SW500007 Microchip Technology, SW500007 Datasheet - Page 106

• Manufacturer Part Number: SW500007
• Description: PICC-18 PRO
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC18r

Specifications of SW500007

• Supported Families: PIC18
• Core Architecture: PIC
• Software Edition: Professional
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC18
• Tool Function: Compiler
• Tool Type: Compiler
• Lead Free Status / RoHS Status: Not applicable / RoHS Compliant
• For Use With/related Products: PIC18 Series
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 015P; 778-1002; 778-1002

HI-TECH C Assembly Language
4.3.5.3 Location Counter
The current location within the active program section is accessible via the symbol $. This symbol
expands to the address of the currently executing instruction. Thus:
will represent code that will jump to itself and form an endless loop. By using this symbol and an
offset, a relative jump destination to be specified.
number of instructions. For example:
will skip one instruction.
4.3.5.4 Register Symbols
Code in assembly modules may gain access to the special function registers by including pre-defined
assembly header files. The appropriate file can be included by add the line:
to the assembler source file. Note that the file must be included using a C pre-processor directive and
hence the option to pre-process assembly files must be enabled when compiling, see Section 2.4.12.
This header file contains appropriate commands to ensure that the header file specific for the target
device is included into the souce file.
macros for named bits within byte registers.
4.3.5.5 Symbolic Labels
A label is symbolic alias which is assigned a value equal to its offset within the current psect.
tion may appear on a line by itself or be positioned before a statement. Here are two examples of
legitimate labels interspersed with assembly code.
92
The address represented by $ is a word address and thus any offset to this symbol represents a
These header files contain EQU declarations for all byte or multi-byte sized registers and #define
A label definition consists of any valid assembly identifier followed by a colon, :. The defini-
goto $
goto $+1
movlw 8
movwf _foo
#include <aspic18.h>
frank:
simon44:
movlw 1
goto fin
clrf _input
Macro Assembler