title: "GetBit" description: TRSE built-in method (from IDE help)

`GetBit`

Systems: MOS6502, M6809
Parameters: a,b

[byte] = GetBit( [address], [byte] );

[address] - to check
[byte] - bit to check

Description

Returns the bit specified in parameter 2 at the address in parameter 1 (0 or 1).

Example


// Check if sprite "i" is on
is_active := GetBit( SPRITE_BITMASK, i );


//  sprite-sprite collision occurred
if ( GetBit( ^$D019, 2 ) = 1) then begin
   ....