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Index > Main > How come AX does not increment?

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FlitTear



Joined: 19 Feb 2009
Posts: 6
FlitTear
I'm new here in the forum so i guess i should say Hello first Very Happy . Also i'm new to asm.

Okay. Here's the problem ax does not seem to increment here
Code:
macro drawVLine xCoord,yCoord, dist, pColor {
      local pangloop
      push ax
      push cx

      mov ax,yCoord
      mov cx,dist
      pangloop:
        plotPixel xCoord,ax,pColor
        inc ax
        dec cx
        cmp cx,0
        jne pangloop
      pop cx
      pop ax
}    


but after i've change ax to bx it incremented. I could say that it incremented because i could see a horizontal in mode 13h. But for ax i only see a pixel.

Is this a bug or there just something wrong with my code?
Post 19 Feb 2009, 16:12
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17338
Location: In your JS exploiting you and your system
revolution
I would expect that the "plotPixel" macro is using AX for something and changing the value.
Post 19 Feb 2009, 17:41
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FlitTear



Joined: 19 Feb 2009
Posts: 6
FlitTear
:shock:Aw! Your right i used ax on the plotPixel. By the way thanks for the reply. I think i should avoid making macros that calls another macro.
Post 19 Feb 2009, 18:18
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