gcc/testsuite/gcc.target/xstormy16/below100.S

   1 /******************************************************************\r
   2 ***                                                             ***\r
   3 ***     crt0 for __BELOW100__ attribute test with SID           ***\r
   4 ***                                                             ***\r
   5 ******************************************************************/\r
   6 \r
   7                                 /*************************************/\r
   8                                 /** Interrupt vectors at 0x8000     **/\r
   9                                 /*************************************/\r
  10         .section .int_vec,"ax"\r
  11         .global _start\r
  12         .align 1\r
  13 _start:\r
  14         jmpf _int_reset\r
  15         //jmpf _int_basetimer\r
  16         //jmpf _int_timer0\r
  17         //jmpf _int_timer1\r
  18         //jmpf _int_irq_4\r
  19         //jmpf _int_irq_5\r
  20         //jmpf _int_port0\r
  21         //jmpf _int_port1\r
  22         //jmpf _int_irq_8\r
  23         //jmpf _int_irq_9\r
  24         //jmpf _int_irq_a\r
  25         //jmpf _int_irq_b\r
  26         //jmpf _int_irq_c\r
  27         //jmpf _int_irq_d\r
  28         //jmpf _int_irq_e\r
  29         //jmpf _int_irq_f\r
  30                                 /*************************************/\r
  31                                 /** reset code                      **/\r
  32                                 /*************************************/\r
  33         .text\r
  34 _int_reset:\r
  35                                 /*************************************/\r
  36                                 /** setup stack pointer             **/\r
  37                                 /*************************************/\r
  38         mov sp,#__stack\r
  39                                 /*************************************/\r
  40                                 /** zero .bss section               **/\r
  41                                 /*************************************/\r
  42         mov r0,#__bss_start\r
  43         mov r1,#__bss_end\r
  44         mov r2,#0\r
  45 1:      mov.w (r0++),r2\r
  46         blt r0,r1,1b\r
  47                                 /*************************************/\r
  48                                 /** copy inital value for .data     **/\r
  49                                 /*************************************/\r
  50         mov r1,#__data_start\r
  51         mov r3,#__data_end\r
  52         mov r0,#@lo(__rdata)\r
  53         mov r8,#@hi(__rdata)\r
  54 2:      movf.w r2,(r0++)\r
  55         bnz r0,#0,3f\r
  56         add r8,#1\r
  57 3:      mov.w (r1++),r2\r
  58         blt r1,r3,2b\r
  59                                 /*************************************/\r
  60                                 /** call hardware init routine      **/\r
  61                                 /*************************************/\r
  62         callf _hwinit\r
  63                                 /*************************************/\r
  64                                 /** call initializaton routines     **/\r
  65                                 /*************************************/\r
  66         callf _init\r
  67                                 /*************************************/\r
  68                                 /** setup fini routines to be       **/\r
  69                                 /**  called from exit               **/\r
  70                                 /*************************************/\r
  71         mov r2,#@fptr(_fini)\r
  72         callf atexit\r
  73                                 /*************************************/\r
  74                                 /** call main() with empty          **/\r
  75                                 /**  argc/argv/envp                 **/\r
  76                                 /*************************************/\r
  77         mov r2,#0\r
  78         mov r3,#0\r
  79         mov r4,#0\r
  80         callf main\r
  81                                 /*************************************/\r
  82                                 /** return from main()              **/\r
  83                                 /*************************************/\r
  84         callf exit\r
  85                                 /*************************************/\r
  86                                 /** should never reach this code    **/\r
  87                                 /*************************************/\r
  88         jmpf _start\r
  89                                 /*************************************/\r
  90                                 /** default h/w initialize routine  **/\r
  91                                 /** and default _init/_finit for    **/\r
  92                                 /**  -nostartfiles option           **/\r
  93                                 /*************************************/\r
  94         .globl _hwinit\r
  95         .weak _hwinit\r
  96 _hwinit:\r
  97         .globl _init\r
  98         .weak _init\r
  99 _init:\r
 100         .globl _fini\r
 101         .weak _fini\r
 102 _fini:\r
 103         ret\r
 104 \r
 105 /******************************************************************\r
 106 *******************************************************************\r
 107 ***                                                             ***\r
 108 ***       Chip information data for LC59_32K                    ***\r
 109 ***                 Written by T.Matsukawa                      ***\r
 110 ***                                                             ***\r
 111 *******************************************************************\r
 112 ******************************************************************/\r
 113 \r
 114                                 /*************************************/\r
 115                                 /** Define convenient macros        **/\r
 116                                 /*************************************/\r
 117 #define BCD(x)  (((x)/10)%10)*0x10+((x)%10)\r
 118 #define BCD4(x) BCD((x)/100),BCD(x)\r
 119 #define BCD6(x) BCD((x)/10000),BCD((x)/100),BCD(x)\r
 120                                 /*************************************/\r
 121                                 /** Define memory sizes             **/\r
 122                                 /*************************************/\r
 123 #define RAM_SIZE 0x7E00\r
 124 #define ROM_SIZE 0x78000\r
 125 #define VRAM_SIZE 0x0000\r
 126 #define VRAM_ROW 0\r
 127 #define VRAM_COLUMN 0\r
 128 #define CGROM_SIZE 0x0000\r
 129 #define PROTECT_SIZE 0x0000\r
 130 \r
 131                                 /*************************************/\r
 132                                 /** section ".chip_info"            **/\r
 133                                 /*************************************/\r
 134         .section .chip_info,"a"\r
 135         .space  0xb8,0x00\r
 136                                 /*************************************/\r
 137                                 /** B8-BB : User option address     **/\r
 138                                 /*************************************/\r
 139         .word   0x00000\r
 140         .global __reset_vector\r
 141 #if 0x00000==0\r
 142         .equ    __reset_vector,0x08000\r
 143 #else\r
 144         .equ    __reset_vector,0x00000\r
 145 #endif\r
 146                                 /*************************************/\r
 147                                 /** BC-BF : Flash Protect address   **/\r
 148                                 /*************************************/\r
 149 #if PROTECT_SIZE==0\r
 150         .word   0x00000000\r
 151 #else\r
 152         .word   0x08000+ROM_SIZE-PROTECT_SIZE\r
 153 #endif\r
 154                                 /*************************************/\r
 155                                 /** C0-CF : Fixed string            **/\r
 156                                 /*************************************/\r
 157         .ascii  "CHIPINFORMATION"\r
 158 1:      .space  (0xd0-1b),0x00\r
 159                                 /*************************************/\r
 160                                 /** D0-DF : Chipname                **/\r
 161                                 /*************************************/\r
 162         .ascii  "LC59_32K"\r
 163 2:      .space  (0xe0-2b),0x00\r
 164                                 /*************************************/\r
 165                                 /** E0-E1 : Format version(BCD4)    **/\r
 166                                 /*************************************/\r
 167         .byte   0x10, 0x00\r
 168         .space  6, 0x00\r
 169                                 /*************************************/\r
 170                                 /** E8-F5 : Memory sizes            **/\r
 171                                 /*************************************/\r
 172         .byte   BCD4(ROM_SIZE/1024)\r
 173         .byte   BCD6(RAM_SIZE)\r
 174         .byte   BCD6(VRAM_SIZE)\r
 175         .byte   BCD4(VRAM_ROW)\r
 176         .byte   BCD4(VRAM_COLUMN)\r
 177         .byte   BCD4(CGROM_SIZE/1024)\r
 178         .space  3, 0x00\r
 179                                 /*************************************/\r
 180                                 /** F9 : Package type               **/\r
 181                                 /*************************************/\r
 182         .byte   0xff\r
 183         .space  6, 0x00\r
 184 \r
 185                                 /*************************************/\r
 186                                 /** In order to link BIOS in library**/\r
 187                                 /*************************************/\r
 188         .equ    dummy,__bios_entry\r