Add v0.7 source

2013-04-21 14:54:35 +01:00 · 2013-04-21 14:54:35 +01:00 · 3c253c2cf8
commit 3c253c2cf8
188 changed files with 52566 additions and 0 deletions
--- a/src/vid_oti067.c
+++ b/src/vid_oti067.c
@ -0,0 +1,108 @@
+/*Oak OTI067 emulation*/
+#include "ibm.h"
+#include "video.h"
+#include "vid_svga.h"
+
+static int oti067_index;
+static uint8_t oti067_regs[32];
+
+void oti067_out(uint16_t addr, uint8_t val)
+{
+        uint8_t old;
+        
+        if ((addr&0xFFF0) == 0x3B0) addr |= 0x20;
+
+        switch (addr)
+        {
+                case 0x3D4:
+                crtcreg=val&31;
+                return;
+                case 0x3D5:
+                if (crtcreg <= 7 && crtc[0x11] & 0x80) return;
+                old=crtc[crtcreg];
+                crtc[crtcreg]=val;
+                if (old!=val)
+                {
+                        if (crtcreg<0xE || crtcreg>0x10)
+                        {
+                                fullchange=changeframecount;
+                                svga_recalctimings();
+                        }
+                }
+                break;
+
+                case 0x3DE: oti067_index=val&0x1F; return;
+                case 0x3DF:
+                oti067_regs[oti067_index]=val;
+                switch (oti067_index)
+                {
+                        case 0xD:
+                        vrammask=(val&0xC)?0x7FFFF:0x3FFFF;
+                        break;
+                        case 0x11:
+                        svgarbank=(val&0xF)*65536;
+                        svgawbank=(val>>4)*65536;
+                        break;
+                }
+                return;
+        }
+        svga_out(addr,val);
+}
+
+uint8_t oti067_in(uint16_t addr)
+{
+        uint8_t temp;
+        
+        if ((addr&0xFFF0) == 0x3B0) addr |= 0x20;
+        
+        switch (addr)
+        {
+                case 0x3D4:
+                return crtcreg;
+                case 0x3D5:
+                return crtc[crtcreg];
+                case 0x3DE: return oti067_index|(2<<5);
+                case 0x3DF: 
+                if (oti067_index==0x10) return 0x40;
+                if (oti067_index==0xD) return oti067_regs[oti067_index]|0xC0;
+                return oti067_regs[oti067_index];
+        }
+        return svga_in(addr);
+}
+
+void oti067_recalctimings()
+{
+        if (oti067_regs[0x14]&0x08) svga_ma|=0x10000;
+        if (oti067_regs[0x0D]&0x0C) svga_rowoffset<<=1;
+        svga_interlace = oti067_regs[0x14]&0x80;
+}
+
+int oti067_init()
+{
+        svga_recalctimings_ex = oti067_recalctimings;
+        svga_vram_limit = 1 << 19; /*512kb*/
+        vrammask = 0x7ffff;
+        return svga_init();
+}
+
+GFXCARD vid_oti067 =
+{
+        oti067_init,
+        /*IO at 3Cx/3Dx*/
+        oti067_out,
+        oti067_in,
+        /*IO at 3Ax/3Bx*/
+        video_out_null,
+        video_in_null,
+
+        svga_poll,
+        svga_recalctimings,
+
+        svga_write,
+        video_write_null,
+        video_write_null,
+
+        svga_read,
+        video_read_null,
+        video_read_null
+};