Difference between revisions of "84PCE:Syscalls:021D4C"
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=== Destroys === | === Destroys === | ||
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Revision as of 09:26, 26 May 2015
Contents
Synopsis
Hypothesized Official Name: ChkDEis0
Syscall Address: 021D4Ch
Checks if the 24-bit value in DE is 0.
Inputs
DE - value
Outputs
Z flag set if DE == 0
A holds upper byte of DE
Destroys
- AF