VGT_NUM_INSTANCES
WREG32(VGT_NUM_INSTANCES, 1);
WREG32(VGT_NUM_INSTANCES, 1);
case VGT_NUM_INSTANCES:
WREG32(VGT_NUM_INSTANCES, 1);
WREG32(VGT_NUM_INSTANCES, 0);
WREG32(VGT_NUM_INSTANCES, 1);
WREG32(VGT_NUM_INSTANCES, 1);
case VGT_NUM_INSTANCES: