How to resolve the algorithm Hello world/Newbie step by step in the 8080 Assembly programming language

Published on 12 May 2024 09:40 PM
#8080 assembly

How to resolve the algorithm Hello world/Newbie step by step in the 8080 Assembly programming language

Table of Contents

Problem Statement

Guide a new user of a language through the steps necessary to install the programming language and selection of a text editor if needed, to run the languages' example in the Hello world/Text task.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Hello world/Newbie step by step in the 8080 Assembly programming language

Source code in the 8080 programming language

; Hello World!
; Prints Hello, World! to stdout
BDOS    equ    5                     ; BDOS call entry
PRINT   equ    9                     ; BDOS string stdout subroutine

        org    100h                  ; (mostly) All CP/M programs start at 100h

start   lxi    d,message             ; load message pointer to DE register pair
        mvi    c,PRINT               ; set up BDOS call to do string print
        call   BDOS                  ; call BDOS routine
        ret                          ; pop back out into CP/M

message db     'Hello, World!','$'   ; message string, all CP/M strings have an EOL of '$'

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