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vga: after turning off vbe, switch back to the current mode, rather than staying in graphical mode

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fixes gnu hurd, which leaves vbe mode without writing to attribute mode control
This commit is contained in:
Fabian 2025-08-13 13:43:20 -06:00
parent 46fbe8fa40
commit 4aa1c16995
1 changed files with 10 additions and 0 deletions
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10
src/vga.js
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@ -2226,6 +2226,16 @@ VGAScreen.prototype.port1CF_write = function(value)
this.set_size_graphical(this.svga_width, this.svga_height, this.svga_width, this.svga_height, this.svga_bpp);
}
if(was_enabled && !this.svga_enabled)
{
const is_graphical = (this.attribute_mode & 0x1) !== 0;
this.graphical_mode = is_graphical;
this.screen.set_mode(is_graphical);
this.update_vga_size();
this.set_font_bitmap(false);
this.complete_redraw();
}
if(!this.svga_enabled)
{
this.svga_bank_offset = 0;