libmwemu 0.24.0

x86 32/64bits and system internals emulator, for securely emulating malware and other stuff.
Documentation 
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use crate::emu;

pub fn lstrcpyn(emu: &mut emu::Emu) {
    let out_str1 = emu.regs().rcx;
    let in_str2 = emu.regs().rdx;
    let len = emu.regs().r8 as usize;

    let mut s = emu.maps.read_string(in_str2);
    if s.len() - 1 > len {
        s = s.chars().take(len).collect();
    }
    emu.maps.memset(out_str1, 0, len);
    emu.maps.write_string(out_str1, &s);

    log_red!(emu, "kernel32!lstrcpyn {}", s);

    emu.regs_mut().rax = out_str1;
}