Difference between revisions of "83Plus:BCALLs:4015"
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=== Outputs === | === Outputs === | ||
| − | * ( | + | * ([[83Plus:RAM:843F|kbdScanCode]])=scan code of key press |
=== Registers Destroyed === | === Registers Destroyed === | ||
Revision as of 20:41, 7 April 2005
Synopsis
Official Name: KbdScan
BCALL Address: 4015
This routine scans the keyboard for any key presses and updates the memory location kbdscancode.
Inputs
- none
Outputs
- (kbdScanCode)=scan code of key press
Registers Destroyed
- ??
Comments
Normally this BCALL is called by the interrupt routine. If interrupts are not enabled, this can be used prior to the Getcsc BCALL to achieve the same results.
