PC bootsector intros?
category: general [glöplog]
The debugger won to the fractal terrain and THE JULIA/MANDELBROT SET demo/os (wtf?). That one is clearly so much NOT out scene :)
question :
if we compare bootsector intros to classic ms-dos intros, expect the init part you have to write yourself, after that, what are the major differences ??
can you still use int 10h service? or they are only available on dos?
if so, how do you communicate with hardware (in this case video card)?
if interrupts are not available i believe only writing to ports (ex : for speaker) or memory (ex : A000:0000) will work ?
if we compare bootsector intros to classic ms-dos intros, expect the init part you have to write yourself, after that, what are the major differences ??
can you still use int 10h service? or they are only available on dos?
if so, how do you communicate with hardware (in this case video card)?
if interrupts are not available i believe only writing to ports (ex : for speaker) or memory (ex : A000:0000) will work ?
INT 10h is a BIOS interrupt, so it will work without an OS.
yeah int10 is a video-bios call. You'll also, if you'd be so inclined, have to access data by the sector with int 13. It's kindof an appealing platform because it turns out that you don't really need an os like dos and it's real-time.
You can do interrupts all you like, just (re)write the first 1024 bytes of memory. Carefully. With interrupts disabled.
In light of certain recent 256b intros and the like, the time has maybe come to revisit this :)
