590 lines
12 KiB
ArmAsm
590 lines
12 KiB
ArmAsm
.intel_syntax noprefix
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// ISR stub table — 256 entries
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// For exceptions without error code, we push a dummy 0
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// For exceptions with error code, the CPU already pushed it
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// Macros for generating ISR stubs
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.macro ISR_NOERR num
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.global isr_stub_\num
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isr_stub_\num:
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push 0 // dummy error code
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push \num // vector number
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jmp isr_common
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.endm
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.macro ISR_ERR num
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.global isr_stub_\num
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isr_stub_\num:
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// error code already on stack from CPU
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push \num // vector number
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jmp isr_common
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.endm
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// === Exceptions 0-31 ===
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ISR_NOERR 0 // #DE Divide Error
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ISR_NOERR 1 // #DB Debug
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ISR_NOERR 2 // NMI
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ISR_NOERR 3 // #BP Breakpoint
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ISR_NOERR 4 // #OF Overflow
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ISR_NOERR 5 // #BR Bound Range Exceeded
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ISR_NOERR 6 // #UD Invalid Opcode
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ISR_NOERR 7 // #NM Device Not Available
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ISR_ERR 8 // #DF Double Fault
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ISR_NOERR 9 // Coprocessor Segment Overrun (reserved)
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ISR_ERR 10 // #TS Invalid TSS
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ISR_ERR 11 // #NP Segment Not Present
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ISR_ERR 12 // #SS Stack-Segment Fault
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ISR_ERR 13 // #GP General Protection
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ISR_ERR 14 // #PF Page Fault
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ISR_NOERR 15 // Reserved
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ISR_NOERR 16 // #MF x87 FPU Error
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ISR_ERR 17 // #AC Alignment Check
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ISR_NOERR 18 // #MC Machine Check
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ISR_NOERR 19 // #XM SIMD Exception
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ISR_NOERR 20 // Virtualization Exception
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ISR_ERR 21 // #CP Control Protection
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ISR_NOERR 22
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ISR_NOERR 23
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ISR_NOERR 24
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ISR_NOERR 25
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ISR_NOERR 26
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ISR_NOERR 27
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ISR_NOERR 28
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ISR_ERR 29 // Hypervisor Injection
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ISR_ERR 30 // #SX Security Exception
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ISR_NOERR 31 // Reserved
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// === Hardware IRQs 32-255 ===
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ISR_NOERR 32 // PIT timer (IRQ 0)
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ISR_NOERR 33 // Keyboard (IRQ 1)
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ISR_NOERR 34 // Cascade (IRQ 2)
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ISR_NOERR 35 // COM2 (IRQ 3)
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ISR_NOERR 36 // COM1 (IRQ 4)
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ISR_NOERR 37 // LPT2 (IRQ 5)
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ISR_NOERR 38 // Floppy (IRQ 6)
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ISR_NOERR 39 // LPT1 / Spurious (IRQ 7)
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ISR_NOERR 40 // CMOS RTC (IRQ 8)
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ISR_NOERR 41 // ACPI (IRQ 9)
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ISR_NOERR 42 // Open (IRQ 10)
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ISR_NOERR 43 // Open (IRQ 11)
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ISR_NOERR 44 // PS/2 Mouse (IRQ 12)
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ISR_NOERR 45 // FPU (IRQ 13)
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ISR_NOERR 46 // Primary ATA (IRQ 14)
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ISR_NOERR 47 // Secondary ATA (IRQ 15)
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// Vectors 48-255: software / unused
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ISR_NOERR 48
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ISR_NOERR 49
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ISR_NOERR 50
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ISR_NOERR 51
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ISR_NOERR 52
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ISR_NOERR 53
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ISR_NOERR 54
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ISR_NOERR 55
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ISR_NOERR 56
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ISR_NOERR 57
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ISR_NOERR 58
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ISR_NOERR 59
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ISR_NOERR 60
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ISR_NOERR 61
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ISR_NOERR 62
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ISR_NOERR 63
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ISR_NOERR 64
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ISR_NOERR 65
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ISR_NOERR 66
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ISR_NOERR 67
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ISR_NOERR 68
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ISR_NOERR 69
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ISR_NOERR 70
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ISR_NOERR 71
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ISR_NOERR 72
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ISR_NOERR 73
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ISR_NOERR 74
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ISR_NOERR 75
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ISR_NOERR 76
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ISR_NOERR 77
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ISR_NOERR 78
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ISR_NOERR 79
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ISR_NOERR 80
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ISR_NOERR 81
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ISR_NOERR 82
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ISR_NOERR 83
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ISR_NOERR 84
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ISR_NOERR 85
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ISR_NOERR 86
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ISR_NOERR 87
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ISR_NOERR 88
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ISR_NOERR 89
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ISR_NOERR 90
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ISR_NOERR 91
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ISR_NOERR 92
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ISR_NOERR 93
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ISR_NOERR 94
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ISR_NOERR 95
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ISR_NOERR 96
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ISR_NOERR 97
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ISR_NOERR 98
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ISR_NOERR 99
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ISR_NOERR 100
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ISR_NOERR 101
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ISR_NOERR 102
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ISR_NOERR 103
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ISR_NOERR 104
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ISR_NOERR 105
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ISR_NOERR 106
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ISR_NOERR 107
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ISR_NOERR 108
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ISR_NOERR 109
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ISR_NOERR 110
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ISR_NOERR 111
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ISR_NOERR 112
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ISR_NOERR 113
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ISR_NOERR 114
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ISR_NOERR 115
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ISR_NOERR 116
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ISR_NOERR 117
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ISR_NOERR 118
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ISR_NOERR 119
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ISR_NOERR 120
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ISR_NOERR 121
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ISR_NOERR 122
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ISR_NOERR 123
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ISR_NOERR 124
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ISR_NOERR 125
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ISR_NOERR 126
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ISR_NOERR 127
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ISR_NOERR 128
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ISR_NOERR 129
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ISR_NOERR 130
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ISR_NOERR 131
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ISR_NOERR 132
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ISR_NOERR 133
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ISR_NOERR 134
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ISR_NOERR 135
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ISR_NOERR 136
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ISR_NOERR 137
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ISR_NOERR 138
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ISR_NOERR 139
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ISR_NOERR 140
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ISR_NOERR 141
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ISR_NOERR 142
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ISR_NOERR 143
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ISR_NOERR 144
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ISR_NOERR 145
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ISR_NOERR 146
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ISR_NOERR 147
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ISR_NOERR 148
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ISR_NOERR 149
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ISR_NOERR 150
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ISR_NOERR 151
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ISR_NOERR 152
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ISR_NOERR 153
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ISR_NOERR 154
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ISR_NOERR 155
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ISR_NOERR 156
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ISR_NOERR 157
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ISR_NOERR 158
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ISR_NOERR 159
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ISR_NOERR 160
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ISR_NOERR 161
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ISR_NOERR 162
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ISR_NOERR 163
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ISR_NOERR 164
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ISR_NOERR 165
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ISR_NOERR 166
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ISR_NOERR 167
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ISR_NOERR 168
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ISR_NOERR 169
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ISR_NOERR 170
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ISR_NOERR 171
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ISR_NOERR 172
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ISR_NOERR 173
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ISR_NOERR 174
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ISR_NOERR 175
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ISR_NOERR 176
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ISR_NOERR 177
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ISR_NOERR 178
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ISR_NOERR 179
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ISR_NOERR 180
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ISR_NOERR 181
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ISR_NOERR 182
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ISR_NOERR 183
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ISR_NOERR 184
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ISR_NOERR 185
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ISR_NOERR 186
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ISR_NOERR 187
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ISR_NOERR 188
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ISR_NOERR 189
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ISR_NOERR 190
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ISR_NOERR 191
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ISR_NOERR 192
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ISR_NOERR 193
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ISR_NOERR 194
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ISR_NOERR 195
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ISR_NOERR 196
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ISR_NOERR 197
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ISR_NOERR 198
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ISR_NOERR 199
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ISR_NOERR 200
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ISR_NOERR 201
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ISR_NOERR 202
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ISR_NOERR 203
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ISR_NOERR 204
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ISR_NOERR 205
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ISR_NOERR 206
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ISR_NOERR 207
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ISR_NOERR 208
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ISR_NOERR 209
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ISR_NOERR 210
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ISR_NOERR 211
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ISR_NOERR 212
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ISR_NOERR 213
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ISR_NOERR 214
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ISR_NOERR 215
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ISR_NOERR 216
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ISR_NOERR 217
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ISR_NOERR 218
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ISR_NOERR 219
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ISR_NOERR 220
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ISR_NOERR 221
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ISR_NOERR 222
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ISR_NOERR 223
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ISR_NOERR 224
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ISR_NOERR 225
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ISR_NOERR 226
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ISR_NOERR 227
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ISR_NOERR 228
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ISR_NOERR 229
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ISR_NOERR 230
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ISR_NOERR 231
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ISR_NOERR 232
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ISR_NOERR 233
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ISR_NOERR 234
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ISR_NOERR 235
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ISR_NOERR 236
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ISR_NOERR 237
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ISR_NOERR 238
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ISR_NOERR 239
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ISR_NOERR 240
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ISR_NOERR 241
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ISR_NOERR 242
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ISR_NOERR 243
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ISR_NOERR 244
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ISR_NOERR 245
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ISR_NOERR 246
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ISR_NOERR 247
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ISR_NOERR 248
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ISR_NOERR 249
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ISR_NOERR 250
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ISR_NOERR 251
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ISR_NOERR 252
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ISR_NOERR 253
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ISR_NOERR 254
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ISR_NOERR 255
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// === Common ISR handler ===
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// Stack layout on entry (from ISR stub):
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// [rsp+0x00] vector (pushed by stub)
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// [rsp+0x08] error_code (pushed by stub or CPU)
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// [rsp+0x10] rip (pushed by CPU)
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// [rsp+0x18] cs (pushed by CPU)
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// [rsp+0x20] rflags (pushed by CPU)
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// [rsp+0x28] rsp (pushed by CPU)
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// [rsp+0x30] ss (pushed by CPU)
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isr_common:
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// Save all general-purpose registers to form trap_frame
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push r11
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push r10
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push r9
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push r8
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push rdi
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push rsi
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push rdx
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push rcx
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push rax
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// Now RSP points to trap_frame struct, pass as argument
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mov rdi, rsp
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call isr_dispatch
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// Restore registers
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pop rax
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pop rcx
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pop rdx
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pop rsi
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pop rdi
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pop r8
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pop r9
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pop r10
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pop r11
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// Skip vector + error_code (16 bytes)
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add rsp, 16
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iretq
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// === ISR stub table (array of pointers) ===
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.section .data
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.global isr_stub_table
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isr_stub_table:
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.quad isr_stub_0
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.quad isr_stub_1
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.quad isr_stub_2
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.quad isr_stub_3
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.quad isr_stub_4
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.quad isr_stub_5
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.quad isr_stub_6
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.quad isr_stub_7
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.quad isr_stub_8
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.quad isr_stub_9
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.quad isr_stub_10
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.quad isr_stub_11
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.quad isr_stub_12
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.quad isr_stub_13
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.quad isr_stub_14
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.quad isr_stub_15
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.quad isr_stub_16
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.quad isr_stub_17
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.quad isr_stub_18
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.quad isr_stub_19
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.quad isr_stub_20
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.quad isr_stub_21
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.quad isr_stub_22
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.quad isr_stub_23
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.quad isr_stub_24
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.quad isr_stub_25
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.quad isr_stub_26
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.quad isr_stub_27
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.quad isr_stub_28
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.quad isr_stub_29
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.quad isr_stub_30
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.quad isr_stub_31
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.quad isr_stub_32
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.quad isr_stub_33
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.quad isr_stub_34
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.quad isr_stub_35
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.quad isr_stub_36
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.quad isr_stub_37
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.quad isr_stub_38
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.quad isr_stub_39
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.quad isr_stub_40
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.quad isr_stub_41
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.quad isr_stub_42
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.quad isr_stub_43
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.quad isr_stub_44
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.quad isr_stub_45
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.quad isr_stub_46
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.quad isr_stub_47
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.quad isr_stub_48
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.quad isr_stub_49
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.quad isr_stub_50
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.quad isr_stub_51
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.quad isr_stub_52
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.quad isr_stub_53
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.quad isr_stub_54
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.quad isr_stub_55
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.quad isr_stub_56
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.quad isr_stub_57
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.quad isr_stub_58
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.quad isr_stub_59
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.quad isr_stub_60
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.quad isr_stub_61
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.quad isr_stub_62
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.quad isr_stub_63
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.quad isr_stub_64
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.quad isr_stub_65
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.quad isr_stub_66
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.quad isr_stub_67
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.quad isr_stub_68
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.quad isr_stub_69
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.quad isr_stub_70
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.quad isr_stub_71
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.quad isr_stub_72
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.quad isr_stub_73
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.quad isr_stub_74
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.quad isr_stub_75
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.quad isr_stub_76
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.quad isr_stub_77
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.quad isr_stub_78
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.quad isr_stub_79
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.quad isr_stub_80
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.quad isr_stub_81
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.quad isr_stub_82
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.quad isr_stub_83
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.quad isr_stub_84
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.quad isr_stub_85
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.quad isr_stub_86
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.quad isr_stub_87
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.quad isr_stub_88
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.quad isr_stub_89
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.quad isr_stub_90
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.quad isr_stub_91
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.quad isr_stub_92
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.quad isr_stub_93
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.quad isr_stub_94
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.quad isr_stub_95
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.quad isr_stub_96
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.quad isr_stub_97
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.quad isr_stub_98
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.quad isr_stub_99
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.quad isr_stub_100
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.quad isr_stub_101
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.quad isr_stub_102
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.quad isr_stub_103
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.quad isr_stub_104
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.quad isr_stub_105
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.quad isr_stub_106
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.quad isr_stub_107
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.quad isr_stub_108
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.quad isr_stub_109
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.quad isr_stub_110
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.quad isr_stub_111
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.quad isr_stub_112
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.quad isr_stub_113
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.quad isr_stub_114
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.quad isr_stub_115
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.quad isr_stub_116
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.quad isr_stub_117
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.quad isr_stub_118
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.quad isr_stub_119
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.quad isr_stub_120
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.quad isr_stub_121
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.quad isr_stub_122
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.quad isr_stub_123
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.quad isr_stub_124
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.quad isr_stub_125
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.quad isr_stub_126
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.quad isr_stub_127
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.quad isr_stub_128
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.quad isr_stub_129
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.quad isr_stub_130
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.quad isr_stub_131
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.quad isr_stub_132
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.quad isr_stub_133
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.quad isr_stub_134
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.quad isr_stub_135
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.quad isr_stub_136
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.quad isr_stub_137
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.quad isr_stub_138
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.quad isr_stub_139
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.quad isr_stub_140
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.quad isr_stub_141
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.quad isr_stub_142
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.quad isr_stub_143
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.quad isr_stub_144
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.quad isr_stub_145
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.quad isr_stub_146
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.quad isr_stub_147
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.quad isr_stub_148
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.quad isr_stub_149
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.quad isr_stub_150
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.quad isr_stub_151
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.quad isr_stub_152
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.quad isr_stub_153
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.quad isr_stub_154
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.quad isr_stub_155
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.quad isr_stub_156
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.quad isr_stub_157
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.quad isr_stub_158
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.quad isr_stub_159
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.quad isr_stub_160
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.quad isr_stub_161
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.quad isr_stub_162
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.quad isr_stub_163
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.quad isr_stub_164
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.quad isr_stub_165
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.quad isr_stub_166
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.quad isr_stub_167
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.quad isr_stub_168
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.quad isr_stub_169
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.quad isr_stub_170
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.quad isr_stub_171
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.quad isr_stub_172
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.quad isr_stub_173
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.quad isr_stub_174
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.quad isr_stub_175
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.quad isr_stub_176
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.quad isr_stub_177
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.quad isr_stub_178
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.quad isr_stub_179
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.quad isr_stub_180
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.quad isr_stub_181
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.quad isr_stub_182
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.quad isr_stub_183
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.quad isr_stub_184
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.quad isr_stub_185
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.quad isr_stub_186
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.quad isr_stub_187
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.quad isr_stub_188
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.quad isr_stub_189
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.quad isr_stub_190
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.quad isr_stub_191
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.quad isr_stub_192
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.quad isr_stub_193
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.quad isr_stub_194
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.quad isr_stub_195
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.quad isr_stub_196
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.quad isr_stub_197
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.quad isr_stub_198
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.quad isr_stub_199
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.quad isr_stub_200
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.quad isr_stub_201
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.quad isr_stub_202
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.quad isr_stub_203
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.quad isr_stub_204
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.quad isr_stub_205
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.quad isr_stub_206
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.quad isr_stub_207
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.quad isr_stub_208
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.quad isr_stub_209
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.quad isr_stub_210
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.quad isr_stub_211
|
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.quad isr_stub_212
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.quad isr_stub_213
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.quad isr_stub_214
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.quad isr_stub_215
|
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.quad isr_stub_216
|
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.quad isr_stub_217
|
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.quad isr_stub_218
|
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.quad isr_stub_219
|
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.quad isr_stub_220
|
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.quad isr_stub_221
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.quad isr_stub_222
|
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.quad isr_stub_223
|
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.quad isr_stub_224
|
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.quad isr_stub_225
|
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.quad isr_stub_226
|
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.quad isr_stub_227
|
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.quad isr_stub_228
|
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.quad isr_stub_229
|
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.quad isr_stub_230
|
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.quad isr_stub_231
|
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.quad isr_stub_232
|
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.quad isr_stub_233
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.quad isr_stub_234
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.quad isr_stub_235
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.quad isr_stub_236
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.quad isr_stub_237
|
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.quad isr_stub_238
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.quad isr_stub_239
|
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.quad isr_stub_240
|
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.quad isr_stub_241
|
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.quad isr_stub_242
|
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.quad isr_stub_243
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.quad isr_stub_244
|
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.quad isr_stub_245
|
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.quad isr_stub_246
|
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.quad isr_stub_247
|
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.quad isr_stub_248
|
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.quad isr_stub_249
|
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.quad isr_stub_250
|
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.quad isr_stub_251
|
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.quad isr_stub_252
|
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.quad isr_stub_253
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.quad isr_stub_254
|
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.quad isr_stub_255
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.section .note.GNU-stack,"",@progbits
|