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X-Hacker.org- TMS320C2x DSP - syntax [<label>] bgz <pma>[,{ind}[,<next arp>]] http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]
SYNTAX      [<LABEL>] BGZ <pma>[,{ind}[,<next ARP>]]

OPERANDS    0 . pma . 65535; 0 . next ARP . 7.

EXECUTION   If (ACC) > 0:
            then pma . PC; else (PC) + 2 . PC
            Modify AR(ARP) and ARP as specified.

DESCRIPTION The current auxiliary register and ARP are modified as
            specified. Control passes to the designated program memory
            address (pma) if the contents of the accumulator are greater
            than zero; otherwise, control passes to the next instruction.
            Note that no AR or ARP modification occurs if nothing is
            specified in those fields. Pma can be either a symbolic or
            numeric address.

WORDS       2

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

CYCLES

            +----------------------------------------------------+
            |       Cycle Timings for a Single Instruction       |
            |----------------------------------------------------|
            |  PI/DI |  PI/DE |  PE/DI |  PE/DE  | PR/DI | PR/DE |
            |-----------------+------------------+-------+-------|
      '20   |2 (br int-to-int)| 2+p (int-to-ext) |   _   |   _   |
            | 2+p (ext-to-int)| 2+2p (ext-to-ext)|       |       |
            |----------------------------------------------------|
      'C25  | True Conditions:                                   |
            |----------------------------------------------------|
            |              Destination on-chip RAM:              |
            |----------------------------------------------------|
            |    2   |   2    |  2+2p  |  2+2p   |   2   |   2   |
            |----------------------------------------------------|
            |              Destination on-chip ROM:              |
            |----------------------------------------------------|
            |    3   |   3    |  3+2p  |  3+2p   |   3   |   3   |
            |----------------------------------------------------|
            |            Destination external memory:            |
            |----------------------------------------------------|
            |   3+p  |  3+p   |  3+3p  |  3+3p   |  3+p  |  3+p  |
            |----------------------------------------------------|
            |  False Condition:                                  |
            |----------------------------------------------------|
            |               Destination anywhere:                |
            |----------------------------------------------------|
            |    2   |    2   |  2+2p  |  2+2p   |   2   |   2   |
            |----------------------------------------------------|
            |       Cycle Timings for a Repeat Instruction       |
            |----------------------------------------------------|
      '20   |          not repeatable            |   -   |   -   |
            |----------------------------------------------------|
     'C25   |                     not repeatable                 |
            +----------------------------------------------------+



EXAMPLE     BGZ   PRG342      342 is loaded into the program counter if
                              the accumulator is greater than zero.

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