zdoom/gzdoom
0
0
Fork 0
mirror of https://github.com/ZDoom/gzdoom.git synced 2024-11-22 12:11:25 +00:00
Code Issues Projects Releases Packages Wiki Activity

- implement ATAN2 and FLOP

Browse source
This commit is contained in:
Magnus Norddahl 2018-08-20 01:40:37 +02:00
parent 38fa25d0c5
commit 17813e4b3e
1 changed files with 88 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

94
src/scripting/vm/jit.cpp
View file

@ -196,7 +196,7 @@ private:
//EMIT_OP(SCOPE);
//EMIT_OP(TAIL);
//EMIT_OP(TAIL_K);
//EMIT_OP(RESULT);
EMIT_OP(RESULT);
EMIT_OP(RET);
EMIT_OP(RETI);
//EMIT_OP(NEW);
@ -284,8 +284,8 @@ private:
// EMIT_OP(MINF_RK);
// EMIT_OP(MAXF_RR);
// EMIT_OP(MAXF_RK);
// EMIT_OP(ATAN2);
// EMIT_OP(FLOP);
EMIT_OP(ATAN2);
EMIT_OP(FLOP);
EMIT_OP(EQF_R);
EMIT_OP(EQF_K);
EMIT_OP(LTF_RR);
@ -799,7 +799,13 @@ private:
//void EmitSCOPE() {} // Scope check at runtime.
//void EmitTAIL() {} // Call+Ret in a single instruction
//void EmitTAIL_K() {}
//void EmitRESULT() {} // Result should go in register encoded in BC (in caller, after CALL)
void EmitRESULT()
{
// This instruction is just a placeholder to indicate where a return
// value should be stored. It does nothing on its own and should not
// be executed.
}
void EmitRET()
{
@ -1537,8 +1543,84 @@ private:
// void EmitMINF_RK() { }
// void EmitMAXF_RR() { } // fA = max(fB),fkC)
// void EmitMAXF_RK() { }
// void EmitATAN2() { } // fA = atan2(fB,fC), result is in degrees
// void EmitFLOP() { } // fA = f(fB), where function is selected by C
void EmitATAN2()
{
using namespace asmjit;
typedef double(*FuncPtr)(double, double);
auto call = cc.call(ToMemAddress(reinterpret_cast<const void*>(static_cast<FuncPtr>(g_atan2))), FuncSignature2<double, double, double>());
call->setRet(0, regF[a]);
call->setArg(0, regF[B]);
call->setArg(1, regF[C]);
static const double constant = 180 / M_PI;
auto tmp = cc.newIntPtr();
cc.mov(tmp, ToMemAddress(&constant));
cc.mulsd(regF[a], asmjit::x86::qword_ptr(tmp));
}
void EmitFLOP()
{
if (C == FLOP_NEG)
{
cc.xorpd(regF[a], regF[a]);
cc.subsd(regF[a], regF[B]);
}
else
{
auto v = cc.newXmm();
cc.movsd(v, regF[B]);
if (C == FLOP_TAN_DEG)
{
static const double constant = M_PI / 180;
auto tmp = cc.newIntPtr();
cc.mov(tmp, ToMemAddress(&constant));
cc.mulsd(v, asmjit::x86::qword_ptr(tmp));
}
typedef double(*FuncPtr)(double);
FuncPtr func = nullptr;
switch (C)
{
default: I_FatalError("Unknown OP_FLOP subfunction");
case FLOP_ABS: func = fabs; break;
case FLOP_EXP: func = g_exp; break;
case FLOP_LOG: func = g_log; break;
case FLOP_LOG10: func = g_log10; break;
case FLOP_SQRT: func = g_sqrt; break;
case FLOP_CEIL: func = ceil; break;
case FLOP_FLOOR: func = floor; break;
case FLOP_ACOS: func = g_acos; break;
case FLOP_ASIN: func = g_asin; break;
case FLOP_ATAN: func = g_atan; break;
case FLOP_COS: func = g_cos; break;
case FLOP_SIN: func = g_sin; break;
case FLOP_TAN: func = g_tan; break;
case FLOP_ACOS_DEG: func = g_acos; break;
case FLOP_ASIN_DEG: func = g_asin; break;
case FLOP_ATAN_DEG: func = g_atan; break;
case FLOP_COS_DEG: func = g_cosdeg; break;
case FLOP_SIN_DEG: func = g_sindeg; break;
case FLOP_TAN_DEG: func = g_tan; break;
case FLOP_COSH: func = g_cosh; break;
case FLOP_SINH: func = g_sinh; break;
case FLOP_TANH: func = g_tanh; break;
}
auto call = cc.call(ToMemAddress(reinterpret_cast<const void*>(func)), asmjit::FuncSignature1<double, double>());
call->setRet(0, regF[a]);
call->setArg(0, v);
if (C == FLOP_ACOS_DEG || C == FLOP_ASIN_DEG || C == FLOP_ATAN_DEG)
{
static const double constant = 180 / M_PI;
auto tmp = cc.newIntPtr();
cc.mov(tmp, ToMemAddress(&constant));
cc.mulsd(regF[a], asmjit::x86::qword_ptr(tmp));
}
}
}
void EmitEQF_R()
{