Re: A86: VAT

To: assembly-86@lists.ticalc.org
Subject: Re: A86: VAT
From: Tim Farrell <tercero@busprod.com>
Date: Thu, 09 Apr 1998 22:07:43 -0700
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Organization: BPS Internet
References: <000601bd6431$a8389ee0$284103cf@joemama.minot>
Reply-To: assembly-86@lists.ticalc.org


> btw does anyone have the compacted opcodes reference? not the hex opcodes
> but the codes that the ti86 compacts it to to save space?

the 86 doesn't compact them.  When you type them in as an "Asmprgm" it appears to the 
programmer as ASM code.  But the calc looks at it as the characters that make ASM code.

You type in this:

	Asmprgm
	$00,$C9		; nop, ret

This is what the calculator sees:

	Asmprgm
	$30,$30,$43,$39

These are the character font equivalents for the 0's and the C and the 9.

When the calc sees "Asmprgm", it executes a command that converts all of character bytes 
into actual opcodes.  Each character uses 1 bytes, but 2 characters are needed to 
describe each byte in Hexadecimal.  It cuts the size in half because to character bytes 
become one opcode byte.

Hope it helps

Tercero

References:

Re: A86: VAT

From: "Trey Jazz" <joemama@minot.com>

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