MPE/iX Quick Reference Guide (32650-90881)

Chapter 3 95
Intrinsics Descriptions
Descriptions of the Intrinsics Available in MPE/iX
Provides access to specified peripheral functionality without the device being opened.
Allows access to device utilities; not for general control (for example, reading or writing).
Nonshareable device (ND) capability is required.
I32 CA I32 I32
HPDEVCONTROL( status,ldev,itemnum , item );
HPENBLTRAP
NM callable only.
Selectively enables or disables arithmetic traps.
I32V I32
HPENBLTRAP( mask,oldmask );
HPERRDEPTH
NM callable only.
Returns the current depth of the process error stack.
I32 I32
HPERRDEPTH( depth , status );
HPERRMSG
NM callable only.
Obtains or displays error messages from the system catalog.
I32V I32V I16 I32V CA I16 I32
HPERRMSG( displaycode , depth, errorproc,
errornum, buffer, buflength,status );
HPERRREAD
NM callable only.
Reads any specified error from the process stack.
I32V I32 I32 I32
HPERRREAD( depth,errornum , procnum,status
HPFADDTOPOINTER
NM callable only.
This routine can be used to perform arithmetic on a 64-bit pointer value. Byte offsets can
be added to or subtracted from a pointer by specifying either a positive or negative offset
value.
@64 I64 @64 I32
HPFADDTOPOINTER(base_ptr, offset , return_ptr , status ,