Cray CRAY-1 - Ijk Transmit (Ak) or Normalized Floating Point Constant to si

r-------------------------------------------------------------------,
, ,
: 071ijk Trans~it (Ak) or normalized floating point constant:
, ,
: to Si :
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L _____________________________________________________ ______________ ,
This instruction performs one of several functions depending on the
value of the
j designator. The functions are concerned with trans-
mitting information from an A register to an S register and with
generating frequently
used floating point constants.
071iOk
Transmit
(Ak) to
<: •
..... 1
with no sign extension
071i1k
Transmit (Ak)
to
<: •
~ .. 1
with sign extension
071i2k Transmit
(,o,k)
to Si as unnormalized
floating
point
number
071 i 3 k
Transmit
constant
48
0.75 x 2 to Si
071 i 4 k Transmit constant
0.5 to $i
071 i 5 k
Transmit constant
1.0
to Si
071 it k Transmit constant 2.0 to Si
071 i 7 k
Transmit constant
4.0 to
Si
When the j designator is 0, the 24-bit value in Ak is transmitted to
Si. The value is treated as an unsigned integer. The high-order bits
of Si are cleared.
When the j designator is 1, the 24-bit value in Ak is transmitted to
Si. The value is treated as a signed integer. The sign bit of Ak is
extended to the high order bit of Si.
When the j designator is 2, the 24-bit value in Ak is transmitted to
S; as an unnormalized floating point quantity. The result can then
be added to zero to normalize. For this instruction, the exponent in
bits 1 through 15 is set to 40060
8
,
The sign of the coefficient is
set according to the sign of Ak. If the sign bit of Ak is set, the
two's complement of Ak is entered into Si as the magnitude of the
coefficient and bit 0 of Si is set for the sign of the coefficient.
2240004
4-45
E