SDCC 資料型態 (data type)

type	width	default	signed range	unsigned range
bool	1 bit	unsigned	x	0 ~ 1
char	1 byte	signed	-128 ~ 127	0 ~ 255
short	2 bytes	signed	-32768 ~ 32767	0 ~ 65535
int	2 bytes	signed	-32768 ~ 32767	0 ~ 65535
long	4 bytes	signed	-2147483648 ~ 2147483647	0 ~ 4294967295
float	4 bytes	signed	?	1.175494351E-38 ~ 3.402823466E+38
pointer	1~4 bytes	generic	x	x