On 2/28/22 00:14, Thomas Huth wrote:
Full patch can be seen here:
https://gitlab.com/thuth/qemu/-/commit/38af118ea2fef0c473
static inline void mvcrl_8(const char *dst, const char *src)
{
asm volatile (
"llill %%r0, 8\n"
".insn sse, 0xE50A00000000, 0(%[dst]), 0(%[src])"
: : [dst] "d" (dst), [src] "d" (src)
: "memory");
}
Need clobber of r0 here.
#define Fi3(S, ASM) uint64_t S(uint64_t a, uint64_t b, uint64_t c) \
{ \
uint64_t res = 0; \
asm ( \
"lg %%r2, %[a]\n" \
"lg %%r3, %[b]\n" \
"lg %%r0, %[c]\n" \
"ltgr %%r0, %%r0\n" \
ASM \
"stg %%r0, %[res] " \
: [res] "=m" (res) \
: [a] "m" (a), \
[b] "m" (b), \
[c] "m" (c) \
: "r0", "r2", \
"r3", "r4" \
); \
return res; \
}
Fi3 (_selre, ".insn rrf, 0xB9F00000, %%r0, %%r3, %%r2, 8\n")
Fi3 (_selgrz, ".insn rrf, 0xB9E30000, %%r0, %%r3, %%r2, 8\n")
Fi3 (_selfhrnz, ".insn rrf, 0xB9C00000, %%r0, %%r3, %%r2, 7\n")
This isn't actively broken, but could use the same treatment as NCRK et al:
#define Fi3(S, ASM) uint64_t S(uint64_t a, uint64_t b, uint64_t c) \
{ \
uint64_t res; \
asm("ltgr %[c], %[c]\n\t" ASM
: [res] "=&r" (res)
: [a] "r" (a), [b] "r" (b), [c] "r" (c)
: "cc");
return res;
}
Fi3(_selre, ".insn rrf, 0xB9F00000, %[res], %[a], %[b], 8")
etc.
r~
