Re: A86: TI-86 VAT
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Re: A86: TI-86 VAT
>>Hi guys,
>>
>>If some of the gurus in here get a chance, I'd love having it checked
>>over for technical accuracy. Some of the info is basic... but hell,
>>I started z80 programming two days ago.
>>
>Looks great! A couple of nitpicky little things (but then, I'm a
>perfectionist). The VAT can never overflow pg. 7. In the variable routines
>I've looked at, that causes a memory error. To get the variable size, don't
>bother with _load_ram_ahl, just use _get_word_ahl ($521d) to get the size
>in de. Also, if you want the variable size in bytes, there's a ROM routine
>to do that. You know, because the size word at the start of the variable
>isn't the size in bytes for a bunch of the variable types.
How can the use of _get_word_ahl allow you to find the variable data size of
the VAT? I didnt know the VAT contained
information that contained the size of a variable
>I call the routine _get_var_size. It's at $477f.
>Input: a=type, bhl=var data ptr
>Output: de=size (in bytes), ahl=var data ptr.
This call would work great to implement in a shell, you can tell how many
bytes the program uses
Cooooooolness
Later,
Matt
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