Foone🏳️⚧️
I posted an out of context screenshot of the code for Where in the World is Carmen Sandiego? on Tumblr, and really confused a young programmer with the pointer of 0x33B6.
How can pointers be that small? Isn't there a virtual address space? What is going on?!
Foone🏳️⚧️
Answers:
implicit segments, you're seeing one 16bit half of a 20 bit address.
No. This is a physical address.
Segmented Real Mode x86 is going on.
Foone🏳️⚧️
@darkling I think everyone who had to program for the PC from 1981 to about 1995 yelled this at Intel, yeah.
Hugo Mills
@foone "One 16-bit half of a 20-bit address".
Did anyone actually *tell* Intel that that's not how halves work?
Foone🏳️⚧️
this code is calling 0xA.
totally normal address for a function to have, what's wrong? don't you want to call a?
Foone🏳️⚧️
@yomimono @leonerd
And they say
She's in the Class 0xA Team
Stuck in her daydream
Been this way since eighteen, but lately
Her face seems
Slowly sinking, wasting
Crumbling like pastries
And they scream
"The worst things in life come free to us"
yomimono, still on earth
Paul Evans
@foone If there's something strange in your neighbourhood
Who you gonna call?
0xA. Just A.
０７６萌ＳＮＳ is a social network, courtesy of ０７６. It runs on GNU social, version 2.0.2-beta0, available under the GNU Affero General Public License.
All ０７６萌ＳＮＳ content and data are available under the Creative Commons Attribution 3.0 license.