Initial submission of the PCem-Experimental source code.

2016-06-26 00:34:39 +02:00
parent 09d7c4384f
commit fd2a5bc9f5
610 changed files with 184352 additions and 0 deletions
--- a/src/vid_ega.h
+++ b/src/vid_ega.h
@@ -0,0 +1,80 @@
+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;
+	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;