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hkurt
Visitor II
April 15, 2004
Question

Decimal adjust

  • April 15, 2004
  • 4 replies
  • 1109 views
Posted on April 15, 2004 at 08:18

Decimal adjust

    This topic has been closed for replies.

    4 replies

    H
    hkurtAuthor
    Visitor II
    April 8, 2004
    Posted on April 08, 2004 at 16:46

    the ASM language of the MC05 and Z86 I have programed until now there is instruction for decimal adjust after SUB and ADD operations.

    How can I do this at the ST7 ?
    J
    jatin
    Visitor II
    April 12, 2004
    Posted on April 12, 2004 at 09:48

    There is no dedicated DAA (decimal adjust) instruction available in ST7. For this you will have to follow the standard algorithm used for hex to BCD conversion.

    H
    hkurtAuthor
    Visitor II
    April 13, 2004
    Posted on April 13, 2004 at 12:37

    I can't believe that. If I have to ADD/SUB 2 packed-BCD Bytes there must be a possibility together with the CC register to adjust the result to a packed BCD-Byte.

    On 2004-04-12 13:18, Jatin wrote:

    There is no dedicated DAA (decimal adjust) instruction available in ST7. For this you will have to follow the standard algorithm used for hex to BCD conversion.

    M
    marco32
    Visitor II
    April 15, 2004
    Posted on April 15, 2004 at 08:18

    Is the Half carry in the CC register an option?

    Whats happened with the dialog box???

    It wasn't me!

    [ This message was edited by: Moppie on 15-04-2004 11:49 ]

    [ This message was edited by: Moppie on 15-04-2004 11:50 ]

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