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A64: Implement MLA (by element)

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This commit is contained in:
MerryMage 2018-04-18 21:39:03 +01:00
parent 7f47402609
commit a86d4093cd
4 changed files with 49 additions and 4 deletions
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1
src/CMakeLists.txt
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@ -115,6 +115,7 @@ add_library(dynarmic
frontend/A64/translate/impl/simd_three_different.cpp
frontend/A64/translate/impl/simd_three_same.cpp
frontend/A64/translate/impl/simd_two_register_misc.cpp
frontend/A64/translate/impl/simd_vector_x_indexed_element.cpp
frontend/A64/translate/impl/sys_dc.cpp
frontend/A64/translate/impl/system.cpp
frontend/A64/translate/translate.cpp

4
src/frontend/A64/decoder/a64.inc
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@ -818,7 +818,7 @@ INST(USHLL, "USHLL, USHLL2", "0Q101
//INST(UCVTF_fix_2, "UCVTF (vector, fixed-point)", "0Q1011110IIIIiii111001nnnnnddddd")
//INST(FCVTZU_fix_2, "FCVTZU (vector, fixed-point)", "0Q1011110IIIIiii111111nnnnnddddd")
// Data Processing - FP and SIMD - SIMD x indexed element
// Data Processing - FP and SIMD - SIMD vector x indexed element
//INST(SMLAL_elt, "SMLAL, SMLAL2 (by element)", "0Q001111zzLMmmmm0010H0nnnnnddddd")
//INST(SQDMLAL_elt_2, "SQDMLAL, SQDMLAL2 (by element)", "0Q001111zzLMmmmm0011H0nnnnnddddd")
//INST(SMLSL_elt, "SMLSL, SMLSL2 (by element)", "0Q001111zzLMmmmm0110H0nnnnnddddd")
@ -839,7 +839,7 @@ INST(USHLL, "USHLL, USHLL2", "0Q101
//INST(FMLAL_elt_2, "FMLAL, FMLAL2 (by element)", "0Q1011111zLMmmmm1000H0nnnnnddddd")
//INST(FMLSL_elt_1, "FMLSL, FMLSL2 (by element)", "0Q0011111zLMmmmm0100H0nnnnnddddd")
//INST(FMLSL_elt_2, "FMLSL, FMLSL2 (by element)", "0Q1011111zLMmmmm1100H0nnnnnddddd")
//INST(MLA_elt, "MLA (by element)", "0Q101111zzLMmmmm0000H0nnnnnddddd")
INST(MLA_elt, "MLA (by element)", "0Q101111zzLMmmmm0000H0nnnnnddddd")
//INST(UMLAL_elt, "UMLAL, UMLAL2 (by element)", "0Q101111zzLMmmmm0010H0nnnnnddddd")
//INST(MLS_elt, "MLS (by element)", "0Q101111zzLMmmmm0100H0nnnnnddddd")
//INST(UMLSL_elt, "UMLSL, UMLSL2 (by element)", "0Q101111zzLMmmmm0110H0nnnnnddddd")

4
src/frontend/A64/translate/impl/impl.h
View file

@ -898,7 +898,7 @@ struct TranslatorVisitor final {
bool UCVTF_fix_2(bool Q, Imm<4> immh, Imm<3> immb, Vec Vn, Vec Vd);
bool FCVTZU_fix_2(bool Q, Imm<4> immh, Imm<3> immb, Vec Vn, Vec Vd);
// Data Processing - FP and SIMD - SIMD x indexed element
// Data Processing - FP and SIMD - SIMD vector x indexed element
bool SMLAL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool SMLSL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool MUL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
@ -908,7 +908,7 @@ struct TranslatorVisitor final {
bool FMLAL_elt_2(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMLSL_elt_1(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMLSL_elt_2(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool MLA_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool MLA_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool UMLAL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool MLS_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool UMLSL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);

44
src/frontend/A64/translate/impl/simd_vector_x_indexed_element.cpp Normal file
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@ -0,0 +1,44 @@
/* This file is part of the dynarmic project.
* Copyright (c) 2018 MerryMage
* This software may be used and distributed according to the terms of the GNU
* General Public License version 2 or any later version.
*/
#include "frontend/A64/translate/impl/impl.h"
namespace Dynarmic::A64 {
bool TranslatorVisitor::MLA_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
const size_t idxdsize = H == 1 ? 128 : 64;
size_t index;
Imm<1> Vmhi{0};
switch (size.ZeroExtend()) {
case 0b01:
index = concatenate(H, L, M).ZeroExtend();
break;
case 0b10:
index = concatenate(H, L).ZeroExtend();
Vmhi = M;
break;
default:
return UnallocatedEncoding();
}
const Vec Vm = concatenate(Vmhi, Vmlo).ZeroExtend<Vec>();
const size_t esize = 8 << size.ZeroExtend();
const size_t datasize = Q ? 128 : 64;
const IR::U128 operand1 = V(datasize, Vn);
const IR::U128 operand2 = ir.VectorBroadcast(esize, ir.VectorGetElement(esize, V(idxdsize, Vm), index));
const IR::U128 operand3 = V(datasize, Vd);
const IR::U128 product = ir.VectorMultiply(esize, operand1, operand2);
const IR::U128 result = ir.VectorAdd(esize, operand3, product);
V(datasize, Vd, result);
return true;
}
} // namespace Dynarmic::A64