86 lines
1.2 KiB
ArmAsm
86 lines
1.2 KiB
ArmAsm
/*
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ARM System Developer's Guide, Chapter 9 Section 1 (y. 2004-2008) (page 323)
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*/
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.data
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und_msg:
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.string "Undefined Instruction"
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swi_msg:
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.string "Hello. I am the sample SWI handler! =)"
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prefetch_abt_msg:
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.string "Prefetch Abort"
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data_abt_msg:
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.string "Data Abort"
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irq_msg:
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.string "IRQ"
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fiq_msg:
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.string "FIQ"
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.text
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.align 4
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.global vectab
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vectab:
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ldr pc, =panic
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ldr pc, =und_handler
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ldr pc, =swi_handler
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ldr pc, =prefetch_abt_handler
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ldr pc, =data_abt_handler
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nop
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ldr pc, =irq_handler
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ldr pc, =fiq_handler
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und_handler:
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stmfd sp!, {lr}
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ldr r0, =und_msg
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bl printkl
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ldmfd sp!, {pc}^
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swi_handler:
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stmfd sp!, {lr}
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ldr r0, =swi_msg
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bl printkl
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ldmfd sp!, {pc}^
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// TODO: untested
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prefetch_abt_handler:
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sub lr, #4
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stmfd sp!, {lr}
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ldr r0, =prefetch_abt_msg
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bl printkl
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ldmfd sp!, {pc}^
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data_abt_handler:
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sub lr, #8
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stmfd sp!, {lr}
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ldr r0, =data_abt_msg
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bl printkl
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b panic
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ldmfd sp!, {pc}^
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// TODO: untested
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irq_handler:
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stmfd sp!, {lr}
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ldr r0, =irq_msg
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bl printkl
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ldmfd sp!, {pc}^
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// TODO: untested
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fiq_handler:
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stmfd sp!, {lr}
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ldr r0, =fiq_msg
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bl printkl
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ldmfd sp!, {pc}^
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