Search found 7 matches

by yma
Mon Jan 03, 2011 9:08 pm
Forum: Beginners
Topic: simple question
Replies: 3
Views: 11015

simple question

Can I use a virtual cd/dvd drive instead of a virtual floppy drive?
by yma
Mon Jan 03, 2011 5:07 am
Forum: Beginners
Topic: replacement for vfd and partcopy on vista x64
Replies: 5
Views: 28375

Re: replacement for vfd and partcopy on vista x64

already tried the vfd edition you posted, downloading the partcopy now.
by yma
Thu Dec 23, 2010 8:27 pm
Forum: Beginners
Topic: replacement for vfd and partcopy on vista x64
Replies: 5
Views: 28375

replacement for vfd and partcopy on vista x64

I want to develop an os on my desktop which is running vista x64. i currently develop my os on my laptop, but my laptop is almost never connected to the internet, so i have a hard time getting help with coding errors. I cannot use vfd because i for some reason get the error "virtual floppy driv...
by yma
Fri Dec 17, 2010 7:24 am
Forum: Beginning OS Development
Topic: iret return cs selector null after attempting to add graphic
Replies: 4
Views: 5848

Re: iret return cs selector null after attempting to add graphic

it is just 26 8x8 character arrays, with either a dot or an x. in the print function if an x appears, it puts a pixel on the screen at the position of the cursor combined with the current position within the array.
by yma
Wed Dec 15, 2010 6:24 pm
Forum: Beginning OS Development
Topic: iret return cs selector null after attempting to add graphic
Replies: 4
Views: 5848

Re: iret return cs selector null after attempting to add graphic

unsigned char **bitmaps; void getMaps(char* f) { bitmaps = new unsigned char *[26]; FILE file = volOpenFile(f); if (file.flags == FS_INVALID) { return; } //! cant display directories if (( file.flags & FS_DIRECTORY ) == FS_DIRECTORY) { return; } int k = 0; while (file.eof != 1) { unsigned char ...
by yma
Wed Dec 15, 2010 6:19 pm
Forum: Beginning OS Development
Topic: iret return cs selector null after attempting to add graphic
Replies: 4
Views: 5848

Re: iret return cs selector null after attempting to add graphic

I fixed the previous error, but now am getting check_cs(0x2e2e): not a valid code segment ! and a general protection fault. I know the area of code this is coming from, and will post code soon.
by yma
Tue Dec 14, 2010 4:08 am
Forum: Beginning OS Development
Topic: iret return cs selector null after attempting to add graphic
Replies: 4
Views: 5848

iret return cs selector null after attempting to add graphic

I was working on my laptop (which i am not on right now) on an operating system project. I started with the os developement tutorial's tutorial 23 on this site. then I tried to add graphics. I switch to mode 13h before protected mode, test and everything was fine. then I modified the printing functi...