diff options
Diffstat (limited to 'subx/014jump_relative.cc')
| -rw-r--r-- | subx/014jump_relative.cc | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/subx/014jump_relative.cc b/subx/014jump_relative.cc deleted file mode 100644 index c9cdcd1b..00000000 --- a/subx/014jump_relative.cc +++ /dev/null @@ -1,252 +0,0 @@ -//: jump to 8-bit offset - -//:: jump - -:(scenario jump_rel8) -# op ModRM SIB displacement immediate - eb 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0xeb: { // jump rel8 - int8_t offset = static_cast<int>(next()); - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - break; -} - -//:: jump if equal/zero - -:(scenario je_rel8_success) -% ZF = true; -# op ModRM SIB displacement immediate - 74 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0x74: { // jump rel8 if ZF - int8_t offset = static_cast<int>(next()); - if (ZF) { - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - } - break; -} - -:(scenario je_rel8_fail) -% ZF = false; -# op ModRM SIB displacement immediate - 74 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: inst: 0x00000003 -+run: inst: 0x00000008 --run: jump 5 - -//:: jump if not equal/not zero - -:(scenario jne_rel8_success) -% ZF = false; -# op ModRM SIB displacement immediate - 75 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0x75: { // jump rel8 unless ZF - int8_t offset = static_cast<int>(next()); - if (!ZF) { - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - } - break; -} - -:(scenario jne_rel8_fail) -% ZF = true; -# op ModRM SIB displacement immediate - 75 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: inst: 0x00000003 -+run: inst: 0x00000008 --run: jump 5 - -//:: jump if greater - -:(scenario jg_rel8_success) -% ZF = false; -% SF = false; -% OF = false; -# op ModRM SIB displacement immediate - 7f 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0x7f: { // jump rel8 if !SF and !ZF - int8_t offset = static_cast<int>(next()); - if (!ZF && SF == OF) { - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - } - break; -} - -:(scenario jg_rel8_fail) -% ZF = false; -% SF = true; -% OF = false; -# op ModRM SIB displacement immediate - 7f 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: inst: 0x00000003 -+run: inst: 0x00000008 --run: jump 5 - -//:: jump if greater or equal - -:(scenario jge_rel8_success) -% SF = false; -% OF = false; -# op ModRM SIB displacement immediate - 7d 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0x7d: { // jump rel8 if !SF - int8_t offset = static_cast<int>(next()); - if (SF == OF) { - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - } - break; -} - -:(scenario jge_rel8_fail) -% SF = true; -% OF = false; -# op ModRM SIB displacement immediate - 7d 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: inst: 0x00000003 -+run: inst: 0x00000008 --run: jump 5 - -//:: jump if lesser - -:(scenario jl_rel8_success) -% ZF = false; -% SF = true; -% OF = false; -# op ModRM SIB displacement immediate - 7c 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0x7c: { // jump rel8 if SF and !ZF - int8_t offset = static_cast<int>(next()); - if (SF != OF) { - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - } - break; -} - -:(scenario jl_rel8_fail) -% ZF = false; -% SF = false; -% OF = false; -# op ModRM SIB displacement immediate - 7c 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: inst: 0x00000003 -+run: inst: 0x00000008 --run: jump 5 - -//:: jump if lesser or equal - -:(scenario jle_rel8_equal) -% ZF = true; -% SF = false; -% OF = false; -# op ModRM SIB displacement immediate - 7e 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(scenario jle_rel8_lesser) -% ZF = false; -% SF = true; -% OF = false; -# op ModRM SIB displacement immediate - 7e 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: jump 5 -+run: inst: 0x00000008 --run: inst: 0x00000003 - -:(before "End Single-Byte Opcodes") -case 0x7e: { // jump rel8 if SF or ZF - int8_t offset = static_cast<int>(next()); - if (ZF || SF != OF) { - trace(2, "run") << "jump " << NUM(offset) << end(); - EIP += offset; - } - break; -} - -:(scenario jle_rel8_greater) -% ZF = false; -% SF = false; -% OF = false; -# op ModRM SIB displacement immediate - 7e 05 # skip 1 instruction - 05 00 00 00 01 - 05 00 00 00 02 -+run: inst: 0x00000001 -+run: inst: 0x00000003 -+run: inst: 0x00000008 --run: jump 5 |