C++ (Cpp) lm_allocの例

コード例 #1

ファイル: vbe.c プロジェクト: gtugablue/LCOM-Racinix

int vbe_get_mode_info(unsigned short mode, vbe_mode_info_t *vmi_p)
{
	mmap_t map;

	if (lm_alloc(sizeof(vbe_mode_info_t), &map) == NULL)
	{
		return 1;
	}

	struct reg86u reg86;

	reg86.u.b.intno = VBE_INTERRUPT_VECTOR; /* BIOS video services */
	reg86.u.b.ah = VBE_FUNCTION;
	reg86.u.b.al = VBE_RETURN_VBE_MODE_INFO;
	reg86.u.w.cx = mode;
	reg86.u.w.es = PB2BASE(map.phys);
	reg86.u.w.di = PB2OFF(map.phys);

	if (sys_int86(&reg86) == OK)
	{
		if (reg86.u.w.ax == VBE_FUNCTION_SUPPORTED | VBE_FUNCTION_CALL_SUCCESSFUL)
		{
			*vmi_p = *((vbe_mode_info_t *)map.virtual);
			lm_free(&map);
			return 0;
		}
	}

コード例 #2

ファイル: vbe.c プロジェクト: ziglef/DefenseOfTheFuture

int vbe_get_mode_info(unsigned short mode, vbe_mode_info_t *vmi_p) {
  
  struct reg86u reg86;
  mmap_t memory;
  
  lm_init();
  
  lm_alloc(VBE_MODE_INFO_SIZE, &memory);
  
  reg86.u.w.ax = 0x4F01;
  reg86.u.w.cx =  1 << 14 | mode;
  reg86.u.w.es = PB2BASE(memory.phys);
  reg86.u.w.di = PB2OFF(memory.phys);
  reg86.u.b.intno = 0x10;
  
  if(sys_int86(&reg86) != OK){
	  printf("vbe_get_mode_info: sys_int86() failed \n");
	  return 1;
  }
  
  memcpy(vmi_p, memory.virtual, VBE_MODE_INFO_SIZE);
  
  lm_free(&memory);
  
  return 0;
}

コード例 #3

ファイル: video_gr.c プロジェクト: Digas29/LCOM-FROGGER

int controler_info(){
	mmap_t map_info;

	char * virtualBase = (char *) lm_init();
	if(virtualBase == NULL) return 1;

	VESA_INFO *info = (VESA_INFO *)lm_alloc(sizeof(VESA_INFO), &map_info);


	info->VESASignature[0] = 'V';
	info->VESASignature[1] = 'B';
	info->VESASignature[2] = 'E';
	info->VESASignature[3] = '2';


	vbe_get_controler_info(map_info.phys);
	char* ptr;
	ptr = REALPTR(info->VideoModePtr) + virtualBase;

	unsigned short *videoModesPtr = (unsigned short *)ptr;
	printf("Capabilites: \n");
	if(info->Capabilities[0] & BIT(0)){
		printf("DAC width is switchable to 8 bits per primary color\n");
	}
	else{
		printf("DAC is fixed width, with 6 bits per primary color\n");
	}
	if(info->Capabilities[0] & BIT(1)){
		printf("Controller is not VGA compatible\n");
	}
	else{
		printf("Controller is VGA compatible\n");
	}
	if(info->Capabilities[0] & BIT(2)){
		printf("When programming large blocks of information to the RAMDAC, use the blank bit in Function 09h.\n");
	}
	else{
		printf("Normal RAMDAC operation\n");
	}
	printf("\n Modes: \n");
	while(*videoModesPtr != END){
		printf("0x%X \t", *videoModesPtr);
		videoModesPtr++;
	}
	printf("\n\n VRAM SIZE: %d blocks of 64 KB\n", info->TotalMemory);
	lm_free(&map_info);
	return 0;
}

コード例 #4

ファイル: vbe.c プロジェクト: vascofg/lcom

int vbe_get_mode_info(unsigned short mode, vbe_mode_info_t *vmi_p) {
  
	struct reg86u registers;
	mmap_t address;

	lm_init();
	lm_alloc(VBE_MODE_INFO_BLOCK_SIZE, &address);
	registers.u.b.ah = 0x4F;
	registers.u.b.al = 0x01;
	registers.u.w.es = PB2BASE(address.phys);
	registers.u.w.di = PB2OFF(address.phys);
	registers.u.b.intno = 0x10;
	registers.u.w.cx = 1 << 14 | mode;
	sys_int86(&registers);
	vbe_unpack_mode_info(address.virtual, vmi_p);
	lm_free(&address);
	return 1;
}