Difference between revisions of "83Plus:BCALLs:4A65"
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| + | == Synopsis ==  | ||
'''Official Name:''' ZIfRclHandler  | '''Official Name:''' ZIfRclHandler  | ||
| − | + | '''BCALL Address:''' 4A65h  | |
| + | |||
| + | Returns whether or not a Rcl handler (the function that occurs when you press 2nd+Rcl) is currently active.  | ||
| + | |||
| + | === Inputs ===  | ||
| + | ''None''  | ||
| + | |||
| + | === Outputs ===  | ||
| + | * Zero Flag: Set if Rcl handler is active, reset otherwise.  | ||
| + | |||
| + | === Registers Destroyed ===  | ||
| + | ''Unknown''  | ||
| + | |||
| + | == Comments ==  | ||
| + | This B_CALL works by simply comparing the address of [[83Plus:RAM:cxMain|cxMain]] to whatever it should be when the Rcl handler is active. Ironically [[83Plus:RAM:cxPage|cxPage]] is not checked.  | ||
Revision as of 07:37, 25 March 2005
Synopsis
Official Name: ZIfRclHandler
BCALL Address: 4A65h
Returns whether or not a Rcl handler (the function that occurs when you press 2nd+Rcl) is currently active.
Inputs
None
Outputs
- Zero Flag: Set if Rcl handler is active, reset otherwise.
 
Registers Destroyed
Unknown
Comments
This B_CALL works by simply comparing the address of cxMain to whatever it should be when the Rcl handler is active. Ironically cxPage is not checked.