diff options
Diffstat (limited to 'subx/014indirect_addressing.cc')
| -rw-r--r-- | subx/014indirect_addressing.cc | 76 |
1 files changed, 38 insertions, 38 deletions
diff --git a/subx/014indirect_addressing.cc b/subx/014indirect_addressing.cc index c415c96c..e00cb1d5 100644 --- a/subx/014indirect_addressing.cc +++ b/subx/014indirect_addressing.cc @@ -11,14 +11,14 @@ == 0x2000 # data segment 01 00 00 00 # 1 +run: add EBX to r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x00000011 :(before "End Mod Special-cases(addr)") case 0: // indirect addressing switch (rm) { default: // address in register - trace(90, "run") << "effective address is 0x" << std::hex << Reg[rm].u << " (" << rname(rm) << ")" << end(); + trace(90, "run") << "effective address is 0x" << HEXWORD << Reg[rm].u << " (" << rname(rm) << ")" << end(); addr = Reg[rm].u; break; // End Mod 0 Special-cases(addr) @@ -40,7 +40,7 @@ put_new(Name, "03", "add rm32 to r32 (add)"); == 0x2000 # data segment 01 00 00 00 # 1 +run: add r/m32 to EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x00000011 :(before "End Single-Byte Opcodes") @@ -65,7 +65,7 @@ case 0x03: { // add r/m32 to r32 == 0x2000 # data segment 0a 00 00 00 # 10 +run: subtract EBX from r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x00000009 //: @@ -83,7 +83,7 @@ put_new(Name, "2b", "subtract rm32 from r32 (sub)"); == 0x2000 # data segment 01 00 00 00 # 1 +run: subtract r/m32 from EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x00000009 :(before "End Single-Byte Opcodes") @@ -108,7 +108,7 @@ case 0x2b: { // subtract r/m32 from r32 == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: and EBX with r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x0000000d //: @@ -126,7 +126,7 @@ put_new(Name, "23", "r32 = bitwise AND of r32 with rm32 (and)"); == 0x2000 # data segment ff 00 00 00 # 0xff +run: and r/m32 with EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x0000000d :(before "End Single-Byte Opcodes") @@ -151,7 +151,7 @@ case 0x23: { // and r/m32 with r32 == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: or EBX with r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0xaabbccdd //: @@ -169,7 +169,7 @@ put_new(Name, "0b", "r32 = bitwise OR of r32 with rm32 (or)"); == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: or r/m32 with EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0xaabbccdd :(before "End Single-Byte Opcodes") @@ -194,7 +194,7 @@ case 0x0b: { // or r/m32 with r32 == 0x2000 # data segment 0d 0c bb aa # 0xaabb0c0d +run: xor EBX with r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x0a0bccdd //: @@ -212,7 +212,7 @@ put_new(Name, "33", "r32 = bitwise XOR of r32 with rm32 (xor)"); == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: xor r/m32 with EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0xaabbccdd :(before "End Single-Byte Opcodes") @@ -236,7 +236,7 @@ case 0x33: { // xor r/m32 with r32 == 0x2000 # data segment ff 00 0f 0f # 0x0f0f00ff +run: operate on r/m32 -+run: effective address is 0x2000 (EBX) ++run: effective address is 0x00002000 (EBX) +run: subop: not +run: storing 0xf0f0ff00 @@ -252,7 +252,7 @@ ff 00 0f 0f # 0x0f0f00ff == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: compare EBX with r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: SF=0; ZF=0; OF=0 :(scenario compare_mem_at_r32_with_r32_lesser) @@ -265,7 +265,7 @@ ff 00 0f 0f # 0x0f0f00ff == 0x2000 # data segment 07 0c 0b 0a # 0x0a0b0c0d +run: compare EBX with r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: SF=1; ZF=0; OF=0 :(scenario compare_mem_at_r32_with_r32_equal) @@ -278,7 +278,7 @@ ff 00 0f 0f # 0x0f0f00ff == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: compare EBX with r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: SF=0; ZF=1; OF=0 //: @@ -296,7 +296,7 @@ put_new(Name, "3b", "compare: set SF if r32 < rm32 (cmp)"); == 0x2000 # data segment 07 0c 0b 0a # 0x0a0b0c0d +run: compare r/m32 with EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: SF=0; ZF=0; OF=0 :(before "End Single-Byte Opcodes") @@ -325,7 +325,7 @@ case 0x3b: { // set SF if r32 < r/m32 == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: compare r/m32 with EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: SF=1; ZF=0; OF=0 :(scenario compare_r32_with_mem_at_r32_equal) @@ -338,7 +338,7 @@ case 0x3b: { // set SF if r32 < r/m32 == 0x2000 # data segment 0d 0c 0b 0a # 0x0a0b0c0d +run: compare r/m32 with EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: SF=0; ZF=1; OF=0 //:: copy (mov) @@ -351,7 +351,7 @@ case 0x3b: { // set SF if r32 < r/m32 89 18 # copy EBX to *EAX # ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX) +run: copy EBX to r/m32 -+run: effective address is 0x60 (EAX) ++run: effective address is 0x00000060 (EAX) +run: storing 0x000000af //: @@ -368,7 +368,7 @@ put_new(Name, "8b", "copy rm32 to r32 (mov)"); == 0x2000 # data segment af 00 00 00 # 0xaf +run: copy r/m32 to EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: storing 0x000000af :(before "End Single-Byte Opcodes") @@ -396,7 +396,7 @@ case 0x8b: { // copy r32 to r/m32 08 00 00 00 # 8 +run: inst: 0x00000001 +run: jump to r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: jumping to 0x00000008 +run: inst: 0x00000008 -run: inst: 0x00000003 @@ -422,7 +422,7 @@ case 4: { // jump to r/m32 == 0x2000 # data segment af 00 00 00 # 0xaf +run: push r/m32 -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) +run: decrementing ESP to 0x00000010 +run: pushing value 0x000000af @@ -449,7 +449,7 @@ put_new(Name, "8f", "pop top of stack to rm32 (pop)"); == 0x2000 # data segment 30 00 00 00 # 0x30 +run: pop into r/m32 -+run: effective address is 0x60 (EAX) ++run: effective address is 0x00000060 (EAX) +run: popping value 0x00000030 +run: incrementing ESP to 0x00002004 @@ -479,13 +479,13 @@ case 0x8f: { // pop stack into r/m32 == 0x2000 # data segment 01 00 00 00 # 1 +run: add EBX to r/m32 -+run: effective address is 0x2000 (disp32) ++run: effective address is 0x00002000 (disp32) +run: storing 0x00000011 :(before "End Mod 0 Special-cases(addr)") case 5: // exception: mod 0b00 rm 0b101 => incoming disp32 addr = next32(); - trace(90, "run") << "effective address is 0x" << std::hex << addr << " (disp32)" << end(); + trace(90, "run") << "effective address is 0x" << HEXWORD << addr << " (disp32)" << end(); break; //: @@ -500,8 +500,8 @@ case 5: // exception: mod 0b00 rm 0b101 => incoming disp32 == 0x2000 # data segment 01 00 00 00 # 1 +run: add EBX to r/m32 -+run: effective address is initially 0x1ffe (EAX) -+run: effective address is 0x2000 (after adding disp8) ++run: effective address is initially 0x00001ffe (EAX) ++run: effective address is 0x00002000 (after adding disp8) +run: storing 0x00000011 :(before "End Mod Special-cases(addr)") @@ -509,13 +509,13 @@ case 1: // indirect + disp8 addressing switch (rm) { default: addr = Reg[rm].u; - trace(90, "run") << "effective address is initially 0x" << std::hex << addr << " (" << rname(rm) << ")" << end(); + trace(90, "run") << "effective address is initially 0x" << HEXWORD << addr << " (" << rname(rm) << ")" << end(); break; // End Mod 1 Special-cases(addr) } if (addr > 0) { addr += static_cast<int8_t>(next()); - trace(90, "run") << "effective address is 0x" << std::hex << addr << " (after adding disp8)" << end(); + trace(90, "run") << "effective address is 0x" << HEXWORD << addr << " (after adding disp8)" << end(); } break; @@ -529,8 +529,8 @@ case 1: // indirect + disp8 addressing == 0x2000 # data segment 01 00 00 00 # 1 +run: add EBX to r/m32 -+run: effective address is initially 0x2001 (EAX) -+run: effective address is 0x2000 (after adding disp8) ++run: effective address is initially 0x00002001 (EAX) ++run: effective address is 0x00002000 (after adding disp8) +run: storing 0x00000011 //: @@ -545,8 +545,8 @@ case 1: // indirect + disp8 addressing == 0x2000 # data segment 01 00 00 00 # 1 +run: add EBX to r/m32 -+run: effective address is initially 0x1ffe (EAX) -+run: effective address is 0x2000 (after adding disp32) ++run: effective address is initially 0x00001ffe (EAX) ++run: effective address is 0x00002000 (after adding disp32) +run: storing 0x00000011 :(before "End Mod Special-cases(addr)") @@ -554,13 +554,13 @@ case 2: // indirect + disp32 addressing switch (rm) { default: addr = Reg[rm].u; - trace(90, "run") << "effective address is initially 0x" << std::hex << addr << " (" << rname(rm) << ")" << end(); + trace(90, "run") << "effective address is initially 0x" << HEXWORD << addr << " (" << rname(rm) << ")" << end(); break; // End Mod 2 Special-cases(addr) } if (addr > 0) { addr += next32(); - trace(90, "run") << "effective address is 0x" << std::hex << addr << " (after adding disp32)" << end(); + trace(90, "run") << "effective address is 0x" << HEXWORD << addr << " (after adding disp32)" << end(); } break; @@ -574,8 +574,8 @@ case 2: // indirect + disp32 addressing == 0x2000 # data segment 01 00 00 00 # 1 +run: add EBX to r/m32 -+run: effective address is initially 0x2001 (EAX) -+run: effective address is 0x2000 (after adding disp32) ++run: effective address is initially 0x00002001 (EAX) ++run: effective address is 0x00002000 (after adding disp32) +run: storing 0x00000011 //:: lea @@ -590,7 +590,7 @@ put_new(Name, "8d", "copy address in rm32 into r32 (lea)"); 8d 18 # ModR/M in binary: 00 (indirect mode) 011 (dest EBX) 000 (src EAX) +run: lea into EBX -+run: effective address is 0x2000 (EAX) ++run: effective address is 0x00002000 (EAX) :(before "End Single-Byte Opcodes") case 0x8d: { // lea m32 to r32 |