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- added missing unsigned casts to the VM.

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- make the pointer to string cast a bit more useful by using the actual object's type rather than 'Object' which can be a great asset when debugging.
- fixed a few bad asserts.
This commit is contained in:
Christoph Oelckers 2016-11-18 14:50:21 +01:00
parent f71aad4cdd
commit 24481781b4
4 changed files with 22 additions and 4 deletions
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6
src/scripting/codegeneration/codegen.cpp
View file

@ -871,7 +871,7 @@ ExpEmit FxIntCast::Emit(VMFunctionBuilder *build)
assert(basex->ValueType->GetRegType() == REGT_FLOAT);
from.Free(build);
ExpEmit to(build, REGT_INT);
build->Emit(OP_CAST, to.RegNum, from.RegNum, CAST_F2I);
build->Emit(OP_CAST, to.RegNum, from.RegNum, ValueType == TypeUInt32? CAST_F2U : CAST_F2I);
return to;
}
@ -962,7 +962,7 @@ ExpEmit FxFloatCast::Emit(VMFunctionBuilder *build)
assert(basex->ValueType->GetRegType() == REGT_INT);
from.Free(build);
ExpEmit to(build, REGT_FLOAT);
build->Emit(OP_CAST, to.RegNum, from.RegNum, CAST_I2F);
build->Emit(OP_CAST, to.RegNum, from.RegNum, basex->ValueType == TypeUInt32? CAST_U2F : CAST_I2F);
return to;
}
@ -3554,7 +3554,7 @@ ExpEmit FxShift::Emit(VMFunctionBuilder *build)
assert(!op2.Konst);
instr = InstrMap[index][1];
}
assert(instr > 0);
assert(instr != 0);
ExpEmit to(build, REGT_INT);
build->Emit(instr, to.RegNum, op1.RegNum, rop);
return to;

3
src/scripting/vm/vm.h
View file

@ -111,7 +111,10 @@ enum
{
CAST_I2F,
CAST_I2S,
CAST_U2F,
CAST_U2S,
CAST_F2I,
CAST_F2U,
CAST_F2S,
CAST_P2S,
CAST_S2I,

3
src/scripting/vm/vmdisasm.cpp
View file

@ -381,15 +381,18 @@ void VMDisasm(FILE *out, const VMOP *code, int codesize, const VMScriptFunction
switch (code[i].c)
{
case CAST_I2F:
case CAST_U2F:
mode = MODE_AF | MODE_BI | MODE_CUNUSED;
break;
case CAST_Co2S:
case CAST_So2S:
case CAST_N2S:
case CAST_I2S:
case CAST_U2S:
mode = MODE_AS | MODE_BI | MODE_CUNUSED;
break;
case CAST_F2I:
case CAST_F2U:
mode = MODE_AI | MODE_BF | MODE_CUNUSED;
break;
case CAST_F2S:

14
src/scripting/vm/vmexec.h
View file

@ -1658,15 +1658,27 @@ static void DoCast(const VMRegisters &reg, const VMFrame *f, int a, int b, int c
ASSERTF(a); ASSERTD(b);
reg.f[a] = reg.d[b];
break;
case CAST_U2F:
ASSERTF(a); ASSERTD(b);
reg.f[a] = unsigned(reg.d[b]);
break;
case CAST_I2S:
ASSERTS(a); ASSERTD(b);
reg.s[a].Format("%d", reg.d[b]);
break;
case CAST_U2S:
ASSERTS(a); ASSERTD(b);
reg.s[a].Format("%u", reg.d[b]);
break;
case CAST_F2I:
ASSERTD(a); ASSERTF(b);
reg.d[a] = (int)reg.f[b];
break;
case CAST_F2U:
ASSERTD(a); ASSERTF(b);
reg.d[a] = (int)(unsigned)reg.f[b];
break;
case CAST_F2S:
ASSERTS(a); ASSERTD(b);
reg.s[a].Format("%.14g", reg.f[b]);
@ -1674,7 +1686,7 @@ static void DoCast(const VMRegisters &reg, const VMFrame *f, int a, int b, int c
case CAST_P2S:
ASSERTS(a); ASSERTA(b);
reg.s[a].Format("%s<%p>", reg.atag[b] == ATAG_OBJECT ? "Object" : "Pointer", reg.a[b]);
reg.s[a].Format("%s<%p>", reg.atag[b] == ATAG_OBJECT ? (reg.a[b] == nullptr? "Object" : ((DObject*)reg.a[b])->GetClass()->TypeName.GetChars() ) : "Pointer", reg.a[b]);
break;
case CAST_S2I: