diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/test.rs | 177 |
1 files changed, 152 insertions, 25 deletions
diff --git a/test/test.rs b/test/test.rs index 7af242d..45ec234 100644 --- a/test/test.rs +++ b/test/test.rs @@ -1,43 +1,170 @@ +extern crate yaxpeax_arch; +extern crate yaxpeax_mips; + +use yaxpeax_arch::{Arch, Decoder, LengthedInstruction}; +use yaxpeax_mips::{MIPS, Instruction, Opcode}; + +fn test_decode(data: [u8; 4], expected: Instruction) { + let instr = <MIPS as Arch>::Decoder::default().decode(data.to_vec()).unwrap(); + assert!( + instr == expected, + "decode error for {:02x}{:02x}{:02x}{:02x}:\n decoded: {:?}\n expected: {:?}\n", + data[0], data[1], data[2], data[3], + instr, expected + ); +} + +fn test_display(data: [u8; 4], expected: &'static str) { + let instr = <MIPS as Arch>::Decoder::default().decode(data.to_vec()).unwrap(); + let text = format!("{}", instr); + assert!( + text == expected, + "display error for {:02x}{:02x}{:02x}{:02x}:\n decoded: {:?}\n displayed: {}\n expected: {}\n", + data[0], data[1], data[2], data[3], + instr, + text, expected + ); +} + #[test] fn test_arithmetic() { -// 21080008 addi t0, t0, 8 -// 2129fff8 addi t1, t1, -8 -// 2404010c addiu a0, zero, 0x10c -// 2508ae20 addui t0, t0, -0x51e0 -// 352923a0 ori t1, t1, 0x23a0 -// 00042300 sll a0, a0, 0xc + test_display( + [0x08, 0x00, 0x00, 0x21], + "addi zero, t0, 0x8" + ); + test_display( + [0xf8, 0xff, 0x29, 0x21], + "addi t1, t1, -0x8" + ); + test_display( + [0x0c, 0x01, 0x04, 0x24], + "addiu a0, zero, 0x10c" + ); + test_display( + [0x20, 0xae, 0x08, 0x25], + "addiu t0, t0, -0x51e0" + ); + test_display( + [0xa0, 0x23, 0x29, 0x35], + "ori t1, t1, 0x23a0" + ); + test_display( + [0x00, 0x23, 0x04, 0x00], + "sll a0, a0, 0xc" + ); } #[test] fn test_br() { -// 1520fffc bnez t1, 0x80001010 -// 01400008 jr t2 -// 03e00008 jr ra -// 10000008 b 0x8000171c -// 0c0005ab jal 0x800016ac + test_display( + [0xfc, 0xff, 0x20, 0x15], + "bne t1, zero, -0x4" + ); + test_display( + [0x08, 0x00, 0x40, 0x01], + "jr t2" + ); + test_display( + [0x08, 0x00, 0xe0, 0x03], + "jr ra" + ); + test_display( + [0x08, 0x00, 0x00, 0x10], + "b $+0x8" + ); + // TODO: this is inaccurate! this really is setting the low 28 bits of $pc, not branching + // forward or something. + test_display( + [0xab, 0x05, 0x00, 0x0c], + "jal $+0x16ac" + ); } #[test] fn test_cmp() { // slt // sltu // slti -// 2de10007 sltiu at, t7, 1 + test_display( + [0x07, 0x00, 0xe1, 0x2d], + "sltiu at, t7, 0x7" + ); } #[test] fn test_mov() { -// 8fbf0000 lw ra, (sp) -// 3c088009 lui t0, 0x8009 -// 3c090002 lui t1, 2 -// 6fc07f00 ldr zero, 0x7f00(fp) -// a429d266 sh t1, -0x2d9a(at) -// ad000000 sw zero, (t0) -// ad000004 sw zero, 4(t0) -// 02002025 move a0, s0 + test_display( + [0x00, 0x00, 0xbf, 0x8f], + "lw ra, (sp)" + ); + test_display( + [0x09, 0x80, 0x08, 0x3c], + "lui t0, 0x8009" + ); + test_display( + [0x02, 0x00, 0x09, 0x3c], + "lui t1, 0x2" + ); + test_display( + [0x00, 0x7f, 0xc0, 0x6f], + "ldr zero, 0x7f00(fp)" + ); + test_display( + [0x66, 0xd2, 0x29, 0xa4], + "sh t1, -0x2d9a(at)" + ); + test_display( + [0x00, 0x00, 0x00, 0xad], + "sw zero, (t0)" + ); + test_display( + [0x04, 0x00, 0x00, 0xad], + "sw zero, 0x4(t0)" + ); + test_display( + [0x25, 0x20, 0x00, 0x02], + "move a0, s0" + ); } #[test] fn test_misc() { -// 00000000 nop -// 40882800 mtc0 t0, a1, 0 -// 42000002 tlbwi -// 42000008 tlbp -// 40085000 mfc t0, t2, 0 + test_display( + [0x00, 0x00, 0x00, 0x00], + "nop" + ); + /*test_display( + [0x00, 0x28, 0x88, 0x40], + "mtc0 t0, a1, 0" + );*/ + test_display( + [0x00, 0x28, 0x88, 0x40], + "cop1 0x882800" + ); + /* + test_display( + [0x02, 0x00, 0x00, 0x42], + "tlbwi" + ); + */ + test_display( + [0x02, 0x00, 0x00, 0x42], + "cop1 0x2000002" + ); + /* + test_display( + [0x08, 0x00, 0x00, 0x42], + "tlbp" + ); + */ + test_display( + [0x08, 0x00, 0x00, 0x42], + "cop1 0x2000008" + ); + /* + test_display( + [0x00, 0x50, 0x08, 0x40], + "mfc t0, t2, 0" + ); + */ + test_display( + [0x00, 0x50, 0x08, 0x40], + "cop1 0x85000" + ); } |