Hitachi AP1 - Page 108

HMCS46C,HMCS46CL--------------------------------------------------------
Group Mnemonic
Function
MNEI i M ~
i
VNEI i V
~
i
ANEM A
~
M
Compare Instruction BNEM B
~
M
ALEI i A
:s;::
i
ALEM A
~
M
BLEM B
~
M
RAM Bit Manipulation
SEM n
"1"
-.
M (n)
REM n
"0"
-.
M (n)
Instruction
TM n
Test
M (n)
BR a
Branch on Status 1
CAL a
Subroutine Jump on Status 1
ROM Address
LPU u
Load Program Counter Upper on Status
Instruction
TBR p Table Branch
RTN
Return from Subroutine
SEIE
"1"
-.
I/E
SEIFO
"1"
-.
IFO
SEIFl "1"
-.
IFl
SETF "1"
-.
TF
SECF "1"
-.
CF
REIE "0"
-.
I/E
REIFO
"0"
-.
IFO
REIFl
"0"
-.
IFl
Interrupt Instruction
RETF
"0"
-.
TF
RECF
"0"
-+
CF
TIO
Test INTo
Til
Test
INT,
TIFO
Test
IFO
TlFl
Test
IFl
TTF
Test
TF
LTI i
i
-.
Timer/Counter
LTA
A
-.
Timer/Counter
LAT
Timer/Counter ..... A
RTNI
Return Interrupt
"---
SED
~'1" ~
o (V)
RED
"0"
-.
o (V)
TO
Test
o (V)
SEOO n
"1" -.
o (n)
Input/Output
REDO n
"0"
-.
o (n)
Instruction
LAR p
R(p)
-+
A
LBR p
R(p) -+
B
LRA P
A
-.
R (p)
LRB p
B
-.
R (p)
P p
Pattern Generation
NOP
No Operation
[NOTE) 1. (XV) after a mnemonic code has four meanings as follows.
Mnemonic only
Mnemonic with X
Mnemonic with V
Mnemonic with XV
[Example) lAM
lAMX
lAMY
lAMXV
Instruction execution only
After instruction execution, X ++ SPX
After instruction execution, V ++ SPY
After instruction execution, X ++ SPX, V ++ SPY
M A
M A, X ++ SPX
M A, V ++ SPY
M A, X ++ SPX, V ++ Spy
Status
NZ
NZ
NZ
NZ
NB
NB
NB
M(n)
1
1
1
INTo
INT,
IFO
IFl
TF
O(V)
2. Status column shows the factor which brings the Status F/F "1" under judgement instruction or instruction accompanying the judgement.
NZ .... AlU Not Zero
C ..... AlU Overflow in Addition, that is, Carry
NB .... AlU Overflow in Subtraction, that is, No Borrow
Except above ....... Contents of the status column affects the Status F/F directly.
3. The Carry F/F (C(F/F)) is not always affected by executing the instruction which affects the Status F/F.
Instructions which affect the Carry F/F are eight as follows.
AMC SEC
SMC REC
DAA ROTl
DAS ROTR
4. All instructions except the pattern instruction (P) are executed in 1-cycle. The pattern instruction (P) is executed
in 2-cycye.
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