[A83] Interrupt Vector

To: assembly-83@lists.ticalc.org
Subject: [A83] Interrupt Vector
From: "Jeff Theusch" <telepath75@hotmail.com>
Date: Tue, 17 Dec 2002 16:56:16 -0600
Reply-To: assembly-83@lists.ticalc.org

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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Follow-Ups:

[A83] Re: Interrupt Vector

From: "Joe Pemberton" <joe@joepnet.com>

[A83] Re: Interrupt Vector

From: "David Phillips" <david@acz.org>