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adds Vector Integer Divide Instructions

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Eyck-Alexander Jentzsch 2025-02-17 15:07:14 +01:00
parent ab31fd27c9
commit c9b7962cd3
1 changed files with 34 additions and 4 deletions
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38
src/vm/vector_functions.hpp
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@ -184,10 +184,40 @@ std::function<dest_elem_t(src2_elem_t, src1_elem_t)> get_funct(unsigned funct6,
// case 0b011101: // VMNAND
// case 0b011110: // VMNOR
// case 0b011111: // VMXNOR
// case 0b100000: // VDIVU
// case 0b100001: // VDIV
// case 0b100010: // VREMU
// case 0b100011: // VREM
case 0b100000: // VDIVU
return [](src2_elem_t vs2, src1_elem_t vs1) -> dest_elem_t {
if(vs1 == 0)
return -1;
else
return vs2 / vs1;
};
case 0b100001: // VDIV
return [](src2_elem_t vs2, src1_elem_t vs1) -> dest_elem_t {
if(vs1 == 0)
return -1;
else if(vs2 == std::numeric_limits<std::make_signed_t<src2_elem_t>>::min() &&
static_cast<std::make_signed_t<src1_elem_t>>(vs1) == -1)
return vs2;
else
return static_cast<std::make_signed_t<src2_elem_t>>(vs2) / static_cast<std::make_signed_t<src1_elem_t>>(vs1);
};
case 0b100010: // VREMU
return [](src2_elem_t vs2, src1_elem_t vs1) -> dest_elem_t {
if(vs1 == 0)
return vs2;
else
return vs2 % vs1;
};
case 0b100011: // VREM
return [](src2_elem_t vs2, src1_elem_t vs1) -> dest_elem_t {
if(vs1 == 0)
return vs2;
else if(vs2 == std::numeric_limits<std::make_signed_t<src2_elem_t>>::min() &&
static_cast<std::make_signed_t<src1_elem_t>>(vs1) == -1)
return 0;
else
return static_cast<std::make_signed_t<src2_elem_t>>(vs2) % static_cast<std::make_signed_t<src1_elem_t>>(vs1);
};
case 0b100100: // VMULHU
return [](src2_elem_t vs2, src1_elem_t vs1) {
return (static_cast<twice_t<src2_elem_t>>(vs2) * static_cast<twice_t<src2_elem_t>>(vs1)) >> sizeof(dest_elem_t) * 8;