AS

char

Signed 8 bit integer

ASCII character

BY

byte

Unsigned 8 bit integer

.

I2

uint2

Unsigned 16 bit integer

.

I4

int4

Signed 32 bit integer

.

I8

int8

Signed 64 bit integer

Reserved for future use

R4

float4

32 bit IEEE floating point

VMS variant also called "R4"

R8

float8

64 bit IEEE floating point

.

RQ

float16

128 bit IEEE floating point

Reserved for future use

VG

none

64 bit VMS G-floating point

Input support only

VD

none

64 bit VMS D-floating point

Input support only

VH

none

128 bit VMS H-floating point

Not implemented

??

none

Null field

Backward compatibility only