IBM 7090 - Page 88

FP Shift Rt
El0 (01)
2.13.42.1
SR(9-35)+AO
AO (03)
2.13.21.1
~
1
I Time
Pri Op 24
E
Time
33 -SC
E3
8
(01)
2.11.78.1
Reset MQ (S,
1-35) E6(01)
2.13.95.1
SB-SR
E7 01
2.12.50.1
Sh AC (9-34)
Rt El0(01)
2.12.33.1
L Time
1st Step
2.10.41.1
Comp AC(9-35)
-.AO AO (03)
2.13.22.1
Turn On
FP Tgr A3(01)
2
10.29.1
OBJECTIVES:
1. 33
8
to Shift Counter
2. Divisor to SR
3. Prepare for Divide Cheek
Test
by Halving AC Frae
(Divisor Char and Fraction
now
in SR)
Sh MQ (1-34)
Rt El0 (01)
2.12.43.1
OBJECTIVES:
AC(35)
-MQ
(9) ElO (01)
2.13.42.1
1. ~ivide Cheek Test
2. Set MQ Sign
3. End Op if AC Frae Equal s Zero
4. Char Oiff to AC if FP Tgr is on
I yeS~dder
, 9 Carry
.~ No
/T urn o~ No (AC > SR)
<..... Sol 9 Carry;>
2.10.37.1
Turn On
T2 Tgr A3 (01)
2.10.38.1
Turn on ~ivide
Chk Tgr A3(01)
and
Tl Tgr
2.10.53.1
L- ____ ~ ______________________________ ~
FP Shift Lt
A3(01)
2.13.42.1
SR
and AC Signs
Unlike
Set MQ(s)
Minus A3(01)
2.13.91.1
Sh AC(lo-35)
Lt A3(01)
2.12.34.1
-
Sh M~(2-35)
Lt A3(01)
2.12.42.1
Alike
MQ(9)-AC
(35) A3 (01)
2.13.42.1
+
•
SR(I-8) -AD
Comp AC (Q-35)
Carry- AD
~
M (03)
AD M(03)
(35) M(03)
9 Carry
2.13.21.1
2.13.22.1
2.13.27.1
+
(Partial Char Oiffi
Quotient Overflow or
Underflow
is Possible)
+
Yes
Turn on Col
9 Carry Tgr
2.10.37.1
~
P Off
Trigger
On
AD(Q-8)+AC
A6 (01)
2.13.31.1
To Fig 5.3-26B
I
FIGURE 5.3-26A. FOH + 0240
87
~
Reset Col 9
Carry
AS (01 )