mirror of https://github.com/RevCurtisP/C02.git
21 lines
676 B
Plaintext
21 lines
676 B
Plaintext
/* MOS 6522 VIA Registers */
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struct via {
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char iorb; //Input/Output Register B
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char iora; //Input/Output Register A
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char ddrb; //Data Direction Register B
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char ddra; // Data Direction Register A
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char t1cl; //T1 Low-Order Counter
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char t1ch; //T1 High-Order Counter
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char t1ll; //T1L-L | T1 Low-Order Latches
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char t1lh; //T1 High-Order Latches
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char t2cl; //T2 Low-Order Latches
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char t2ch; //T2 High-Order Counter
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char sr; //Shift Register
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char acr; //Auxiliary Control Register
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char pcr; //Peripheral Control Register
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char ifr; //Interrupt Flag Register
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char ier; //Interrupt Enable Register
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char nhra; //Input/Output Register A (No Handshake)
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}
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