eZ80
®
CPU
User Manual
UM007714-0908 CPU Instruction Set
91
ADD A, n
ADD without Carry
Operation
A ← A+n
Description
The 8-bit immediate value
n
is added to the contents of the accumulator, A. The result is
stored in the accumulator.
Condition Bits Affected
Attributes
S Set if result is negative; reset otherwise.
Z Set if result is 0; reset otherwise.
H Set if carry from bit 3; reset otherwise.
P/V Set if overflow; reset otherwise.
N Reset.
C Set if carry from bit 7; reset otherwise.
Mnemonic Operand ADL Mode Cycle Opcode (hex)
ADD A,n X2C6, nn
To Next Page
Loading...