ack/mach/i86/libem/mli4.s

27 lines
368 B
ArmAsm
Raw Permalink Normal View History

1987-01-08 10:13:48 +00:00
.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
1985-02-07 15:33:13 +00:00
.define .mli4
yl=2
yh=4
! x * y
! xl in ax
! xh in dx
1985-02-07 15:33:13 +00:00
.mli4:
mov bx,sp
push dx
mov cx,ax
mul yh(bx) ! xl*yh
pop dx
push ax
mov ax,dx
mul yl(bx) ! xh * yl
pop dx
add dx,ax ! xh*yl+xl*yh
mov ax,cx
1987-06-10 13:46:21 +00:00
mov cx,dx
mul yl(bx) ! xl*yl
1985-02-07 15:33:13 +00:00
add dx,cx
ret 4