Source-level debugging

Source-level debugging has its own section, The Source Debugger:

• A first session
• Building programs with z88dk
• Dot commands
• sjasmplus and Boriel ZX Basic
• Loading a source map, and finding the files
• Breakpoints, steps and running to a line
• Banked code, and which memory a line is in
• In the Source tab: names, watches, coverage and colours
• Scripts and remote debuggers
• Limits and troubleshooting