Mercurial > repos > blastem
diff gentests.py @ 608:097c172839d4
Don't use out of bounds displacements in indexed mode even if our targeted address is out of RAM range
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Sat, 27 Dec 2014 14:50:28 -0800 |
| parents | bfbb8613efb4 |
| children | 188a60def81f |
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--- a/gentests.py Fri Dec 26 21:26:25 2014 -0800 +++ b/gentests.py Sat Dec 27 14:50:28 2014 -0800 @@ -178,9 +178,17 @@ self.disp -= (address & 0xFFFFFF) else: self.disp += 0xE00000-(address & 0xFFFFFF) + if self.disp > 127: + self.disp = 127 + elif self.disp < -128: + self.disp = -128 address = base + index + self.disp elif (address & 0xFFFFFF) > 0xFFFFFC: self.disp -= (address & 0xFFFFFF) - 0xFFFFFC + if self.disp > 127: + self.disp = 127 + elif self.disp < -128: + self.disp = -128 address = base + index + self.disp if size != 'b' and address & 1: self.disp = self.disp ^ 1