ref: 35cffbd08f2428ef2b9be2bc293aa4b345cf082a dir: /sys/src/libc/386/muldiv.s/
TEXT umuldiv(SB), $0 MOVL a+0(FP), AX MULL b+4(FP) DIVL c+8(FP) RET TEXT muldiv(SB), $0 MOVL a+0(FP), AX IMULL b+4(FP) IDIVL c+8(FP) RET END