Board:   [DoveNet] Programming
Subject: DOS mutex
From:    Jcurtis
Date:    Wed Jun 04, 2025 18:36

  Re: DOS mutex
  By: Jcurtis to ALL on Wed Jun 04 2025 10:58 am

 > If anyone has a better trick

Looks like something was lost along the way:

int w = data;

should be

int *w = data;

The pointer indirection is what makes the [bx] two-instruction sequence necessary. If "w" was a regular variable, one asm instruction is enough.
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