What Is The Use Of Td Instruction In Sic Architecture ?

1.	What Is The Use Of Td Instruction In Sic Architecture ?
Answer» The test device (TD) instruction tests whether the ADDRESSED device is ready to send or receive a BYTE of data. The condition code is set to indicate the RESULT of this test. Setting of < MEANS the device is ready to send or receive, and = means the device is not ready. The test device (TD) instruction tests whether the addressed device is ready to send or receive a byte of data. The condition code is set to indicate the result of this test. Setting of < means the device is ready to send or receive, and = means the device is not ready.

Answer»

The test device (TD) instruction tests whether the ADDRESSED device is ready to send or receive a BYTE of data. The condition code is set to indicate the RESULT of this test. Setting of < MEANS the device is ready to send or receive, and = means the device is not ready.

The test device (TD) instruction tests whether the addressed device is ready to send or receive a byte of data. The condition code is set to indicate the result of this test. Setting of < means the device is ready to send or receive, and = means the device is not ready.

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