Index: S:/svn/mess/src/emu/video/pc_vga.c
===================================================================
--- S:/svn/mess/src/emu/video/pc_vga.c  (revision 15908)
+++ S:/svn/mess/src/emu/video/pc_vga.c  (working copy)
@@ -261,6 +261,7 @@
    int pos, line, column, mask, w, h, addr;
    UINT8 blink_en,fore_col,back_col;
    pen_t pen;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    if(vga.crtc.cursor_enable)
        vga.cursor.visible = machine.primary_screen->frame_number() & 0x10;
@@ -294,7 +295,7 @@
                    else
                        pen = vga.pens[back_col];

-                   if(!machine.primary_screen->visible_area().contains(column*width+w, line+h))
+                   if(!visarea.contains(column*width+w, line+h))
                        continue;
                    bitmapline[column*width+w] = pen;

@@ -307,7 +308,7 @@
                    else
                        pen = vga.pens[back_col];

-                   if(!machine.primary_screen->visible_area().contains(column*width+w, line+h))
+                   if(!visarea.contains(column*width+w, line+h))
                        continue;
                    bitmapline[column*width+w] = pen;
                }
@@ -318,7 +319,7 @@
                     (h<=vga.crtc.cursor_scan_end)&&(h<height)&&(line+h<TEXT_LINES);
                     h++)
                {
-                   if(!machine.primary_screen->visible_area().contains(column*width, line+h))
+                   if(!visarea.contains(column*width, line+h))
                        continue;
                    bitmap.plot_box(column*width, line+h, width, 1, vga.pens[attr&0xf]);
                }
@@ -333,6 +334,7 @@
    int height = vga.crtc.maximum_scan_line * (vga.crtc.scan_doubling + 1);
    UINT32 *bitmapline;
    pen_t pen;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    /**/
    for (addr=EGA_START_ADDRESS, pos=0, line=0; line<LINES;
@@ -354,7 +356,7 @@
                for (i = 7; i >= 0; i--)
                {
                    pen = vga.pens[(data[0]&1) | (data[1]&2) | (data[2]&4) | (data[3]&8)];
-                   if(!machine.primary_screen->visible_area().contains(c+i, line + yi))
+                   if(!visarea.contains(c+i, line + yi))
                        continue;
                    bitmapline[c+i] = pen;

@@ -378,6 +380,7 @@
    int yi;
    int xi;
    int pel_shift = 0;//vga.attribute.pel_shift; /* TODO: timing bug with this */
+   const rectangle& visarea = machine.primary_screen->visible_area();

    /* line compare is screen sensitive */
    mask_comp = 0x3ff; //| (LINES & 0x300);
@@ -401,7 +404,7 @@

                    for(xi=0;xi<8;xi++)
                    {
-                       if(!machine.primary_screen->visible_area().contains(c+xi-pel_shift, line + yi))
+                       if(!visarea.contains(c+xi-pel_shift, line + yi))
                            continue;
                        bitmapline[c+xi-pel_shift] = machine.pens[vga.memory[(pos & 0xffff)+((xi >> 1)*0x10000)]];
                    }
@@ -428,7 +431,7 @@

                    for(xi=0;xi<0x10;xi++)
                    {
-                       if(!machine.primary_screen->visible_area().contains(c+xi-pel_shift, line + yi))
+                       if(!visarea.contains(c+xi-pel_shift, line + yi))
                            continue;
                        bitmapline[c+xi-pel_shift] = machine.pens[vga.memory[(pos+(xi >> 1)) & 0xffff]];
                    }
@@ -446,6 +449,7 @@
    UINT32 addr;
    pen_t pen;
    int width;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    width = (vga.crtc.horz_disp_end + 1) * 8;

@@ -462,7 +466,7 @@
                for(xi=0;xi<4;xi++)
                {
                    pen = vga.pens[(vga.memory[addr] >> (6-xi*2)) & 3];
-                   if(!machine.primary_screen->visible_area().contains(x+xi, y * height + yi))
+                   if(!visarea.contains(x+xi, y * height + yi))
                        continue;
                    bitmapline[x+xi] = pen;
                }
@@ -481,6 +485,7 @@
    UINT32 addr;
    pen_t pen;
    int width;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    width = (vga.crtc.horz_disp_end + 1) * 8;

@@ -497,7 +502,7 @@
                for(xi=0;xi<8;xi++)
                {
                    pen = vga.pens[(vga.memory[addr] >> (7-xi)) & 1];
-                   if(!machine.primary_screen->visible_area().contains(x+xi, y * height + yi))
+                   if(!visarea.contains(x+xi, y * height + yi))
                        continue;
                    bitmapline[x+xi] = pen;
                }
@@ -517,6 +522,7 @@
    int yi;
    int xi;
    UINT8 start_shift;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    /* line compare is screen sensitive */
    mask_comp = 0x3ff;
@@ -542,7 +548,7 @@

                    for(xi=0;xi<8;xi++)
                    {
-                       if(!machine.primary_screen->visible_area().contains(c+xi, line + yi))
+                       if(!visarea.contains(c+xi, line + yi))
                            continue;
                        bitmapline[c+xi] = machine.pens[vga.memory[(pos+(xi))]];
                    }
@@ -561,6 +567,7 @@
    int yi;
    int xm;
    int pos, line, column, c, addr, curr_addr;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    UINT32 *bitmapline;
 //  UINT16 mask_comp;
@@ -581,7 +588,7 @@
            {
                int r,g,b;

-               if(!machine.primary_screen->visible_area().contains(c+xi, line + yi))
+               if(!visarea.contains(c+xi, line + yi))
                    continue;

                r = (MV(pos+xm)&0x7c00)>>10;
@@ -605,6 +612,7 @@
    int yi;
    int xm;
    int pos, line, column, c, addr, curr_addr;
+   const rectangle& visarea = machine.primary_screen->visible_area();

    UINT32 *bitmapline;
 //  UINT16 mask_comp;
@@ -625,7 +633,7 @@
            {
                int r,g,b;

-               if(!machine.primary_screen->visible_area().contains(c+xi, line + yi))
+               if(!visarea.contains(c+xi, line + yi))
                    continue;

                r = (MV(pos+xm)&0xf800)>>11;
@@ -650,6 +658,7 @@
    int xm;
    int pos, line, column, c, addr, curr_addr;
    UINT32 *bitmapline;
+   const rectangle& visarea = machine.primary_screen->visible_area();

 //  UINT16 mask_comp;

@@ -669,7 +678,7 @@
            {
                int r,g,b;

-               if(!machine.primary_screen->visible_area().contains(c+xi, line + yi))
+               if(!visarea.contains(c+xi, line + yi))
                    continue;

                r = (MD(pos+xm)&0xff0000)>>16;
@@ -691,6 +700,7 @@
    int xm;
    int pos, line, column, c, addr, curr_addr;
    UINT32 *bitmapline;
+   const rectangle& visarea = machine.primary_screen->visible_area();

 //  UINT16 mask_comp;

@@ -710,7 +720,7 @@
            {
                int r,g,b;

-               if(!machine.primary_screen->visible_area().contains(c+xi, line + yi))
+               if(!visarea.contains(c+xi, line + yi))
                    continue;

                r = (MD(pos+xm)&0xff0000)>>16;