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 ; The o65 header structure (6502 format)
  42 .struct O65_HDR
  43         MARKER          .byte   2       ; Non-C64 marker: $01 $00
  44         MAGIC           .byte   3       ; o65 magic: "o65"
  45         VERSION         .byte   1       ; Version number
  46         MODE            .word           ; Mode word
  47         TBASE           .word           ; Original text (code) segment address
  48         TLEN            .word           ; Size of text (code) segment
  49         DBASE           .word           ; Original data segment address
  50         DLEN            .word           ; Size of data segment
  51         BBASE           .word           ; Original bss segment address
  52         BLEN            .word           ; Size of bss segment
  53         ZBASE           .word           ; Original zp segment address
  54         ZLEN            .word           ; Size of zp segment
  55         STACK           .word           ; Stacksize needed
  56 .endstruct
  57
  58 ; Marker, magic and version number
  59 O65_MARKER_0            =       $01
  60 O65_MARKER_1            =       $00
  61 O65_MAGIC_0             =       $6F     ; 'o'
  62 O65_MAGIC_1             =       $36     ; '6'
  63 O65_MAGIC_2             =       $35     ; '5'
  64 O65_VERSION             =       $00
  65
  66 ; Defines for the mode word
  67 O65_CPU_65816           =       $8000   ; Executable is for 65816
  68 O65_CPU_6502            =       $0000   ; Executable is for the 6502
  69 O65_CPU_MASK            =       $8000   ; Mask to extract CPU type
  70
  71 O65_RELOC_PAGE          =       $4000   ; Page wise relocation
  72 O65_RELOC_BYTE          =       $0000   ; Byte wise relocation
  73 O65_RELOC_MASK          =       $4000   ; Mask to extract relocation type
  74
  75 O65_SIZE_32BIT          =       $2000   ; All size words are 32bit
  76 O65_SIZE_16BIT          =       $0000   ; All size words are 16bit
  77 O65_SIZE_MASK           =       $2000   ; Mask to extract size
  78
  79 O65_FTYPE_OBJ           =       $1000   ; Object file
  80 O65_FTYPE_EXE           =       $0000   ; Executable file
  81 O65_FTYPE_MASK          =       $1000   ; Mask to extract type
  82
  83 O65_ADDR_SIMPLE         =       $0800   ; Simple addressing
  84 O65_ADDR_DEFAULT        =       $0000   ; Default addressing
  85 O65_ADDR_MASK           =       $0800   ; Mask to extract addressing
  86
  87 O65_ALIGN_1             =       $0000   ; Bytewise alignment
  88 O65_ALIGN_2             =       $0001   ; Align words
  89 O65_ALIGN_4             =       $0002   ; Align longwords
  90 O65_ALIGN_256           =       $0003   ; Align pages (256 bytes)
  91 O65_ALIGN_MASK          =       $0003   ; Mask to extract alignment
  92
  93 ; The mode word as generated by the ld65 linker
  94 O65_MODE_CC65           = O65_CPU_6502 | O65_RELOC_BYTE | O65_SIZE_16BIT | O65_FTYPE_EXE | O65_ADDR_SIMPLE | O65_ALIGN_1
  95
  96 ; Relocation type codes
  97 O65_RTYPE_WORD          =       $80
  98 O65_RTYPE_HIGH          =       $40
  99 O65_RTYPE_LOW           =       $20
 100 O65_RTYPE_SEGADDR       =       $C0
 101 O65_RTYPE_SEG           =       $A0
 102 O65_RTYPE_MASK          =       $E0
 103
 104 ; Segment IDs
 105 O65_SEGID_UNDEF         =       $00
 106 O65_SEGID_ABS           =       $01
 107 O65_SEGID_TEXT          =       $02
 108 O65_SEGID_DATA          =       $03
 109 O65_SEGID_BSS           =       $04
 110 O65_SEGID_ZP            =       $05
 111 O65_SEGID_MASK          =       $07
 112
 113 ; Option tags
 114 O65_OPT_FILENAME        =       0
 115 O65_OPT_OS              =       1
 116 O65_OPT_ASM             =       2
 117 O65_OPT_AUTHOR          =       3
 118 O65_OPT_TIMESTAMP       =       4
 119
 120 ; Operating system codes for O65_OPT_OS
 121 O65_OS_OSA65            =       1
 122 O65_OS_LUNIX            =       2
 123 O65_OS_CC65             =       3
 124 O65_OS_OPENCBM          =       4
 125
 126 ; Load errors
 127 O65_LOAD_OK             =       0       ; Module load successful
 128 O65_LOAD_ERR_READ       =       1       ; Read error
 129 O65_LOAD_ERR_HDR        =       2       ; Header error
 130 O65_LOAD_ERR_OS         =       3       ; Wrong OS
 131 O65_LOAD_ERR_FMT        =       4       ; Data format error
 132 O65_LOAD_ERR_MEM        =       5       ; Not enough memory
 133
 134
 135