Fix mouse column limit on text mode (issue #4353)

joncampbell123 · Jul 25, 2023 · ecf4932 · ecf4932
1 parent 4753f7a
commit ecf4932
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/ints/mouse.cpp b/src/ints/mouse.cpp
@@ -1288,6 +1288,8 @@ void Mouse_AfterNewVideoMode(bool setmode) {
             Bitu rows = IS_EGAVGA_ARCH?real_readb(BIOSMEM_SEG,BIOSMEM_NB_ROWS):24;
             if ((rows == 0) || (rows > 250)) rows = 25 - 1;
             mouse.max_y = 8*(rows+1) - 1;
+            uint16_t cols = real_readb(BIOSMEM_SEG, BIOSMEM_NB_COLS);
+            mouse.max_x = cols * 8 - 1;
         }
         break;
     }