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REF
IDENTIFIER
destination
source
source-table
target
short-label
accumulator
pbrt
source-string
dest-string
count
interrupt-type
optional-pop-value
external-opcode
above-below
greater-less
REFERENCES
REF
FOR
INSTRUCTION
SET
Key
to
following Instruction Set Reference Pages
USED
IN
data transfer,
bit
manipulation
data transfer,
arithmetic,
bit
manipulation
XLAT
JMP, CALL
cond. transfer,
iteration
control
IN, OUT
IN, OUT
string ops.
string ops.
shifts, rotates
INT
RET
ESC
conditional jumps
conditional jumps
EXPLANATION
A register
or
memory location that may contain data
operated on
by.
the instruction, and which receives (is
replaced by) the result of the operation.
A register, memory
location
or
immediate value that is
used in the operation, but is not
altered by the
instruction.
Name of memory
translation table addressed by
register
BX.
A label to which control is to be transferred directly,
or
a register
or
memory location whose content is the
address of the
location to which control is to be
transferred
indirectly. .
A
label to which control is to
be
conditionally
transferred; must lie within -128 to +127 bytes
of
the
first byte of the next instruction.
Register
AX
for word transfers, AL for bytes.
An
1/0 port number; specified
as
an
immediate value
of
0-255,
or
register
DX
(which contains port
number
in
range
0-64k).
Name of a string in memory that is addressed by
register
SI;
used only to identify string
as
byte
or
word
and
specify segment override, if any. This string is
used
in
the operation, but is not altered.
Name of string in memory that is addressed by
register
DI;
used
only.to
identify string as byte
or
word. This
string receives (is
replaced by) the result of the
operation.
Specifies number of bits to shift
or
rotate; written as
immediate
value 1
or
register CL (which contains the
count in the range
0-255).
Immediate value of
0-255
identifying interrupt
pointer
number.
Number of bytes
(0-64k,
ordinarily
an
even number) to
discard from stack.
Immediate value
(0-63)
that is encoded
in
the instruction
for use by
an
external processor.
Above
and
below refer to the relationship of two unsigned
values.
Greater
and
less refer
to
the relationship of two signed
values.
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