HLL libraries are compiled into the executable rather than dynamically
loaded as in early versions of System 4. These days AliceSoft does the
same thing.
Only copy strings when they are mutated. This avoids copying strings in
cases where neither the copy nor the original would be modified during
the lifetime of the copy, e.g. when passing strings by-value.
This is purely an optimization.
A bit of a hack: we insert an extra 'CALLSYS 0x0' instruction
(system.Exit) at the end of the code section, then set up a stack frame
so that when main() returns, it jumps to that instruction.
An assortment of instructions have been implemented so far, mostly basic
stuff such as stack management. The following program can be executed:
int main(void)
{
hello(2);
for (;;) {
system.Peek();
system.Sleep(1);
}
return 0;
}
void hello(int n)
{
int i;
for (i = 0; i < n; i++) {
system.Output("Hello, world! " + string(i));
}
}
Nunuhara Cabbage