UPD789304 Datasheet, PDF (31/64 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD789304, 789306, 789314, 789316
10.1.2 Description of “Operation” column
A:
X:
B:
C:
D:
E:
H:
L:
AX:
BC:
DE:
HL:
PC:
SP:
PSW:
CY:
AC:
Z:
IE:
NMIS:
( ):
XH, XL:
∧:
∨:
∨:
_:
addr16:
jdisp8:
A register; 8-bit accumulator
X register
B register
C register
D register
E register
H register
L register
AX register pair; 16-bit accumulator
BC register pair
DE register pair
HL register pair
Program counter
Stack pointer
Program status word
Carry flag
Auxiliary carry flag
Zero flag
Interrupt request enable flag
Flag indicating non-maskable interrupt servicing in progress
Memory contents indicated by address or register contents in parenthesis
Higher 8 bits and lower 8 bits of 16-bit register
Logical product (AND)
Logical sum (OR)
Exclusive logical sum (exclusive OR)
Inverted data
16-bit immediate data or label
Signed 8-bit data (displacement value)
10.1.3 Description of “Flag” column
(Blank):
0:
1:
×:
R:
Unchanged
Cleared to 0
Set to 1
Set/cleared according to the result
Previously saved value is restored
Data Sheet U14384EJ1V0DS
31