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Fixed opCMPR to use register_value instead of accumulator.

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Mike Naberezny 2009-08-20 13:35:56 -07:00
parent 5dd6e9f95a
commit 5ea9dc9a70
1 changed files with 1 additions and 1 deletions
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src/py65/devices/mpu6502.py
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@ -355,7 +355,7 @@ class MPU:
self.flags |= self.CARRY + self.ZERO
elif register_value > tbyte:
self.flags |= self.CARRY
self.flags |= (self.a - tbyte) & self.NEGATIVE
self.flags |= (register_value - tbyte) & self.NEGATIVE
def opSBC(self, x):
data = self.ByteAt(x())