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Remove non-functional EGA switches.

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Thomas Harte
2024-01-11 22:00:48 -05:00
parent e919386c79
commit 42731be11f
1 changed files with 5 additions and 13 deletions
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18
Components/6845/CRTC6845.hpp
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@@ -118,20 +118,12 @@ template <class BusHandlerT, Personality personality, CursorType cursor_type> cl
case 1: layout_.horizontal.displayed = value; break; case 1: layout_.horizontal.displayed = value; break;
case 2: layout_.horizontal.start_sync = value; break; case 2: layout_.horizontal.start_sync = value; break;
case 3: case 3:
if constexpr (is_ega) { layout_.horizontal.sync_width = value & 0xf;
} else { layout_.vertical.sync_lines = value >> 4;
layout_.horizontal.sync_width = value & 0xf; // TODO: vertical sync lines:
layout_.vertical.sync_lines = value >> 4; // "(0 means 16 on some CRTC. Not present on all CRTCs, fixed to 16 lines on these)"
// TODO: vertical sync lines:
// "(0 means 16 on some CRTC. Not present on all CRTCs, fixed to 16 lines on these)"
}
break;
case 4:
if constexpr (is_ega) {
} else {
layout_.vertical.total = value & 0x7f;
}
break; break;
case 4: layout_.vertical.total = value & 0x7f; break;
case 5: layout_.vertical.adjust = value & 0x1f; break; case 5: layout_.vertical.adjust = value & 0x1f; break;
case 6: layout_.vertical.displayed = value & 0x7f; break; case 6: layout_.vertical.displayed = value & 0x7f; break;
case 7: layout_.vertical.start_sync = value & 0x7f; break; case 7: layout_.vertical.start_sync = value & 0x7f; break;