| 1 | /* @(#) pf_save.h 96/12/18 1.8 */ |
| 2 | #ifndef _pforth_save_h |
| 3 | #define _pforth_save_h |
| 4 | |
| 5 | /*************************************************************** |
| 6 | ** Include file for PForth SaveForth |
| 7 | ** |
| 8 | ** Author: Phil Burk |
| 9 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom |
| 10 | ** |
| 11 | ** The pForth software code is dedicated to the public domain, |
| 12 | ** and any third party may reproduce, distribute and modify |
| 13 | ** the pForth software code or any derivative works thereof |
| 14 | ** without any compensation or license. The pForth software |
| 15 | ** code is provided on an "as is" basis without any warranty |
| 16 | ** of any kind, including, without limitation, the implied |
| 17 | ** warranties of merchantability and fitness for a particular |
| 18 | ** purpose and their equivalents under the laws of any jurisdiction. |
| 19 | ** |
| 20 | ** 941031 rdg fix redefinition of MAKE_ID and EVENUP to be conditional |
| 21 | ** |
| 22 | ***************************************************************/ |
| 23 | |
| 24 | |
| 25 | typedef struct DictionaryInfoChunk |
| 26 | { |
| 27 | /* All fields are stored in BIG ENDIAN format for consistency in data files. |
| 28 | * All fields must be the same size for easy endian conversion. |
| 29 | * All fields must be 32 bit for file compatibility with older versions. |
| 30 | */ |
| 31 | int32_t sd_Version; |
| 32 | int32_t sd_RelContext; /* relative ptr to Dictionary Context */ |
| 33 | int32_t sd_RelHeaderPtr; /* relative ptr to Dictionary Header Ptr */ |
| 34 | int32_t sd_RelCodePtr; /* relative ptr to Dictionary Header Ptr */ |
| 35 | int32_t sd_EntryPoint; /* relative ptr to entry point or NULL */ |
| 36 | int32_t sd_UserStackSize; /* in bytes */ |
| 37 | int32_t sd_ReturnStackSize; /* in bytes */ |
| 38 | int32_t sd_NameSize; /* in bytes */ |
| 39 | int32_t sd_CodeSize; /* in bytes */ |
| 40 | int32_t sd_NumPrimitives; /* To distinguish between primitive and secondary. */ |
| 41 | uint32_t sd_Flags; |
| 42 | int32_t sd_FloatSize; /* In bytes. Must match code. 0 means no floats. */ |
| 43 | int32_t sd_CellSize; /* In bytes. Must match code. */ |
| 44 | } DictionaryInfoChunk; |
| 45 | |
| 46 | /* Bits in sd_Flags */ |
| 47 | #define SD_F_BIG_ENDIAN_DIC (1<<0) |
| 48 | |
| 49 | #ifndef MAKE_ID |
| 50 | #define MAKE_ID(a,b,c,d) ((((uint32_t)a)<<24)|(((uint32_t)b)<<16)|(((uint32_t)c)<<8)|((uint32_t)d)) |
| 51 | #endif |
| 52 | |
| 53 | #define ID_FORM MAKE_ID('F','O','R','M') |
| 54 | #define ID_P4TH MAKE_ID('P','4','T','H') |
| 55 | #define ID_P4DI MAKE_ID('P','4','D','I') |
| 56 | #define ID_P4NM MAKE_ID('P','4','N','M') |
| 57 | #define ID_P4CD MAKE_ID('P','4','C','D') |
| 58 | #define ID_BADF MAKE_ID('B','A','D','F') |
| 59 | |
| 60 | #ifndef EVENUP |
| 61 | #define EVENUP(n) ((n+1)&(~1)) |
| 62 | #endif |
| 63 | |
| 64 | #ifdef __cplusplus |
| 65 | extern "C" { |
| 66 | #endif |
| 67 | |
| 68 | cell_t ffSaveForth( const char *FileName, ExecToken EntryPoint, cell_t NameSize, cell_t CodeSize ); |
| 69 | |
| 70 | /* Endian-ness tools. */ |
| 71 | int IsHostLittleEndian( void ); |
| 72 | |
| 73 | ucell_t ReadCellBigEndian( const uint8_t *addr ); |
| 74 | uint32_t Read32BigEndian( const uint8_t *addr ); |
| 75 | uint16_t Read16BigEndian( const uint8_t *addr ); |
| 76 | |
| 77 | ucell_t ReadCellLittleEndian( const uint8_t *addr ); |
| 78 | uint32_t Read32LittleEndian( const uint8_t *addr ); |
| 79 | uint16_t Read16LittleEndian( const uint8_t *addr ); |
| 80 | |
| 81 | void WriteCellBigEndian( uint8_t *addr, ucell_t data ); |
| 82 | void Write32BigEndian( uint8_t *addr, uint32_t data ); |
| 83 | void Write16BigEndian( uint8_t *addr, uint16_t data ); |
| 84 | |
| 85 | void WriteCellLittleEndian( uint8_t *addr, ucell_t data ); |
| 86 | void Write32LittleEndian( uint8_t *addr, uint32_t data ); |
| 87 | void Write16LittleEndian( uint8_t *addr, uint16_t data ); |
| 88 | |
| 89 | #ifdef PF_SUPPORT_FP |
| 90 | void WriteFloatBigEndian( PF_FLOAT *addr, PF_FLOAT data ); |
| 91 | PF_FLOAT ReadFloatBigEndian( const PF_FLOAT *addr ); |
| 92 | void WriteFloatLittleEndian( PF_FLOAT *addr, PF_FLOAT data ); |
| 93 | PF_FLOAT ReadFloatLittleEndian( const PF_FLOAT *addr ); |
| 94 | #endif |
| 95 | |
| 96 | #ifdef __cplusplus |
| 97 | } |
| 98 | #endif |
| 99 | |
| 100 | #endif /* _pforth_save_h */ |