RL78/G15 CHAPTER 22 INSTRUCTION SET
R01UH0959EJ0110 Rev.1.10 Page 694 of 765
Mar 7, 2023
22.1.2 Description of operation column
The operation when the instruction is executed is shown in the “Operation” column using the following symbols.
Table 22-2. Symbols in “Operation” Column
Symbol Function
A A register: 8-bit accumulator
X X register
B B register
C C register
D D register
E E register
H H register
L L register
ES ES register
CS CS register
AX AX register pair: 16-bit accumulator
BC BC register pair
DE DE register pair
HL HL register pair
PC Program counter
SP Stack pointer
PSW Program status word
CY Carry flag
AC Auxiliary carry flag
Z Zero flag
RBS Register bank select flag
IE Interrupt request enable flag
() Memory contents indicated by address or register contents in parentheses
X
H
, X
L
X
S
, X
H
, X
L
16-bit registers: X
H
= higher 8 bits, X
L
= lower 8 bits
20-bit registers: X
S
= (bits 19 to 16), X
H
= (bits 15 to 8), X
L
= (bits 7 to 0)
∧ Logical product (AND)
∨ Logical sum (OR)
∀ Exclusive logical sum (exclusive OR)
¯
Inverted data
addr5 16-bit immediate data (even addresses only in 0080H to 00BFH)
addr16 16-bit immediate data
addr20 20-bit immediate data
jdisp8 Signed 8-bit data (displacement value)
jdisp16 Signed 16-bit data (displacement value)
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