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Small refactor for reading $C01x soft switch status flags

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Prevent Apple II from reading $C01x/$C07F soft switch status flags
This commit is contained in:
tomcw
2018-06-30 14:30:30 +01:00
parent 5f87cc0f7c
commit 9cacf8d90d
6 changed files with 30 additions and 86 deletions
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source/Video.cpp
-28
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@@ -338,34 +338,6 @@ void VideoBenchmark () {
MB_ICONINFORMATION | MB_SETFOREGROUND);
}
//===========================================================================
BYTE VideoCheckMode (WORD, WORD address, BYTE, BYTE, ULONG uExecutedCycles)
{
address &= 0xFF;
if (address == 0x7F)
return MemReadFloatingBus(SW_DHIRES != 0, uExecutedCycles);
else {
BOOL result = 0;
switch (address) {
case 0x1A: result = SW_TEXT; break;
case 0x1B: result = SW_MIXED; break;
case 0x1D: result = SW_HIRES; break;
case 0x1E: result = g_nAltCharSetOffset; break;
case 0x1F: result = SW_80COL; break;
case 0x7F: result = SW_DHIRES; break;
}
return KeybGetKeycode() | (result ? 0x80 : 0);
}
}
//===========================================================================
BYTE VideoCheckVbl ( ULONG uExecutedCycles )
{
bool bVblBar = VideoGetVblBar(uExecutedCycles);
BYTE r = KeybGetKeycode();
return (r & ~0x80) | (bVblBar ? 0x80 : 0);
}
// This is called from PageConfig
//===========================================================================
void VideoChooseMonochromeColor ()