FALSE

LOW(BOOLEAN); ORD(FALSE) = 0.

TRUE

HIGH(BOOLEAN); ORD(TRUE) = 1.

NIL

Pointer to nothing; ORD(NIL) = 0.

MAXINT

HIGH(INTEGER) = 32 767 = $7FFF.

MININT

LOW(INTEGER) = -32 768 = $8000.

MAXWORD

HIGH(WORD) = 65 535 = $FFFF.

MINWORD

LOW(WORD) = 0.

MAXLONGINT

HIGH(LONGINT) = 2 147 483 647 = $7FFF FFFF.

MINLONGINT

.LOW(LONGINT) = -2 147 483 648 = $8000 0000.

MAXLONGWORD

HIGH(LONGWORD) = 4 294 967 295 = $FFFF FFFF.

MINLONGWORD

LOW(LONGWORD) = 0.

MAXBIGINT

HIGH(BIGINT) = 9 223 372 036 854 775 807 = $7FFF FFFF FFFF FFFF

MINBIGINT

LOW(BIGINT) = -9 223 372 036 854 775 808 = $8000 0000 0000 0000.

MAXBIGWORD

HIGH(BIGWORD) = 18 446 744 073 709 551 615 = $FFFF FFFF FFFF FFFF.

MINBIGWORD

LOW(BIGWORD) = 0.

PI

The value of PI, in the maximum PMP's FP precision (REAL format) that gives a 32-bit mantissa plus the sign bit. This is a true constant, not a computed value.

FREQUENCY

This constant returns the current selected processor frequency in Hz.

VERSION

This constant returns the PMP compiler version in a numerical form. This is especially useful in $IF conditional defines to compile for specific PMP versions (mainly to workaround bugs or prepare future compatibility).

If the version is Major.Minor.Revision, the returned value is:

Major * 1000 + Minor * 100 + Revision. e.g.: V2.1.12 returns 2112, V2.0.6 returns 2006.

This is slightly different from the standard TP or Delphi that defines a conditional symbol like VERxxx.

VERSION_MAJOR

NEW! (V2.1) This constant returns the PMP compiler major part of its version in a numerical form. e.g.: V2.1.0 returns 2.

VERSION_MINOR

NEW! (V2.1) This constant returns the PMP compiler minor part of its version in a numerical form. e.g.: V2.1.0 returns 1.

VERSION_REVISION

NEW! (V2.1) This constant returns the PMP compiler revision part of its version in a numerical form. e.g.: V2.1.0 returns 0.

VERSION_BUILD

NEW! (V2.1) This constant returns the PMP compiler build part of its version in a numerical form. e.g.: V2.1.0.28 returns 28.

VERSION_STRING

Compiler version string as 'Major.Minor.Revision'.

PROJECT_VERSION_MAJOR

NEW! (V2.1) This constant returns the Project's major part of its version in a numerical form. e.g.: V1.2.3.4 returns 1.

PROJECT_VERSION_MINOR

NEW! (V2.1) This constant returns the Project's minor part of its version in a numerical form. e.g.: V1.2.3.4 returns 2.

PROJECT_VERSION_REVISION

NEW! (V2.1) This constant returns the Project's revision part of its version in a numerical form. e.g.: V1.2.3.4 returns 3.

PROJECT_VERSION_BUILD

NEW! (V2.1) This constant returns the Project's build part of its version in a numerical form. e.g.: V1.2.3.4 returns 4.

PROJECT_VERSION_STRING

NEW! (V2.1) Compiler version string as 'Major.Minor.Revision'.

IDLOCS[<index>]

This pseudo array returns or sets the defined user ID value of <index> that is a constant expression evaluated as 0..n, depending on the processor. On some processors this pseudo variable is writable. On small processors (say: BASELINE) this pseudo array is not readable: in this case PMP uses values defined at compile time, otherwise the current user ID is read from the code flash memory.

For compatibility with older versions of PMP, IDLOC is maintained as an alias of IDLOCS.

MEMAVAIL

This variable (read only) returns the currently available dynamic memory (heap), in bytes. Dynamic memory is implemented for PIC18 and PIC16 enhanced only.

INSTR_TIME

REAL - Instruction duration in µs.

INSTR_TIME_NS

REAL - Instruction duration in ns.