Cray CRAY-1 - 042 Ijk Form 64 - Jk Bits of Ones Mask in si from Right 043 Ijk Form Jk Bits of Ones Mask in si from Left

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: 042ijk Form 64 - jk bits of one's mask in Si from right :
1 1
: 043ijk Form jk bits of one's mask in Si from left :
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The 042 instruction generates a mask of 64-jk ones from right to left
in Si. Thus, for example, if jk = 0, Si contains all one bits and if
jk = 77 8~ Si contains zeros in all but the lowest order bit.
The 043 instruction generates a mask of jk ones from left to right in
Si. Thus, for example, if jk = 0, Si contains all zeroed bits and if
jk = 77 , Si contains ones in all but the lowest order bit.
s
T~~se i~structions are ~xecuted ir t~e scalar 10ric~1 l!ni~.
Hold issue conditions
034 - 037 in process
Exchange in process
S register access conflict
Si reserved
Execution time
Instruction issue 1
CP
Si ready 1 CP
Special cases
None
2240004
4-34
E