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File:Motorola 6800 Assembly Language.png

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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) and 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
Soorce Ain wirk
Author Swtpc6800 en:User:Swtpc6800 Michael Holley
Other versions
  • 6802 MPU Proto Board
    6802 MPU Proto Board

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current13:02, 1 Juin 2023Thumbnail fer version aes o 13:02, 1 Juin 20231,013 × 1,613 (129 KB)PhreneticcRecompress the original file with FileOptimizer in lossless compression mode.
01:06, 21 Apryle 2012Thumbnail fer version aes o 01:06, 21 Apryle 20121,013 × 1,613 (141 KB)MahahahaneapneapCompressed
02:48, 30 Mey 2011Thumbnail fer version aes o 02:48, 30 Mey 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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