在 2023/4/4 上午4:13, Richard Henderson 写道:
On 4/3/23 05:55, gaosong wrote:
Hi, Richard
在 2023/4/1 下午1:03, Richard Henderson 写道:
On 3/27/23 20:06, Song Gao wrote:
+static void gen_vsat_s(unsigned vece, TCGv_vec t, TCGv_vec a,
int64_t imm)
+{
+ TCGv_vec t1;
+ int64_t max = (1l << imm) - 1;
This needed 1ull, but better to just use
max = MAKE_64BIT_MASK(0, imm - 1);
For the signed version use ll?
I think use MAKE_64BIT_MASK(0, imm -1 ) for the signed version is
not suitable.
int64_t max = MAKE_64BIT_MASK(0, imm);
int64_t min = ~max // or -1 - max
The same problem with imm = 0,
MAKE_64BIT_MASK(0, 0) is always 0xffffffffffffffff. :-)
Thanks.
Song Gao
