Function SysMapFB

Kernel/src/arch/x86_64/syscalls.cpp:481–505

}

long SysMapFB(regs64_t *r){
	video_mode_t vMode = Video::GetVideoMode();

	uint64_t pageCount = (vMode.height * vMode.pitch + 0xFFF) >> 12;
	uintptr_t fbVirt = (uintptr_t)Memory::Allocate4KPages(pageCount, Scheduler::GetCurrentProcess()->addressSpace);
	Memory::MapVirtualMemory4K((uintptr_t)HAL::videoMode.physicalAddress,fbVirt,pageCount,Scheduler::GetCurrentProcess()->addressSpace);

	mem_region_t memR;
	memR.base = fbVirt;
	memR.pageCount = pageCount;
	Scheduler::GetCurrentProcess()->sharedMemory.add_back(memR);

	fb_info_t fbInfo;
	fbInfo.width = vMode.width;
	fbInfo.height = vMode.height;
	fbInfo.bpp = vMode.bpp;
	fbInfo.pitch = vMode.pitch;

	if(HAL::debugMode) fbInfo.height = vMode.height / 3 * 2;

	*((uintptr_t*)SC_ARG0(r)) = fbVirt;
	*((fb_info_t*)SC_ARG1(r)) = fbInfo;
	
	return 0;
}

long SysAlloc(regs64_t* r){
	uint64_t pageCount = SC_ARG0(r);