Cray CRAY-1 - 033 Ijk Transmit I;O Status to Ai

~--------------------------------------------------------------------,
I I
: 033ijk Transmit I/O status to Ai :
I I
I I
--------------------------------------------------------------------_.
This instruction enters channel status information into Ai. The j
and k designators and the contents of Aj define the desired information.
033iOx
Channel number of highest priority interrupt request
to Ai
033ijO
033ij1
Current address of channel (Aj) to Ai
Error flag of channel (Aj) to Ai
The channel number of the highest priority interrupt request is entered
into
Ai when the j designator is zero. The contents of Aj specifies a
channel number when the j designator is nonzero. The value of the
current address
(CA) register for the channel is entered into Ai when
the k designator is an even number. The error flag for the channel is
entered into the low order bit of Ai when the k designator is an odd
number. The high-order bits of Ai are cleared. The error flag can be
cleared only in monitor mode using the 0012 instruction.
The 033 instruction does not interfere with channel operation and is
not protected from user execution.
Hold issue conditions
034 - 037 in process
Exchange in process
A
register access conflict
Ai reserved
Aj reserved
Execution time
Instruction issue 1
CP
Ai ready 4 CPs
2240004
4-29
E