3 ms·
How do you feel about John Regehr's suggestion (http://blog.regehr.org/archives/1154 http://blog.regehr.org/archives/1154) mentioned below? His suggestion sound
by scott_s 12y ago
How do you feel about John Regehr's suggestion (http://blog.regehr.org/archives/1154 http://blog.regehr.org/archives/1154) mentioned below? His suggestion sounds reasonable to me because the instructions would optionally trap on overflow. That should avoid the cost (which I have an intuition for) for the common case.
- thesz 12y agox86 has special into command to trap on overflow. Thus I don't know what he is talking about. http://www.electronics.dit.ie/staff/tscarff/8086_instruction_set/8086_instruction_set.html#INTO http://www.electronics.dit.ie/staff/tscarff/8086_instruction... You can do without carry and overflow flags in long arithmetic just fine.
- dezgeg 12y agoINTO is not supported in 64-bit mode.