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, FuncBuilder0<int>());
c.getFunc()->setHint(kFuncHintNaked, false);
GpVar v0(c.newGpVar(kX86VarTypeGpd));
GpVar v1(c.newGpVar(kX86VarTypeGpd));
GpVar cnt(c.newGpVar(kX86VarTypeGpd));
c.xor_(v0, v0);
c.xor_(v1, v1);
c.spill(v0);
c.spill(v1);
Label L(c.newLabel());
c.mov(cnt, imm(32));
c.bind(L);
c.inc(v1);
c.add(v0, v1);
c.dec(cnt);
c.jnz(L);
c.ret(v0);
c.endFunc();
}
virtual void compile(X86Compiler& c)
{
int i;
GpVar var[32];
c.newFunc(kX86FuncConvDefault, FuncBuilder1<Void, int*>());
for (i = 0; i < ASMJIT_ARRAY_SIZE(var); i++)
{
var[i] = c.newGpVar(kX86VarTypeGpd);
c.xor_(var[i], var[i]);
}
GpVar v0(c.newGpVar(kX86VarTypeGpd));
Label L(c.newLabel());
c.mov(v0, imm(32));
c.bind(L);
for (i = 0; i < ASMJIT_ARRAY_SIZE(var); i++)
{
c.add(var[i], imm(i));
}
c.dec(v0);
c.jnz(L);
GpVar a0(c.getGpArg(0));
for (i = 0; i < ASMJIT_ARRAY_SIZE(var); i++)
{
c.mov(dword_ptr(a0, i * 4), var[i]);
}
c.endFunc();
}
