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ZBasic Language Reference

ZBasic Microcontrollers

Option.HeapSize

UnsignedInteger Indicates the specified or default heap size.

Option.Language

Specifies the language mode that is in effect.

Option.MainTaskStackSize

UnsignedInteger Indicates the specified size for the main task stack.

Indicates if object-oriented extensions are enabled.

Option.Overload

Indicates if procedure overloading is enabled.

Option.PortPinEncoding

Indicates port pin encoding is enabled.

Option.RTCEnabled

Indicates if the RTC is enabled for the target device.

Indicates if Strict mode is in effect.

Option.StringSize

Gives the default string size for static string allocation.

Option.TargetCode

The type of code being generated (“ZVM” or “Native”).

Option.TargetDevice

The device for which code is being compiled, e.g. “ZX24a”.

Option.TargetFamily

The family to which the target device belongs, e.g. “ATtiny”,

“ATmega” or “ATxmega”.

Option.TargetIsZX

Indicates if the target device is a ZX device.

Option.TargetMCU

Specifies the MCU used on the target device.

Option.TargetPackage

Specifies the package selected for a generic target device,

e.g. “DIP-40”. For ZX devices it is an empty string.

Specifies the timer used for IO on the target device.

Option.TimerRTC

Specifies the timer used for the RTC on the target device.

Specifies the timer used for SW UARTs on the target device.

Gives the pin designator for the green LED (if available).

Gives the pin designator for the red LED (if available).

Gives the pin designator for the yellow LED (if available).

System.JumpBufSize

Gives the size required for a buffer used for SetJmp().

System.MinQueueSize

Gives the minimum size for an array to be used for a queue.

Gives the major portion of the compiler version number.

Gives the minor portion of the compiler version number.

Version.Variant

Gives the variant portion of the compiler version number.

Gives the composite value of the compiler version number.

The value corresponding to v1.2.3 is &H010203.

Gives the compiler version number as a string, e.g. “1.2.3”.

With regard to the built-in constants referring to the version number, consider the version number v1.2.3.

In this version number, the major value is 1, the minor value is 2 and the variant is 3.

Additionally, for each target device there exists a set of built-in pin name constants of the form

<port>.<bit> where <port> is a letter (case insignificant) referring to an I/O port and <bit> is a digit

in the range 0-7 referring to a bit of the port. The value of the pin name is of type Byte and it may be the

pin number for the target device corresponding to that port bit or it may be an encoded port/pin designator

(as controlled by Option PortPinEncoding). For example, when the target device is ZX24, the pin

name C.7 has the value 5 if Option PortPinEncoding is off.

3.9 Conditional Compilation Directives

The ZBasic compiler supports conditional compilation. This means that you can add conditional

constructs to your code to specify that a portion of the code should be or should not be processed by the

compiler. This is useful in order to create source code that can be compiled in different ways. Such

flexibility can be used to create special versions of your application for different markets or for different

customers, etc. It also provides a fast way to logically remove blocks of code from your program while

leaving the source code intact so that it can be easily restored.

A key element of conditional compilation is the ability to define special identifiers and to give them values.

These identifiers can then be used in conditional expressions that control whether or not a block of code

will be processed normally by the compiler or ignored completely. The compiler supports the definition of

conditional identifiers on the command line but you can also define them in your source code as well

using the following syntax: