Initial release of this document,
based on the assembler chapter from the MPLAB® XC8 C Compiler User's Guide (DS50002737).
Revision B (September 2021)
Added screen captures of the MPLAB X IDE project property dialogs corresponding
to the assembler command-line options
Added information on new BANKISEL directive
Added information on previously undocumented FILE and
LINE assembler directives
Added description of string support for the DB,
DW, and DDW assembler directives
Updated information relating to
the quoting of arguments for the CONFIG directive
Added updated information on Hexmate's handling of INHX16 format HEX files
Added new O suboption to Hexmate's -CK option
which requests the final hash result be XORed with a the specified value
Revision C (May 2022)
Added new --fixupoverflow linker option that performs automatic
masking of instruction operand values, and highlighted the use of this option as
an alternative to the use of manual address masking in assembly code
examples.
Expanded information on how to access SFRs from assembly code
Expanded description of assembler labels
Added MPLAB X IDE Memory options dialog and description
Updated MPLAB X IDE Output options dialog and description
Added description of
-c linker option to control callgraph
Added description of entry ranges associated with the -A linker
option, applicable for Baseline devices
Added description of
-k linker option to prevent the overlay of auto/parameter
blocks defined in assembly code
Added dedicated descriptions for the FN-type compiled stack assembler
directives
Added section for the PUBLIC directive
Added a section on the use of long command lines with the
pic-as assembler driver
Updated --edf option to reflect the new name used for message
description file
Updated error and warning messages to reflect new and changed messages produced
by the compiler/assembler
Removed references to temporary
labels, which are not supported
Revision D (December 2023)
Added new -Werror option, which promotes warnings into
errors
Clarified that the program location counter cannot be used in
EQU assembly expressions
Removed information stating that the nul operator can be used
within an assembly macro
Corrected an example in the -A linker option
Added new xor
suboption to the -mchecksum option, which allows XORing of hash
results
Reinstated text that described how the -Wl, option can be used
to replace default linker options
Updated --edf linker/Hexmate option to reflect the new name
used for message description file
Added new or missing error and
warning messages
Altered the description of
messages 1604 and 1605 to indicate that the compiler now treats these as
advisories
Various updates to the Hexmate
chapter, those being:
Added description of the
Intel HEX file specification, as interpreted by Hexmate
Discussed Intel HEX file
formats used by Microchip tools
Updated and better
presented allowable hash widths for all supported algorithms
Added SHA-1 to list of
support hash algorithms
Added new
--werror option, which promotes warnings to
errors
Added list of error and
warning messages pertinent to Hexmate
Expanded Potential Causes
of Failure section to include situations where software breakpoints have
been used
Corrected maximum record
length allowable with the -format option
General improvements to
the descriptions of Hexmate operations and options
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
