GPU: Ignore display start bit 0 instead of reducing width

5 years ago · 4d1880091e
parent 93abf8e53d
commit 4d1880091e
1 changed files with 2 additions and 2 deletions
--- a/src/core/gpu.h
+++ b/src/core/gpu.h
@ -623,14 +623,14 @@ protected:
  {
    struct Regs
    {
-      static constexpr u32 DISPLAY_ADDRESS_START_MASK = 0b111'11111111'11111111;
+      static constexpr u32 DISPLAY_ADDRESS_START_MASK = 0b111'11111111'11111110;
      static constexpr u32 HORIZONTAL_DISPLAY_RANGE_MASK = 0b11111111'11111111'11111111;
      static constexpr u32 VERTICAL_DISPLAY_RANGE_MASK = 0b1111'11111111'11111111;

      union
      {
        u32 display_address_start;
-        BitField<u32, u16, 1, 9> X;
+        BitField<u32, u16, 0, 10> X;
        BitField<u32, u16, 10, 9> Y;
      };
      union