84PCE:Syscalls:021D80
From WikiTI
Contents
Synopsis
Hypothesized Official Name: SignExtendHL
Syscall Address: 021D80h
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
HL - 16-bit signed value
Outputs
HL - 24-bit signed value
Destroys
- HLU
