Examples with RegisterSpecList com.android.dx.rop.code.RegisterSpecList used on opensource projects

Example 11 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form12x method writeTo.

/** {@inheritDoc} */
@Override
public void writeTo(AnnotatedOutput out, DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    int sz = regs.size();
    /*
         * The (sz - 2) and (sz - 1) below makes this code work for
         * both the two- and three-register ops. (See "case 3" in
         * isCompatible(), above.)
         */
    write(out, opcodeUnit(insn, makeByte(regs.get(sz - 2).getReg(), regs.get(sz - 1).getReg())));
}

Example 12 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form12x method compatibleRegs.

/** {@inheritDoc} */
@Override
public BitSet compatibleRegs(DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    BitSet bits = new BitSet(2);
    int r0 = regs.get(0).getReg();
    int r1 = regs.get(1).getReg();
    switch(regs.size()) {
        case 2:
            {
                bits.set(0, unsignedFitsInNibble(r0));
                bits.set(1, unsignedFitsInNibble(r1));
                break;
            }
        case 3:
            {
                if (r0 != r1) {
                    bits.set(0, false);
                    bits.set(1, false);
                } else {
                    boolean dstRegComp = unsignedFitsInNibble(r1);
                    bits.set(0, dstRegComp);
                    bits.set(1, dstRegComp);
                }
                bits.set(2, unsignedFitsInNibble(regs.get(2).getReg()));
                break;
            }
        default:
            {
                throw new AssertionError();
            }
    }
    return bits;
}

Example 13 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form12x method insnArgString.

/** {@inheritDoc} */
@Override
public String insnArgString(DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    int sz = regs.size();
    return regs.get(sz - 2).regString() + ", " + regs.get(sz - 1).regString();
}

Example 14 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form21c method compatibleRegs.

/** {@inheritDoc} */
@Override
public BitSet compatibleRegs(DalvInsn insn) {
    RegisterSpecList regs = insn.getRegisters();
    int sz = regs.size();
    BitSet bits = new BitSet(sz);
    boolean compat = unsignedFitsInByte(regs.get(0).getReg());
    if (sz == 1) {
        bits.set(0, compat);
    } else {
        if (regs.get(0).getReg() == regs.get(1).getReg()) {
            bits.set(0, compat);
            bits.set(1, compat);
        }
    }
    return bits;
}

Example 15 with RegisterSpecList

use of com.android.dx.rop.code.RegisterSpecList in project buck by facebook.

the class Form21c method isCompatible.

/** {@inheritDoc} */
@Override
public boolean isCompatible(DalvInsn insn) {
    if (!(insn instanceof CstInsn)) {
        return false;
    }
    RegisterSpecList regs = insn.getRegisters();
    RegisterSpec reg;
    switch(regs.size()) {
        case 1:
            {
                reg = regs.get(0);
                break;
            }
        case 2:
            {
                /*
                 * This format is allowed for ops that are effectively
                 * 2-arg but where the two args are identical.
                 */
                reg = regs.get(0);
                if (reg.getReg() != regs.get(1).getReg()) {
                    return false;
                }
                break;
            }
        default:
            {
                return false;
            }
    }
    if (!unsignedFitsInByte(reg.getReg())) {
        return false;
    }
    CstInsn ci = (CstInsn) insn;
    int cpi = ci.getIndex();
    Constant cst = ci.getConstant();
    if (!unsignedFitsInShort(cpi)) {
        return false;
    }
    return (cst instanceof CstType) || (cst instanceof CstFieldRef) || (cst instanceof CstString);
}