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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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4
src/frontend/A64/translate/impl/impl.h
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@@ -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