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NNA impl

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This commit is contained in:
minjaesong
2026-05-02 03:16:47 +09:00
parent f295223f15
commit f84d317f95
4 changed files with 261 additions and 22 deletions
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9
it2taud.py
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@@ -25,8 +25,9 @@ Effect support:
A-Z dispatch per TAUD_NOTE_EFFECTS.md. IT-specific: Cxx is binary
(not BCD like ST3). V scales by ×2 (IT 0-128 → Taud 0-255). X is
the full 8-bit IT pan. Y panbrello nibble-repeats. Z (MIDI macro)
dropped. S6x tick-delay dropped. SAx high-offset dropped. S7x NNA
toggles dropped. Vol-column pitch-slide / tone-porta / vibrato sub-
dropped. S6x tick-delay dropped. SAx high-offset dropped. S7x NNA /
past-note / envelope toggles forwarded directly (IT sub-codes match
Taud one-to-one). Vol-column pitch-slide / tone-porta / vibrato sub-
commands forwarded to main effect slot when empty; dropped otherwise.
Per-effect private memory cohorts resolved eagerly (D/K/L share;
E/F optionally linked with G per flag bit 5).
@@ -879,7 +880,9 @@ def encode_effect_it(cmd: int, arg: int, ch: int = 0, row: int = 0,
vprint(f" dropped S6{val:X} (tick delay) at ch{ch} row{row}")
return (TOP_NONE, 0, None, None)
if sub == 0x7:
return (TOP_NONE, 0, None, None) # NNA/envelope — drop silently
# NNA / past-note / envelope on-off — IT S7x maps directly to Taud S $7x00
# (same sub-code table). No payload to translate.
return (TOP_S, 0x7000 | (val << 8), None, None)
if sub == 0x9:
return (TOP_NONE, 0, None, None) # sound control — drop silently
if sub == 0xA: