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38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
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/*
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* _antic.h
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*
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* Freddy Offenga, 4/9/2000
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*
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* Internal include file, do not use directly.
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*
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*/
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#ifndef __ANTIC_H
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#define __ANTIC_H
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/* Define a structure with the antic register offsets */
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struct __antic {
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unsigned char dmactl; /* direct memory access control */
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unsigned char chactl; /* character mode control */
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unsigned char dlistl; /* display list pointer low-byte */
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unsigned char dlisth; /* display list pointer high-byte */
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unsigned char hscrol; /* horizontal scroll enable */
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unsigned char vscrol; /* vertical scroll enable */
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unsigned char unuse0; /* unused */
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unsigned char pmbase; /* msb of p/m base address */
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unsigned char unuse1; /* unused */
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unsigned char chbase; /* character base address */
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unsigned char wsync; /* wait for horizontal synchronization */
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unsigned char vcount; /* vertical line counter */
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unsigned char penh; /* light pen horizontal position */
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unsigned char penv; /* light pen vertical position */
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unsigned char nmien; /* non-maskable interrupt enable */
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unsigned char nmires; /* nmi reset/status */
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};
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/* End of _antic.h */
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#endif
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