3.9 KiB
vim-asm_ca65
Vim plugin for the ca65
assembly language.
Purpose
This repository provides a Vim
syntax-highlighting plugin, auto-indent plugin, and filetype plugin for the
ca65
assembly language.
ca65
is a full-featured assembler for the MOS
6502 family of
microprocessors, which powered such historic platforms as the KIM I, Apple II,
Commodore 64, and Nintendo Entertainment System. It is a part of the popular
cc65
suite of development tools for the 6502,
which also includes a C compiler, linker, object dumper, etc. ca65
is
designed both for direct use by assembly programmers and as the compilation
target of the cc65
C compiler. ca65
is especially used by "homebrew"
communities for the NES, SNES, etc.
The stock Vim runtime distribution includes syntax modules for several dialects
of assembly, as well as a "generic" module (which is really for the GNU
Assembler), none of which works particularly well with 6502 assembly
conventions, and especially not with ca65
's many added features.
Features
- Syntax highlighting
- Highlights 6502 instruction mnemonics as keywords, with special highlighting for "illegal" instructions, and error highlighting for unknown (typo) instructions.
- Highlights all valid
ca65
numeric and string literals, label definitions, and comments, with special highlighting for TODOs, FIXMEs, etc. - Highlights all valid expression operators and control comands, with special
treatment for various classes of commands, including
.fileopt
, segment names, includes, macro definitions, storage types, conditional assembly, linker control commands, structs, unions, procedures, pseudo-functions, some built-in macros, console output commands (.out
,.warn
, .etc.), and assembler behavior switches.
- Auto-indent
- Auto-indent under labels,
.proc
s,.if
statements, macro definitions, macro call parameters, scopes, unions, and structs. Automatically de-dent when closing these structures.
- Auto-indent under labels,
- Filetype plugin
- Defines
ca65
comment syntax for Vim's automatic comment formatting features. - Recognizes
.include
,.incbin
, and.macpack
statements for Vim's include-aware features.
- Defines
Examples (screenshots)
Solarized colorscheme
Elflord colorscheme
Limitations
asm_ca65.vim
currently has no awareness of, or support for, assembler options that change the rules of valid labels, identifiers, and literals from their defaults, for example the following.feature
options and related command-line switches toca65
..feature at_in_identifiers
.feature dollar_in_identifiers
.feature labels_without_colons
.feature underline_in_numbers
Installation and Usage
Install in the normal way (i.e., place the contents of the syntax/
, indent
/
and ftplugin/
directories in corresonding locations in your vim runtime
path), or, if you use Pathogen, clone
this repository under ~/.vim/bundle/
.
Everything is enabled by setting a buffer's filetype
to asm_ca65
. For
example, if all of your ca65
assembly source files end with the .s
and
.inc.
, suffixes, the follwing suffices in your .vimrc
:
filetype plugin indent on
augroup filetypedetect
au BufNewFile,BufRead *.s,*.inc set ft=asm_ca65
augroup END