- One-shot cold loader (asm/opl4_loader.asm, overlaid into plugin
page 5) uploads embedded PCM sample blocks into ZXM-MoonSound SRAM
and compacts the VGM stream in place, letting files over the normal
64-page megabuffer budget play back through the existing pipeline.
- instant_abort() was filling only one of the two ISR command buffers
with the shutdown chain; the chain (SILENCE_OPL + WAVE_OFF/TL +
CMD_ISR_DONE) doesn't fit in one buffer, so after the first
CMD_END_BUF the ISR swapped into stale data and never reached
CMD_ISR_DONE, hanging at the end of long tracks instead of
advancing to the next one. Now fills both buffers while frozen and
syncs update_buffer()'s own ready-tracking state.
- Switch to 14MHz before the SRAM upload (previously ran at whatever
speed WC's file I/O left active) and show "Loading..." for .vgz and
files >= 1MB, since the busy-waited upload takes several seconds.
- Confirmed on real hardware: long OPL4 tracks (previously stuck
looping at the end) now finish and advance normally, ESC exits
cleanly.
alex
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