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File:Motorola 6800 Assembly Language.png

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Summary

Description

An assembly language listing for a Motorola 6800 8-bit microprocessor. This is a page from a "Monitor" program that communicates to a serial terminal connected to a MC6850 Asynchronous Communications Interface Adapter (ACIA). The routines here initialize the ACIA (INITA), read an ASCII character (INCH) an6800d read a hexadecimal digit (INHEX).

The first line of the INCH routine is located at hexadecimal memory address C010 and has the label INCH in the first text column. The instruction "LDA A ACIA" is a load accumulator A (opcode B6) from location 8004. (The symbol ACIA is defined as 8004 on a previous page.)

This program was used in a single board Motorola MC6802 system that was designed and built as a university project in 1980 by Michael Holley.
Date
Source Own work
Author Swtpc6800 en:User:Swtpc6800 Michael Holley
Other versions
  • 6802 MPU Proto Board
    6802 MPU Proto Board

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Brian Chandler Luckham

Captions

Assembly code

Items portrayed in this file

depicts

assembly language

machine code

inception

14 September 1980

media type

image/png

File history

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Date/TimeThumbnailDimensionsUserComment
current13:02, 1 June 2023Thumbnail for version as of 13:02, 1 June 20231,013 × 1,613 (129 KB)PhreneticcRecompress the original file with FileOptimizer in lossless compression mode.
01:06, 21 April 2012Thumbnail for version as of 01:06, 21 April 20121,013 × 1,613 (141 KB)MahahahaneapneapCompressed
02:48, 30 May 2011Thumbnail for version as of 02:48, 30 May 20111,013 × 1,613 (322 KB)Swtpc6800== {{int:filedesc}} == {{Information |Description= An assembly language listing for a Motorola 6800 microprocessor. This is a page from a "Monitor" program that communicates to a serial terminal connected to a MC6850 Asynchronous Communications Interface

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