Difference between revisions of "84PCE:Syscalls:021D48"
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=== Outputs === | === Outputs === | ||
Z flag set if BC == 0 | Z flag set if BC == 0 | ||
| + | |||
A holds upper byte of BC | A holds upper byte of BC | ||
=== Destroys === | === Destroys === | ||
* A | * A | ||
Revision as of 17:07, 4 May 2015
Contents
Synopsis
Hypothesized Official Name: chkifBCis0
Syscall Address: 021D48h
Checks if the 24-bit value in BC is 0.
Inputs
BC - value
Outputs
Z flag set if BC == 0
A holds upper byte of BC
Destroys
- A
