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| author | Kartik Agaram <vc@akkartik.com> | 2018-10-24 15:52:41 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-10-24 15:52:41 -0700 |
| commit | 4524da2bb6feaaed7af5b1eec2b600f2ec57b1be (patch) | |
| tree | 2afea96d215bb1e1e09387d4f175f23a240f834d /subx | |
| parent | b6fdd2e4e5d5267b21c90914c09b86b5413d238b (diff) | |
| download | mu-4524da2bb6feaaed7af5b1eec2b600f2ec57b1be.tar.gz | |
4718
Diffstat (limited to 'subx')
| -rw-r--r-- | subx/014indirect_addressing.cc | 10 | ||||
| -rw-r--r-- | subx/031check_operands.cc | 2 |
2 files changed, 6 insertions, 6 deletions
diff --git a/subx/014indirect_addressing.cc b/subx/014indirect_addressing.cc index e00cb1d5..cbd9afbc 100644 --- a/subx/014indirect_addressing.cc +++ b/subx/014indirect_addressing.cc @@ -578,25 +578,25 @@ case 2: // indirect + disp32 addressing +run: effective address is 0x00002000 (after adding disp32) +run: storing 0x00000011 -//:: lea +//:: copy address (lea) :(before "End Initialize Op Names") put_new(Name, "8d", "copy address in rm32 into r32 (lea)"); -:(scenario lea) +:(scenario copy_address) % Reg[EAX].u = 0x2000; == 0x1 # op ModR/M SIB displacement immediate 8d 18 # ModR/M in binary: 00 (indirect mode) 011 (dest EBX) 000 (src EAX) -+run: lea into EBX ++run: copy address into EBX +run: effective address is 0x00002000 (EAX) :(before "End Single-Byte Opcodes") -case 0x8d: { // lea m32 to r32 +case 0x8d: { // copy address of m32 to r32 const uint8_t modrm = next(); const uint8_t arg1 = (modrm>>3)&0x7; - trace(90, "run") << "lea into " << rname(arg1) << end(); + trace(90, "run") << "copy address into " << rname(arg1) << end(); Reg[arg1].u = effective_address_number(modrm); break; } diff --git a/subx/031check_operands.cc b/subx/031check_operands.cc index de78b4b1..f5629a96 100644 --- a/subx/031check_operands.cc +++ b/subx/031check_operands.cc @@ -211,7 +211,7 @@ void init_permitted_operands() { put(Permitted_operands, "8b", 0x01); // swap put(Permitted_operands, "87", 0x01); - // lea + // copy address (lea) put(Permitted_operands, "8d", 0x01); // pop put(Permitted_operands, "8f", 0x01); |