Hi, Philippe,
On 06/29/2021 02:46 AM, Philippe Mathieu-Daudé wrote:
> On 6/28/21 2:04 PM, Song Gao wrote:
>> This patch add main translation routines and
>> basic functions for translation.
>>
>> Signed-off-by: Song Gao <gaos...@loongson.cn>
>> ---
>> target/loongarch/helper.h | 10 +
>> target/loongarch/op_helper.c | 28 +++
>> target/loongarch/translate.c | 537
>> +++++++++++++++++++++++++++++++++++++++++++
>> target/loongarch/translate.h | 58 +++++
>> 4 files changed, 633 insertions(+)
>> create mode 100644 target/loongarch/helper.h
>> create mode 100644 target/loongarch/op_helper.c
>> create mode 100644 target/loongarch/translate.c
>> create mode 100644 target/loongarch/translate.h
>
>> +/* 128 and 256 msa vector instructions are not supported yet */
>> +static bool decode_lsx(uint32_t opcode)
>> +{
>> + uint32_t value = (opcode & 0xff000000);
>> +
>> + if ((opcode & 0xf0000000) == 0x70000000) {
>> + return true;
>> + } else if ((opcode & 0xfff00000) == 0x38400000) {
>> + return true;
>> + } else {
>> + switch (value) {
>> + case 0x09000000:
>> + case 0x0a000000:
>> + case 0x0e000000:
>> + case 0x0f000000:
>> + case 0x2c000000:
>> + case 0x30000000:
>> + case 0x31000000:
>> + case 0x32000000:
>> + case 0x33000000:
>> + return true;
>> + }
>> + }
>> + return false;
>> +}
>
> Why not generate that with the decodetree script?
>
These instructions are privileged instructions， user mode does not need these
instructions.
I'll delete these codes.
thanks
