Examples of org.jnode.assembler.x86.X86Register

org.jnode.assembler.x86.X86Register.GPR
Registers of the x86 architecture. @author epr @author Levente S\u00e1ntha (lsantha@users.sourceforge.net)

        final RefItem ref = vstack.popRef();


        // Load value & ref
        val.load(eContext);
        ref.load(eContext);
        final GPR refr = ref.getRegister();


        if (!wide) {
            final WordItem wval = (WordItem) val;
            final GPR valr = wval.getRegister();
            final char fieldType = field.getSignature().charAt(0);


            // Store field
            switch (fieldType) {
                case 'Z': // boolean
                case 'B': // byte
                    wval.loadToBITS8GPR(eContext);
                    os.writeMOV(BITS8, refr, offset, wval.getRegister());
                    break;
                case 'C': // char
                case 'S': // short
                    os.writeMOV(BITS16, refr, offset, valr);
                    break;
                case 'F': // float
                case 'I': // int
                case 'L': // Object
                case '[': // array
                    os.writeMOV(valr.getSize(), refr, offset, valr);
                    break;
                default:
                    throw new IllegalArgumentException("Unknown fieldType: " + fieldType);
            }
            // Writebarrier
            if (!inf.isPrimitive() && helper.needsWriteBarrier()) {
                final GPR tmp = (GPR) L1AHelper.requestRegister(eContext,
                    JvmType.REFERENCE, false);
                helper.writePutfieldWriteBarrier(inf, refr, valr, tmp);
                L1AHelper.releaseRegister(eContext, tmp);
            }
        } else {

View Full Code Here

        val.load(eContext);


        // Put static field
        if (!fieldRef.isWide()) {
            final WordItem wval = (WordItem) val;
            final GPR valr = wval.getRegister();


            if (os.isCode32() || (wval.getType() != JvmType.REFERENCE)) {
                if (sf.isShared()) {
                    helper.writePutStaticsEntry(curInstrLabel, valr, sf);
                } else {
                    final GPR tmp = (GPR) L1AHelper.requestRegister(eContext,
                        JvmType.REFERENCE, false);
                    helper.writePutStaticsEntry(curInstrLabel, valr, sf, tmp);
                    L1AHelper.releaseRegister(eContext, tmp);
                }
            } else {
                if (sf.isShared()) {
                    helper.writePutStaticsEntry64(curInstrLabel, (GPR64) valr, sf);
                } else {
                    final GPR tmp = (GPR) L1AHelper.requestRegister(eContext, JvmType.REFERENCE, false);
                    helper.writePutStaticsEntry64(curInstrLabel, (GPR64) valr, sf, tmp);
                    L1AHelper.releaseRegister(eContext, tmp);
                }
            }
            if (!sf.isPrimitive() && helper.needsWriteBarrier()) {
                final GPR tmp = (GPR) L1AHelper.requestRegister(eContext, JvmType.INT, false);
                helper.writePutstaticWriteBarrier(sf, valr, tmp);
                L1AHelper.releaseRegister(eContext, tmp);
            }
        } else {
            final DoubleWordItem dval = (DoubleWordItem) val;
            if (os.isCode32()) {
                if (sf.isShared()) {
                    helper.writePutStaticsEntry64(curInstrLabel, dval.getLsbRegister(eContext), dval
                        .getMsbRegister(eContext), sf);
                } else {
                    final GPR tmp = (GPR) L1AHelper.requestRegister(eContext, JvmType.REFERENCE, false);
                    helper.writePutStaticsEntry64(curInstrLabel, dval.getLsbRegister(eContext),
                        dval.getMsbRegister(eContext), sf, tmp);
                    L1AHelper.releaseRegister(eContext, tmp);
                }
            } else {
                if (sf.isShared()) {
                    helper.writePutStaticsEntry64(curInstrLabel, dval.getRegister(eContext), sf);
                } else {
                    final GPR tmp = (GPR) L1AHelper.requestRegister(eContext, JvmType.REFERENCE, false);
                    helper.writePutStaticsEntry64(curInstrLabel, dval.getRegister(eContext), sf, tmp);
                    L1AHelper.releaseRegister(eContext, tmp);
                }
            }
        }

View Full Code Here

     */
    public final void visit_tableswitch(int defAddress, int lowValue, int highValue, int[] addresses) {
        // IMPROVE: check Jaos implementation
        final IntItem val = vstack.popInt();
        val.load(eContext);
        GPR valr = val.getRegister();
        vstack.push(eContext);


        final int n = addresses.length;
        if ((n > 4) && os.isCode32()) {
            // Optimized version.  Needs some overhead, so only useful for
            // larger tables.
            counters.getCounter("tableswitch-opt").inc();


            final GPR tmp = (GPR) L1AHelper.requestRegister(eContext, JvmType.REFERENCE, false);
            if (os.isCode64()) {
                GPR64 valr64 = L1AHelper.get64BitReg(eContext, valr);
                os.writeMOVSXD(valr64, (GPR32) valr);
                valr = valr64;
            }

View Full Code Here

                throw new IllegalArgumentException("Invalid type " + jvmType);
        }


        // Create result
        final WordItem result;
        final GPR resultr;
        result = L1AHelper.requestWordRegister(eContext, resultType,
            (valSize == BYTESIZE));
        resultr = result.getRegister();


        // Load
        idx.loadIf(eContext, ~Item.Kind.CONSTANT);
        ref.load(eContext);
        final GPR refr = ref.getRegister();


        // Verify
        checkBounds(ref, idx);


        if (jvmType == JvmType.CHAR) {
            // Clear resultr, so we avoid a MOVZX afterwards.
            os.writeXOR(resultr, resultr);
        }


        // Load data
        if (idx.isConstant()) {
            final int offset = idx.getValue() * scale;
            os.writeMOV(valSize, resultr, refr, offset + arrayDataOffset);
        } else {
            GPR idxr = idx.getRegister();
            if (os.isCode64()) {
                final GPR64 idxr64 = (GPR64) eContext.getGPRPool().getRegisterInSameGroup(idxr, JvmType.LONG);
                os.writeMOVSXD(idxr64, (GPR32) idxr);
                idxr = idxr64;
            }

View Full Code Here

        } else {
            val.load(eContext);
        }
        idx.loadIf(eContext, ~Item.Kind.CONSTANT | extraLoadIdxMask);
        ref.load(eContext);
        final GPR refr = ref.getRegister();
        final GPR valr = val.getRegister();
        final X86RegisterPool pool = eContext.getGPRPool();


        // Verify
        checkBounds(ref, idx);


        //todo spec issue: add type compatibility check (elemType <- valueType), throw ArrayStoreException


        // Store
        if (idx.isConstant()) {
            final int offset = idx.getValue() * scale;
            os.writeMOV(valSize, refr, offset + arrayDataOffset, valr);
        } else {
            GPR idxr = idx.getRegister();
            if (os.isCode64()) {
                final GPR64 idxr64 = (GPR64) pool.getRegisterInSameGroup(idxr, JvmType.LONG);
                os.writeMOVSXD(idxr64, (GPR32) idxr);
                idxr = idxr64;
            }
            os.writeMOV(valSize, refr, idxr, scale, arrayDataOffset, valr);
        }


        // Call write barrier (reference only)
        if ((jvmType == JvmType.REFERENCE) && useBarrier) {
            // the write barrier could easily be modified to avoid using a
            // scratch register
            final GPR idxr;
            if (os.isCode32()) {
                idxr = idx.getRegister();
            } else {
                idxr = (GPR) eContext.getGPRPool().getRegisterInSameGroup(idx.getRegister(), JvmType.LONG);
            }
            final GPR scratch = (GPR) pool.request(JvmType.INT);
            helper.writeArrayStoreWriteBarrier(refr, idxr, valr, scratch);
            pool.release(scratch);
        }


        // Release

View Full Code Here

    /**
     * Pop a word item of the stack and return it to the caller
     */
    private void wreturn(int jvmType, boolean callVisitReturn) {
        final WordItem val = (WordItem) vstack.pop(jvmType);
        final GPR reg;
        if (os.isCode32() || (jvmType != JvmType.REFERENCE)) {
            reg = X86Register.EAX;
        } else {
            reg = X86Register.RAX;
        }

View Full Code Here

            .getDeclaringClass();
        if (!declClass.isAlwaysInitialized()) {
            final Label curInstrLabel = getCurInstrLabel();


            // Allocate a register to hold the class
            final GPR classReg = (GPR) L1AHelper.requestRegister(eContext, JvmType.REFERENCE, false);


            // Load classRef into the register
            // Load the class from the statics table
            if (os.isCode32()) {
                helper.writeGetStaticsEntry(new Label(curInstrLabel + "$$ic"),

View Full Code Here

            }
            os.writePOP(helper.BP, disp);
        } else {
            // Load into register
            val.load(eContext);
            final GPR valr = val.getRegister();
            // Store
            os.writeMOV(valr.getSize(), helper.BP, disp, valr);
        }


        // Release
        val.release(eContext);
    }

View Full Code Here

        final Label curInstrLabel = getCurInstrLabel();
        final Label test = new Label(curInstrLabel + "$$cbtest");
        final Label failed = new Label(curInstrLabel + "$$cbfailed");


        assertCondition(ref.isGPR(), "ref must be in a register");
        final GPR refr = ref.getRegister();


        os.writeJMP(test);
        os.setObjectRef(failed);
        // Call SoftByteCodes.throwArrayOutOfBounds
        os.writePUSH(refr);

View Full Code Here

        final RefItem ref = vstack.popRef();


        val.load(eContext);
        idx.loadIf(eContext, ~Item.Kind.CONSTANT);
        ref.load(eContext);
        final GPR refr = ref.getRegister();


        // Check bound
        checkBounds(ref, idx);


        // Store

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.jnode.assembler.x86.X86Register

org.jnode.assembler.x86.X86BinaryAssembler

org.jnode.assembler.x86.X86Register.GPR

org.jnode.build.x86.BootImageBuilder

org.jnode.jnasm.assembler.x86.X86Core

org.jnode.jnasm.assembler.x86.X86Support

org.jnode.test.core.CompilerTest

org.jnode.test.ResolverTest

org.jnode.test.X86StreamTest

org.jnode.vm.compiler.ir.IRTest

org.jnode.vm.compiler.ir.NativeTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.