Re: A89: Re: A92: Re: Quitting ASM or not -- please answer these q
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Re: A89: Re: A92: Re: Quitting ASM or not -- please answer these q
Isn't the y-value pushed first? Followed by the x-value? So then the function reads the values in
order...
-Miles Raymond
-----Original Message-----
From: Nathan Mueller <nlmueller@students.wisc.edu>
To: assembly-89@lists.ticalc.org <assembly-89@lists.ticalc.org>
Date: Sunday, December 06, 1998 12:58 PM
Subject: Re: A89: Re: A92: Re: Quitting ASM or not -- please answer these q
>>In a message dated 12/6/98 12:26:33 PM Eastern Standard Time,
>>don.barnes@wmich.edu writes:
>>
>>> >tios.h has NO documentation either in .html format or in the .h file.
>>>
>>> Try looking in ROMFUNC.HTM.
>>>
>>> -Don
>>
>>here's a good example of the documentation in Romfunc.htm:
>>> void tios::DrawTo(WORD x,WORD y)
>>> Draws a line from the graphics cursor to (x,y), moving the graphics
>>> cursor to the new position.
>>it doesn't say what registers you have to put data into for x and y!!!
>
>I think this was just discussed. Since the ROM calls use C++ calling
>conventions, the operands are popped on the stack from right to left (it
>may be left to right, I always forget).
>
>Therefor, for the tios::DrawTo(x,y) you would push x onto the system stack,
>then y. REGISTERS ARE NOT USED.
>
> --Nate
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