tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC23XX/TOOLCHAIN_GCC_CS/vector_functions.s

   1 # 1 "vector_functions.s"
   2 # 1 "<built-in>"
   3 # 1 "<command line>"
   4 # 1 "vector_functions.s"
   5 ;
   6 ;
   7 ;
   8
   9 # 1 "vector_defns.h" 1
  10 # 6 "vector_functions.s" 2
  11
  12
  13
  14
  15
  16
  17         .section VECFUNCS, "ax"
  18         .arm
  19
  20
  21         .weak __mbed_fiq
  22         .weak __mbed_undef
  23         .weak __mbed_prefetch_abort
  24         .weak __mbed_data_abort
  25         .weak __mbed_irq
  26         .weak __mbed_swi
  27         .weak __mbed_dcc_irq
  28         .weak __mbed_reset
  29         .global __mbed_init_realmonitor
  30         .global __mbed_init
  31
  32 ;
  33 ;
  34 __mbed_fiq:
  35         B __mbed_fiq
  36
  37 ;
  38 ;
  39 __mbed_undef:
  40         LDR PC, =0x7fffffa0
  41
  42 ;
  43 ;
  44 __mbed_prefetch_abort:
  45         LDR PC, =0x7fffffb0
  46
  47 ;
  48 ;
  49 __mbed_data_abort:
  50         LDR PC, =0x7fffffc0
  51
  52 ;
  53 ;
  54 ;
  55 ;
  56 ;
  57 ;
  58 ;
  59 ;
  60 ;
  61 __mbed_irq:
  62         ;
  63         MSR CPSR_c, #0x1F|0x80|0x40
  64
  65         ;
  66         STMDB sp!, {r0-r3,r12,lr}
  67
  68         ;
  69         MOV r0, #0xFFFFFF00
  70         LDR r0, [r0]
  71
  72         ;
  73         MOV lr, pc
  74         BX r0
  75
  76         ;
  77         MOV r0, #0xFFFFFF00
  78         STR r0, [r0] ;
  79
  80         ;
  81         LDMFD sp!,{r0-r3,r12,lr}
  82
  83         ;
  84         MSR CPSR_c, #0x12|0x80|0x40
  85
  86         ;
  87         SUBS pc, lr, #4
  88
  89 ;
  90 ;
  91 ;
  92 ;
  93 __mbed_swi:
  94         ;
  95         ;
  96         STMFD sp!, {a4, r4, ip, lr}
  97
  98         ;
  99         LDR r4, =0x40000040
 100
 101         ;
 102         ;
 103         LDR a4, =0x00940000
 104         LDR PC, =0x7ffff820
 105
 106 ;
 107 ;
 108 ;
 109 ;
 110 __mbed_dcc_irq:
 111
 112         ;
 113
 114         ;
 115         LDMFD sp!,{r0-r3,r12,lr}
 116
 117         ;
 118         MSR CPSR_c, #0x12|0x80|0x40
 119
 120         ;
 121
 122         ;
 123         SUB lr, lr, #4 ;
 124         STMFD sp!, {ip,lr} ;
 125
 126         ;
 127         LDR LR, =0xfffff000
 128         STR LR, [LR, #0xf00]
 129
 130         ;
 131         ;
 132         ;
 133         ;
 134         LDR PC, =0x7fffffe0
 135
 136 ;
 137 ;
 138 __mbed_reset:
 139
 140         ;
 141
 142         LDR R0, =(0x40000000 + 0x8000)
 143
 144         ;
 145         MSR CPSR_c, #0x1B|0x80|0x40
 146         MOV SP, R0
 147         SUB R0, R0, #0x00000040
 148
 149         ;
 150         MSR CPSR_c, #0x17|0x80|0x40
 151         MOV SP, R0
 152         SUB R0, R0, #0x00000040
 153
 154         ;
 155         MSR CPSR_c, #0x11|0x80|0x40
 156         MOV SP, R0
 157         SUB R0, R0, #0x00000000
 158
 159         ;
 160         MSR CPSR_c, #0x12|0x80|0x40
 161         MOV SP, R0
 162         SUB R0, R0, #0x00000040
 163
 164         ;
 165         MSR CPSR_c, #0x13|0x80|0x40
 166         MOV SP, R0
 167         SUB R0, R0, #0x00000040
 168
 169         ;
 170         MSR CPSR_c, #0x10
 171         MOV SP, R0
 172
 173         ;
 174         LDR R0, =__mbed_init_realmonitor
 175         MOV LR, PC
 176         BX R0
 177
 178         ;
 179         LDR R0, =__mbed_init
 180         BX R0