C++ (Cpp) apple525_seek_disk Exemples

Exemple #1

Fichier : appldriv.c Projet : BirchJD/xmame-0.103-RPi

static void apple525_disk_set_lines(mess_image *image, UINT8 new_state)
{
	struct apple525_disk *cur_disk;
	UINT8 old_state;
	unsigned int phase;

	cur_disk = (struct apple525_disk *) image_lookuptag(image, APPLE525TAG);

	old_state = cur_disk->state;
	cur_disk->state = new_state;

	if ((new_state & 0x0F) > (old_state & 0x0F))
	{
		phase = 0;
		switch((old_state ^ new_state) & 0x0F)
		{
			case 1:	phase = 0; break;
			case 2:	phase = 1; break;
			case 4:	phase = 2; break;
			case 8:	phase = 3; break;
		}

		phase -= floppy_drive_get_current_track(image) * 2;
		if (cur_disk->tween_tracks)
			phase--;
		phase %= 4;

		switch(phase)
		{
			case 1:
				apple525_seek_disk(image, cur_disk, +1);
				break;
			case 3:
				apple525_seek_disk(image, cur_disk, -1);
				break;
		}
	}
}

Exemple #2

Fichier : appldriv.c Projet : clobber/UME

static void apple525_disk_set_lines(device_t *device,device_t *image, UINT8 new_state)
{
	apple525_floppy_image_device *cur_disk;
	UINT8 old_state;
	unsigned int phase;

	cur_disk = get_device(image);

	old_state = cur_disk->state;
	cur_disk->state = new_state;

	if ((new_state & 0x0F) > (old_state & 0x0F))
	{
		phase = 0;
		switch((old_state ^ new_state) & 0x0F)
		{
			case 1: phase = 0; break;
			case 2: phase = 1; break;
			case 4: phase = 2; break;
			case 8: phase = 3; break;
		}

		phase -= floppy_drive_get_current_track(image) * 2;
		if (cur_disk->tween_tracks)
			phase--;
		phase %= 4;

		switch(phase)
		{
			case 1:
				apple525_seek_disk(image, +1);
				break;
			case 3:
				apple525_seek_disk(image, -1);
				break;
		}
	}
}