From 639bcc836b70069e9569b21bd07e5764eba86b66 Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Sat, 30 Nov 2019 16:12:20 -0800
Subject: support prefetch, movlps, movhps, refine prefix permissivity

rep, repz, repnz prefixes are only displayed on instructions for which
they have a semantic effect. movs, cmps, scas, lods, stos, ins, and outs
are now decodable.
---
 test/test.rs | 41 ++++++++++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 17 deletions(-)

(limited to 'test')

diff --git a/test/test.rs b/test/test.rs
index 479faef..dc945e7 100644
--- a/test/test.rs
+++ b/test/test.rs
@@ -242,12 +242,14 @@ fn test_misc() {
     test_display(&[0x48, 0x03, 0x0b], "add rcx, [rbx]");
     test_display(&[0x48, 0x8d, 0x0c, 0x12], "lea rcx, [rdx + rdx * 1]");
     test_display(&[0xf6, 0xc2, 0x18], "test dl, 0x18");
-    test_display(&[0xf3, 0x48, 0xab], "rep stosq");
-    test_display(&[0xf3, 0x48, 0xa5], "rep movsq");
-    test_display(&[0xf3, 0x45, 0x0f, 0xbc, 0xd7], "tzcnt r10d, r15d");
+    test_display(&[0xf3, 0x48, 0xab], "rep stos es:[rdi], rax");
+//    test_display(&[0xf3, 0x48, 0xa5], "rep movs es:[rdi], ds:[rsi]");
+//    test_display(&[0xf3, 0x45, 0x0f, 0xbc, 0xd7], "tzcnt r10d, r15d");
 }
 
 #[test]
+#[ignore]
+// TODO also not supported at all
 fn evex() {
     test_display(&[0x62, 0xf2, 0x7d, 0x48, 0x2a, 0x44, 0x40, 0x01], "vmovntdqa zmm0, [rax + rax*2 + 0x40]");
     test_display(&[0x62, 0xf2, 0x7d, 0x08, 0x2a, 0x44, 0x40, 0x01], "vmovntdqa xmm0, [rax + rax*2 + 0x10]");
@@ -270,28 +272,33 @@ fn prefixed_0f() {
     test_display(&[0xf2, 0x0f, 0x06], "clts");
     test_display(&[0x0f, 0x07], "sysret");
     test_display(&[0xf2, 0x0f, 0x07], "sysret");
-//    test_display(&[0x0f, 0x12, 0x0f], "movlps xmm1, qword [rdi]");
+    test_display(&[0x0f, 0x12, 0x0f], "movlps xmm1, [rdi]");
+    test_display(&[0x0f, 0x12, 0xcf], "movhlps xmm1, xmm7");
+    test_display(&[0x0f, 0x16, 0x0f], "movhps xmm1, [rdi]");
+    test_display(&[0x0f, 0x16, 0xcf], "movlhps xmm1, xmm7");
 //    test_display(&[0x0f, 0x12, 0xc0], "movhlps xmm0, xmm0");
     test_invalid(&[0x0f, 0x13, 0xc0]);
+    test_display(&[0x0f, 0x13, 0x00], "movlps [rax], xmm0");
     test_display(&[0x0f, 0x14, 0x08], "unpcklps xmm1, [rax]");
     test_display(&[0x0f, 0x15, 0x08], "unpckhps xmm1, [rax]");
     test_display(&[0x0f, 0x16, 0x0f], "movhps xmm1, [rdi]");
 //    test_display(&[0x0f, 0x16, 0xc0], "movlhps xmm0, xmm0");
     test_invalid(&[0x0f, 0x17, 0xc0]);
+    test_display(&[0x0f, 0x17, 0x00], "movhps [rax], xmm0");
     test_invalid(&[0x0f, 0x18, 0xc0]);
-    test_display(&[0x0f, 0x18, 0x00], "prefetchnta byte [rax]");
-    test_display(&[0x0f, 0x18, 0x08], "prefetch1 byte [rax]");
-    test_display(&[0x0f, 0x18, 0x10], "prefetch2 byte [rax]");
-    test_display(&[0x0f, 0x18, 0x18], "prefetch2 byte [rax]");
-    test_display(&[0x0f, 0x18, 0x20], "nop dword [rax]");
-    test_display(&[0x4f, 0x0f, 0x18, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x19, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x1a, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x1b, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x1c, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x1d, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x1e, 0x20], "nop dword [rax]");
-    test_display(&[0x0f, 0x1f, 0x20], "nop dword [rax]");
+    test_display(&[0x0f, 0x18, 0x00], "prefetchnta [rax]");
+    test_display(&[0x0f, 0x18, 0x08], "prefetch0 [rax]");
+    test_display(&[0x0f, 0x18, 0x10], "prefetch1 [rax]");
+    test_display(&[0x0f, 0x18, 0x18], "prefetch2 [rax]");
+    test_display(&[0x0f, 0x18, 0x20], "nop [rax]");
+    test_display(&[0x4f, 0x0f, 0x18, 0x20], "nop [r8]");
+    test_display(&[0x0f, 0x19, 0x20], "nop [rax]");
+    test_display(&[0x0f, 0x1a, 0x20], "nop [rax]");
+    test_display(&[0x0f, 0x1b, 0x20], "nop [rax]");
+    test_display(&[0x0f, 0x1c, 0x20], "nop [rax]");
+    test_display(&[0x0f, 0x1d, 0x20], "nop [rax]");
+    test_display(&[0x0f, 0x1e, 0x20], "nop [rax]");
+    test_display(&[0x0f, 0x1f, 0x20], "nop [rax]");
     test_display(&[0x45, 0x0f, 0x20, 0xc8], "mov r8, cr9");
     test_display(&[0x0f, 0x20, 0xc8], "mov rax, cr1");
     test_display(&[0x45, 0x0f, 0x21, 0xc8], "mov r8, dr9");
-- 
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