1 /* @(#) pf_save.h 96/12/18 1.8 */
5 /***************************************************************
6 ** Include file for PForth SaveForth
9 ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom
11 ** Permission to use, copy, modify, and/or distribute this
12 ** software for any purpose with or without fee is hereby granted.
14 ** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
15 ** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
16 ** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
17 ** THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
18 ** CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
19 ** FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
20 ** CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 ** OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 ** 941031 rdg fix redefinition of MAKE_ID and EVENUP to be conditional
25 ***************************************************************/
28 typedef struct DictionaryInfoChunk
30 /* All fields are stored in BIG ENDIAN format for consistency in data files.
31 * All fields must be the same size for easy endian conversion.
32 * All fields must be 32 bit for file compatibility with older versions.
35 int32_t sd_RelContext; /* relative ptr to Dictionary Context */
36 int32_t sd_RelHeaderPtr; /* relative ptr to Dictionary Header Ptr */
37 int32_t sd_RelCodePtr; /* relative ptr to Dictionary Header Ptr */
38 int32_t sd_EntryPoint; /* relative ptr to entry point or NULL */
39 int32_t sd_UserStackSize; /* in bytes */
40 int32_t sd_ReturnStackSize; /* in bytes */
41 int32_t sd_NameSize; /* in bytes */
42 int32_t sd_CodeSize; /* in bytes */
43 int32_t sd_NumPrimitives; /* To distinguish between primitive and secondary. */
45 int32_t sd_FloatSize; /* In bytes. Must match code. 0 means no floats. */
46 int32_t sd_CellSize; /* In bytes. Must match code. */
47 } DictionaryInfoChunk;
49 /* Bits in sd_Flags */
50 #define SD_F_BIG_ENDIAN_DIC (1<<0)
53 #define MAKE_ID(a,b,c,d) ((((uint32_t)a)<<24)|(((uint32_t)b)<<16)|(((uint32_t)c)<<8)|((uint32_t)d))
56 #define ID_FORM MAKE_ID('F','O','R','M')
57 #define ID_P4TH MAKE_ID('P','4','T','H')
58 #define ID_P4DI MAKE_ID('P','4','D','I')
59 #define ID_P4NM MAKE_ID('P','4','N','M')
60 #define ID_P4CD MAKE_ID('P','4','C','D')
61 #define ID_BADF MAKE_ID('B','A','D','F')
64 #define EVENUP(n) ((n+1)&(~1))
71 cell_t ffSaveForth( const char *FileName, ExecToken EntryPoint, cell_t NameSize, cell_t CodeSize );
73 /* Endian-ness tools. */
74 int IsHostLittleEndian( void );
76 ucell_t ReadCellBigEndian( const uint8_t *addr );
77 uint32_t Read32BigEndian( const uint8_t *addr );
78 uint16_t Read16BigEndian( const uint8_t *addr );
80 ucell_t ReadCellLittleEndian( const uint8_t *addr );
81 uint32_t Read32LittleEndian( const uint8_t *addr );
82 uint16_t Read16LittleEndian( const uint8_t *addr );
84 void WriteCellBigEndian( uint8_t *addr, ucell_t data );
85 void Write32BigEndian( uint8_t *addr, uint32_t data );
86 void Write16BigEndian( uint8_t *addr, uint16_t data );
88 void WriteCellLittleEndian( uint8_t *addr, ucell_t data );
89 void Write32LittleEndian( uint8_t *addr, uint32_t data );
90 void Write16LittleEndian( uint8_t *addr, uint16_t data );
93 void WriteFloatBigEndian( PF_FLOAT *addr, PF_FLOAT data );
94 PF_FLOAT ReadFloatBigEndian( const PF_FLOAT *addr );
95 void WriteFloatLittleEndian( PF_FLOAT *addr, PF_FLOAT data );
96 PF_FLOAT ReadFloatLittleEndian( const PF_FLOAT *addr );
103 #endif /* _pforth_save_h */