Protect unused bits from being set in window flags
Former-commit-id: a618b4775de7276618dd11ace2e140d200fb066b
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@ -192,10 +192,12 @@ impl Bus for IoDevices {
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io.gpu.win1.top = top as u8;
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io.gpu.win1.top = top as u8;
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}
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}
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REG_WININ => {
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REG_WININ => {
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let value = value & !0xc0c0;
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io.gpu.win0.flags = WindowFlags::from(value & 0xff);
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io.gpu.win0.flags = WindowFlags::from(value & 0xff);
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io.gpu.win1.flags = WindowFlags::from(value >> 8);
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io.gpu.win1.flags = WindowFlags::from(value >> 8);
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}
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}
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REG_WINOUT => {
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REG_WINOUT => {
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let value = value & !0xc0c0;
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io.gpu.winout_flags = WindowFlags::from(value & 0xff);
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io.gpu.winout_flags = WindowFlags::from(value & 0xff);
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io.gpu.winobj_flags = WindowFlags::from(value >> 8);
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io.gpu.winobj_flags = WindowFlags::from(value >> 8);
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}
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}
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