IBM 7090 Instruction-Reference page 77

(To End Op)
FP Shift Lt
2.13.42.1
Sh AC(l0-35)
Lt Every Clock
Time
2.12.34.1
5th Step
L Time
2.10.34.1
AC(9)
=0
Sh MQ(2-35)
Lt Every Clock
Time
2.13.42.1
= 1
OBJECTIVES:
1. Normalize
MQ(9) -AC(35
Every Clock
Time
2.13.42.1
Step SC Every
Clock Time
2.13.71.1
Turn on FP
Tgr A7(Dl)
AC(Q-8)-AD
5th Step L
Ones-AD(Q,
P, 1,2)
SC(l2-17)--AD
5th Step L (3-8)
(SC Contains 2's Complement
of Number of Shifts Required to
Normalize, AC Underflow is
Possible. )
2.10.29.1
2.13.24.1 2.13.27.1
AD(Q-8)-AC
Al1(D1)
2.13.31.1
FP End Op
2.10.35.1
I Time OBJECTIVES:
Next Instruction 1. Compute MQ Char.
2. Set Acc(s) to MQ(s)
3. Set MQ Char. if Ace or MQ
Fraction are
f
0
3.04.15.1
AC(S)-MQ(S)
12 (D1)
2.13.91.1
2
AD(I-8)-SR
12 (D1)
2.13.04.1
No
On, or 9
Carry Of
Yes (Ace or MQ Frac.
f
0)
AC(Q-8)-AD
10 (D3)
l-AD(Q,P,
1,2,3,6,8)
10 (D3)
(2's Complement of 2710;
Underflow is Possible)
SR(I-8)-MQ
13 (Dl)
2.13 2.13.27.1
2.13.41.1
t~
__________________________
~
I
FIGURE 5.3-23E. FAD +0300
76