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Added EmitParamInt to VMFunctionBuilder

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This commit is contained in:
Randy Heit 2013-07-27 21:35:22 -05:00
parent 57bb9c2f7a
commit 0603295822
2 changed files with 23 additions and 0 deletions
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22
src/zscript/vmbuilder.cpp
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@ -468,6 +468,28 @@ size_t VMFunctionBuilder::Emit(int opcode, int opabc)
return Code.Push(op);
}
//==========================================================================
//
// VMFunctionBuilder :: EmitParamInt
//
// Passes a constant integer parameter, using either PARAMI and an immediate
// value or PARAM and a constant register, as appropriate.
//
//==========================================================================
size_t VMFunctionBuilder::EmitParamInt(int value)
{
// Immediates for PARAMI must fit in 24 bits.
if (((value << 8) >> 8) == value)
{
return Emit(OP_PARAMI, value);
}
else
{
return Emit(OP_PARAM, 0, REGT_INT | REGT_KONST, GetConstantInt(value));
}
}
//==========================================================================
//
// VMFunctionBuilder :: EmitLoadInt

1
src/zscript/vmbuilder.h
View file

@ -36,6 +36,7 @@ public:
size_t Emit(int opcode, int opa, int opb, int opc);
size_t Emit(int opcode, int opa, VM_SHALF opbc);
size_t Emit(int opcode, int opabc);
size_t EmitParamInt(int value);
size_t EmitLoadInt(int regnum, int value);
size_t EmitRetInt(int retnum, bool final, int value);