Vm Struct Reference

Public Member Functions
double	operator() (double x) const

Public Attributes
CodeSet	code_

Detailed Description

Definition at line 55 of file calc2.cpp.

Member Function Documentation

operator()()

double Vm::operator() ( double x ) const

inline

Definition at line 57 of file calc2.cpp.

    {
        const size_t maxStack = 16;
        double stack[maxStack];
        double *p = stack;
        CodeSet::const_iterator pc = code_.begin();
 
        while (pc != code_.end()) {
            switch (pc->op_) {
            case OpVarX:
                *p++ = x;
                break;
            case OpImm:
                *p++ = pc->val_;
                break;
            case OpNeg:
                p[-1] = -p[-1];
                break;
            case OpAdd:
                --p;
                p[-1] += p[0];
                break;
            case OpSub:
                --p;
                p[-1] -= p[0];
                break;
            case OpMul:
                --p;
                p[-1] *= p[0];
                break;
            case OpDiv:
                --p;
                p[-1] /= p[0];
                break;
            }
            ++pc;
            assert(p < stack + maxStack);
        }
        return p[-1];
    }

Member Data Documentation

code_

CodeSet Vm::code_

Definition at line 56 of file calc2.cpp.

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The documentation for this struct was generated from the following file:

• libraries/fc/libraries/ff/depends/xbyak/sample/calc2.cpp