Re: [Qemu-devel] [PATCH v6 02/11] Add uleb encoding/decoding functions

[Orit Wasserman]

On 01/25/2012 02:22 PM, Orit Wasserman wrote:
> On 01/25/2012 01:48 PM, Avi Kivity wrote:
>> On 01/25/2012 01:26 PM, Orit Wasserman wrote:
>>> Implement Unsigned Little Endian Base 128.
>>>
>>>  
>>> +/* ULEB128 */
>>> +int uleb128_encode_small(uint8_t *out, uint32_t n);
>>> +int uleb128_decode_small(const uint8 *in, uint32_t *n);
>>> +
>>>  #endif
>>> diff --git a/savevm.c b/savevm.c
>>> index 80be1ff..304db31 100644
>>> --- a/savevm.c
>>> +++ b/savevm.c
>>> @@ -2297,3 +2297,29 @@ void vmstate_register_ram_global(MemoryRegion *mr)
>>>  {
>>>      vmstate_register_ram(mr, NULL);
>>>  }
>>> +
>>> +/* ULEB128 */
>>> +int uleb128_encode_small(uint8_t *out, uint32_t n)
>>> +{
>>
>> assert(n <= 0x3fff);
>>
>>> +    if (n < 0x80) {
>>> +        *out++ = n;
>>> +        return 1;
>>> +    } else {
>>> +        *out++ = (n & 0x7f) | 0x80;
>>> +        *out++ = n >> 7;
>>
>> return 2?
> oops , where did it go ...
for some reason it is in patch 5 
I will fix the patch series ..

> I will fix it asp.
>>
>>> +    }
>>> +    return 0;
>>> +}
>>> +
>>> +int uleb128_decode_small(const uint8 *in, uint32_t *n)
>>> +{
>>> +    if (!(*in & 0x80)) {
>>> +        *n = *in++;
>>> +        return 1;
>>> +    } else {
>>> +        *n = *in++ & 0x7f;
>>
>> assert(!(*in & 0x80));
>>
>>> +        *n |= *in++ << 7;
>>> +        return 0;
>>
>> return 2?
>>
>>> +    }
>>> +}
>>> +
>>
>>
>