[A83] Re: Interrupt Vector

To: <assembly-83@lists.ticalc.org>
Subject: [A83] Re: Interrupt Vector
From: "Joe Pemberton" <joe@joepnet.com>
Date: Tue, 17 Dec 2002 15:35:11 -0800
References: <F161A4redr97raifcxY000057ed@hotmail.com>
Reply-To: assembly-83@lists.ticalc.org


Yea, you'd think so.  But it seems to crash.


> After reading a Z80 online manual, I have found that the address of the
Mode
> 2 interrupt vector is determined by the following:
>
> Bit 15 - 8: I Register
> Bit  7 - 1: Perhipheral (assumed to be random)
> Bit      0: ALWAYS 0
>
> This means that the table only has to be 256 bytes, not 257, and that the
> interrupt vector can point to anywhere, not just to where the most and
least
> significant bytes are the same.  This is contrary to many of the tutorials
I
> have read about the TI-83.  Can anyone confirm or disprove this?
>
> Jeff
>
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References:

[A83] Interrupt Vector

From: "Jeff Theusch" <telepath75@hotmail.com>