GENASSYM.CF(5)						      BSD File Formats Manual						    GENASSYM.CF(5)

NAME

     genassym.cf -- assym.h definition file

DESCRIPTION

     The genassym.cf file is used by genassym(1) to make constant C expressions known to assembler source files.  Lines starting with '#' are dis-
     carded by genassym(1).  Lines starting with include, ifdef, if, else or endif are preceded with '#' and passed otherwise unmodified to the C
     compiler.	Lines starting with quote get passed on with the quote command removed.  The first word after a define command is taken as a CPP
     identifier and the rest of the line has to be a constant C expression. The output of genassym(1) will assign the numerical value of this
     expression to the CPP identifier.	export X is a shorthand for define X X.  struct X remembers X for the member command and does a define
     X_SIZEOF sizeof(X).  member X does a define X offsetof(<last struct>, X).	config <ctype> <gcc constraint> <asm print modifier> can be used
     to customize the output of genassym(1).  When producing C output, values are casted to <ctype> (default: long) before they get handed to
     printf. <gcc constraint> (default: n) is the constraint used in the __asm__ statements. <asm print modifier> (default: empty) can be used to
     force gcc to output operands in different ways then normal. The "a" modifier e.g. stops gcc from emitting immediate prefixes in front of con-
     stants for the i386 and m68k port.

FILES

     /usr/src/sys/arch/${MACHINE}/${MACHINE}/genassym.cf

SEE ALSO

     genassym(1)

HISTORY

     The genassym.cf file appeared in NetBSD 1.3.

BSD
								  August 18, 2005							       BSD