IBM 7090 User Manual

I Time
Pri Op 14
J
L Time
SR(S-35)-+AD
(P-35) LO(D3)
2.12.15.1
AD(3-17)+AS
LO (D3)
3.06.16.1
,
AS(10-17)" SC
L2(D1)
2.11.78.1
No. of Conversions
in
SC
Yes
~r-----'---<~ No
~R(18-35)+AD MQ(S-5) +AD Develop Desired
(P-17) L9(D3) (12-17) L9(D3) Address
in Table
2.12.16.1
2.10.15.1
AD(3-17).AS
L9 (D3)
3.06.16.1
AS -+AR
All(D1)
3.06.18.1
I
End Op Ii I t1~ (~l~A I
2.09.49.1 Il2.12.70.1
6 Bit
Replacement
for MQ
FIGURE 5.3-72. CRQ - 0154
E Time
Shift MQ Lt
EO(D6)
2.12.42.1
Step SC
E6(D1)
2.11.79.1
SB ~SR
E7(Dl)
6 Shifts
1
Step
Yes
r-------_+_ i-< SC = 0 No
2.12.50.1 ~,
~ J ~
SR(S-5).MQ SR(18-35)-AD ""r-;-M;-:;:Q~(S;::-_.l;;5).-- .... -A~\C;::!1
(30-35)E11(Dl) (P-17)E9(D3) (J2-17)E9(D3) Develop Desired
2.10.15.1 2.12.16.1
AD(3-17) .... AS
E9 (D3)
3.06.16.1
2.10.15.1
12~;.~.,1
Address in Table
Bit TR 20
AD(3-17) ......
XRA Ell(D1)
2.12.70.1

IBM 7090 Specifications

General

Category	Mainframe Computer
Introduced	1959
Transistor-based	Yes
Word Length	36 bits
Add Time	4.8 microseconds
Memory	Core memory
Memory (words)	32, 768 words