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- . - end
- , - jump/loop label
- a - add
- b - branch
- c - call
- d - decrement
- f - function
- i - increment
- j - jump to next label or end
- l - loop to previous label
- m - multiply
- n - next
- o - output
- p - previous
- r - read
- s - subtract
- t - top
- w - write
- x - stack
- y - pop
- z - zero