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INSTRUCTION SET
OUTL Pp,A Output Accumulator Data
to
Port
1
or
2
10011110ppl
This
is
a 2-cycle
instruction.
Data residing in the
accumulator
is transferred (written)
to
port
'p'
and
latched.
(Pp) .... (A)
p=1-2
Example: OUTLP: MOV A,R7
OUTL P2,A
MOV A,R6
OUTL P1,A
;MOVE
REG
7 CONTENTS TO ACC
;OUTPUT ACC CONTENTS TO PORT 2
;MOVE
REG
6 CONTENTS TO ACC
;OUTPUT ACC CONTENTS
TO
PORT 1
RAD Move Conversion Result Register
to
Accumlator
(8022 Only)
11000100001
This is a two cycle instruction. The contents
of
the AID conversion
result register are moved to the accumulator.
(A)
....
(CRR)
RET
Return
Without
PSW
Restore
11000100111
This is a 2-cycle instruction. The stack pointer
(PSW bits 0-2) is decremented. The program counter
is then restored from the stack.
PSW
bits 4-7 are
not restored.
(SP)
.... (SP)-1
(PC) ....
«SP»
RETI Return From Interrupt (8022 Only)
11001100111
This is a
two
cycle instruction. The stack pointer is decremented and
the program counter is restored from the stack.
Interrupt input logic is
re-enabled.
(SP)--
(SP)-1
(PC) .... «SP)
+1
·Mnemonics
copyright
Intel Corporation
1976.
4-29