Mnemonic
DPTS
DISABLE PERIPHERAL TRANSACTION
SERVER (PTS). Disables the peripheral
transaction server (PTS).
PTS Disable (PSW.2)
Z
—
EI
ENABLE INTERRUPTS. Enables interrupts
following the execution of the next statement.
Interrupt calls cannot occur immediately
following this instruction.
Interrupt Enable (PSW.1)
Z
—
EPTS
ENABLE PERIPHERAL TRANSACTION
SERVER (PTS). Enables the peripheral
transaction server (PTS).
PTS Enable (PSW.2)
Z
—
EXT
SIGN-EXTEND INTEGER INTO LONG-
INTEGER. Sign-extends the low-order word
of the operand throughout the high-order
word of the operand.
if DEST.15 = 1 then
(high word DEST)
else
(high word DEST)
end_if
Z
Table A-6. Instruction Set (Continued)
Operation
←
0
PSW Flag Settings
N
C
V
VT
ST
—
—
—
—
—
←
1
PSW Flag Settings
N
C
V
VT
ST
—
—
—
—
—
←
1
PSW Flag Settings
N
C
V
VT
ST
—
—
—
—
—
←
0FFFFH
←
0
PSW Flag Settings
N
C
V
VT
ST
0
0
—
—
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INSTRUCTION SET REFERENCE
Instruction Format
DPTS
(11101100)
EI
(11111011)
EPTS
(11101101)
EXT
lreg
(00000110) (lreg)
A-15