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hypervisor: emulator: Add MOVZX unit tests

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Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2021-02-03 00:34:46 +01:00
parent 5ada3f59c8
commit eee218f1f5
1 changed files with 62 additions and 0 deletions
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62
hypervisor/src/arch/x86/emulator/instructions/mov.rs
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@ -599,4 +599,66 @@ mod tests {
Ok(())
}
#[test]
// movzx eax, bl
fn test_movzx_r32_r8l() -> MockResult {
let bx: u16 = 0x8899;
let ip: u64 = 0x1000;
let cpu_id = 0;
let insn = [0x0f, 0xb6, 0xc3];
let mut vmm = MockVMM::new(ip, vec![(Register::BX, bx as u64)], None);
assert!(vmm.emulate_first_insn(cpu_id, &insn).is_ok());
let eax: u64 = vmm
.cpu_state(cpu_id)
.unwrap()
.read_reg(Register::EAX)
.unwrap();
assert_eq!(eax, (bx & 0xff) as u64);
Ok(())
}
#[test]
// movzx eax, bh
fn test_movzx_r32_r8h() -> MockResult {
let bx: u16 = 0x8899;
let ip: u64 = 0x1000;
let cpu_id = 0;
let insn = [0x0f, 0xb6, 0xc7];
let mut vmm = MockVMM::new(ip, vec![(Register::BX, bx as u64)], None);
assert!(vmm.emulate_first_insn(cpu_id, &insn).is_ok());
let eax: u64 = vmm
.cpu_state(cpu_id)
.unwrap()
.read_reg(Register::EAX)
.unwrap();
assert_eq!(eax, (bx >> 8) as u64);
Ok(())
}
#[test]
// movzx eax, byte ptr [rbx]
fn test_movzx_r32_m8() -> MockResult {
let rbx: u64 = 0x100;
let value: u8 = 0xaa;
let ip: u64 = 0x1000;
let cpu_id = 0;
let insn = [0x0f, 0xb7, 0x03];
let memory: [u8; 1] = value.to_le_bytes();
let mut vmm = MockVMM::new(ip, vec![(Register::RBX, rbx)], Some((rbx, &memory)));
assert!(vmm.emulate_first_insn(cpu_id, &insn).is_ok());
let eax: u64 = vmm
.cpu_state(cpu_id)
.unwrap()
.read_reg(Register::EAX)
.unwrap();
assert_eq!(eax, value as u64);
Ok(())
}
}