[Vm-dev] simulation in BitBltSimulation
Eliot Miranda
eliot.miranda at gmail.com
Sat Mar 15 01:16:49 UTC 2014
Hi Tim,
I'm simulating bitblt code and have a situation where
(cmShiftTable at: 0) = 4294967280
(cmShiftTable at: 0) hex '16rFFFFFFF0'
Clearly this should be -4.
This breaks simulation because
(sourcePixel bitAnd: (cmMaskTable at: 0)) bitShift: (cmShiftTable
at: 0)
is trying to make a 4Gb LargePositiveInteger ;-).
How can we make it so?
--
best,
Eliot
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