2011-02-17 23:45:16 +01:00
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.text
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.global _start
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_start:
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_reset_handler:
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xor r0, r0, r0
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mvhi r1, hi(_start)
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ori r1, r1, lo(_start)
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wcsr eba, r1
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wcsr deba, r1
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2014-04-22 20:18:43 +02:00
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mvhi sp, hi(_fstack)
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ori sp, sp, lo(_fstack)
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2011-02-17 23:45:16 +01:00
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bi _main
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_breakpoint_handler:
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ori r25, r25, 1
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addi ra, ba, 4
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ret
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nop
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nop
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nop
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nop
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nop
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_instruction_bus_error_handler:
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ori r25, r25, 2
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addi ra, ea, 4
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ret
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nop
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nop
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nop
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nop
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nop
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_watchpoint_handler:
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ori r25, r25, 4
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addi ra, ba, 4
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ret
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nop
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nop
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nop
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nop
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nop
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_data_bus_error_handler:
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ori r25, r25, 8
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addi ra, ea, 4
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ret
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nop
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nop
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nop
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nop
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nop
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_divide_by_zero_handler:
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ori r25, r25, 16
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addi ra, ea, 4
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ret
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nop
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nop
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nop
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nop
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nop
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_interrupt_handler:
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ori r25, r25, 32
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addi ra, ea, 4
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ret
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nop
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nop
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nop
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nop
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nop
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_system_call_handler:
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ori r25, r25, 64
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addi ra, ea, 4
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ret
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nop
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nop
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nop
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nop
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nop
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