libmwemu 0.25.4

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

use crate::color;
use crate::emu::Emu;
use iced_x86::Instruction;
// VMOVSS: 3-op reg form merges low lane with src1 upper; 2-op mem form zero-extends.
pub fn execute(emu: &mut Emu, ins: &Instruction, _s: usize, _r: bool) -> bool {
    emu.show_instruction(
        color!("Cyan"),
        &crate::emu::decoded_instruction::DecodedInstruction::X86(*ins),
    );
    if ins.op_count() == 3 {
        let s1 = emu.get_operand_xmm_value_128(ins, 1, true).unwrap_or(0);
        let s2 = emu.get_operand_xmm_value_128(ins, 2, true).unwrap_or(0);
        emu.set_operand_xmm_value_128(ins, 0, (s1 & !(0xffffffff as u128)) | (s2 & 0xffffffff));
    } else {
        let s = emu.get_operand_xmm_value_128(ins, 1, true).unwrap_or(0);
        emu.set_operand_xmm_value_128(ins, 0, s & 0xffffffff);
    }
    true
}