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bugfix: sbc calculation for 16-bit

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This commit is contained in:
BigEd 2011-08-22 15:50:42 +01:00
parent c437d3ee3f
commit 3b70e8f495
1 changed files with 1 additions and 1 deletions
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src/py65/devices/mpu6502.py
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@ -437,7 +437,7 @@ class MPU:
data = result & self.byteMask
if data == 0:
self.p |= self.ZERO
if result & 0x100:
if result > self.byteMask:
self.p |= self.CARRY
self.p |= data & self.NEGATIVE
self.a = data