Fix double-precision floating point
src/sh4/sh4core.c src/sh4/sh4core.h
Fix P4 to include E000000
src/sh4/sh4mem.c
Add basic attempt at panning + proper volume
src/aica/aica.c src/aica/audio.c src/aica/audio.h
Fix LDM/STM instructions (yes, again, but for sure this time)
Add debug check - if PC leaves ram halt immediately
src/aica/armcore.c
Tweaks to timer to make sure it's actually a one-shot
src/aica/armcore.c
Set base buffer size to 1/10 second
src/aica/audio.c
Add 's3m' mode (for testing) and also headless mode
src/main.c
Fix nanos -> sample calculation
src/aica/aica.c
Fix nanos => samples conversion
src/aica/aica.c
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