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mode X double scan fix (malc)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@364 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-08-11 20:33:04 +00:00
parent 76bc683820
commit 9da8ba18e6
1 changed files with 4 additions and 2 deletions
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6
hw/vga.c
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@ -1124,7 +1124,10 @@ static void vga_draw_graphic(VGAState *s, int full_update)
disp_width = width; disp_width = width;
shift_control = (s->gr[0x05] >> 5) & 3; shift_control = (s->gr[0x05] >> 5) & 3;
double_scan = (s->cr[0x09] & 0x80); if (shift_control > 1)
double_scan = ((s->cr[0x09] & 0x1f) != 0);
else
double_scan = (s->cr[0x09] & 0x80);
if (shift_control != s->shift_control || if (shift_control != s->shift_control ||
double_scan != s->double_scan) { double_scan != s->double_scan) {
full_update = 1; full_update = 1;
@ -1151,7 +1154,6 @@ static void vga_draw_graphic(VGAState *s, int full_update)
} else { } else {
full_update |= update_palette256(s); full_update |= update_palette256(s);
v = VGA_DRAW_LINE8D2; v = VGA_DRAW_LINE8D2;
double_scan = 1; /* XXX: explain me why it is always activated */
} }
vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(s->ds->depth)]; vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(s->ds->depth)];