From ebc8086c9226bd5c7f3f42ca1a8212cfd5d8b4d0 Mon Sep 17 00:00:00 2001
From: Bill Joy <bill@ucbvax.Berkeley.EDU>
Date: Thu, 14 Aug 1980 01:55:57 -0800
Subject: [PATCH] date and time created 80/08/13 18:55:57 by bill

SCCS-vsn: old/as.vax/astoks.h 4.1
---
 usr/src/old/as.vax/astoks.h | 111 ++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 usr/src/old/as.vax/astoks.h

diff --git a/usr/src/old/as.vax/astoks.h b/usr/src/old/as.vax/astoks.h
new file mode 100644
index 0000000000..c389582e65
--- /dev/null
+++ b/usr/src/old/as.vax/astoks.h
@@ -0,0 +1,111 @@
+/* Copyright (c) 1980 Regents of the University of California */
+/* "@(#)astoks.h 4.1 %G%" */
+/*
+ *	Message to the wary:  The order of tokens has been
+ *	hand optimized and assigned to that all switch statements
+ *	are implemented by a casel instruction on the VAX. 
+ *	there are 4 switch statements that have to be worried about:
+ *	l)	Per character switch in the character scanner (scan_dot_s)
+ *	2)	Per token switch in the buffer manager (yylex)
+ *	3)	Per keyword switch in the parser (yyparse)
+ *	4)	Leading token switch for argments to opcodes
+ *	
+ *	You can't just add new tokens willy-nilly; make sure that you
+ *	add them into the proper order!
+ */
+# define FIRSTTOKEN	0
+
+/*
+ *	Tokens between ISPACE and INSTn are used by the per keyword switch
+ */
+# define ISPACE 	1
+# define IBYTE 		2
+# define IWORD 		3
+# define IINT 		4
+# define ILONG 		5
+# define IDATA 		6
+# define IGLOBAL 	7
+# define ISET 		8
+# define ITEXT 		9
+# define ICOMM 		10
+# define ILCOMM 	11
+# define IFLOAT 	12
+# define IDOUBLE 	13
+# define IORG 		14
+# define IASCII 	15
+# define IASCIZ 	16
+# define ILSYM 		17
+# define IFILE 		18
+# define ILINENO 	19
+# define IABORT 	20
+# define IFILL		21
+/*
+ *	Tokens between ISTAB and REG are used in the per token switch
+ */
+# define ISTAB 		23
+# define ISTABSTR 	24
+# define ISTABNONE 	25
+# define ISTABDOT 	26
+# define IJXXX 		27
+# define IALIGN 	28
+# define INST0 		29
+# define INSTn 		30
+
+# define BFINT		31
+# define PARSEEOF	32
+# define ILINESKIP	33
+# define VOID		34
+# define SKIP		35
+# define INT		36
+# define FLTNUM		37
+# define NAME		38
+# define STRING		39
+# define QUAD		40
+/*
+ *	Tokens between SIZESPEC and REGOP are used in the instruction
+ *	argument switch
+ */
+# define SIZESPEC 	41
+# define REG		42
+# define MUL		43
+# define LITOP		44
+# define LP		45
+# define MP		46
+/*	
+ *	Tokens between REGOP and DIV are used in the per character switch
+ */
+# define NEEDSBUF	48	/*signal refilling the input buffer*/
+# define REGOP		49	/*the percent sign*/
+# define NL		50
+# define SCANEOF	51
+# define BADCHAR	52
+# define SP		53
+# define ALPH		54
+# define DIG		55
+# define SQ		56
+# define DQ		57
+# define SH		58
+# define LSH		59
+# define RSH		60
+# define MINUS		61
+# define SIZEQUOTE	62
+/*
+ *	Tokens between XOR and RP are used at random (primarily by the
+ *	expression analyzer), and not used in any switch
+ */
+# define XOR		64
+# define DIV		65
+
+# define SEMI		66
+# define COLON		67
+# define PLUS		68
+# define IOR		69 
+# define AND		70
+# define TILDE		71
+# define ORNOT		72
+# define CM		73
+# define LB		74
+# define RB		75
+# define RP		76
+
+# define LASTTOKEN	80
-- 
2.20.1