Back to home page

DOS ain't dead

Forum index page

Log in | Register

Back to the forum
Board view  Mix view

MPLAYER update (Win32, tests needed) (Announce)

posted by Khusraw E-mail, Bucharest, Romania, 22.12.2009, 18:41
(edited by Khusraw on 22.12.2009, 21:15)

> INC/DEC are slow on Pentium 4 on up, and forbidden completely in 64-bit
> mode. GCC actually generates this a lot when using -mtune=generic or
> similar.

Quotation needed. AFAIK on Pentium 4 etc. INC and DEC ar as fast as SUB 1 ADD 1. Perhaps you want to say that multiple INCs and DECs are slower than ADD and SUB or that on 64-bit CPUs the carry flag is not affected by them as opposed to SUB 1 and ADD 1.

---
Glory to God for all things

 

Complete thread:

Back to the forum
Board view  Mix view
22632 Postings in 2109 Threads, 402 registered users, 303 users online (0 registered, 303 guests)
DOS ain't dead | Admin contact
RSS Feed
powered by my little forum