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cpm_assembler_sample

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cpm_assembler_sample [2014/11/24 21:24] (current)
admin created
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 +{{tag>[altair cpm assembler]}}
 +~~TOC~~
 +=====CP/M Assembler 2.0 sample=====
 +//Sample from: CP/M MAC MACRO ASSEMBLER - LANGUAGE MANUAL AND APPLICATIONS GUIDE//
  
 +<code>
 + org 0100h ;transient program area
 +bdos equ 0005h ;bdos entry point
 +wchar equ 2 ;write character function
 +
 +;enter with ccp's return address in the stack
 +;write a single character (?) and return
 + mvi C,wchar ;write character function
 + mvi e,'?' ;character to write
 + call bdos ;write the character
 + ret ;return to the ccp
 + end 100h ;start address is 100h</code>
cpm_assembler_sample.txt ยท Last modified: 2014/11/24 21:24 by admin