83:ROMCalls:4014

Synopsis

Official Name: GetCSC

Call Address: 4014

This routine returns the Current Scan Code into register A.

Inputs

• none

Outputs

• A = (kbdScanCode)
• (kbdScanCode) = 0
• kbdSCR,(iy+kbdFlags) reset
• HL = kbdScanCode
• BC,DE,F preserved

Comments

This routine expects that either interrupts are enabled or KbdScan was called manually. Either of these routines will check the keyboard and load the appropriate scan code into kbdScanCode and set the flag kbdSCR,(iy+kbdFlags).