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22 lines
490 B
C
22 lines
490 B
C
#pragma once
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#include "../../emul.h"
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// Each port is a bitmask of each pin's status. 1 means high.
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// From Bit 0 to 6: up, down, left, right, TL, TR, TH
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typedef struct {
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uint8_t ctl;
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Tristate TRA;
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Tristate THA;
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Tristate TRB;
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Tristate THB;
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IORD portA_rd;
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IORD portB_rd;
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} Ports;
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void ports_init(Ports *ports);
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uint8_t ports_ctl_rd(Ports *ports);
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void ports_ctl_wr(Ports *ports, uint8_t val);
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uint8_t ports_A_rd(Ports *ports);
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uint8_t ports_B_rd(Ports *ports);
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