UPD78F9177 NEC, UPD78F9177 Datasheet - Page 20

• Manufacturer Part Number: UPD78F9177
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

6. INSTRUCTION SET OVERVIEW
6.1 Conventions
6.1.1 Operand identifiers and description methods
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 the symbols, #, !, $, and [ ], are keywords
and must be described as they are. Each symbol has the following meaning.
describe the #,!, $, or [ ] symbols.
parentheses in the table below, R0, R1, R2, etc.) can be used for description.
20
r
rp
sfr
saddr
saddrp
addr16
addr5
word
byte
bit
This section lists the PD78F9177 and PD78F9177Y instruction set.
Operands are described in the “Operand” column of each instruction in accordance with the description method of
In the case of immediate data, describe an appropriate numeric value or a label. When using a label, be sure to
For operand register identifiers, r and rp, either function names (X, A, C, etc.) or absolute names (names in
#: Immediate data specification
!:
Identifier
Absolute address specification
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
FE20H to FF1FH immediate data or label
FE20H to FF1FH immediate data or label (even address only)
0000H to FFFFH immediate data or label
(Only even addresses for 16-bit data transfer instructions)
0040H to 007FH immediate data or label (even address only)
16-bit immediate data or label
8-bit immediate data or label
3-bit immediate data or label
Table 6-1. Operand Identifiers and Description Methods
Data Sheet U14022EJ1V0DS00
$:
[ ]: Indirect address specification
Relative address specification
Description Method
PD78F9177, 78F9177Y