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The problem occurs when \@ is accessed outside the definition of a
macro and is not between "" or {}, or when it is used in an argument of
a macro call, i.e. when the access is processed by PutUniqueArg().
PutUniqueArg(), puts back the string value of \@ to the lexer's buffer
(to substitute \@ by the unique label string).
When \@ is not defined, sym_FindMacroArg(-1) returns NULL, which
yyunputstr() doesn't expect and crashes.
Solution:
Generate an error when \@ is not defined.
Regression test:
SECTION "HOME", HOME
ld a,\@
Will segfault.
On the fixed version, it will return an error as \@ is not available.
----------------
RGBDS README
----------------
RGBDS (Rednex Game Boy Development System) is a free assembler/linker package
for the Game Boy and Game Boy Color. It consists of:
- rgbasm (assembler)
- rgblink (linker)
- rgbfix (checksum/header fixer)
rgbds-linux is a fork of the original RGBDS which aims to make the programs
more like other UNIX tools.
Installing RGBDS (UNIX)
=========================
To build the programs on a UNIX or UNIX-like system, just run in your terminal:
make
Then to install the compiled programs and manual pages, run (with appropriate
privileges):
make install
After installation, you can read the manuals with the man(1) command. E.g.,
man 1 rgbasm
Note: the variables described below can affect installation behavior when given
on the make command line. For example, to install rgbds in your home directory
instead of systemwide, run the following:
mkdir -p $HOME/{bin,man/man1,man/man7}
make install PREFIX=$HOME
PREFIX: Location where RGBDS will be installed. Defaults to /usr/local.
BINPREFIX: Location where the RGBDS programs will be installed. Defaults
to ${PREFIX}/bin.
MANPREFIX: Location where the RGBDS man pages will be installed. Defaults
to ${PREFIX}/man.
Q: Whether to quiet the build or not. To make the build more verbose, clear
this variable. Defaults to @.
Installing RGBDS (Windows)
============================
Windows builds are available here: http://anthony.bentley.name/rgbds/
Copy the .exe files to C:\Windows\ or similar.