Versions 22 and 23 have been important for Snowdrop OS because they introduced an assembler and debugger.
In version 22 I have created Snowdrop OS's x86 assembler, because of three reasons. First, I wanted to have a low-level programming platform to complement Snowdrop's high-level BASIC interpreter. Second, I wanted to have faster access to hardware when interfacing with the circuits I've created. Third, I had never created an assembler before, so I was curious.
In version 23, I have created a debugger to accompany the assembler. It is a machine-level debugger with features including: breakpoints, memory watch, view listing.
The debugger is small in size, at around 10kb. The main reason behind this is that it relies on assembler-generated listing files to display source code. This means that it does not need its own decoder to translate bytes to assembler mnemonics.
To find out more, visit the Snowdrop OS pages
If you use the materials on this page, or any other page on this web site, you do so at your own risk. They are provided "as is". No warranty is provided or implied. I neither guarantee that the materials will work, nor that they will not be harmful in any way.