Start working on proper ABI implementation
Some bugfixes and add Jameson's ccall tests
Make ccall test pass
WIP on cfunction
Make cfunction ABI compliant
Fix Varargs ccalls
x86 ABI compliance
Progress toward Win64
Proper platform detection for ccalltest
Fix alignment in memcpy
Factor out some common code
Fix a bug in the last commit
Make win64 work
Rebase