On 29/12/2021 00:48, Martin Frb via fpc-devel wrote:
I don't have an M1 myself, but according to the data from the thread on
the lazarus mail list, there is a bug in the 3.3.1 asm generator for M1
var pn8: pint8; // pointer signed byte
In the below expression ...(not pn8^)...
"pn8^" is loaded to w0 and sign extended. From this point onwards
operations on the value should be 32 bits (the value has been extended,
and the full 32 bits are later used).
but "not" only affects the lowest 8 bit.
Apparently in 3.2.2 (or was it 3.2.0) there was
mvn w0,w0
If someone can confirm tihs....
It's probably caused by c90616944d3bde7b36e924d27a0790195d61f95c (Florian)
Jonas
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