parser-test.prg and parser-test.map link emit.s and parser.s, which grew in
221e0c5, 5489ae6 and c487511 after the baseline was recorded, so the suite
failed on hashes alone while all 43 parser fixtures passed. Regenerated with
-UpdateBaseline over source, lexer and parser; the source and lexer hashes are
unchanged, and a fresh run of all three matches.

em_reset cleared only one row of em_meth_label: ldx #$FF / dex / bpl exits
after the first store because $FE is negative. Method label ids from the count
pass survived into the emitting pass after fl_init had freed every flow label,
so a later fl_alloc could hand the same id to another label. The loop now
clears all 256 rows, and labels are stored as id + 1 so 0 means unassigned.

hello-test.s never cleared em_on. Since 5489ae6 added emitter BSS, em_on lands
on RAM that VICE's power-on pattern leaves non-zero, so the statement emitter
ran without print vectors and reported E227 at end program. The fixture now
clears em_on before parse_file, as every emitter caller must.

harness.tests.ps1 embedded quotes in arguments for the call operator, which
PowerShell 7.3+ escapes into the path; it now passes plain arguments and runs
under both Windows PowerShell 5.1 and PowerShell 7.

Calls now stage their arguments and push them in reverse so arg0 lands at
FP+2, each body gets a patched frame prologue when frames are requested, and
return leaves the frame with a byte or word result preserved. A new args
fixture proves the parameter and result path in x128.

Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>

The verifier proved the launcher path but never ran prepare-disk.ps1 itself,
so it now compares the injected n128c byte-for-byte with build/n128c.prg, and
the driver suite is part of the regression manifest.

Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>

Suites run from a manifest into fresh build directories with time limits,
captured logs, JSON results and SHA-256 comparisons; source, lexer and parser
artifacts are pinned, and self-tests cover timeout, failure signature and
changed-artifact detection.

Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>