vga_mem_rd_handler
*val = vga_mem_rd_handler(addr, arg1);
*val = vga_mem_rd_handler(addr, arg1);
*val |= vga_mem_rd_handler(addr + 1, arg1) << 8;
*val = vga_mem_rd_handler(addr, arg1);
*val |= vga_mem_rd_handler(addr + 1, arg1) << 8;
*val |= vga_mem_rd_handler(addr + 2, arg1) << 16;
*val |= vga_mem_rd_handler(addr + 3, arg1) << 24;
*val = vga_mem_rd_handler(addr, arg1);
*val |= vga_mem_rd_handler(addr + 1, arg1) << 8;
*val |= vga_mem_rd_handler(addr + 2, arg1) << 16;
*val |= vga_mem_rd_handler(addr + 3, arg1) << 24;
*val |= vga_mem_rd_handler(addr + 4, arg1) << 32;
*val |= vga_mem_rd_handler(addr + 5, arg1) << 40;
*val |= vga_mem_rd_handler(addr + 6, arg1) << 48;
*val |= vga_mem_rd_handler(addr + 7, arg1) << 56;