VOID KeyboardEvent(BOOL bPress, UINT out, UINT in)
{
if (nState != SM_RUN) // not in running state
return; // ignore key
if (in == 0x8000) // ON key ?
{
Chipset.IR15X = bPress?0x8000:0x0000; // refresh special ON key flag
}
else
{
// "out" is outside Keyboard_Row
if (out >= ARRAYSIZEOF(Chipset.Keyboard_Row)) return;
// in &= 0x1FF; // only IR[0:8] are wired on Clarke/Yorke chip
_ASSERT(out < ARRAYSIZEOF(Chipset.Keyboard_Row));
if (bPress) // key pressed
Chipset.Keyboard_Row[out] |= in; // set key marker in keyboard row
else
Chipset.Keyboard_Row[out] &= (~in); // clear key marker in keyboard row
}
AdjKeySpeed(); // adjust key repeat speed
ScanKeyboard(FALSE,FALSE); // update Chipset.in register by 1ms keyboard poll
Sleep(50); // hold key state for a definite time
return;
}
__interrupt void Timer0Ovf(void)
{
TCNT0 = 0x83;
ScanKeyboard();
}
