zdoom/gzdoom
0
0
Fork 0
mirror of https://github.com/ZDoom/gzdoom.git synced 2024-11-29 23:33:00 +00:00
Code Issues Projects Releases Packages Wiki Activity

- added exact floating point comparison opcodes

Browse source
This commit is contained in:
Jonathan Russell 2018-08-14 18:32:17 +01:00
parent 167693f102
commit 740415246e
1 changed files with 112 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

124
src/scripting/vm/jit.cpp
View file

@ -226,8 +226,6 @@ template <typename Func>
void emitComparisonOpcode(asmjit::X86Compiler& cc, const TArray<asmjit::Label>& labels, const VMOP* pc, int i, Func compFunc) {
using namespace asmjit;
Label elseLabel = cc.newLabel();
auto tmp0 = cc.newInt32();
auto tmp1 = cc.newInt32();
@ -237,12 +235,9 @@ void emitComparisonOpcode(asmjit::X86Compiler& cc, const TArray<asmjit::Label>&
cc.and_(tmp1, CMP_CHECK);
cc.cmp(tmp0, tmp1);
cc.jne(elseLabel);
cc.jne(labels[i + 2]);
cc.jmp(labels[i + 2 + JMPOFS(pc + 1)]);
cc.bind(elseLabel);
cc.jmp(labels[i + 2]);
}
JitFuncPtr JitCompile(VMScriptFunction *sfunc)
@ -979,8 +974,8 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[B])));
cc.cmp(x86::ptr(tmp), regD[C]);
cc.setl(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
@ -1011,8 +1006,8 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[B])));
cc.cmp(x86::ptr(tmp), regD[C]);
cc.setle(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
@ -1043,8 +1038,8 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[B])));
cc.cmp(x86::ptr(tmp), regD[C]);
cc.setb(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
@ -1162,13 +1157,118 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
case OP_ATAN2: // fA = atan2(fB,fC), result is in degrees
case OP_FLOP: // fA = f(fB), where function is selected by C
case OP_EQF_R: // if ((fB == fkC) != (A & 1)) then pc++
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newInt32();
cc.ucomisd(regF[B], regF[C]);
cc.sete(result);
cc.setnp(tmp);
cc.and_(result, tmp);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_EQF_K:
{
auto compLambda = [&](X86Gp& result) {
auto konstTmp = cc.newIntPtr();
auto parityTmp = cc.newInt32();
cc.mov(konstTmp, reinterpret_cast<ptrdiff_t>(&(konstf[C])));
cc.ucomisd(regF[B], x86::qword_ptr(konstTmp));
cc.sete(result);
cc.setnp(parityTmp);
cc.and_(result, parityTmp);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LTF_RR: // if ((fkB < fkC) != (A & 1)) then pc++
{
auto compLambda = [&](X86Gp& result) {
cc.ucomisd(regF[C], regF[B]);
cc.seta(result);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LTF_RK:
{
auto compLambda = [&](X86Gp& result) {
auto constTmp = cc.newIntPtr();
auto xmmTmp = cc.newXmmSd();
cc.mov(constTmp, reinterpret_cast<ptrdiff_t>(&(konstf[C])));
cc.movsd(xmmTmp, x86::qword_ptr(constTmp));
cc.ucomisd(xmmTmp, regF[B]);
cc.seta(result);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LTF_KR:
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstf[B])));
cc.ucomisd(regF[C], x86::qword_ptr(tmp));
cc.seta(result);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LEF_RR: // if ((fkb <= fkC) != (A & 1)) then pc++
{
auto compLambda = [&](X86Gp& result) {
cc.ucomisd(regF[C], regF[B]);
cc.setae(result);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LEF_RK:
{
auto compLambda = [&](X86Gp& result) {
auto constTmp = cc.newIntPtr();
auto xmmTmp = cc.newXmmSd();
cc.mov(constTmp, reinterpret_cast<ptrdiff_t>(&(konstf[C])));
cc.movsd(xmmTmp, x86::qword_ptr(constTmp));
cc.ucomisd(xmmTmp, regF[B]);
cc.setae(result);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LEF_KR:
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstf[B])));
cc.ucomisd(regF[C], x86::qword_ptr(tmp));
cc.setae(result);
cc.and_(result, 1);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
break;
// Vector math. (2D)