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- /*
- * Copyright (c) 1987 University of Maryland Department of Computer Science.
- * All rights reserved. Permission to copy for any purpose is hereby granted
- * so long as this copyright notice remains intact.
- */
-
- /*
- * Macros to convert DVI opcodes to (hopefully) simpler values.
- */
-
- /*
- * Large range types.
- */
- #define DVI_IsChar(code) ((code) < 128)
- #define DVI_IsFont(code) ((code) >= 171 && (code) < 235)
-
- /*
- * Symbolic names for generic types (for things with parameters).
- * These are obtained via the macro DVI_DT(int c), where 0 <= c <= 255.
- */
- #define DT_CHAR 0
- #define DT_SET 1
- #define DT_SETRULE 2
- #define DT_PUT 3
- #define DT_PUTRULE 4
- #define DT_NOP 5
- #define DT_BOP 6
- #define DT_EOP 7
- #define DT_PUSH 8
- #define DT_POP 9
- #define DT_RIGHT 10
- #define DT_W0 11
- #define DT_W 12
- #define DT_X0 13
- #define DT_X 14
- #define DT_DOWN 15
- #define DT_Y0 16
- #define DT_Y 17
- #define DT_Z0 18
- #define DT_Z 19
- #define DT_FNTNUM 20
- #define DT_FNT 21
- #define DT_XXX 22
- #define DT_FNTDEF 23
- #define DT_PRE 24
- #define DT_POST 25
- #define DT_POSTPOST 26
- #define DT_UNDEF 27
-
- /*
- * Symbolic names for parameter lengths, obtained via the macro
- * DVL_OpLen(int c).
- *
- * N.B.: older drivers may assume that 0 => none, 1-4 => 1-4 bytes
- * and 5-7 => unsigned version of 1-4---so DO NOT change these values!
- */
- #define DPL_NONE 0
- #define DPL_SGN1 1
- #define DPL_SGN2 2
- #define DPL_SGN3 3
- #define DPL_SGN4 4
- #define DPL_UNS1 5
- #define DPL_UNS2 6
- #define DPL_UNS3 7
- /* there are no unsigned four byte parameters */
-
- #define DVI_OpLen(code) (dvi_oplen[code])
- #define DVI_DT(code) (dvi_dt[code])
- extern char dvi_oplen[];
- extern char dvi_dt[];
-