102 lines
2.2 KiB
ArmAsm
102 lines
2.2 KiB
ArmAsm
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.section .text.vector
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.align 2
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.global vector_table
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vector_table:
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.org 0x00
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jal x0, illegal_instruction_handler
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jal x0, instruction_addr_misaligned_handler
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jal x0, ecall_handler
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jal x0, ebreak_handler
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jal x0, load_misaligned_handler
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jal x0, store_misaligned_handler
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jal x0, handle_exception_unknown
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jal x0, handle_exception_unknown
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jal x0, external_irq_handler
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jal x0, software_irq_handler
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jal x0, timer_irq_handler
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jal x0, fast_irq0_handler
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jal x0, fast_irq1_handler
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jal x0, fast_irq2_handler
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jal x0, fast_irq3_handler
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jal x0, fast_irq4_handler
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.rept 10
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jal x0, fast_irq_handler
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.endr
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.weak illegal_instruction_handler
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.weak instruction_addr_misaligned_handler
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.weak ecall_handler
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.weak ebreak_handler
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.weak load_misaligned_handler
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.weak store_misaligned_handler
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.weak handle_exception_unknown
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.weak external_irq_handler
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.weak software_irq_handler
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.weak timer_irq_handler
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.weak fast_irq0_handler
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.weak fast_irq1_handler
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.weak fast_irq2_handler
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.weak fast_irq3_handler
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.weak fast_irq4_handler
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.weak fast_irq_handler
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handle_exception_unknown:
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j handle_exception_unknown
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illegal_instruction_handler:
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#ifdef SIMULATION
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call sim_ctrl_init
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la a0, illegal_instruction_msg
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jal ra, xputs
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#endif
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illegal_instruction_loop:
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j illegal_instruction_loop
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instruction_addr_misaligned_handler:
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j instruction_addr_misaligned_handler
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ecall_handler:
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j ecall_handler
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ebreak_handler:
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j ebreak_handler
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load_misaligned_handler:
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j load_misaligned_handler
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store_misaligned_handler:
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j store_misaligned_handler
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external_irq_handler:
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j external_irq_handler
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software_irq_handler:
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j software_irq_handler
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timer_irq_handler:
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j timer_irq_handler
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fast_irq0_handler:
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j fast_irq0_handler
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fast_irq1_handler:
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j fast_irq1_handler
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fast_irq2_handler:
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j fast_irq2_handler
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fast_irq3_handler:
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j fast_irq3_handler
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fast_irq4_handler:
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j fast_irq4_handler
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fast_irq_handler:
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j fast_irq_handler
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.section .rodata
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illegal_instruction_msg:
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.string "illegal instruction exception handler entered\n"
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