fixes for running linux binaries in an emulator on Windows. fix build…

… warning on arm64.

i8086.hxx

@@ -234,8 +234,8 @@ struct i8086
     bool is_parity_even8( uint8_t x ) // unused by apps and expensive to compute.
     {
 #ifdef _M_AMD64
-        return ( ! ( __popcnt16( x ) & 1 ) ); // less portable, but faster. Not on Q9650 CPU
-#elif defined( __APPLE__ )
+        return ( ! ( __popcnt16( x ) & 1 ) ); // less portable, but faster. Not on Q9650 CPU and other older Intel CPUs. use code below instead if needed.
+#elif defined( __aarch64__ )
         return ( ! ( std::bitset<8>( x ).count() & 1 ) );
 #else
         return ( ( ~ ( x ^= ( x ^= ( x ^= x >> 4 ) >> 2 ) >> 1 ) ) & 1 );

ntvdm.cxx

@@ -1860,12 +1860,13 @@ void traceDisplayBufferAsHex()
 
 // hacks for a bug in Windows Terminal. Map 7 through 15 to smiley faces.
 // Also, 27/0x1b/ESC/left-arrow is treated as ESC so it's mapped to the other left arrow in this table.
+// Also, 16/17 right/left arrows are mapped to big ugly block because Windows.
 // see this: https://github.com/dotnet/runtime/issues/80644
 
 static const wchar_t CP437_to_Unicode_Windows_Hack[ 32 ] =
 {
     0x0020, 0x263a, 0x263b, 0x2665, 0x2666, 0x2663, 0x2660, 0x263a, 0x263b, 0x263a, 0x263b, 0x263a, 0x263b, 0x263a, 0x263b, 0x263a,
-    0x25ba, 0x25c4, 0x2195, 0x203c, 0x00b6, 0x00a7, 0x25ac, 0x21a8, 0x2191, 0x2193, 0x2192, 0x25c4, 0x221f, 0x2194, 0x25b2, 0x25bc, // 16
+    0x2588, 0x2588, 0x2195, 0x203c, 0x00b6, 0x00a7, 0x25ac, 0x21a8, 0x2191, 0x2193, 0x2192, 0x25c4, 0x221f, 0x2194, 0x25b2, 0x25bc, // 16
 };
 
 // Map 0000 to ' ' for display purposes. It only happens if a DOS app has a bug and tries to display character 0. Like brief.exe.
@@ -1992,7 +1993,7 @@ void UpdateDisplayRow( uint32_t y )
         awc[ x ] = CP437_to_Unicode[ pbuf[ offset ] ];
         attribs[ x ] = pbuf[ 1 + offset ];
 
-#if defined( __riscv ) || defined( _WIN32 ) || defined( __aarch64 )
+#if defined( __riscv ) || defined( _WIN32 ) || defined( __aarch64__ )
         // When NTVDM built for RISC-V runs in RVOS/ARMOS emulation on Windows, CP 437
         // characters 7 through 13 are interpreted by Windows Terminal as control
         // characters, not actual chacters. This is after they are converted to
@@ -2005,7 +2006,7 @@ void UpdateDisplayRow( uint32_t y )
 #if defined( __riscv )
         if ( g_InRVOS )
 #endif
-#if defined( __aarch64 )
+#if defined( __aarch64__ )
         if ( g_InARMOS )
 #endif
         {