Difference between revisions of "83Plus:BCALLs:4FF9"
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*HL points to the start of the hook. <!-- The hook block? --> | *HL points to the start of the hook. <!-- The hook block? --> | ||
*F is 6A if the hook was not run. <!-- And if it was run? --> | *F is 6A if the hook was not run. <!-- And if it was run? --> | ||
| + | |||
| + | === Destroys === | ||
| + | Unknown. | ||
== Comments == | == Comments == | ||
Revision as of 23:30, 26 March 2006
Synopsis
Unofficial Name: RunTracerHook
BCALL Address: 4FF9
Checks the first byte of the block for the Trace Hook. If the byte is 83, the hook is run. Otherwise, the active flag for the hook is set to zero.
Inputs
The block for the Trace Hook must be set up correctly.
Outputs
- HL points to the start of the hook.
- F is 6A if the hook was not run.
Destroys
Unknown.
Comments
This BCALL is known to be present in AMS 1.13, and is undocumented.
Credits and Contributions
- Michael Cimino
