80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Emulation of the Hercules graphics cards.
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*
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*
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*
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* Authors: Sarah Walker, <https://pcem-emulator.co.uk/>
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* Miran Grca, <mgrca8@gmail.com>
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* Jasmine Iwanek, <jriwanek@gmail.com>
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*
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* Copyright 2008-2019 Sarah Walker.
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* Copyright 2016-2019 Miran Grca.
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* Copyright 2021 Jasmine Iwanek.
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*/
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#ifndef VIDEO_HERCULES_H
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#define VIDEO_HERCULES_H
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typedef struct {
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mem_mapping_t mapping;
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uint8_t crtc[32];
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uint8_t charbuffer[4096];
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int crtcreg;
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uint8_t ctrl;
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uint8_t ctrl2;
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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 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 lp_ff;
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int fullchange;
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int cols[256][2][2];
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uint8_t *vram;
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int monitor_index;
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int prev_monitor_index;
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} hercules_t;
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#define VIDEO_MONITOR_PROLOGUE() \
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{ \
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dev->prev_monitor_index = monitor_index_global; \
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monitor_index_global = dev->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 = dev->prev_monitor_index; \
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}
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static void *hercules_init(const device_t *info);
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#endif /*VIDEO_HERCULES_H*/
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