Asynchronous Serial Communications Programmer's Reference Manual (32022-90052)

154 Chapter8
Intrinsics Reference
Intrinsic Descriptions
Intrinsic Descriptions
The descriptions that follow are specific to the use of intrinsics for
programmatic control of asynchronous devices. Because of this, the
explanations in this manual may vary from the more general
explanations provided by the MPE/iX Intrinsics Reference Manual. In
all cases, however, the intrinsics are described according to the
conventions that are explained here.
Intrinsic Name
Intrinsic Name A brief summary of the purpose of the intrinsic is listed
next to the intrinsic name at the top of the first page of explanation for
each intrinsic.
Syntax
The syntax statement contains the complete intrinsic call description.
The intrinsic call descriptions are in the format shown below:
16V I16V *
FFILEINFO(filenum [,
itemnum,item
[,
itemnum,item
[,
itemnum,item
[,
itemnum,item
[,
itemnum,item
]]]]]);
Required parameters, such as filenum, are shown in boldface.
Optional parameters, such as
itemnum
and
item
, are shown in
italics
. The mnemonics that appear over the parameters indicate
their type and whether they are passed by reference (the default) or by
value. The mnemonics applicable to the intrinsics described in this
manual are listed below, along with their meanings:
MNEMONIC MEANING
I16 16-bit signed integer
I32 32-bit signed integer
U16 16-bit signed integer
C character
A array
UDS user-defined structure
@32 32-bit address
* type varies