Ubuntu Manpage: 64tass - A multi pass optimizing macro assembler for the 65xx series of processors

NAME

       64tass - A multi pass optimizing macro assembler for the 65xx series of processors

SYNOPSIS

       64tass [OPTION]... [SOURCES]...

DESCRIPTION

       64tass  is  cross  assembler targeting the 65xx series of micro processors. This manual is
       only describing the command line options. The many features  are  described  in  the  HTML
       manual.

OPTIONS

Output options
-o filename, --output filename
Place output into filename. The default output filename is 'a.out', this option
changes it. May be used multiple times. The format is remembered but section and
memory map file reverts to global after each file.

--output-append filename
Append to output file instead of overwriting it.

--no-output
Same as output but no file will be written.

--map filename
Place memory map into filename instead of displaying it.

--map-append filename
Append memory map to a file instead of displaying it.

--no-map
The memory map won't be displayed or recorded.

--output-section sectionname
Output this section instead of everything

-X, --long-address
Use 3 byte address/length for CBM and nonlinear output instead of 2 bytes. Also
increases the size of raw output to 16 MiB.

--cbm-prg
Generate CBM format binaries (default). The first 2 bytes are the little endian
address of the first valid byte (start address). Overlapping blocks are flattened and
uninitialized memory is filled up with zeros. Uninitialized memory before the first
and after the last valid bytes are not saved. Up to 64 KiB or 16 MiB with long
address.

-b, --nostart
Output raw data only without start address. Overlapping blocks are flattened and
uninitialized memory is filled up with zeros. Uninitialized memory before the first
and after the last valid bytes are not saved. Up to 64 KiB or 16 MiB with long
address.

-f, --flat
Flat address space output mode. Overlapping blocks are flattened and uninitialized
memory is filled up with zeros. Uninitialized memory after the last valid byte is not
saved. Up to 4 GiB.

-n, --nonlinear
Generate nonlinear output file. Overlapping blocks are flattened. Blocks are saved
in sorted order and uninitialized memory is skipped. Up to 64 KiB or 16 MiB with long
address.

--atari-xex
Generate a Atari XEX output file. Overlapping blocks are kept, continuing blocks are
concatenated. Saving happens in the definition order without sorting, and
uninitialized memory is skipped in the output. Up to 64 KiB.

--apple2
Generate a Apple II output file (DOS 3.3). Overlapping blocks are flattened and
uninitialized memory is filled up with zeros. Uninitialized memory before the first
and after the last valid bytes are not saved. Up to 64 KiB.

--intel-hex
Use Intel HEX output file format. Overlapping blocks are kept, data is stored in the
definition order, and uninitialized areas are skipped. I8HEX up to 64 KiB, I32HEX up
to 4 GiB.

--s-record
Use Motorola S-record output file format. Overlapping blocks are kept, data is
stored in the definition order, and uninitialized memory areas are skipped. S19 up to
64 KiB, S28 up to 16 MiB and S37 up to 4 GiB.

Operation options
-a, --ascii
Use ASCII/Unicode text encoding instead of raw 8-bit. Normally no conversion takes
place, this is for backwards compatibility with a DOS based Turbo Assembler editor,
which could create PETSCII files for 6502tass. (including control characters of
course) Using this option will change the default 'none' and 'screen' encodings to
map 'a'-'z' and 'A'-'Z' into the correct PETSCII range of $41-$5A and $C1-$DA, which
is more suitable for an ASCII editor. It also adds predefined petcat style PETSCII
literals to the default encodings, and enables Unicode letters in symbol names. For
writing sources in UTF-8/UTF-16 encodings this option is required!

-B, --long-branch
Automatic BXX *+5 JMP xxx. Branch too long messages can be annoying sometimes,
usually they'll need to be rewritten to BXX *+5 JMP xxx. 64tass can do this
automatically if this option is used. But BRA is not converted.

-C, --case-sensitive
Make all symbols (variables, opcodes, directives, operators, etc.) case sensitive.
Otherwise everything is case insensitive by default.

-D label=value
Defines a label to a value. Same syntax is allowed as in source files. Be careful
with string quoting, the shell might eat some of the characters.

-q, --quiet
Suppress messages. Disables header and summary messages.

-T, --tasm-compatible
Enable TASM compatible operators and precedence Switches the expression evaluator
into compatibility mode. This enables '.', ':' and '!' operators and disables 64tass
specific extensions, disables precedence handling and forces 16 bit unsigned
evaluation (see 'differences to original Turbo Assembler' below)

-I path
Specify include search path. If an included source or binary file can't be found in
the directory of the source file then this path is tried. More than one directories
can be specified by repeating this option. If multiple matches exist the first one is
used.

-M file, --dependencies file
Specify make rule output file. Writes a dependency rule suitable for 'make' from the
list of files used during compilation.

--make-phony
Enable phony target generation for dependencies.

Diagnostic options
-E file, --error file
Specify error output file. Normally compilation errors a written to the standard
error output. It's possible to redirect them to a file or to the standard output by
using '-' as the file name.

--error-append file
Append to error file instead of overwriting it.

--no-error
Do not output any errors, just count them.

-w, --no-warn
Suppress warnings. Disables warnings during compile. Finer grained warning control is
available by using the -W options.

--no-caret-diag
Suppress displaying of faulty source line and fault position after fault messages.

--macro-caret-diag
Restrict source line and fault position display to macro expansions only.

-Wall
Enable most diagnostic warnings, except those individually disabled. Or with the
'no-' prefix disable all except those enabled.

-Werror
Make all diagnostic warnings to an error, except those individually set to a warning.

-Werror=<name>
Change a diagnostic warning to an error. For example '-Werror=implied-reg' makes
this check an error. The '-Wno-error=' variant is useful with '-Werror' to set some
to warnings.

-Walias
Warns about alias opcodes.

-Waltmode
Warn about alternative address modes. Sometimes alternative addressing modes are
used as the fitting one is not available. For example there's no lda direct page y so
instead data bank y is used with a warning.

-Wbranch-page
Warns if a branch is crossing a page. Page crossing branches execute with a penalty
cycle. This option helps to locate them.

-Wcase-symbol
Warn if symbol letter case is used inconsistently.

-Wimmediate
Warns for cases where immediate addressing is more likely. -Wimplied-reg Warns if
implied addressing is used instead of register. Some instructions have implied
aliases like 'asl' for 'asl a' for compatibility reasons, but this shorthand not the
preferred form.

-Wleading-zeros
Warns if about leading zeros. A leading zero could be a prefix for an octal number
but as octals are not supported so the result will be decimal.

-Wlong-branch
Warns when a long branch is used. This option gives a warning for instructions which
were modified by the long branch function. Less intrusive than disabling long
branches and see where it fails.

-Wmacro-prefix
Warn about macro call without prefix. Such macro calls can easily be mistaken to be
labels if invoked without parameters. Also it's hard to notice that an unchanged
call turned into label after the definition got renamed. This warning helps to find
such calls so that prefixes can be added.

-Wno-deprecated
Don't warn about deprecated features. Unfortunately there were some features added
previously which shouldn't have been included. This option disables warnings about
their uses.

-Wno-float-compare
Don't warn if floating point comparisons are only approximate. Floating point
numbers have a finite precision and comparing them might give unexpected results.

-Wno-float-round
Don't warn when floating point numbers are implicitly rounded. A lot of parameters
are expecting integers but floating point numbers are accepted as well. The style of
rounding used may or may not be what you wanted.

-Wno-ignored
Don't warn about ignored directives.

-Wno-jmp-bug
Don't warn about the jmp ($xxff) bug. It's fine that the high byte is read from the
'wrong' address on 6502, NMOS 6502 and 65DTV02.

-Wno-label-left
Don't warn about certain labels not being on left side. You may disable this if you
use labels which look like mistyped versions of implied addressing mode instructions
and you don't want to put them in the first column.

-Wno-page
Don't do an error for page crossing.

-Wno-pitfalls
Don't note on common pitfalls. Experts don't need notes about how to fix things ;)

-Wno-portable
Don't warn about source portability problems.

-Wno-size-larger
Don't warn if size is larger due to negative offset Negative offsets add space in
front of memory area that's out of bound. Sometimes this may be fine.

-Wno-star-assign
Don't warn about ignored compound multiply.

-Wno-wrap-addr
Don't warn about address space calculation wrap around. If a memory location ends up
outside of the processors address space then just wrap it around.

-Wno-wrap-bank0
Don't warn for bank 0 address calculation wrap around.

-Wno-wrap-dpage
Don't warn for direct page address calculation wrap around.

-Wno-wrap-mem
Don't warn for compile offset wrap around. Continue from the beginning of image file
once it's end was reached.

-Wno-wrap-pbank
Don't warn for program bank address calculation wrap around.

-Wno-wrap-pc
Don't warn for program counter bank crossing. If it's data only and the programmer
deals with it then this might be ok.

-Wold-equal
Warn about old equal operator. The single '=' operator is only there for
compatibility reasons and should be written as '==' normally.

-Woptimize
Warn about optimizable code. Warns on things that could be optimized, at least
according to the limited analysis done.

-Wshadow
Warn about symbol shadowing. Checks if local variables 'shadow' other variables of
same name in upper scopes in ambiguous ways.

-Wstrict-bool
Warn about implicit boolean conversions. Boolean values can be interpreted as
numeric 0/1 and other types as booleans. This is convenient but may cause mistakes.

-Wunused
Warn about unused constant symbols, any type.

-Wunused-const
Warn about unused constants.

-Wunused-label
Warn about unused labels.

-Wunused-macro
Warn about unused macros.

-Wunused-variable
Warn about unused variables.

Target selection options
--m65xx
Standard 65xx (default). For writing compatible code, no extra codes. This is the
default.

-c, --m65c02
CMOS 65C02. Enables extra opcodes and addressing modes specific to this CPU.

--m65ce02
CSG 65CE02. Enables extra opcodes and addressing modes specific to this CPU.

-i, --m6502
NMOS 65xx. Enables extra illegal opcodes. Useful for demo coding for C64, disk drive
code, etc.

-t, --m65dtv02
65DTV02. Enables extra opcodes specific to DTV.

-x, --m65816
W65C816. Enables extra opcodes. Useful for SuperCPU projects.

-e, --m65el02
65EL02. Enables extra opcodes, useful RedPower CPU projects. Probably you'll need
'--nostart' as well.

--mr65c02
R65C02. Enables extra opcodes and addressing modes specific to this CPU.

--mw65c02
W65C02. Enables extra opcodes and addressing modes specific to this CPU.

--m4510
CSG 4510. Enables extra opcodes and addressing modes specific to this CPU. Useful for
C65 projects.

Symbol listing options
-l file, --labels=file
List labels into file. May be used multiple times. The format is remembered but root
reverts to global after each file.

--labels-append=file
Append labels to file instead of overwriting it.

--labels-root=<path>
Specify the scope to list labels from.

--normal-labels
Lists labels in a 64tass readable format. (default)

--export-labels
List labels for include in a 64tass readable format. This will always compile
exported .proc/.pend blocks assuming they're needed externally.

--vice-labels
List labels in a VICE readable format.

--vice-labels-numeric
List labels in a VICE readable format, including numeric constants.

--dump-labels
List labels for debugging.

Assembly listing options
-L file, --list=file
List into file. Dumps source code and compiled code into file. Useful for debugging,
it's much easier to identify the code in memory within the source files.

--list-append=file
Append list to file instead of overwriting it.

-m, --no-monitor
Don't put monitor code into listing. There won't be any monitor listing in the list
file.

-s, --no-source
Don't put source code into listing. There won't be any source listing in the list
file.

--line-numbers
This option creates a new column for showing line numbers for easier identification
of source origin.

--tab-size=number
By default the listing file is using a tab size of 8 to align the disassembly. This
can be changed to other more favorable values like 4. Only spaces are used if 1 is
selected. Please note that this has no effect on the source code on the right hand
side.

--verbose-list
Normally the assembler tries to minimize listing output by omitting 'unimportant'
lines. But sometimes it's better to just list everything including comments and empty
lines.

Other options
-?, --help
Give this help list. Prints help about command line options.

--usage
Give a short usage message. Prints short help about command line options.

-V, --version
Print program version.

EXIT STATUS

       Normally the exit status is 0 if no error occurred.

AUTHOR

       Written by Zsolt Kajtar.

REPORTING BUGS

       Online bug tracker: <https://sourceforge.net/p/tass64/bugs/>

COPYRIGHT

       Copyright  ©  2023  Zsolt  Kajtar.   License  GPLv2+:  GNU  GPL   version   2   or   later
       <http://gnu.org/licenses/gpl.html>.
       This  is free software: you are free to change and redistribute it.  There is NO WARRANTY,
       to the extent permitted by law.