2018-12-30 22:45:46 +00:00
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.data
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panic_msg:
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.string "=== PANIC : I'm afraid I have lost my towel"
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2018-12-28 10:30:39 +00:00
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.text
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.extern c_printk
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.global printk
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printk:
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push {lr}
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2018-12-30 22:07:00 +00:00
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/* disables IRQ and FIQ in CPU */
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2018-12-28 10:30:39 +00:00
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cpsid if
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/* C-Implementation */
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bl c_printk
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2018-12-30 22:07:00 +00:00
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/* enables IRQ and FIQ in CPU */
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2018-12-28 10:30:39 +00:00
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cpsie if
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pop {pc}
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2018-12-30 22:45:46 +00:00
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/* TODO: to be implemented in a more useful way */
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.global panic
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panic:
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cpsid if
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ldr r0, =panic_msg
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bl printkl
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1:
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wfi
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b 1b
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