Re: HELP with ASM programming of TI-83
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> erabrow@xvnews.unconfigured.domain (Browall Kenneth) writes:
>
> Hello again!
>
> Some days ago I asked a question about how to use the
> link port and unfortunatly I didn't get abny answer :-(
> I the nobody out there with some ASM experiance on the
> TI-83 who can help me? Please!
>
>
>
> The only question I have is:
> On what address is _IO_EXEC located?
> ====================================
>
>
> The rest below is a copy of my previous posting just to
> explain my needs.
>
>
> I am trying to use the link port of my TI-83 from assembler.
> I have read the page http://www.ti.com/calc/docs/83asmlnk.htm,
> but have problems understanding some parts. In the second part
> it is said that a value is stored at ASM_IND_CALL. Is that the
> different values of ASM_IND_VALUE like 11d, 19d, 20d and 22d?
> After that you are suposed to call _IO_EXEC, but I can't find
> the adress for that in ti83asm.inc.
>
> Where can I find it???
>
> My understanding is that what I have to do is something like this
> to send a byte:
>
> _IO_EXEC equ ?????? ; Where to call????
> LD A, 30h ; Load the value to send in Acc
> LD B, 11d ; Indicate that Acc is to be sent
> LD (ASM_IND_CALL), B ; Store
> CALL _IO_EXEC ; Send it!
>
> Is this correct understood?
>
> If it is, can you please tell me the value of _IO_EXEC
> or where I can find more info.
>
> Best regards,
> Kenneth
>>>>
You must have missed my follow-up posting.
I suggested you send e-mail to asm-83@ti.com
and inform TI of their oversight. You will probably
get an informative reply in a few days.
Harry
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