185 lines
4.2 KiB
C
185 lines
4.2 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 8514/A card from IBM for the MCA bus and
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* generic ISA bus clones without vendor extensions.
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*
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*
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*
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* Authors: TheCollector1995
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*
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* Copyright 2022 TheCollector1995.
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*/
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#ifndef VIDEO_8514A_H
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#define VIDEO_8514A_H
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typedef struct ibm8514_t {
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uint8_t pos_regs[8];
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int force_old_addr;
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int type;
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int local;
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int bpp;
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uint32_t vram_size;
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uint32_t vram_mask;
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PALETTE vgapal;
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uint8_t dac_mask;
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uint8_t dac_status;
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uint32_t *map8;
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int dac_addr;
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int dac_pos;
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int dac_r;
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int dac_g;
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int internal_pitch;
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struct {
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uint16_t subsys_cntl;
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uint16_t setup_md;
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uint8_t advfunc_cntl;
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uint8_t ext_advfunc_cntl;
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uint16_t cur_y;
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uint16_t cur_y_bitres;
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uint16_t cur_x;
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uint16_t cur_x_bitres;
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int16_t desty_axstp;
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int16_t destx_distp;
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int16_t err_term;
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int16_t maj_axis_pcnt;
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uint16_t cmd;
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uint16_t cmd_back;
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uint16_t short_stroke;
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uint16_t bkgd_color;
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uint16_t frgd_color;
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uint16_t wrt_mask;
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uint16_t rd_mask;
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uint16_t color_cmp;
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uint16_t bkgd_mix;
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uint16_t frgd_mix;
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uint16_t multifunc_cntl;
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uint16_t multifunc[16];
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int16_t clip_left;
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int16_t clip_top;
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uint8_t pix_trans[2];
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int poly_draw;
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int ssv_state;
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int x1;
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int x2;
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int x3;
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int y1;
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int y2;
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int sys_cnt;
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int sys_cnt2;
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int temp_cnt;
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int16_t cx;
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int16_t cy;
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int16_t oldcy;
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int16_t sx;
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int16_t sy;
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int16_t dx;
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int16_t dy;
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int16_t err;
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uint32_t src;
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uint32_t dest;
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uint32_t newsrc_blt;
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uint32_t newdest_blt;
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uint32_t newdest_in;
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uint32_t newdest_out;
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uint8_t *writemono;
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uint8_t *nibbleset;
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int x_count;
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int xx_count;
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int y_count;
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int input;
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int output;
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uint16_t cur_x_bit12;
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uint16_t cur_y_bit12;
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int ssv_len;
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uint8_t ssv_dir;
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uint8_t ssv_draw;
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int odd_in;
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int odd_out;
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uint16_t scratch;
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int fill_state;
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int xdir;
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int ydir;
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uint32_t ge_offset;
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} accel;
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uint16_t test;
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int ibm_mode;
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int v_total;
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int dispend;
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int v_syncstart;
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int split;
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int h_disp;
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int h_disp_old;
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int h_total;
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int h_disp_time;
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int rowoffset;
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int dispon;
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int hdisp_on;
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int linecountff;
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int vc;
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int linepos;
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int oddeven;
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int cursoron;
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int blink;
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int scrollcache;
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int firstline;
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int lastline;
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int firstline_draw;
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int lastline_draw;
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int displine;
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int fullchange;
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uint32_t ma;
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uint32_t maback;
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uint8_t *vram;
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uint8_t *changedvram;
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uint8_t linedbl;
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uint8_t data_available;
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uint8_t data_available2;
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uint8_t scanmodulos;
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uint8_t rowcount;
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int htotal;
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int hdisp;
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int vtadj;
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int vdadj;
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int vsadj;
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int sc;
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int vtb;
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int vdb;
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int vsb;
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int vsyncstart;
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int vsyncwidth;
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int vtotal;
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int vdisp;
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int disp_cntl;
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int interlace;
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uint8_t subsys_cntl;
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uint8_t subsys_stat;
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atomic_int force_busy;
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atomic_int force_busy2;
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int blitter_busy;
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uint64_t blitter_time;
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uint64_t status_time;
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int pitch;
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int ext_pitch;
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int ext_crt_pitch;
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} ibm8514_t;
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#endif /*VIDEO_8514A_H*/
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