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Fix status flags of MADD* instructions and MSUB* instructions

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hch12907 2018-08-15 22:35:01 +08:00
parent 289f10893d
commit ff836d0fc5
1 changed files with 99 additions and 16 deletions
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115
liborbum/src/Controller/Ee/Vpu/Vu/Interpreter/CVuInterpreter_FLOAT.cpp
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@ -776,8 +776,16 @@ void CVuInterpreter::MADD(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(field);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
// According to the VU manual,
// MAC flag and status flag are set according to the final result
// and the sticky flags indicate the exceptions raised during multiplication
const float multiplied = to_ps2_float(a * b, flags);
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -802,8 +810,13 @@ void CVuInterpreter::MADDi(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -828,8 +841,13 @@ void CVuInterpreter::MADDq(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -856,8 +874,13 @@ void CVuInterpreter::MADDbc(VuUnit_Base* unit, const VuInstruction inst, const i
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(bc);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -906,8 +929,13 @@ void CVuInterpreter::MADDA(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(field);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -932,8 +960,13 @@ void CVuInterpreter::MADDAi(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -958,8 +991,13 @@ void CVuInterpreter::MADDAq(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -986,8 +1024,13 @@ void CVuInterpreter::MADDAbc(VuUnit_Base* unit, const VuInstruction inst, const
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(bc);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c + a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c + multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1036,8 +1079,13 @@ void CVuInterpreter::MSUB(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(field);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1062,8 +1110,13 @@ void CVuInterpreter::MSUBi(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1088,8 +1141,13 @@ void CVuInterpreter::MSUBq(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1116,8 +1174,13 @@ void CVuInterpreter::MSUBbc(VuUnit_Base* unit, const VuInstruction inst, const i
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(bc);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1166,8 +1229,13 @@ void CVuInterpreter::MSUBA(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(field);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1192,8 +1260,13 @@ void CVuInterpreter::MSUBAi(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1218,8 +1291,13 @@ void CVuInterpreter::MSUBAq(VuUnit_Base* unit, const VuInstruction inst)
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float();
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else
@ -1246,8 +1324,13 @@ void CVuInterpreter::MSUBAbc(VuUnit_Base* unit, const VuInstruction inst, const
const float a = reg_source_1.read_float(field);
const float b = reg_source_2.read_float(bc);
const float c = reg_source_3.read_float(field);
const float result = to_ps2_float(c - a * b, flags);
const float multiplied = to_ps2_float(a * b, flags); // See MADD for details
unit->mac.update_vector_field(field, flags);
const float result = to_ps2_float(c - multiplied, flags);
unit->mac.update_vector_field(field, flags);
reg_dest.write_float(field, result);
}
else