnemonic decode mode;
"in can be ang valid M6800 assembly language mnemonic
CM6809
assembly
language
mnemonic
for
MDOS09),
and
the
close-parenthesis
character
indicates
the
end
of
the
instruction
decode
mode.
Since
the
close-parenthesis is
optionall the user can remain
in
the
instruction
mnemonic
decode
mode
to
enter several lines of
inst~uctions
until a
close-parenthesis character is entered.
Once the open-parenthesis command has been
issued,
all
other
PATCH commands are invalid until the close-parenthesis
command
is issuedl
or
until an error is encountered.
The
~ormat
of
the
commands
~ollowing
the
open-parenthesis command is
sho~n
below:
<blanks) )
<anYJ
<cr>
or
<blanks>
<opcode~
«blanks~
<operand>]
«any~
) <anYJJ <cr>
The sqntactic elements are
desc~ibed
as Tollows:
. /
Page
21-12
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