90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
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/********************************************
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sizes.h
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copyright 1991, 1992. Michael D. Brennan
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This is a source file for mawk, an implementation of
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the AWK programming language.
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Mawk is distributed without warranty under the terms of
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the GNU General Public License, version 2, 1991.
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********************************************/
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/* $Log: sizes.h,v $
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/* Revision 1.2 1993/07/02 23:57:56 jtc
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/* Updated to mawk 1.1.4
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/*
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* Revision 5.3 1992/12/17 02:48:01 mike
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* 1.1.2d changes for DOS
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*
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* Revision 5.2 1992/08/27 03:20:08 mike
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* patch2: increase A_HASH_PRIME
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*
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* Revision 5.1 1991/12/05 07:59:35 brennan
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* 1.1 pre-release
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*
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*/
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/* sizes.h */
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#ifndef SIZES_H
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#define SIZES_H
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#if ! HAVE_SMALL_MEMORY
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#define EVAL_STACK_SIZE 256 /* initial size , can grow */
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/* number of fields at startup, must be a power of 2
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and FBANK_SZ-1 must be divisible by 3! */
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#define FBANK_SZ 256
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#define FB_SHIFT 8 /* lg(FBANK_SZ) */
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#define NUM_FBANK 128 /* see MAX_FIELD below */
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#else /* have to be frugal with memory */
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#define EVAL_STACK_SIZE 64
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#define FBANK_SZ 64
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#define FB_SHIFT 6 /* lg(FBANK_SZ) */
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#define NUM_FBANK 16 /* see MAX_FIELD below */
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#endif
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#define MAX_SPLIT (FBANK_SZ-1) /* needs to be divisble by 3*/
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#define MAX_FIELD (NUM_FBANK*FBANK_SZ - 1)
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#define MIN_SPRINTF 400
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#define BUFFSZ 4096
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/* starting buffer size for input files, grows if
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necessary */
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#if LM_DOS
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/* trade some space for IO speed */
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#undef BUFFSZ
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#define BUFFSZ 8192
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/* maximum input buffers that will fit in 64K */
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#define MAX_BUFFS ((int)(0x10000L/BUFFSZ) - 1)
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#endif
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#define HASH_PRIME 53
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#if ! HAVE_SMALL_MEMORY
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#define A_HASH_PRIME 199
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#else
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#define A_HASH_PRIME 37
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#endif
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#define MAX_COMPILE_ERRORS 5 /* quit if more than 4 errors */
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/* AWF showed the need for this */
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#define MAIN_PAGE_SZ 4096 /* max instr in main block */
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#if 0
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#define PAGE_SZ 1024 /* max instructions for other blocks */
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#endif
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/* these used to be different */
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#define PAGE_SZ 4096
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#endif /* SIZES_H */
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