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Thread: Simple math

  1. Dec 20th, 2000, 11:41 PM #1
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    I have just got the hour using function 2c of int 21h, and the hour is in ch. Now what i want to do is find out if the hour is above 12, and if it is, subtract twelve from it, any ideas on how to do that?
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  2. Jan 1st, 2001, 11:17 AM #2
    itay222
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    what am i missing here?

    cmp ch, 12
    jb dontsub (or jl... it has been a long time)
    sub ch, 12
    dontsub:
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  3. Jan 29th, 2001, 10:32 AM #3
    Cahlel
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    I'm pretty sure that they both work, JB and JL that is
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    though it costs all you have, get understanding.
    Proverbs 4:7
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