delorie.com/archives/browse.cgi | search |
From: | Nate Eldredge <neldredge AT hmc DOT edu> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: ....I know... |
Date: | 16 Aug 2000 16:03:48 -0700 |
Organization: | Posted via Supernews, http://www.supernews.com |
Lines: | 32 |
Sender: | nate AT mercury DOT bitbucket |
Message-ID: | <83em3ox0yz.fsf@mercury.bitbucket> |
References: | <zvFl5.2159$By6 DOT 31387 AT news1 DOT online DOT no> <t0sfpsgrntmfofa91jq7ut5cc1p1943729 AT 4ax DOT com> <JXBm5.4390$By6 DOT 71767 AT news1 DOT online DOT no> |
X-Complaints-To: | newsabuse AT supernews DOT com |
User-Agent: | Gnus/5.0802 (Gnus v5.8.2) Emacs/20.5 |
MIME-Version: | 1.0 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
"Vermin" <ratspl AT hotmail DOT com> writes: > ..I'm quite aware of how asm works... I actually coded in asm before I > started in DJGPP/C++. > What I wanted to know was for instance that "&" gives the mem pos of the > variable, sort of like > > mov ax, anIntVar > > instead of > > mov ax, [anIntVar] > > ...but how does -> and * work?? For *, you load the pointer into some register, and then move indirectly. mov eax, pointer mov result, [eax] -> does the same thing, but adds the offset of the desired field. So if the field is 8 bytes from the beginning of the struct, you might have mov eax, pointer mov result, [eax+8] -- Nate Eldredge neldredge AT hmc DOT edu
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |