84PCE:Syscalls:021D7C
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Contents
Synopsis
Hypothesized Official Name: SignExtendDE
Syscall Address: 021D7Ch
This was originally a broken call, and still is in OS 5.0.0.0089 (and others, perchance?) But after sending in information, TI did an amazing job and fixed this call.
It is known to work in OS 5.1.0.0110.
Inputs
DE - 16-bit signed value
Outputs
DE - 24-bit signed value
Destroys
- DEU
