Files
86Box/src/vid_ega.h
OBattler 6e2b91c3d1 Pretty much all timer counters are now 32-bit again;
Fixed FDI stream parameters passed to the 86F handler, FDI stream images now read correctly again;
The National Semiconductors PC87306 SuperI/O chip now supports enhanced FDC mode.
2016-11-07 06:39:20 +01:00

84 lines
2.0 KiB
C

/* Copyright holders: Sarah Walker, Tenshi
see COPYING for more details
*/
typedef struct ega_t
{
mem_mapping_t mapping;
rom_t bios_rom;
uint8_t crtcreg;
uint8_t crtc[32];
uint8_t gdcreg[16];
int gdcaddr;
uint8_t attrregs[32];
int attraddr, attrff;
int attr_palette_enable;
uint8_t seqregs[64];
int seqaddr;
uint8_t miscout;
int vidclock;
uint8_t la, lb, lc, ld;
uint8_t stat;
int fast;
uint8_t colourcompare, colournocare;
int readmode, writemode, readplane;
int chain4, chain2_read, chain2_write;
int oddeven_page, oddeven_chain;
int enablevram, extvram;
uint8_t writemask;
uint32_t charseta, charsetb;
uint8_t egapal[16];
uint32_t *pallook;
int vtotal, dispend, vsyncstart, split, vblankstart;
int hdisp, htotal, hdisp_time, rowoffset;
int lowres, interlace;
int linedbl, rowcount;
double clock;
uint32_t ma_latch;
int vres;
int dispontime, dispofftime;
int vidtime;
uint8_t scrblank;
int dispon;
int hdisp_on;
uint32_t ma, maback, ca;
int vc;
int sc;
int linepos, vslines, linecountff, oddeven;
int con, cursoron, blink;
int scrollcache;
int firstline, lastline;
int firstline_draw, lastline_draw;
int displine;
uint8_t *vram;
int vrammask;
int video_res_x, video_res_y, video_bpp;
} ega_t;
void *ega_standalone_init();
void ega_out(uint16_t addr, uint8_t val, void *p);
uint8_t ega_in(uint16_t addr, void *p);
void ega_poll(void *p);
void ega_recalctimings(struct ega_t *ega);
void ega_write(uint32_t addr, uint8_t val, void *p);
uint8_t ega_read(uint32_t addr, void *p);
extern device_t ega_device;
extern device_t cpqega_device;
extern device_t sega_device;