furnace/papers/export-tech.md

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# ROM export technical details
## instrument data
TODO
## macro data
read length, loop and then release (1 byte).
if it is a 2-byte macro, read a dummy byte.
then read data.
## binary command stream
read channel, command and values.
if channel is 80 or higher, then it is a special command:
```
fb xx xx xx xx: set tick rate
fc xx xx: wait xxxx ticks
fd xx: wait xx ticks
fe: wait one tick
ff: stop
```