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23.1 Legend
23.1.1 Operand identifiers and description methods
Operands are described in the "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
are described as they are. Each symbol has the following meaning.
• #
: Immediate data specification
• !
: Absolute 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.
Identifier
r
X (R0), A (R1), C (R2), B (R3), E (R4), D (R5), L (R6), H (R7)
rp
AX (RP0), BC (RP1), DE (RP2), HL (RP3)
sfr
Special function register symbol
sfrp
Special function register symbols (16-bit manipulatable register even addresses only)
saddr
FE20H to FF1FH Immediate data or labels
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saddrp
FE20H to FF1FH Immediate data or labels (even addresses only)
addr16
0000H to FFFFH Immediate data or labels
(Only even addresses for 16-bit data transfer instructions)
addr11
0800H to 0FFFH Immediate data or labels
addr5
0040H to 007FH Immediate data or labels (even addresses only)
word
16-bit immediate data or label
byte
8-bit immediate data or label
bit
3-bit immediate data or label
RBn
RB0 to RB3
Note
FFD0H to FFDFH are not addressable.
Remark For special-function register symbols, refer to Table 5-5 Special Function Register List.
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CHAPTER 23 INSTRUCTION SET
Table 23-1. Operand Identifiers and Description Methods
Note
• $
: Relative address specification
• [ ] : Indirect address specification
Description Method
Note
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