%import floats %import textio %zeropage basicsafe main { sub start() { mul_ubyte(0, 0, 0) mul_ubyte(20, 1, 20) mul_ubyte(20, 10, 200) mul_byte(0, 0, 0) mul_byte(10, 10, 100) mul_byte(5, -5, -25) mul_byte(0, -30, 0) mul_uword(0,0,0) mul_uword(50000,1, 50000) mul_uword(500,100,50000) mul_word(0,0,0) mul_word(-10,1000,-10000) mul_word(1,-3333,-3333) mul_float(0,0,0) mul_float(2.5,10,25) mul_float(-1.5,10,-15) } sub mul_ubyte(ubyte a1, ubyte a2, ubyte c) { ubyte r = a1*a2 if r==c txt.print(" ok ") else txt.print("err! ") txt.print("ubyte ") txt.print_ub(a1) txt.print(" * ") txt.print_ub(a2) txt.print(" = ") txt.print_ub(r) c64.CHROUT('\n') } sub mul_byte(byte a1, byte a2, byte c) { byte r = a1*a2 if r==c txt.print(" ok ") else txt.print("err! ") txt.print("byte ") txt.print_b(a1) txt.print(" * ") txt.print_b(a2) txt.print(" = ") txt.print_b(r) c64.CHROUT('\n') } sub mul_uword(uword a1, uword a2, uword c) { uword r = a1*a2 if r==c txt.print(" ok ") else txt.print("err! ") txt.print("uword ") txt.print_uw(a1) txt.print(" * ") txt.print_uw(a2) txt.print(" = ") txt.print_uw(r) c64.CHROUT('\n') } sub mul_word(word a1, word a2, word c) { word r = a1*a2 if r==c txt.print(" ok ") else txt.print("err! ") txt.print("word ") txt.print_w(a1) txt.print(" * ") txt.print_w(a2) txt.print(" = ") txt.print_w(r) c64.CHROUT('\n') } sub mul_float(float a1, float a2, float c) { float r = a1*a2 if abs(r-c)<0.00001 txt.print(" ok ") else txt.print("err! ") txt.print("float ") floats.print_f(a1) txt.print(" * ") floats.print_f(a2) txt.print(" = ") floats.print_f(r) c64.CHROUT('\n') } }