Cray CRAY-1 - Page 119

1--------------------------------------------------------------------1
1 I
: 040ijkm Transmit jkm to Si :
1 1
: 041ijkm Transmit complement of jkm to Si :
1 I
1 1
--------------------------------------------------------------------
These two-parcel instructions provide for entering immediate values
into
an S register.
The 040 instruction enters into Si a 64-bit value that is composed
of the 22-bit jkm field and 42 upper bits of zero.
The 041 instruction enters into Si a.64-bit value that is the complement
of a value formed by the 22-bit jkm field and 42 upper bits of zero. The
complement is formed by changing all one bits to zero and all zero bits
to one. Thus, for the 041 instruction, the upper 42 bits of Si are
set to one and the instruction provides for entering a negative value
into
Si.
Hold issue conditions
034 ~ 037 in process
Exchange in process
S register access conflict
Si reserved
Execution time
Instruction issue
Both parcels in same buffer 2 CPs
Both parcels in different buffers 4 CPs
Second parcel not in a buffer 13 CPs
Si ready 1 CP
Special cases
None
2240004
4-33
E