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/*
* Copyright (c) 1987, 1989 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---code may be any value (including EOF).
*/
#define DVI_IsChar(code) ((ui32)(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[];
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