BT848_INT_MASK
bgwrite(0, BT848_INT_MASK);
bgwrite(0, BT848_INT_MASK);
bgwrite(0, BT848_INT_MASK);
bgwrite(0, BT848_INT_MASK);
btwrite(0, BT848_INT_MASK);
BT848_INT_MASK);
BT848_INT_MASK);
btand(~BT848_INT_VSYNC, BT848_INT_MASK);
btor(BT848_INT_VSYNC, BT848_INT_MASK);
btor(BT848_INT_VSYNC, BT848_INT_MASK);
btor(BT848_INT_VSYNC, BT848_INT_MASK);
btor(BT848_INT_VSYNC, BT848_INT_MASK);
btor(BT848_INT_VSYNC, BT848_INT_MASK);
astat=stat&btread(BT848_INT_MASK);
btwrite(0, BT848_INT_MASK);
btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
BT848_INT_MASK);
btwrite(0, BT848_INT_MASK);
btwrite(0, BT848_INT_MASK);
btwrite(0, BT848_INT_MASK);
btand(~BT848_INT_VSYNC, BT848_INT_MASK);