mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-11-28 23:12:24 +00:00
- implemented LBIT, SBIT, VTBL, SCOPE, NEW, NEW_K, THROW, EQA_R and EQA_K
This commit is contained in:
Magnus Norddahl
parent
ccd2f58fb4
commit
323d290c99
1 changed files with 195 additions and 25 deletions
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@ -174,7 +174,7 @@ private:
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EMIT_OP(LV3_R);
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//EMIT_OP(LCS);
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//EMIT_OP(LCS_R);
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//EMIT_OP(LBIT);
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EMIT_OP(LBIT);
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EMIT_OP(SB);
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EMIT_OP(SB_R);
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EMIT_OP(SH);
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@ -195,7 +195,7 @@ private:
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EMIT_OP(SV2_R);
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EMIT_OP(SV3);
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EMIT_OP(SV3_R);
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// EMIT_OP(SBIT);
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EMIT_OP(SBIT);
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EMIT_OP(MOVE);
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EMIT_OP(MOVEF);
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// EMIT_OP(MOVES);
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@ -216,16 +216,16 @@ private:
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//EMIT_OP(PARAMI);
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//EMIT_OP(CALL);
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//EMIT_OP(CALL_K);
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//EMIT_OP(VTBL);
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//EMIT_OP(SCOPE);
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EMIT_OP(VTBL);
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EMIT_OP(SCOPE);
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//EMIT_OP(TAIL);
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//EMIT_OP(TAIL_K);
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EMIT_OP(RESULT);
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EMIT_OP(RET);
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EMIT_OP(RETI);
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//EMIT_OP(NEW);
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//EMIT_OP(NEW_K);
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//EMIT_OP(THROW);
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EMIT_OP(NEW);
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EMIT_OP(NEW_K);
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EMIT_OP(THROW);
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EMIT_OP(BOUND);
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EMIT_OP(BOUND_K);
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EMIT_OP(BOUND_R);
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@ -344,8 +344,8 @@ private:
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EMIT_OP(ADDA_RR);
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EMIT_OP(ADDA_RK);
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EMIT_OP(SUBA);
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// EMIT_OP(EQA_R);
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// EMIT_OP(EQA_K);
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EMIT_OP(EQA_R);
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EMIT_OP(EQA_K);
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}
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}
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@ -630,18 +630,16 @@ private:
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void EmitLCS_R()
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{
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}
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}*/
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void EmitLBIT() // rA = !!(*rB & C) -- *rB is a byte
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void EmitLBIT()
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{
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EmitNullPointerThrow(B, X_READ_NIL);
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auto tmp = cc.newInt8();
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cc.mov(regD[a], PB);
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cc.movsx(regD[a], asmjit::x86::byte_ptr(PB));
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cc.and_(regD[a], C);
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cc.test(regD[a], regD[a]);
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cc.sete(tmp);
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cc.movzx(regD[a], tmp);
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}*/
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cc.cmp(regD[a], 0);
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cc.setne(regD[a]);
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}
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// Store instructions. *(rA + rkC) = rB
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@ -778,7 +776,19 @@ private:
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cc.movsd(asmjit::x86::qword_ptr(tmp, 16), regF[B + 2]);
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}
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// void EmitSBIT() {} // *rA |= C if rB is true, *rA &= ~C otherwise
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void EmitSBIT()
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{
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EmitNullPointerThrow(B, X_WRITE_NIL);
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auto tmp1 = cc.newInt32();
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auto tmp2 = cc.newInt32();
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cc.mov(tmp1, asmjit::x86::byte_ptr(PA));
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cc.mov(tmp2, tmp1);
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cc.or_(tmp1, (int)C);
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cc.and_(tmp2, ~(int)C);
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cc.test(regD[B], regD[B]);
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cc.cmove(tmp1, tmp2);
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cc.mov(asmjit::x86::byte_ptr(PA), tmp1);
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}
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// Move instructions.
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@ -1010,8 +1020,64 @@ private:
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//void EmitPARAMI() {} // push immediate, signed integer for function call
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//void EmitCALL() {} // Call function pkA with parameter count B and expected result count C
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//void EmitCALL_K() {}
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//void EmitVTBL() {} // dereferences a virtual method table.
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//void EmitSCOPE() {} // Scope check at runtime.
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void EmitVTBL()
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{
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auto notnull = cc.newLabel();
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cc.test(regA[B], regA[B]);
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cc.jnz(notnull);
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EmitThrowException(X_READ_NIL);
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cc.bind(notnull);
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auto result = cc.newInt32();
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typedef VMFunction*(*FuncPtr)(DObject*, int);
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auto call = cc.call(ToMemAddress(reinterpret_cast<const void*>(static_cast<FuncPtr>([](DObject *o, int c) -> VMFunction* {
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auto p = o->GetClass();
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assert(c < (int)p->Virtuals.Size());
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return p->Virtuals[c];
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}))), asmjit::FuncSignature2<void*, void*, int>());
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call->setRet(0, result);
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call->setArg(0, regA[a]);
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call->setArg(1, asmjit::Imm(C));
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}
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void EmitSCOPE()
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{
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auto notnull = cc.newLabel();
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cc.test(regA[a], regA[a]);
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cc.jnz(notnull);
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EmitThrowException(X_READ_NIL);
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cc.bind(notnull);
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auto f = cc.newIntPtr();
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cc.mov(f, ToMemAddress(konsta[C].v));
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auto result = cc.newInt32();
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typedef int(*FuncPtr)(DObject*, VMFunction*, int);
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auto call = cc.call(ToMemAddress(reinterpret_cast<const void*>(static_cast<FuncPtr>([](DObject *o, VMFunction *f, int b) -> int {
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try
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{
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FScopeBarrier::ValidateCall(o->GetClass(), f, b - 1);
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return 1;
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}
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catch (const CVMAbortException &)
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{
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// To do: pass along the exception info
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return 0;
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}
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}))), asmjit::FuncSignature3<int, void*, void*, int>());
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call->setRet(0, result);
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call->setArg(0, regA[a]);
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call->setArg(1, f);
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call->setArg(2, asmjit::Imm(B));
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auto notzero = cc.newLabel();
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cc.test(result, result);
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cc.jnz(notzero);
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EmitThrowException(X_OTHER);
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cc.bind(notzero);
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}
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//void EmitTAIL() {} // Call+Ret in a single instruction
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//void EmitTAIL_K() {}
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@ -1160,9 +1226,98 @@ private:
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cc.ret(numret);
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}
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//void EmitNEW() {}
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//void EmitNEW_K() {}
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//void EmitTHROW() {} // A == 0: Throw exception object pB, A == 1: Throw exception object pkB, A >= 2: Throw VM exception of type BC
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void EmitNEW()
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{
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auto result = cc.newIntPtr();
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typedef DObject*(*FuncPtr)(PClass*, int);
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auto call = cc.call(ToMemAddress(reinterpret_cast<const void*>(static_cast<FuncPtr>([](PClass *cls, int c) -> DObject* {
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try
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{
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if (!cls->ConstructNative)
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{
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ThrowAbortException(X_OTHER, "Class %s requires native construction", cls->TypeName.GetChars());
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}
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else if (cls->bAbstract)
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{
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ThrowAbortException(X_OTHER, "Cannot instantiate abstract class %s", cls->TypeName.GetChars());
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}
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else if (cls->IsDescendantOf(NAME_Actor)) // Creating actors here must be outright prohibited
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{
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ThrowAbortException(X_OTHER, "Cannot create actors with 'new'");
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}
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// [ZZ] validate readonly and between scope construction
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if (c) FScopeBarrier::ValidateNew(cls, c - 1);
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return cls->CreateNew();
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}
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catch (const CVMAbortException &)
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{
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// To do: pass along the exception info
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return nullptr;
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}
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}))), asmjit::FuncSignature2<void*, void*, int>());
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call->setRet(0, result);
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call->setArg(0, regA[B]);
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call->setArg(1, asmjit::Imm(C));
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auto notnull = cc.newLabel();
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cc.test(result, result);
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cc.jnz(notnull);
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EmitThrowException(X_OTHER);
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cc.bind(notnull);
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cc.mov(regA[a], result);
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}
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void EmitNEW_K()
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{
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PClass *cls = (PClass*)konsta[B].v;
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if (!cls->ConstructNative)
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{
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EmitThrowException(X_OTHER); // "Class %s requires native construction", cls->TypeName.GetChars()
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}
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else if (cls->bAbstract)
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{
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EmitThrowException(X_OTHER); // "Cannot instantiate abstract class %s", cls->TypeName.GetChars()
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}
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else if (cls->IsDescendantOf(NAME_Actor)) // Creating actors here must be outright prohibited
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{
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EmitThrowException(X_OTHER); // "Cannot create actors with 'new'"
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}
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else
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{
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auto result = cc.newIntPtr();
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auto regcls = cc.newIntPtr();
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cc.mov(regcls, ToMemAddress(konsta[B].v));
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typedef DObject*(*FuncPtr)(PClass*, int);
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auto call = cc.call(ToMemAddress(reinterpret_cast<const void*>(static_cast<FuncPtr>([](PClass *cls, int c) -> DObject* {
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try
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{
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if (c) FScopeBarrier::ValidateNew(cls, c - 1);
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return cls->CreateNew();
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}
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catch (const CVMAbortException &)
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{
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// To do: pass along the exception info
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return nullptr;
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}
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}))), asmjit::FuncSignature2<void*, void*, int>());
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call->setRet(0, result);
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call->setArg(0, regcls);
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call->setArg(1, asmjit::Imm(C));
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auto notnull = cc.newLabel();
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cc.test(result, result);
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cc.jnz(notnull);
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EmitThrowException(X_OTHER);
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cc.bind(notnull);
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cc.mov(regA[a], result);
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}
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}
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void EmitTHROW()
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{
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EmitThrowException(EVMAbortException(BC));
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}
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void EmitBOUND()
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{
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@ -2447,8 +2602,23 @@ private:
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cc.mov(regA[a], tmp);
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}
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// void EmitEQA_R() { } // if ((pB == pkC) != A) then pc++
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// void EmitEQA_K() { }
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void EmitEQA_R()
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{
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EmitComparisonOpcode([&](asmjit::X86Gp& result) {
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cc.cmp(regA[B], regA[C]);
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cc.sete(result);
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});
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}
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void EmitEQA_K()
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{
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EmitComparisonOpcode([&](asmjit::X86Gp& result) {
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auto tmp = cc.newIntPtr();
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cc.mov(tmp, ToMemAddress(konsta[C].v));
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cc.cmp(regA[B], tmp);
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cc.sete(result);
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});
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}
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void Setup()
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{
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