C64-dev/newLang/demo/README.md

Write-and-check demo

Shows the Nova128 workflow as far as it exists today: a program is typed into the Vim clone on the C64, saved to disk, and checked on the C128 by the compiler front end. No code is generated yet (epic E04), so nothing runs.

pwsh -File scripts/demo-write-check.ps1                  # good.n8 and bad.n8
pwsh -File scripts/demo-write-check.ps1 -Programs bad.n8

File	Purpose
good.n8	Valid program: interface, class with private field, init, interface call
bad.n8	Four errors: init with a result, destroy with a parameter, private field used from the program, undeclared name
n8check.s	DEMO driver (not N128C): asks for a file name, runs source reader, lexer, names, and parser, shows diagnostics, writes NAME.ERR

The script works on build/demo/demo.d81, a fresh copy of vim/work.d81 (the original is never written). x64sc and x128 run one after the other, never together. Demo sources must be lowercase with no quotes or backslashes, because they are typed through VICE's -keybuf.

Outputs in build/demo/: NAME-vim.png (the editor after :w), NAME-check.png (the C128 screen), NAME.seq (the file Vim wrote), and NAME.err.txt (the error file, when there are errors).