2019-07-19 00:00:00 +00:00
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/* https://github.com/cirosantilli/x86-bare-metal-examples#pit */
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2018-12-04 09:46:27 +00:00
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2015-11-09 12:15:15 +01:00
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#include "common.h"
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BEGIN
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IVT_PIT_SETUP
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/* Operating mode: 0 rate generator. */
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OUTB $0b00110000, PORT_PIT_MODE
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/* TODO: Set the counter to 1. */
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mov $0x01, %al
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out %al, PORT_PIT_CHANNEL0
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mov $0x00, %al
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out %al, PORT_PIT_CHANNEL0
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sti
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jmp .
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handler:
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cli
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PUTC $'a
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PIC_EOI
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sti
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iret
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