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extern crate x86_rs;
use x86_rs::{Instruction, Opcode, decode_one};
fn decode(bytes: &[u8]) -> Option<Instruction> {
let mut instr = Instruction::invalid();
match decode_one(bytes, &mut instr) {
Some(()) => Some(instr),
None => None
}
}
#[test]
fn test_mov() {
assert_eq!(&format!("{}", decode(
&[0x48, 0xc7, 0x04, 0x24, 0x00, 0x00, 0x00, 0x00]
).unwrap()), "mov [rsp], 0x0");
assert_eq!(&format!("{}", decode(
&[0x48, 0x89, 0x44, 0x24, 0x08]
).unwrap()), "mov [rsp + 0x8], rax");
assert_eq!(&format!("{}", decode(
&[0x48, 0x89, 0x43, 0x18]
).unwrap()), "mov [rbx + 0x18], rax");
assert_eq!(&format!("{}", decode(
&[0x48, 0xc7, 0x43, 0x10, 0x00, 0x00, 0x00, 0x00]
).unwrap()), "mov [rbx + 0x10], 0x0");
assert_eq!(&format!("{}", decode(
&[0x49, 0x89, 0x4e, 0x08]
).unwrap()), "mov [r14 + 0x8], rcx");
assert_eq!(&format!("{}", decode(
&[0x48, 0x8b, 0x32]
).unwrap()), "mov rsi, [rdx]");
assert_eq!(&format!("{}", decode(
&[0x49, 0x89, 0x46, 0x10]
).unwrap()), "mov [r14 + 0x10], rax");
assert_eq!(&format!("{}", decode(
&[0x4d, 0x0f, 0x43, 0xec, 0x49]
).unwrap()), "cmovnb r13, r12");
assert_eq!(&format!("{}", decode(
&[0x0f, 0xb6, 0x06]
).unwrap()), "movzx eax, byte [rsi]");
assert_eq!(&format!("{}", decode(
&[0x0f, 0xb7, 0x06]
).unwrap()), "movzx eax, word [rsi]");
}
#[test]
fn test_stack() {
assert_eq!(&format!("{}", decode(
&[0x66, 0x41, 0x50]
).unwrap()), "push r8w");
}
#[test]
fn test_prefixes() {
assert_eq!(&format!("{}", decode(
&[0x66, 0x41, 0x31, 0xc0]
).unwrap()), "xor r8w, ax");
assert_eq!(&format!("{}", decode(
&[0x66, 0x41, 0x32, 0xc0]
).unwrap()), "xor al, r8b");
assert_eq!(&format!("{}", decode(
&[0x40, 0x32, 0xc5]
).unwrap()), "xor al, bpl");
}
#[test]
fn test_control_flow() {
assert_eq!(&format!("{}", decode(
&[0x73, 0x31]
).unwrap()), "jnb 0x31");
assert_eq!(&format!("{}", decode(
&[0x72, 0x5a]
).unwrap()), "jb 0x5a");
assert_eq!(&format!("{}", decode(
&[0x0f, 0x86, 0x8b, 0x01, 0x00, 0x00]
).unwrap()), "jna 0x18b");
assert_eq!(&format!("{}", decode(
&[0x74, 0x47]
).unwrap()), "jz 0x47");
assert_eq!(&format!("{}", decode(
&[0xff, 0x15, 0x7e, 0x72, 0x24, 0x00]
).unwrap()), "call [rip + 0x24727e]");
assert_eq!(&format!("{}", decode(
&[0xc3]
).unwrap()), "ret");
}
#[test]
fn test_test_cmp() {
assert_eq!(&format!("{}", decode(
&[0x48, 0x3d, 0x01, 0xf0, 0xff, 0xff]
).unwrap()), "cmp rax, 0xfffffffffffff001");
assert_eq!(&format!("{}", decode(
&[0x3d, 0x01, 0xf0, 0xff, 0xff]
).unwrap()), "cmp eax, 0xfffff001");
assert_eq!(&format!("{}", decode(
&[0x48, 0x83, 0xf8, 0xff]
).unwrap()), "cmp rax, 0xffffffffffffffff");
assert_eq!(&format!("{}", decode(
&[0x48, 0x39, 0xc6]
).unwrap()), "cmp rsi, rax");
}
#[test]
fn test_misc() {
assert_eq!(&format!("{}", decode(
&[0x48, 0x8d, 0xa4, 0xc7, 0x20, 0x00, 0x00, 0x12]
).unwrap()), "lea rsp, [rdi + rax * 8 + 0x12000020]");
assert_eq!(&format!("{}", decode(
&[0x33, 0xc0]
).unwrap()), "xor eax, eax");
assert_eq!(&format!("{}", decode(
&[0x48, 0x8d, 0x53, 0x08]
).unwrap()), "lea rdx, [rbx + 0x8]");
assert_eq!(&format!("{}", decode(
&[0x31, 0xc9]
).unwrap()), "xor ecx, ecx");
assert_eq!(&format!("{}", decode(
&[0x48, 0x29, 0xc8]
).unwrap()), "sub rax, rcx");
assert_eq!(&format!("{}", decode(
&[0x48, 0x03, 0x0b]
).unwrap()), "add rcx, [rbx]");
assert_eq!(&format!("{}", decode(
&[0x5b]
).unwrap()), "pop rbx");
assert_eq!(&format!("{}", decode(
&[0x41, 0x5e]
).unwrap()), "pop r14");
assert_eq!(&format!("{}", decode(
&[0x48, 0x8d, 0x0c, 0x12]
).unwrap()), "lea rcx, [rdx + rdx]");
assert_eq!(&format!("{}", decode(
&[0xf6, 0xc2, 0x18]
).unwrap()), "test dl, 0x18");
}
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