Re: A89: when i say JUMP, you say WHEN?

To: assembly-89@lists.ticalc.org
Subject: Re: A89: when i say JUMP, you say WHEN?
From: JayEll64@aol.com
Date: Mon, 19 Feb 2001 00:11:37 EST
Reply-To: assembly-89@lists.ticalc.org

Here's the opcode for a JMP <ea>:

%0100111011<MODE (3 bits)><REGISTER (3 bits)>

Your addressing mode is a constant, if I remember correctly, so:

(xxx).W MODE = %111 REGISTER = %000
(xxx).L MODE = %111 REGISTER = %001

I haven't taken the time to learn M68K assembly yet, but I do know Z80 and I
understand what all that means, so it should be correct :)

I'll forward you personally an email from Scott Novek (I believe) on how to
obtain Motorolla's reference manuals (for free).

- JayEll

In a message dated 2/18/01 9:27:06 PM Mountain Standard Time,
newstome2001@yahoo.com writes:

I'm not sure that i was real clear, I need to know how the op-code is put
together for a jmp to address x...

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