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// Project: Test 
// Created: 2022-06-26

// show all errors
SetErrorMode(2)

// set window properties
SetWindowTitle( "Bitwise test logic Test" )
SetWindowSize( 1024, 768, 0 )
SetWindowAllowResize( 1 ) // allow the user to resize the window

// set display properties
SetVirtualResolution( 1024, 768 ) // doesn't have to match the window
SetOrientationAllowed( 1, 1, 1, 1 ) // allow both portrait and landscape on mobile devices
SetSyncRate( 30, 0 ) // 30fps instead of 60 to save battery
SetScissor( 0,0,0,0 ) // use the maximum available screen space, no black borders
UseNewDefaultFonts( 1 ) // since version 2.0.22 we can use nicer default fonts



do
	//a 1|b=0
	a=random2(0,2)
	b=random2(0,2)
	print ("Truth Table of gates using ")
	Print (" a = " + str(a) + ": b = " + str(b))
    print ("Test "+str(a)+ " and "+str(b) + " bitwise = " + str (BitwiseAnd(a,b)) )
    print ("Test "+str(a)+ " or "+str(b) + " bitwise = " + str (BitwiseOr(a,b)) )
	print ("Test "+str(a)+ " not "+str(b) + " bitwise = " + str (BitwiseNot(a,b)) )
	print ("Test "+str(a)+ " nor bitwise = " + str(BitwiseNor(a)) )
	if BitwiseNor(a) >0 then sleep (10000)
	print ("Test "+str(a)+ " xnor "+str(b) + " bitwise = " + (BitwiseXnor(a,b)) )
	print ("Test "+str(a)+ " xor "+str(b) + " bitwise = " + str (BitwiseXor(a,b)) )

    Print( ScreenFPS() )
    Sync()
loop


//a and b=  0 adding zero to a number must result 0
//a nor b = 0 a can never be not 0 inb resullt
//a xnor b =0 a cant be exclusively not 0 simultaneously

//b=1
//or
//1 and b =1 and 1 to a number will always be true
//1 or 1 = true unless both values are 1
//1 not 1 = 0 they are both different then result 1
// xnor 1 =1 (exclusively not both therefore true)
//1 xor 1 = 1 (exclusively) unless different

//Bitwise mathematics
function BitwiseAnd(x as integer,y as integer)
	r as integer
	r=x&&y
endfunction r

function BitwiseOr(x as integer,y as integer)
	r as integer
	r=x||y
endfunction r

function BitwiseNot(x as integer,y as integer)
	r as integer
	r=x<>y
endfunction r

function BitwiseNor(a as integer)
	r as integer
	l as string
	l=str(a)
	s as string
	For i=len(l) to 0 step -1
		s=(str(i)+"="+Bin(i))
    next i
    if val(s) then r=val(s,2)
endfunction r

function BitwiseXor(x as integer,y as integer)
	r as integer
	r=x^y
endfunction r

function BitwiseXNor(a as integer,b as integer)
	r as integer
	rs as string
	d as integer
	c as string
	//c=str(BitwiseOr(a,b))
    //r=(val(c,2))
    r=a<>b^a<>b
    rs=bin(r)
    r=0^a<>b
    r=val(str(r),2)
endfunction	rs

function BitwiseToString(a as integer)
	l as string
	l=str(a)
	s as string
	For i=0 to len(l)
		s=(str(i)+"="+Bin(i))
    next i
endfunction s

/// >>>>>extras

function BitwiseShiftLeft(a as integer,value as integer)
	if value=0 then exitfunction 0
	r as integer
	r=a<<value
endfunction r

function BitwiseShiftRight(a as integer,value as integer)
	if value=0 then exitfunction 0
	r as integer
	r=a>>value
endfunction r 
	
function BitwiseShift(a as integer, opp as integer, value as integer)
	r as integer
	if value=-0 then exitfunction 0
	if Opp = 0 then exitfunction 0
	if opp > 0 
		r=a>>value 
		exitfunction r
	endif	
	if opp < 0 
		r=a<<value 
		exitfunction r
	endif
endfunction 0 //(failed a variable needs setting to do this correct)