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A-15
INSTRUCTION SET REFERENCE
DPTS DISABLE PERIPHERAL TRANSACTION
SERVER (PTS). Disables the peripheral
transaction server (PTS).
PTS Disable (PSW.2)
← 0
DPTS
(11101100)
PSW Flag Settings
ZNCVVTST
——————
EI ENABLE INTERRUPTS. Enables interrupts
following the execution of the next statement.
Interrupt calls cannot occur immediately
following this instruction.
Interrupt Enable (PSW.1) ← 1
EI
(11111011)
PSW Flag Settings
ZNCVVTST
——————
EPTS ENABLE PERIPHERAL TRANSACTION
SERVER (PTS). Enables the peripheral
transaction server (PTS).
PTS Enable (PSW.2)
← 1
EPTS
(11101101)
PSW Flag Settings
ZNCVVTST
——————
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)
← 0FFFFH
else
(high word DEST)
← 0
end_if
EXT lreg
(00000110) (lreg)
PSW Flag Settings
ZNCVVTST
✓✓00——
Table A-6. Instruction Set (Continued)
Mnemonic Operation Instruction Format