42 lines
745 B
C
42 lines
745 B
C
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#ifndef PIC_H
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#define PIC_H
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#define MASTER_PORT_A 0x20
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#define MASTER_PORT_B 0x21
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#define SLAVE_PORT_A 0xa0
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#define SLAVE_PORT_B 0xa1
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// ICW1
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#define ICW1_ICW4 0x1
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#define ICW1_SINGLE 0x2
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#define ICW_LT 0x8
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#define ICW1_INIT 0x10
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// ICW2
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#define ICW2_M_OFFSET 0x20
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#define ICW2_S_OFFSET 0x28
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// ICW3 / OCW1
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#define PIC_PIN_0 0x1
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#define PIC_PIN_1 0x2
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#define PIC_PIN_2 0x4
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#define PIC_PIN_3 0x8
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#define PIC_PIN_4 0x10
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#define PIC_PIN_5 0x20
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#define PIC_PIN_6 0x40
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#define PIC_PIN_7 0x80
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// ICW4
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#define ICW4_INIT 0x1
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#define ICW4_AUTO_EOI 0x2
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#define ICW4_NESTED 0x10
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// OCW2
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#define OCW2_EOI 0x20
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#define OCW2_SPEC 0x40
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#define OCW2_ROT 0x80
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void remap_pic(void);
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#endif /* !PIC_H */
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