RosettaCodeData/Task/Ethiopian-multiplication/PureBasic/ethiopian-multiplication-1.basic
2023-07-01 13:44:08 -04:00

33 lines
626 B
Text

Procedure isEven(x)
ProcedureReturn (x & 1) ! 1
EndProcedure
Procedure halveValue(x)
ProcedureReturn x / 2
EndProcedure
Procedure doubleValue(x)
ProcedureReturn x << 1
EndProcedure
Procedure EthiopianMultiply(x, y)
Protected sum
Print("Ethiopian multiplication of " + Str(x) + " and " + Str(y) + " ... ")
Repeat
If Not isEven(x)
sum + y
EndIf
x = halveValue(x)
y = doubleValue(y)
Until x < 1
PrintN(" equals " + Str(sum))
ProcedureReturn sum
EndProcedure
If OpenConsole()
EthiopianMultiply(17,34)
Print(#CRLF$ + #CRLF$ + "Press ENTER to exit")
Input()
CloseConsole()
EndIf