gnu/dist/gcc4/gcc/testsuite/gcc.target/xstormy16/below100.S

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