DEXEC 13 (Remote I/O Status)
You can use this DEXEC call (request code 13) to obtain the status and type of a device identified by a logical unit number.
DEXEC(dest,code,cnwd,sta1[,sta2][,sta3][,sta4])
dest | |
| node where the call is executed. A value of |
| local node. Local execution will also be performed whenever |
| dest is equal to the local node address. |
code | |
cnwd | Control word containing the LU of the I/O device. |
sta1 | First status word. Device Table word 6 is returned here. |
sta2 | Second status word. Interface Table word 6 is returned here. |
sta3 | Third status word. If the Zbit in the control word is equal to 0, |
| driver parameter word 1 is returned here. If the Zbit is equal |
| to 1, the buffer address for return of driver information is |
| specified here. |
sta4 | Fourth status word. If the Zbit in the control word is equal to |
| 0, driver parameter word 2 is returned here. If the Zbit is |
| equal to 1, the buffer length for return of driver information is |
| specified here. When the Zbit is equal to 1, the sta4 length |
| specification must be less than or equal to 512 words. |
1110 DEXEC