git.sur5r.net Git - cc65/blob - asminc/o65.inc

   1 ;*****************************************************************************/
   2 ;*                                                                           */
   3 ;*                                  o65.inc                                  */
   4 ;*                                                                           */
   5 ;*                    Definitions for the o65 file format                    */
   6 ;*                                                                           */
   7 ;*                                                                           */
   8 ;*                                                                           */
   9 ;* (C) 2002      Ullrich von Bassewitz                                       */
  10 ;*               Wacholderweg 14                                             */
  11 ;*               D-70597 Stuttgart                                           */
  12 ;* EMail:        uz@musoftware.de                                            */
  13 ;*                                                                           */
  14 ;*                                                                           */
  15 ;* This software is provided 'as-is', without any expressed or implied       */
  16 ;* warranty.  In no event will the authors be held liable for any damages    */
  17 ;* arising from the use of this software.                                    */
  18 ;*                                                                           */
  19 ;* Permission is granted to anyone to use this software for any purpose,     */
  20 ;* including commercial applications, and to alter it and redistribute it    */
  21 ;* freely, subject to the following restrictions:                            */
  22 ;*                                                                           */
  23 ;* 1. The origin of this software must not be misrepresented; you must not   */
  24 ;*    claim that you wrote the original software. If you use this software   */
  25 ;*    in a product, an acknowledgment in the product documentation would be  */
  26 ;*    appreciated but is not required.                                       */
  27 ;* 2. Altered source versions must be plainly marked as such, and must not   */
  28 ;*    be misrepresented as being the original software.                      */
  29 ;* 3. This notice may not be removed or altered from any source              */
  30 ;*    distribution.                                                          */
  31 ;*                                                                           */
  32 ;*****************************************************************************/
  33
  34
  35
  36 ; This files exports structures and constants to handle the o65 relocatable
  37 ; file format as defined by Andre Fachat.
  38
  39
  40
  41 ; Offsets into the o65 header structure (6502 format)
  42 O65_HDR_MARKER          =       0       ; Non-C64 marker
  43 O65_HDR_MAGIC           =       2       ; o65 magic
  44 O65_HDR_VERSION         =       5       ; Version number
  45 O65_HDR_MODE            =       6       ; Mode word
  46 O65_HDR_TBASE           =       8       ; Original text (code) segment address
  47 O65_HDR_TLEN            =      10       ; Size of text (code) segment
  48 O65_HDR_DBASE           =      12       ; Original data segment address
  49 O65_HDR_DLEN            =      14       ; Size of data segment
  50 O65_HDR_BBASE           =      16       ; Original bss segment address
  51 O65_HDR_BLEN            =      18       ; Size of bss segment
  52 O65_HDR_ZBASE           =      20       ; Original zp segment address
  53 O65_HDR_ZLEN            =      22       ; Size of zp segment
  54 O65_HDR_STACK           =      24       ; Stacksize needed
  55 O65_HDR_SIZE            =      26       ; Size of header structure
  56
  57 ; Marker, magic and version number
  58 O65_MARKER_0            =       $01
  59 O65_MARKER_1            =       $00
  60 O65_MAGIC_0             =       $6F     ; 'o'
  61 O65_MAGIC_1             =       $36     ; '6'
  62 O65_MAGIC_2             =       $35     ; '5'
  63 O65_VERSION             =       $00
  64
  65 ; Defines for the mode word
  66 O65_CPU_65816           =       $8000   ; Executable is for 65816
  67 O65_CPU_6502            =       $0000   ; Executable is for the 6502
  68 O65_CPU_MASK            =       $8000   ; Mask to extract CPU type
  69
  70 O65_RELOC_PAGE          =       $4000   ; Page wise relocation
  71 O65_RELOC_BYTE          =       $0000   ; Byte wise relocation
  72 O65_RELOC_MASK          =       $4000   ; Mask to extract relocation type
  73
  74 O65_SIZE_32BIT          =       $2000   ; All size words are 32bit
  75 O65_SIZE_16BIT          =       $0000   ; All size words are 16bit
  76 O65_SIZE_MASK           =       $2000   ; Mask to extract size
  77
  78 O65_FTYPE_OBJ           =       $1000   ; Object file
  79 O65_FTYPE_EXE           =       $0000   ; Executable file
  80 O65_FTYPE_MASK          =       $1000   ; Mask to extract type
  81
  82 O65_ADDR_SIMPLE         =       $0800   ; Simple addressing
  83 O65_ADDR_DEFAULT        =       $0000   ; Default addressing
  84 O65_ADDR_MASK           =       $0800   ; Mask to extract addressing
  85
  86 O65_ALIGN_1             =       $0000   ; Bytewise alignment
  87 O65_ALIGN_2             =       $0001   ; Align words
  88 O65_ALIGN_4             =       $0002   ; Align longwords
  89 O65_ALIGN_256           =       $0003   ; Align pages (256 bytes)
  90 O65_ALIGN_MASK          =       $0003   ; Mask to extract alignment
  91
  92 ; The mode word as generated by the ld65 linker
  93 O65_MODE_CC65           = O65_CPU_6502 | O65_RELOC_BYTE | O65_SIZE_16BIT | O65_FTYPE_EXE | O65_ADDR_SIMPLE | O65_ALIGN_1
  94
  95 ; Relocation type codes
  96 O65_RTYPE_WORD          =       $80
  97 O65_RTYPE_HIGH          =       $40
  98 O65_RTYPE_LOW           =       $20
  99 O65_RTYPE_SEGADDR       =       $C0
 100 O65_RTYPE_SEG           =       $A0
 101 O65_RTYPE_MASK          =       $E0
 102
 103 ; Segment IDs
 104 O65_SEGID_UNDEF         =       $00
 105 O65_SEGID_ABS           =       $01
 106 O65_SEGID_TEXT          =       $02
 107 O65_SEGID_DATA          =       $03
 108 O65_SEGID_BSS           =       $04
 109 O65_SEGID_ZP            =       $05
 110 O65_SEGID_MASK          =       $07
 111
 112 ; Option tags
 113 O65_OPT_FILENAME        =       0
 114 O65_OPT_OS              =       1
 115 O65_OPT_ASM             =       2
 116 O65_OPT_AUTHOR          =       3
 117 O65_OPT_TIMESTAMP       =       4
 118
 119 ; Operating system codes for O65_OPT_OS
 120 O65_OS_OSA65            =       1
 121 O65_OS_LUNIX            =       2
 122 O65_OS_CC65_MODULE      =       3
 123
 124 ; Load errors
 125 O65_LOAD_OK             =       0       ; Module load successful
 126 O65_LOAD_ERR_READ       =       1       ; Read error
 127 O65_LOAD_ERR_HDR        =       2       ; Header error
 128 O65_LOAD_ERR_OS         =       3       ; Wrong OS
 129 O65_LOAD_ERR_FMT        =       4       ; Data format error
 130 O65_LOAD_ERR_MEM        =       5       ; Not enough memory
 131
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