IBM 1620 1 Manual page 86

Appendix 0
Significance of P and
Q
Addresses
OP
Code
*01
*02
*03
*05
*06
*07
*OB
*09
11
21
12
22
13
23
14
24
15
25
16
26
17
27
*IB
*
2B
*19
Instruction
Floating Add
Floating Subtract
Floating Multiply
Floating Shift Left
Transmit Floating
Branch and Transmit
Floating
Floating Shift Right
Floating Divide
Add
(I~)
Add
Subtract (I)
Subtract
Multiply (I)
Multiply
Compare (I)
Compare
Transmit Digit (I)
Transmit Digit
Transmit Field (I)
Transmit Field
Branch and Transmit (I)
Branch and Transmit
Load Dividend (I)
Load Dividend
Divide (I)
*
Special Feature
( I ) Immediate
82
P Address
Location of units position of Exponent
of Augend and Result
Location of units position of Exponent
of Minuend and Result.
Location of units position of Exponent
of Multiplicand and Product.
Location of high-order position of resulting
field.
Location of units position of Exponent of
resulting field.
P-l: location of units position of field
to which Q field is transmitted.
P: location of next instruction executed.
Location of units position of field shifted.
Location of units position of Exponent of
Dividend and Quotient.
Location of units position of Augend and
Result.
Same as Code 11.
Location of units position of Minuend
and Result.
Same as Code 12.
Location of units position of Multiplicand.
Same as Code 13.
Location of units position of field compared
with Q field.
Same as Code 14.
Location to which digit is transmitted.
Same as Code 15.
Location to which units position of field is
transm i tted •
Sames as Code 16.
Same as Code 07.
Same as Code 07.
Location in Product Area to which units
position of Dividend is transmitted.
Same as Code lB.
Location in Product Area of units position of
Divisor for first subtraction.
Q
Address
Location of units position of Exponent of
Addend.
Location of units position of Exponent of
Subtrahend.
Location of units position of Exponent of
Multiplier.
Location of units position of Field shifted.
Location of units position of Exponent of
field transmitted.
Location of units position of Exponent of
field transmitted.
Location of units position of resulting field.
Locat-ion of units position of Exponent
of Divisor.
Q11 is units position of Addend.
Location of units position of Addend.
Q 11 is units position of Subtrahend.
Location of units position of Subtrahend.
Q 11 is units position of Multiplier.
Location of units position of Multiplier.
Q11 is units position of field compared with
P field.
Location of units position of field compared
with P field.
Q 11 is digit transmitted.
Location of digit transmitted.
Q 11 is units position of field transmitted.
Location of units position of field transmitted.
Q 11 is units position of field transmitted.
Same as Code 26.
Q 11 is units position of Dividend.
Location of units position of Dividend.
Q 11 is units position of Divisor.