//: 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"); }