Search found 9 matches
- Thu Oct 15, 2009 5:21 pm
- Forum: Beginning OS Development
- Topic: negative used blocks with vmware in demo 11
- Replies: 11
- Views: 31104
Re: negative used blocks with vmware in demo 11
any help guys ? i am stuck at this.
- Tue Oct 13, 2009 6:41 am
- Forum: Beginning OS Development
- Topic: negative used blocks with vmware in demo 11
- Replies: 11
- Views: 31104
Re: negative used blocks with vmware in demo 11
hi andy, i searched you're previous posts for help on this issue, i did't find one. could you please point me to the link or explain how to correct the problem.
- Fri Oct 09, 2009 4:25 pm
- Forum: Beginning OS Development
- Topic: negative used blocks with vmware in demo 11
- Replies: 11
- Views: 31104
Re: negative used blocks with vmware in demo 11
Hey Andy,
My problem here is the initialized memory is less than the sum of available memories of the regions. That is the reason why i am getting negative used blocks. my question is, is this the problem specific to vmware or bug in my code.
My problem here is the initialized memory is less than the sum of available memories of the regions. That is the reason why i am getting negative used blocks. my question is, is this the problem specific to vmware or bug in my code.
- Wed Oct 07, 2009 6:04 am
- Forum: Beginning OS Development
- Topic: negative used blocks with vmware in demo 11
- Replies: 11
- Views: 31104
Re: negative used blocks with vmware in demo 11
Thanks for the reply.
Changing itos_s to itos will print a large integer value. In my case c = va_arg (args, int); is already a negative value.
Changing itos_s to itos will print a large integer value. In my case c = va_arg (args, int); is already a negative value.
- Tue Oct 06, 2009 8:21 am
- Forum: Beginning OS Development
- Topic: negative used blocks with vmware in demo 11
- Replies: 11
- Views: 31104
negative used blocks with vmware in demo 11
is this the problem with vmware ?
code can be browsed at
http://code.google.com/p/zygote/source/ ... ngr_phys.c
http://code.google.com/p/zygote/source/ ... l/kernel.c
i did't modify much in the demo code.
- Tue Sep 22, 2009 6:19 am
- Forum: Beginning OS Development
- Topic: Demo 8 problem
- Replies: 3
- Views: 13774
Re: Demo 8 problem
Thanks for the reply mike. i tried the changing add esp, 12 to different values. 28 worked for me. will there be any problems i will run into with this solution ?
- Mon Sep 21, 2009 7:13 pm
- Forum: Beginning OS Development
- Topic: Demo 8 problem
- Replies: 3
- Views: 13774
Demo 8 problem
i have written my pit irq handler as follows (using gcc and nasm to compile) //! pit timer interrupt handler void i86_pit_irq () { asm ("add $12, %esp"); asm ("pusha"); //! increment tick count _pit_ticks++; k_printf("pit irq handler"); //! tell hal we are done interruptdone(0); asm ("popa"); asm ("...
- Mon Sep 21, 2009 3:17 am
- Forum: Beginning OS Development
- Topic: difference between interrupt, trap gate and task gate
- Replies: 3
- Views: 15345
Re: difference between interrupt, trap gate and task gate
thanks for the reply andy. i have one more question, in demo 7 why do we install GDT twice (in assembly and C)?
- Fri Sep 18, 2009 6:33 am
- Forum: Beginning OS Development
- Topic: difference between interrupt, trap gate and task gate
- Replies: 3
- Views: 15345
difference between interrupt, trap gate and task gate
Hi everyone,
i am new to the OS development. i find the tutorial very useful. thanks mike and all for this wonderful site.
please can any one explain me what is the difference between interrupt, trap gate and task gate.
currently developing
http://zygote.googlecode.com
i am new to the OS development. i find the tutorial very useful. thanks mike and all for this wonderful site.
please can any one explain me what is the difference between interrupt, trap gate and task gate.
currently developing
http://zygote.googlecode.com