diff --git a/Machines/Apple/AppleII/Video.hpp b/Machines/Apple/AppleII/Video.hpp index 763f3c1cb..afd332efc 100644 --- a/Machines/Apple/AppleII/Video.hpp +++ b/Machines/Apple/AppleII/Video.hpp @@ -174,7 +174,10 @@ template class Video: public VideoBase { // Apply carry into the row counter and test it for location. int mapped_row = row_ + (mapped_column / 65); - return (mapped_row % 262) >= 192; + + // Per http://www.1000bit.it/support/manuali/apple/technotes/iigs/tn.iigs.040.html + // "on the IIe, the screen is blanked when the bit is low". + return (mapped_row % 262) < 192; } private: