eZ80
®
CPU
User Manual
UM007714-0908 CPU Instruction Set
274
OUTI2
Output to I/O and Increment
Operation
({UU, BC[15:0]}) ← (HL)
B ← B – 1
C ← C+1
HL ← HL+1
Description
The CPU loads the contents of the memory location specified by the multibyte HL register
into CPU memory. The CPU next outputs this byte to I/O address {UU, BC[15:0]}. The
upper byte of the address bus, ADDR[23:16] is undefined for I/O addresses. The B regis-
ter decrements. The C and HL registers increment.
Condition Bits Affected
Attributes
S Not affected.
Z Set if B – 1 = 0; reset otherwise.
H Not affected.
P/V Not affected.
N Set if msb of data is logical 1; reset otherwise.
C Not affected.
Mnemonic Operand ADL Mode Cycle Opcode (hex)
OUTI2 —X 5ED, A4
OUTI2.S —1 652, ED, A4
OUTI2.L —0 649, ED, A4