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 |
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Licensing
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I, the copyright holder of this work, release this work into the
public domain
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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