libmwemu 0.25.1

x86 32/64bits and system internals emulator, for securely emulating malware and other stuff.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

use crate::color;
use crate::emu::Emu;
use iced_x86::Instruction;

// VPANDN dest, src1, src2: dest = (NOT src1) AND src2.
pub fn execute(emu: &mut Emu, ins: &Instruction, _instruction_sz: usize, _rep_step: bool) -> bool {
    emu.show_instruction(color!("Green"), &crate::emu::decoded_instruction::DecodedInstruction::X86(*ins));

    match emu.get_operand_sz(ins, 1) {
        128 => {
            let source1 = match emu.get_operand_xmm_value_128(ins, 1, true) {
                Some(v) => v,
                None => return false,
            };
            let source2 = match emu.get_operand_xmm_value_128(ins, 2, true) {
                Some(v) => v,
                None => return false,
            };
            emu.set_operand_xmm_value_128(ins, 0, (!source1) & source2);
        }
        256 => {
            let source1 = match emu.get_operand_ymm_value_256(ins, 1, true) {
                Some(v) => v,
                None => return false,
            };
            let source2 = match emu.get_operand_ymm_value_256(ins, 2, true) {
                Some(v) => v,
                None => return false,
            };
            emu.set_operand_ymm_value_256(ins, 0, (!source1) & source2);
        }
        _ => unreachable!(""),
    }
    true
}