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) { Label skip(c.newLabel()); X86CompilerFuncDecl* func = c.newFunc(kX86FuncConvDefault, FuncBuilder1<int, int>()); func->setHint(kFuncHintNaked, true); GpVar var(c.getGpArg(0)); c.cmp(var, imm(1)); c.jle(skip); GpVar tmp(c.newGpVar(kX86VarTypeInt32)); c.mov(tmp, var); c.dec(tmp); X86CompilerFuncCall* fCall = c.call(func->getEntryLabel()); fCall->setPrototype(kX86FuncConvDefault, FuncBuilder1<int, int>()); fCall->setArgument(0, tmp); fCall->setReturn(tmp); c.mul(c.newGpVar(kX86VarTypeInt32), var, tmp); c.bind(skip); c.ret(var); 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(); }
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(); }
virtual void compile(X86Compiler& c) { c.newFunc(kX86FuncConvDefault, FuncBuilder0<Void>()); Label L_A = c.newLabel(); Label L_B = c.newLabel(); Label L_C = c.newLabel(); c.jmp(L_B); c.bind(L_A); c.jmp(L_C); c.bind(L_B); c.jmp(L_A); c.bind(L_C); c.ret(); c.endFunc(); }
int main(int argc, char* argv[]) { using namespace AsmJit; // ========================================================================== // Log compiler output. FileLogger logger(stderr); logger.setLogBinary(true); // Create compiler. /* X86Compiler c; c.setLogger(&logger); c.newFunc(kX86FuncConvDefault, FuncBuilder0<Void>()); c.getFunc()->setHint(kFuncHintNaked, true); X86CompilerFuncCall* ctx = c.call((void*)dummyFunc); ctx->setPrototype(kX86FuncConvDefault, FuncBuilder0<Void>()); c.endFunc(); */ X86Compiler c; c.setLogger(&logger); c.newFunc(kX86FuncConvDefault, FuncBuilder0<void>()); c.getFunc()->setHint(kFuncHintNaked, true); Label l91 = c.newLabel(); Label l92 = c.newLabel(); Label l93 = c.newLabel(); Label l94 = c.newLabel(); Label l95 = c.newLabel(); Label l96 = c.newLabel(); Label l97 = c.newLabel(); c.bind(l92); GpVar _var91(c.newGpVar()); GpVar _var92(c.newGpVar()); c.bind(l93); c.jmp(l91); c.bind(l95); c.mov(_var91, imm(0)); c.bind(l96); c.jmp(l93); c.mov(_var92, imm(1)); c.jmp(l91); c.bind(l94); c.jmp(l92); c.bind(l97); c.add(_var91, _var92); c.bind(l91); c.ret(); c.endFunc(); typedef void (*Func9)(void); Func9 func9 = asmjit_cast<Func9>(c.make()); // ========================================================================== // ========================================================================== // Make the function. // MyFn fn = asmjit_cast<MyFn>(c.make()); // Call it. // printf("Result %llu\n", (unsigned long long)fn()); // Free the generated function if it's not needed anymore. //MemoryManager::getGlobal()->free((void*)fn); // ========================================================================== return 0; }