Initial commit

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/evvexpr.h b/lib/evvexpr.h
new file mode 100644
index 00000000..c37ded5f
--- /dev/null
+++ b/lib/evvexpr.h
@@ -0,0 +1,24 @@
+# EVVEXPR.H -- Expression evaluation definitions; operand structure.
+
+define	LEN_OPERAND	6			# size of operand structure
+define	NTYPES		7			# bcsilrd, bool stored as int
+define	YYOPLEN		LEN_OPERAND		# for the parser
+
+define	O_TYPE		Memi[($1)]		# operand type
+define	O_LEN		Memi[($1)+1]		# operand length, if array
+define	O_FLAGS		Memi[($1)+2]		# flag bits
+			# align
+define	O_VALC		Memc[Memi[($1)+4]]	# string val (in string buffer)
+define	O_VALS		Mems[P2S(($1)+4)]	# short int value
+define	O_VALI		Memi[($1)+4]		# bool or int value
+define	O_VALL		Meml[P2L(($1)+4)]	# long int value
+define	O_VALR		Memr[P2R(($1)+4)]	# real value
+define	O_VALD		Memd[P2D(($1)+4)]	# double value
+define	O_VALP		Memi[($1)+4]		# pointer
+
+# Operand flags.
+define	O_FREEVAL	000001			# free data vector
+define	O_FREEOP	000002			# free operand struct
+
+# evvexpr flags.
+define	EV_RNGCHK	000001			# divzero etc.