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

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

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

EXECUTION   (PC) + 1 . PC
            (ACC) + (dma) + (C) . ACC
            Affects OV and C; affected by OVM.

DESCRIPTION The contents of the addressed data memory location and the
            value of the carry bit are added to the accumulator. The carry
            bit is then affected in the normal manner.

            The ADDC instruction can be used in performing
            multiple-precision arithmetic.

WORDS       1

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

CYCLES

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



EXAMPLE     ADDC  DAT5        (DP = 8)
            or
            ADDC  *           If current auxiliary register contains 1029.

                 BEFORE             AFTER

            dm1029   >4       dm1029   >4
             ACC 1  >13        ACC 0  >18
                 C                 C

            ADDC  DAT5        (DP = 8)
            or
            ADDC  *           If current register contains 1029

                     BEFORE               AFTER

            dm1029       >0           dm1029 >0
            ACC 1 >FFFFFFFF            ACC 1 >0
                C                          C

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