virtual void compile(X86Compiler& c)
{
c.newFunc(kX86FuncConvDefault, FuncBuilder3<Void, uint32_t*, const uint32_t*, size_t>());
c.getFunc()->setHint(kFuncHintNaked, true); // Omit unnecessary prolog/epilog.
Label L_Loop = c.newLabel(); // Create base labels we use
Label L_Exit = c.newLabel(); // in our function.
GpVar dst(c.getGpArg(0)); // Get reference to function
GpVar src(c.getGpArg(1)); // arguments.
GpVar cnt(c.getGpArg(2));
c.alloc(dst); // Allocate all registers now,
c.alloc(src); // because we want to keep them
c.alloc(cnt); // in physical registers only.
c.test(cnt, cnt); // Exit if length is zero.
c.jz(L_Exit);
c.bind(L_Loop); // Bind the loop label here.
GpVar tmp(c.newGpVar(kX86VarTypeGpd)); // Copy a single dword (4 bytes).
c.mov(tmp, dword_ptr(src));
c.mov(dword_ptr(dst), tmp);
c.add(src, 4); // Increment dst/src pointers.
c.add(dst, 4);
c.dec(cnt); // Loop until cnt isn't zero.
c.jnz(L_Loop);
c.bind(L_Exit); // Bind the exit label here.
c.endFunc(); // End of function.
}
virtual void compile(X86Compiler& c)
{
c.newFunc(kX86FuncConvDefault, FuncBuilder3<int, int, int, int>());
GpVar x(c.getGpArg(0));
GpVar y(c.getGpArg(1));
GpVar op(c.getGpArg(2));
GpVar result;
X86CompilerFuncCall* fCall;
Label opAdd(c.newLabel());
Label opMul(c.newLabel());
c.cmp(op, 0);
c.jz(opAdd);
c.cmp(op, 1);
c.jz(opMul);
result = c.newGpVar();
c.mov(result, imm(0));
c.ret(result);
c.bind(opAdd);
result = c.newGpVar();
fCall = c.call((void*)calledFuncAdd);
fCall->setPrototype(kX86FuncConvDefault, FuncBuilder2<int, int, int>());
fCall->setArgument(0, x);
fCall->setArgument(1, y);
fCall->setReturn(result);
c.ret(result);
c.bind(opMul);
result = c.newGpVar();
fCall = c.call((void*)calledFuncMul);
fCall->setPrototype(kX86FuncConvDefault, FuncBuilder2<int, int, int>());
fCall->setArgument(0, x);
fCall->setArgument(1, y);
fCall->setReturn(result);
c.ret(result);
c.endFunc();
}
