Forums before death by AOL, social media and spammers... "We can't have nice things"
|    comp.lang.asm.x86    |    Ahh, the lost art of x86 assembly    |    4,675 messages    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
|    Message 4,321 of 4,675    |
|    Paul Edwards to wolfgang kern    |
|    Re: 8086 32-bit multiply    |
|    23 Apr 21 20:17:33    |
      From: mutazilah@nospicedham.gmail.com              On Saturday, April 24, 2021 at 10:51:35 AM UTC+10, wolfgang kern wrote:              > [x8086 only]       > > ; multiply cx:bx by dx:ax, result in dx:ax       > the result of 32*32 bit doesn't fit into 32 bit.              Good point. I didn't think of that. I can't multiply       17 bits by 17 bits, one of the registers needs to       be 0. But I assume I need to at least overflow in       a predictable manner.              > either go with the given limits (16*16 bit) or       > build a cascade with intermediate variables aka       > MUL-ADD chains.              See my most recent post. :-)              BFN. Paul.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
(c) 1994, bbs@darkrealms.ca