fix inconsistently-poreted memory access size of vcvt{,t}{sd,si}

1 files changed, 75 insertions, 11 deletions

diff --git a/src/long_mode/vex.rs b/src/long_mode/vex.rs
index e83c735..2ee9749 100644
--- a/src/long_mode/vex.rs
+++ b/src/long_mode/vex.rs
@@ -80,6 +80,8 @@ enum VEXOperandCode {
     G_V_E_xmm,
     G_V_E_xmm_imm8,
     G_V_E_xmm_xmm4,
+    G_V_Ed_xmm,
+    G_V_Eq_xmm,
     G_V_E_ymm,
     G_V_E_ymm_imm8,
     G_V_E_ymm_ymm4,
@@ -95,7 +97,9 @@ enum VEXOperandCode {
     G_V_E,
     G_E_Ib,
     VCVT_Gd_Ed_xmm,
+    VCVT_Gd_Eq_xmm,
     VCVT_Gq_Eq_xmm,
+    VCVT_Gq_Ed_xmm,
     BMI1_F3,
     MXCSR,
 }
@@ -634,6 +638,42 @@ fn read_vex_operands<
             instruction.operand_count = 2;
             Ok(())
         }
+        VEXOperandCode::VCVT_Gd_Eq_xmm => {
+            if instruction.regs[3].num != 0 {
+                return Err(DecodeError::InvalidOperand);
+            }
+            let modrm = read_modrm(words)?;
+            instruction.regs[0] =
+                RegSpec::from_parts((modrm >> 3) & 7, instruction.prefixes.vex_unchecked().r(), RegisterBank::D);
+            let mem_oper = read_E(words, instruction, modrm, RegisterBank::D, sink)?;
+            if let OperandSpec::RegMMM = mem_oper {
+                instruction.regs[1].bank = RegisterBank::X;
+            } else {
+                instruction.mem_size = 8;
+            }
+            instruction.operands[0] = OperandSpec::RegRRR;
+            instruction.operands[1] = mem_oper;
+            instruction.operand_count = 2;
+            Ok(())
+        }
+        VEXOperandCode::VCVT_Gq_Ed_xmm => {
+            if instruction.regs[3].num != 0 {
+                return Err(DecodeError::InvalidOperand);
+            }
+            let modrm = read_modrm(words)?;
+            instruction.regs[0] =
+                RegSpec::from_parts((modrm >> 3) & 7, instruction.prefixes.vex_unchecked().r(), RegisterBank::Q);
+            let mem_oper = read_E(words, instruction, modrm, RegisterBank::D, sink)?;
+            if let OperandSpec::RegMMM = mem_oper {
+                instruction.regs[1].bank = RegisterBank::X;
+            } else {
+                instruction.mem_size = 4;
+            }
+            instruction.operands[0] = OperandSpec::RegRRR;
+            instruction.operands[1] = mem_oper;
+            instruction.operand_count = 2;
+            Ok(())
+        }
         VEXOperandCode::VCVT_Gq_Eq_xmm => {
             if instruction.regs[3].num != 0 {
                 return Err(DecodeError::InvalidOperand);
@@ -645,11 +685,7 @@ fn read_vex_operands<
             if let OperandSpec::RegMMM = mem_oper {
                 instruction.regs[1].bank = RegisterBank::X;
             } else {
-                if instruction.opcode == Opcode::VCVTSS2SI {
-                    instruction.mem_size = 4;
-                } else {
-                    instruction.mem_size = 8;
-                }
+                instruction.mem_size = 8;
             }
             instruction.operands[0] = OperandSpec::RegRRR;
             instruction.operands[1] = mem_oper;
@@ -1202,6 +1238,34 @@ fn read_vex_operands<
             instruction.operand_count = 3;
             Ok(())
         }
+        VEXOperandCode::G_V_Ed_xmm => {
+            let modrm = read_modrm(words)?;
+            instruction.regs[0] =
+                RegSpec::from_parts((modrm >> 3) & 7, instruction.prefixes.vex_unchecked().r(), RegisterBank::X);
+            let mem_oper = read_E_xmm(words, instruction, modrm, sink)?;
+            instruction.operands[0] = OperandSpec::RegRRR;
+            instruction.operands[1] = OperandSpec::RegVex;
+            instruction.operands[2] = mem_oper;
+            if mem_oper != OperandSpec::RegMMM {
+                instruction.mem_size = 4;
+            }
+            instruction.operand_count = 3;
+            Ok(())
+        }
+        VEXOperandCode::G_V_Eq_xmm => {
+            let modrm = read_modrm(words)?;
+            instruction.regs[0] =
+                RegSpec::from_parts((modrm >> 3) & 7, instruction.prefixes.vex_unchecked().r(), RegisterBank::X);
+            let mem_oper = read_E_xmm(words, instruction, modrm, sink)?;
+            instruction.operands[0] = OperandSpec::RegRRR;
+            instruction.operands[1] = OperandSpec::RegVex;
+            instruction.operands[2] = mem_oper;
+            if mem_oper != OperandSpec::RegMMM {
+                instruction.mem_size = 8;
+            }
+            instruction.operand_count = 3;
+            Ok(())
+        }
         VEXOperandCode::G_V_xmm_Ed => {
             let modrm = read_modrm(words)?;
             instruction.regs[0] =
@@ -1912,17 +1976,17 @@ fn read_vex_instruction<
                         0x2c => (Opcode::VCVTTSD2SI, if instruction.prefixes.vex_unchecked().w() {
                             VEXOperandCode::VCVT_Gq_Eq_xmm // 64-bit
                         } else {
-                            VEXOperandCode::VCVT_Gd_Ed_xmm // 32-bit
+                            VEXOperandCode::VCVT_Gd_Eq_xmm // 32-bit
                         }),
                         0x2d => (Opcode::VCVTSD2SI, if instruction.prefixes.vex_unchecked().w() {
                             VEXOperandCode::VCVT_Gq_Eq_xmm // 64-bit
                         } else {
-                            VEXOperandCode::VCVT_Gd_Ed_xmm // 32-bit
+                            VEXOperandCode::VCVT_Gd_Eq_xmm // 32-bit
                         }),
                         0x51 => (Opcode::VSQRTSD, VEXOperandCode::G_V_E_xmm),
                         0x58 => (Opcode::VADDSD, VEXOperandCode::G_V_E_xmm),
                         0x59 => (Opcode::VMULSD, VEXOperandCode::G_V_E_xmm),
-                        0x5a => (Opcode::VCVTSD2SS, VEXOperandCode::G_V_E_xmm),
+                        0x5a => (Opcode::VCVTSD2SS, VEXOperandCode::G_V_Eq_xmm),
                         0x5c => (Opcode::VSUBSD, VEXOperandCode::G_V_E_xmm),
                         0x5d => (Opcode::VMINSD, VEXOperandCode::G_V_E_xmm),
                         0x5e => (Opcode::VDIVSD, VEXOperandCode::G_V_E_xmm),
@@ -1959,12 +2023,12 @@ fn read_vex_instruction<
                             VEXOperandCode::G_V_xmm_Ed
                         }),
                         0x2c => (Opcode::VCVTTSS2SI, if instruction.prefixes.vex_unchecked().w() {
-                            VEXOperandCode::VCVT_Gq_Eq_xmm
+                            VEXOperandCode::VCVT_Gq_Ed_xmm
                         } else {
                             VEXOperandCode::VCVT_Gd_Ed_xmm
                         }),
                         0x2d => (Opcode::VCVTSS2SI, if instruction.prefixes.vex_unchecked().w() {
-                            VEXOperandCode::VCVT_Gq_Eq_xmm
+                            VEXOperandCode::VCVT_Gq_Ed_xmm
                         } else {
                             VEXOperandCode::VCVT_Gd_Ed_xmm
                         }),
@@ -1973,7 +2037,7 @@ fn read_vex_instruction<
                         0x53 => (Opcode::VRCPSS, VEXOperandCode::G_V_E_xmm),
                         0x58 => (Opcode::VADDSS, VEXOperandCode::G_V_E_xmm),
                         0x59 => (Opcode::VMULSS, VEXOperandCode::G_V_E_xmm),
-                        0x5a => (Opcode::VCVTSS2SD, VEXOperandCode::G_V_E_xmm),
+                        0x5a => (Opcode::VCVTSS2SD, VEXOperandCode::G_V_Ed_xmm),
                         0x5b => (Opcode::VCVTTPS2DQ, if L { VEXOperandCode::G_ymm_E_ymm } else { VEXOperandCode::G_xmm_E_xmm }),
                         0x5c => (Opcode::VSUBSS, VEXOperandCode::G_V_E_xmm),
                         0x5d => (Opcode::VMINSS, VEXOperandCode::G_V_E_xmm),