Cray CRAY-1 - 0021 Xx Set Floating Point Mode Flag in M Register; 0022 Xx Clear Floating Point Mode Flag in M Register

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: 0021xx Set floating point mode flag in M register :
: 0022xx Clear fioating point mode flag in M register :
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These instructions set (0021xx) or clear (0022xx) the floating point
mode flag in the M register. They do not check the previous state of
the flag (there is no way of testing the flag).
When set, the floating point mode flag enables interrupts on floating
point overflow errors as described in Section 3.
Hold issue conditions
034 - 037 in process
Exchange in process
Ak reserved
Execution time
Instruction issue 1 CP
Special cases
None
2240004
4-13
E