
413
μPD780948, μPD78F0948, μPD780949, μPD78F0949
26.1
Legends Used in Operation List
26.1.1 Operand identifiers and description methods
Operands are described in “Operand” column of each instruction in accordance with the description method
of the instruction operand identifier (refer to the assembler specifications for detail). When there are two
or more description methods, select one of them. Alphabetic letters in capitals and symbols, #, !, $ and
[ ] are key words and must be described as they are. Each symbol has the following meaning.
# : Immediate data specification
!
: Absolute address specification
$ : Relative address specification
[ ] : Indirect address specification
In the case of immediate data, describe an appropriate numeric value or a label. When using a label,
be sure to describe the #, !, $, and [ ] symbols.
For operand register identifiers, r and rp, either function names (X, A, C, etc.) or absolute names (names
in parentheses in the table below, R0, R1, R2, etc.) can be used for description.
Table 26-1: Operand Identifiers and Description Methods
Identifier
Description Method
r
rp
sfr
sfrp
X (R0), A (R1), C (R2), B (R3), E (R4), D (R5), L (R6), H (R7),
AX (RP0), BC (RP1), DE (RP2), HL (RP3)
Special-function register symbol
Note
Special-function register symbol (16-bit manipulatable register even addresses only)
Note
saddr
saddrp
FE20H-FF1FH Immediate data or labels
FE20H-FF1FH Immediate data or labels (even address only)
addr16
0000H-FFFFH Immediate data or labels
(Only even addresses for 16-bit data transfer instructions)
0800H-0FFFH Immediate data or labels
0040H-007FH Immediate data or labels (even address only)
addr11
addr5
word
byte
bit
16-bit immediate data or label
8-bit immediate data or label
3-bit immediate data or label
RBn
RB0 to RB3
Note:
Addresses from FFD0H to FFDFH cannot be accessed with these operands.
Remark:
For special-function register symbols, refer to "Table 3-3: Special-Function Register List".