Difference between revisions of "84PCE:Syscalls:021D7C"
From WikiTI
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[[Category:84PCE:Syscalls:By Address|021D7C - SignExtendDE]] | [[Category:84PCE:Syscalls:By Address|021D7C - SignExtendDE]] | ||
== Synopsis == | == Synopsis == | ||
| − | '''Hypothesized Official Name:''' | + | '''Hypothesized Official Name:''' SignExtendDE |
'''Syscall Address:''' 021D7Ch | '''Syscall Address:''' 021D7Ch | ||
Revision as of 12:57, 4 September 2015
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 basically performs a sign extension on a 16bit HL to 24bit HL. 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
