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/* sizes.h - target scalar type sizes for bcc */
/* Copyright (C) 1992 Bruce Evans */
/*
the compiler is not very portable in this area
it only directly supports I8088-I80386 and MC6809
it assumes
sizeof(source long) >= sizeof(target long)
usual register size = int
long = 2 int sizes
*/
#define CHBITSTO 8 /* bits in a character */
#define CHMASKTO 0xFF /* mask to reduce SOURCE int to TARGET uchar */
#define INT16BITSTO 16 /* not accessed in non-16 bit case */
#define INT32BITSTO 32 /* not accessed in non-32 bit case */
#define MAXINTBITSTO 32 /* max bits in an integer (var processors) */
#define MAXSCHTO 127 /* maximum signed character */
#define MAXUCHTO 255 /* maximum unsigned character */
#define MINSCHTO (-128) /* minimum signed character */
#ifdef MC6809
# define is5bitoffset(n) ((uoffset_t) (n) + 0x10 < 0x20)
#endif
#define isbyteoffset(n) ((uoffset_t) (n) - MINSCHTO <= MAXSCHTO - MINSCHTO)
#define ischarconst(n) ((uvalue_t) (n) <= MAXUCHTO)
#define isnegbyteoffset(n) ((uvalue_t) (n) + MAXSCHTO <= MAXSCHTO - MINSCHTO)
#define isshortbranch(n) ((uoffset_t) (n) - MINSCHTO <= MAXSCHTO - MINSCHTO)
#ifdef MC6809
/* Hack to reduce number of direct page variables. */
#define intmaskto ((uvalue_t) 0xFFFFL)
#define maxintto ((uvalue_t) 0x7FFFL)
#define maxlongto ((uvalue_t) 0x7FFFFFFFL)
#define maxoffsetto ((uvalue_t) 0x7FFFL)
#define maxshortto ((uvalue_t) 0x7FFFL)
#define maxuintto ((uvalue_t) 0xFFFFL)
#define maxushortto ((uvalue_t) 0xFFFFL)
#define shortmaskto ((uvalue_t) 0xFFFFL)
#else
extern uvalue_t intmaskto; /* mask for ints */
extern uvalue_t maxintto; /* maximum int */
extern uvalue_t maxlongto; /* maximum long */
extern uvalue_t maxoffsetto; /* maximum offset */
extern uvalue_t maxshortto; /* maximum short */
extern uvalue_t maxuintto; /* maximum unsigned */
extern uvalue_t maxushortto; /* maximum unsigned short */
extern uvalue_t shortmaskto; /* mask for shorts */
#endif
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