UPD78F9177 Datasheet, PDF (20/56 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78F9177, 78F9177Y
6. INSTRUCTION SET OVERVIEW
This section lists the µPD78F9177 and µPD78F9177Y instruction set.
6.1 Conventions
6.1.1 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 the symbols, #, !, $, and [ ], are keywords
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 #,!, $, or [ ] 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 6-1. Operand Identifiers and Description Methods
Identifier
r
rp
sfr
saddr
saddrp
addr16
addr5
word
byte
bit
Description Method
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
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Data Sheet U14022EJ1V0DS00