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This chapter lists the instruction set of the
the operation and machine language (instruction code) of each instruction, refer to 78K/0S Series Instructions
User's Manual (U11047E).
19.1 Operation
19.1.1 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 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 functional names (X, A, C, etc.) or absolute names (names in
parenthesis 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
saddr
FE20H to FF1FH Immediate data or labels
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)
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
Remark
See Table 3-4 Special Function Register List for symbols of special function registers.
CHAPTER 19 INSTRUCTION SET
µ
PD789426, 789436, 789446, and 789456 Subseries. For the details of
• $:
• [ ]: Indirect address specification
Table 19-1. Operand Identifiers and Description Methods
User's Manual U15075EJ2V1UD
Relative address specification
Description Method
305
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