Bent Line Mode

Bent Line Mode is one of the increase modes for controlling gain. Figure 3-7-4 of the official Nintendo documentation has a graph of the inverted exponential decay function that bent line mode is trying to approximate [1], but there is a typo in the formula shown that generates that graph. The formula as it appears in the documentation is:

1 - ke^t

but the exponent is missing a minus sign.

References

• [1] https://archive.org/details/SNESDevManual/book1/page/n170