Pseudocode for modulus and multiplication functions with only addition and subtraction

pseudo-mod.txt

1. multiplication:

function input --> (x*y)

if ( either x or y is less than zero ){
	FOR loop: product = subtract x from zero y times
} else if ( both are greater than or both are less than zero ){
	FOR loop: product = add x to to zero y times
}


2. modulus:

function input --> (m)

if (m<0) {
	m = (-1*m)
}