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// extract 13-bit address bus from 64-bit pins
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// extract 13-bit address bus from 64-bit pins
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#define MC6847_GET_ADDR(p) ((uint16_t)(p & 0xFFFFULL))
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#define MC6847_GET_ADDR(p) ((uint16_t)(p & 0xFFFFULL))
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// merge 13-bit address bus value into 64-bit pins
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// merge 13-bit address bus value into 64-bit pins
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#define MC6847_SET_ADDR(p, a) \
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#define MC6847_SET_ADDR(p, a) \
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	{ p = ((p & ~0xFFFFULL) | ((a)&0xFFFFULL)); }
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	{ p = ((p & ~0xFFFFULL) | ((a) & 0xFFFFULL)); }
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// extract 8-bit data bus from 64-bit pins
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// extract 8-bit data bus from 64-bit pins
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#define MC6847_GET_DATA(p) ((uint8_t)(((p)&0xFF0000ULL) >> 16))
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#define MC6847_GET_DATA(p) ((uint8_t)(((p) & 0xFF0000ULL) >> 16))
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// merge 8-bit data bus value into 64-bit pins
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// merge 8-bit data bus value into 64-bit pins
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#define MC6847_SET_DATA(p, d) \
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#define MC6847_SET_DATA(p, d) \
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	{ p = (((p) & ~0xFF0000ULL) | (((d) << 16) & 0xFF0000ULL)); }
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	{ p = (((p) & ~0xFF0000ULL) | (((d) << 16) & 0xFF0000ULL)); }
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// public constants
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// public constants