5485 - promote SubX to top-level

1 files changed, 407 insertions, 0 deletions

diff --git a/018jump_disp32.cc b/018jump_disp32.cc
new file mode 100644
index 00000000..86e06e9f
--- /dev/null
+++ b/018jump_disp32.cc
@@ -0,0 +1,407 @@
+//: jump to 32-bit offset
+
+//:: jump
+
+:(before "End Initialize Op Names")
+put_new(Name, "e9", "jump disp32 bytes away (jmp)");
+
+:(code)
+void test_jump_disp32() {
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  e9                   05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: e9\n"
+      "run: jump 5\n"
+      "run: 0x0000000b opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000006 opcode: 05");
+}
+
+:(before "End Single-Byte Opcodes")
+case 0xe9: {  // jump disp32
+  const int32_t offset = next32();
+  trace(Callstack_depth+1, "run") << "jump " << offset << end();
+  EIP += offset;
+  break;
+}
+
+//:: jump if equal/zero
+
+:(before "End Initialize Op Names")
+put_new(Name_0f, "84", "jump disp32 bytes away if equal, if ZF is set (jcc/jz/je)");
+
+:(code)
+void test_je_disp32_success() {
+  ZF = true;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 84                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(before "End Two-Byte Opcodes Starting With 0f")
+case 0x84: {  // jump disp32 if ZF
+  const int32_t offset = next32();
+  if (ZF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+
+:(code)
+void test_je_disp32_fail() {
+  ZF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 84                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: 0x00000007 opcode: 05\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: jump 5");
+}
+
+//:: jump if not equal/not zero
+
+:(before "End Initialize Op Names")
+put_new(Name_0f, "85", "jump disp32 bytes away if not equal, if ZF is not set (jcc/jnz/jne)");
+
+:(code)
+void test_jne_disp32_success() {
+  ZF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 85                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(before "End Two-Byte Opcodes Starting With 0f")
+case 0x85: {  // jump disp32 unless ZF
+  const int32_t offset = next32();
+  if (!ZF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+
+:(code)
+void test_jne_disp32_fail() {
+  ZF = true;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 85                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: 0x00000007 opcode: 05\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: jump 5");
+}
+
+//:: jump if greater
+
+:(before "End Initialize Op Names")
+put_new(Name_0f, "8f", "jump disp32 bytes away if greater (signed), if ZF is unset and SF == OF (jcc/jg/jnle)");
+put_new(Name_0f, "87", "jump disp32 bytes away if greater (unsigned), if ZF is unset and CF is unset (jcc/ja/jnbe)");
+
+:(code)
+void test_jg_disp32_success() {
+  ZF = false;
+  SF = false;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8f                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(before "End Two-Byte Opcodes Starting With 0f")
+case 0x8f: {  // jump disp32 if !SF and !ZF
+  const int32_t offset = next32();
+  if (!ZF && SF == OF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+case 0x87: {  // jump disp32 if !CF and !ZF
+  const int32_t offset = next();
+  if (!CF && !ZF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+
+:(code)
+void test_jg_disp32_fail() {
+  ZF = false;
+  SF = true;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8f                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: 0x00000007 opcode: 05\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: jump 5");
+}
+
+//:: jump if greater or equal
+
+:(before "End Initialize Op Names")
+put_new(Name_0f, "8d", "jump disp32 bytes away if greater or equal (signed), if SF == OF (jcc/jge/jnl)");
+put_new(Name_0f, "83", "jump disp32 bytes away if greater or equal (unsigned), if CF is unset (jcc/jae/jnb)");
+
+:(code)
+void test_jge_disp32_success() {
+  SF = false;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8d                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(before "End Two-Byte Opcodes Starting With 0f")
+case 0x8d: {  // jump disp32 if !SF
+  const int32_t offset = next32();
+  if (SF == OF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+case 0x83: {  // jump disp32 if !CF
+  const int32_t offset = next32();
+  if (!CF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+
+:(code)
+void test_jge_disp32_fail() {
+  SF = true;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8d                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: 0x00000007 opcode: 05\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: jump 5");
+}
+
+//:: jump if lesser
+
+:(before "End Initialize Op Names")
+put_new(Name_0f, "8c", "jump disp32 bytes away if lesser (signed), if SF != OF (jcc/jl/jnge)");
+put_new(Name_0f, "82", "jump disp32 bytes away if lesser (unsigned), if CF is set (jcc/jb/jnae)");
+
+:(code)
+void test_jl_disp32_success() {
+  ZF = false;
+  SF = true;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8c                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(before "End Two-Byte Opcodes Starting With 0f")
+case 0x8c: {  // jump disp32 if SF and !ZF
+  const int32_t offset = next32();
+  if (SF != OF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+case 0x72: {  // jump disp32 if CF
+  const int32_t offset = next32();
+  if (CF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+
+:(code)
+void test_jl_disp32_fail() {
+  ZF = false;
+  SF = false;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8c                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: 0x00000007 opcode: 05\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: jump 5");
+}
+
+//:: jump if lesser or equal
+
+:(before "End Initialize Op Names")
+put_new(Name_0f, "8e", "jump disp32 bytes away if lesser or equal (signed), if ZF is set or SF != OF (jcc/jle/jng)");
+put_new(Name_0f, "86", "jump disp8 bytes away if lesser or equal (unsigned), if ZF is set or CF is set (jcc/jbe/jna)");
+
+:(code)
+void test_jle_disp32_equal() {
+  ZF = true;
+  SF = false;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8e                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(code)
+void test_jle_disp32_lesser() {
+  ZF = false;
+  SF = true;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8e                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: jump 5\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: 0x00000007 opcode: 05");
+}
+
+:(before "End Two-Byte Opcodes Starting With 0f")
+case 0x8e: {  // jump disp32 if SF or ZF
+  const int32_t offset = next32();
+  if (ZF || SF != OF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+case 0x86: {  // jump disp32 if ZF or CF
+  const int32_t offset = next32();
+  if (ZF || CF) {
+    trace(Callstack_depth+1, "run") << "jump " << offset << end();
+    EIP += offset;
+  }
+  break;
+}
+
+:(code)
+void test_jle_disp32_greater() {
+  ZF = false;
+  SF = false;
+  OF = false;
+  run(
+      "== code 0x1\n"
+      // op     ModR/M  SIB   displacement  immediate
+      "  0f 8e                05 00 00 00               \n"  // skip 1 instruction
+      "  05                                 00 00 00 01 \n"
+      "  05                                 00 00 00 02 \n"
+  );
+  CHECK_TRACE_CONTENTS(
+      "run: 0x00000001 opcode: 0f\n"
+      "run: 0x00000007 opcode: 05\n"
+      "run: 0x0000000c opcode: 05\n"
+  );
+  CHECK_TRACE_DOESNT_CONTAIN("run: jump 5");
+}