IBM 7090 - Page 82

L Time 1 st Step
OBJECTIVES:
1. Adjust Characteristics
2.10.23.1
AC(Q-S) - AD
AO(D3)
2.13.24.1
l+AD (Q,P,l)
AO (D3)
2.13.27.1
AD(Q-S)_AC
A2 (D1)
2.13.31.1
Subtract Base 200S From Multiplicand Char
AD(l-S) - SR
M (Dl)
Zeros to SR (l-S)
2.13.04.1
MQ (1-S) -+ SR
A6(Dl)
2.13.12.1
AC(Q-S) -+ AD
A8(D3)
SR (l-S) _ MQ
A6(D1)
2.13.41.1
SR(1-S) _ AD
AS(D3)
Multiplier Char to SR, Zeros to MQ(l-S)
Addition of Multiplicand and Multiplier
Characteri stics
AD(Q-S) _AC
A 10(Dl)
Sum in Accumulator, Overflow or Underflow is
Possible
2.13.31.1
To L Time 2nd Step (Fig5.3-24C)
FIGURE 5.3-24B. UFM - 0260; FMP + 0260
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