tests/language/examples/factorial.bas

10 N# = 5
20 RESULT# = 1
30 GOSUB 100
40 PRINT "FACTORIAL(5) IS " + RESULT#
50 QUIT
100 IF N# <= 1 THEN RETURN
110 RESULT# = RESULT# * N#
120 N# = N# - 1
130 GOSUB 100
140 RETURN
Check the reference corpus in, so the build stops needing the Go submodule All 41 .bas/.txt pairs copied byte for byte from basicinterpreter@d76162c into tests/reference/, plus the Commodore font into assets/fonts/ -- the two things that tied the build to deps/basicinterpret. Both were verified cmp-identical to the submodule copies. This reverses a decision that was deliberate and correct at the time: the corpus was driven in place because copying a submodule's corpus guarantees drift. Overruled on purpose -- the Go dependency is being deprecated, and a build that cannot run its acceptance suite without cloning the implementation it replaced is not finished. tests/reference/README.md records what the drift now costs and that those expectations are never edited. Checked rather than assumed: both configurations configure, build and pass from scratch with deps/basicinterpret moved out of the tree entirely. The submodule is kept as the behavioural spec, which is a real use. The font came with an open licence question; assets/fonts/PROVENANCE.md states it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Co-Authored-By: Andrew Kesterson <andrew@aklabs.net> 2026-07-31 12:35:40 -04:00			`10 N# = 5`
			`20 RESULT# = 1`
			`30 GOSUB 100`
			`40 PRINT "FACTORIAL(5) IS " + RESULT#`
			`50 QUIT`
			`100 IF N# <= 1 THEN RETURN`
			`110 RESULT# = RESULT# * N#`
			`120 N# = N# - 1`
			`130 GOSUB 100`
			`140 RETURN`