Difference between revisions of "83Plus:BCALLs:4FF0"
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[[Category:83Plus:BCALLs:By Name:Hook|RunGraphingHook]] | [[Category:83Plus:BCALLs:By Name:Hook|RunGraphingHook]] | ||
[[Category:83Plus:BCALLs:By Address|4FF0 - RunGraphingHook]] | [[Category:83Plus:BCALLs:By Address|4FF0 - RunGraphingHook]] | ||
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== Synopsis == | == Synopsis == | ||
'''Unofficial Name:''' RunGraphingHook | '''Unofficial Name:''' RunGraphingHook | ||
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=== Inputs === | === Inputs === | ||
The block for the Graph Hook must be set up correctly. | The block for the Graph Hook must be set up correctly. | ||
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=== Outputs === | === Outputs === | ||
| − | *HL points to the start of the hook. | + | *HL points to the start of the hook. |
| − | *F is 6A if the hook was not run. | + | *F is 6A if the hook was not run. |
=== Destroys === | === Destroys === | ||
| − | + | *Depends on hook, might destroy everything. | |
== Comments == | == Comments == | ||
Latest revision as of 10:08, 10 July 2006
Synopsis
Unofficial Name: RunGraphingHook
BCALL Address: 4FF0
Checks the first byte of the block for the Graph 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 Graph 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
- Depends on hook, might destroy everything.
Comments
This BCALL is known to be present in OS 1.13, and is undocumented.
Credits and Contributions
- Michael Cimino (probably)
