off++
	} else {
		if off+1 >= len(data) {
			return 0, 0, r.makeEOFError(off)
		}
		seqCount = int(data[off]) + (int(data[off+1]) << 8) + 0x7f00
		off += 2
	}

	// Read the Symbol_Compression_Modes byte.

	if off >= len(data) {
		return 0, 0, r.makeEOFError(off)
	}
	symMode := data[off]
	if symMode&3 != 0 {
		return 0, 0, r.makeError(off, "invalid symbol compression mode")
	}
	off++

	b := v.Block
	typ := &b.Func.Config.Types
	// match: (CMPBload {sym} [off] ptr x mem)
	// result: (CMPB (MOVBload {sym} [off] ptr mem) x)
	for {
		off := auxIntToInt32(v.AuxInt)
		sym := auxToSym(v.Aux)
		ptr := v_0
		x := v_1
		mem := v_2
		v.reset(OpAMD64CMPB)
		v0 := b.NewValue0(v.Pos, OpAMD64MOVBload, typ.UInt8)
		v0.AuxInt = int32ToAuxInt(off)
		v0.Aux = symToAux(sym)
		v0.AddArg2(ptr, mem)
		v.AddArg2(v0, x)

	if len == 0 {
		return nil
	}
	end := int(off) + len
	return r.b[int(off):end:end]
}

func (r *Reader) uint64At(off uint32) uint64 {
	b := r.BytesAt(off, 8)
	return binary.LittleEndian.Uint64(b)
}

func (r *Reader) int64At(off uint32) int64 {
	return int64(r.uint64At(off))
}

func (r *Reader) uint32At(off uint32) uint32 {
	b := r.BytesAt(off, 4)

		off := header.SetUint(ctxt.Arch, 8, uint64(state.nfunc))
		off = header.SetUint(ctxt.Arch, off, uint64(state.nfiles))
		if off != textStartOff {
			panic(fmt.Sprintf("pcHeader textStartOff: %d != %d", off, textStartOff))
		}
		off += int64(ctxt.Arch.PtrSize) // skip runtimeText relocation
		off = writeSymOffset(off, state.funcnametab)
		off = writeSymOffset(off, state.cutab)

		is64, _ := b.format.dwarf64()
		if is64 {
			off *= 8
		} else {
			off *= 4
		}
		off += rnglistsBase
		if uint64(int(off)) != off {
			b.error("DW_FORM_rnglistx offset out of range")
		}

		b1 := makeBuf(b.dwarf, b.format, "rnglists", 0, b.dwarf.rngLists)
		b1.skip(int(off))
		if is64 {
			off = b1.uint64()
		} else {
			off = uint64(b1.uint32())
		}
		if b1.err != nil {
			b.err = b1.err

                    len -= cnt;
                    off += cnt;
                }
                else {
                    if ( log.isTraceEnabled() ) {
                        log.trace(String.format("Wrote at %d remain %d off %d len %d", this.fp, len - w, off, w));
                    }
                    this.req.setParam(fh.getFid(), this.fp, len - w, b, off, w);
                    th.send(this.req, this.rsp);

#define x1in(off) (32*0 + off)(SP)
#define y1in(off) (32*1 + off)(SP)
#define z1in(off) (32*2 + off)(SP)
#define x2in(off) (32*3 + off)(SP)
#define y2in(off) (32*4 + off)(SP)
#define xout(off) (32*5 + off)(SP)
#define yout(off) (32*6 + off)(SP)
#define zout(off) (32*7 + off)(SP)
#define s2(off)   (32*8 + off)(SP)
#define z1sqr(off) (32*9 + off)(SP)
#define h(off)	  (32*10 + off)(SP)

				Off:    bo.Uint64(phdata[off+unsafe.Offsetof(ph.Off):]),
				Vaddr:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Vaddr):]),
				Paddr:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Paddr):]),
				Filesz: bo.Uint64(phdata[off+unsafe.Offsetof(ph.Filesz):]),
				Memsz:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Memsz):]),
				Align:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Align):]),
			}
		}

            if ( ( off + stub_frag_len ) > in.length ) {
                // shouldn't happen if alloc_hint is correct or greater
                byte[] tmp = new byte[off + stub_frag_len];
                System.arraycopy(in, 0, tmp, 0, off);
                in = tmp;
            }
            System.arraycopy(fragBytes, 24, in, off, stub_frag_len);
            off += stub_frag_len;
        }
        return in;

        public int read(byte[] b, int off, int len) throws IOException {
            return readImpl(b, off, len);
        }

        int readImpl(byte[] b, int off, int len) {
            if (b == null) {
                throw new NullPointerException();
            }

            if ((off < 0) || (off > b.length) || (len < 0)
                    || ((off + len) > b.length) || ((off + len) < 0)) {