68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* Copyright holders: Sarah Walker
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see COPYING for more details
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*/
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#ifndef VIDEO_MDA_H
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#define VIDEO_MDA_H
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typedef struct mda_t {
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mem_mapping_t mapping;
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uint8_t crtc[32];
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int crtcreg;
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uint8_t ctrl;
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uint8_t stat;
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uint64_t dispontime;
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uint64_t dispofftime;
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pc_timer_t timer;
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int firstline;
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int lastline;
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int fontbase;
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int linepos;
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int displine;
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int vc;
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int sc;
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uint16_t ma;
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uint16_t maback;
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int con;
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int coff;
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int cursoron;
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int dispon;
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int blink;
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int vsynctime;
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int vadj;
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int monitor_index;
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int prev_monitor_index;
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uint8_t *vram;
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} mda_t;
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#define VIDEO_MONITOR_PROLOGUE() \
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{ \
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mda->prev_monitor_index = monitor_index_global; \
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monitor_index_global = mda->monitor_index; \
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}
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#define VIDEO_MONITOR_EPILOGUE() \
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{ \
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monitor_index_global = mda->prev_monitor_index; \
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}
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void mda_init(mda_t *mda);
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void mda_setcol(int chr, int blink, int fg, uint8_t cga_ink);
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void mda_out(uint16_t addr, uint8_t val, void *priv);
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uint8_t mda_in(uint16_t addr, void *priv);
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void mda_write(uint32_t addr, uint8_t val, void *priv);
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uint8_t mda_read(uint32_t addr, void *priv);
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void mda_recalctimings(mda_t *mda);
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void mda_poll(void *priv);
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#ifdef EMU_DEVICE_H
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extern const device_t mda_device;
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#endif
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#endif /*VIDEO_MDA_H*/
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