SW500009 Microchip Technology, SW500009 Datasheet - Page 109

• Manufacturer Part Number: SW500009
• Description: HI-TECH FOR DSPIC/PIC24
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC24 & DsPICr

Specifications of SW500009

• Supported Families: PIC24
• Core Architecture: PIC, DsPIC
• Software Edition: Standard
• Kit Contents: Software And Docs
• Tool Type: Compiler
• Mcu Supported Families: PIC24 MCUs And DsPIC DSCs
• Lead Free Status / RoHS Status: Not applicable / RoHS Compliant
• For Use With/related Products: DSPIC3X/PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 025; 778-1003; 778-1003

Macro Assembler
4.3.8.4 ORG
The ORG directive changes the value of the location counter within the current psect. This means that
the addresses set with ORG are relative to the base address of the psect, which is not determined
until link time.
The argument to ORG must be either an absolute value, or a value referencing the current psect. In
either case the current location counter is set to the value determined by the argument. It is not
possible to move the location counter backward. For example:
will move the location counter to the beginning of the current psect plus 100h. The actual location
will not be known until link time.
must be used from within an absolute, overlaid psect. For example:
4.3.8.5 EQU
This pseudo-op defines a symbol and equates its value to an expression. For example
The identifier thomas will be given the value 123h. EQU is legal only when the symbol has not
previously been defined. See also Section 4.3.8.6.
4.3.8.6 SET
This pseudo-op is equivalent to EQU except that allows a symbol to be re-defined. For example
In order to use the ORG directive to set the location counter to an absolute value, the directive
The much-abused ORG directive does not necessarily move the location counter to the
absolute address you specify as the operand. This directive is rarely needed in programs.
ORG 100h
PSECT absdata,abs,ovrld
thomas EQU 123h
thomas SET 0h
ORG 50h
HI-TECH C Assembly Language
95