X-Hacker.org- TMS320C2x DSP - syntax direct [<label>] xor <dma>

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SYNTAX      DIRECT   [<LABEL>] XOR <dma>
            INDIRECT [<LABEL>] XOR {ind}[,<next ARP>]

OPERANDS    0 . dma . 127; 0 . next ARP . 7.

EXECUTION   (PC) + 1 . PC
            (ACC(15-0)).XOR.dma . ACC(15-0)
            (ACC(31-16)) . ACC(31-16)
            Not affected by SXM.

DESCRIPTION The lower half of the accumulator is exclusive-OR'ed with the
            contents of the addressed data memory location. The upper half
            of the accumulator is not affected by this instruction.

WORDS       1

ENCODING    15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
            +-----------------------------------------------+
            |0  1  0  0  1  1  0  0| 0| data memory address | DIRECT
            +-----------------------------------------------+

            15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
            +-----------------------------------------------+
            |0  1  0  0  1  1  0  0| 1| see indirect fields | INDIRECT
            +-----------------------------------------------+

CYCLES

            +------------------------------------------------+
            |    Cycle Timings for a Single Instruction      |
            |------------------------------------------------|
            | PI/DI | PI/DE | PE/DI | PE/DE  | PR/DI | PR/DE |
            |-------+-------+-------+--------+-------+-------|
      '20   |   1   |  2+d  |  1+p  | 2+d+p  |   -   |   -   |
            |-------+-------+-------+--------+-------+-------|
     'C25   |   1   |  2+d  |  1+p  | 2+d+p  |   1   |  2+d  |
            |------------------------------------------------|
            |    Cycle Timings for a Repeat Instruction      |
            |------------------------------------------------|
      '20   |   n   | 2n+nd |  n+p  | 2n+nd+p|   -   |   -   |
            |-------+-------+-------+--------+-------+-------|
     'C25   |   n   | 1+n+nd|  n+p  |1+n+nd+p|   n   |1+n+nd |
            +------------------------------------------------+



EXAMPLE     XOR   DAT127      (DP = 511)
            or
            XOR   *           If current auxiliary register contains
                              65535.

                       BEFORE                 AFTER

            dm65535     >F0F0     dm65535     >F0F0
              ACC X >12345678       ACC X >1234A688
                  C                     C

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