Hi

The following code crashes windows spur32 VM without crash.dmp:
(crashes not only in case of int8, but ulong, int16/32 and so on...)

Callback instantiation:��

createCallback
�� ��^ FFICallback��
�� signature: #(int8 (int8))
�� block: [ :value | value ]

C function:

int8_t test(int8_t(*function)(int8_t), int8_t��value) {
�� ��return function(value);
}

FFI call:

primCall: aCallback int8: aNumber
�� ��^ self ffiCall: #(int8 test(FFICallback aCallback, int8 aNumber))

Test case:

test
�� self��
�� �� assert: (self primCall: self createCallback int8: 0)
�� �� equals: 0


Windows 10.
VM from today:
http://files.pharo.org/vm/pharo-spur32/win/pharo-win-i386-201701130756-83c0ef1.zip
Image 60343:
http://files.pharo.org/image/60/60343.zip

P.S. what is the best place to report FFI / Alien issues?
P.P.S Iceberg works

Cheers,
Alex