Multiplication takes more than a handful of instructions if the hardware doesn't do it. https://godbolt.org/z/ccYPaz1Pj https://godbolt.org/z/ccYPaz1Pj For th

Multiplication takes more than a handful of instructions if the hardware doesn't do it. https://godbolt.org/z/ccYPaz1Pj https://godbolt.org/z/ccYPaz1Pj For this example (AVR), this is the int multiply function __mulhi3: 00: 00 24 eor r0, r0 02: 55 27 eor r21, r21 04: 00 c0 rjmp .+0 06: 08 0e add r0, r24 08: 59 1f adc r21, r25 0a: 88 0f add r24, r24 0c: 99 1f adc r25, r25 0e: 00 97 sbiw r24, 0x00 10: 01 f0 breq .+0 12: 76 95 lsr r23 14: 67 95 ror r22 16: 00 f0 brcs .+0 18: 71 05 cpc r23, r1 1a: 01 f4 brne .+0 1c: 80 2d mov r24, r0 1e: 95 2f mov r25, r21 20: 08 95 ret