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target-i386: add SSE4a instruction support 

This adds support for the AMD Phenom/Barcelona's SSE4a instructions.
Those include insertq and extrq, which are doing shift and mask on
XMM registers, in two versions (immediate shift/length values and
stored in another XMM register).
Additionally it implements movntss, movntsd, which are scalar
non-temporal stores (avoiding cache trashing). These are implemented
as normal stores, though.
SSE4a is guarded by the SSE4A CPUID bit (Fn8000_0001:ECX[6]).

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Andre Przywara 2009-09-19 00:30:48 +02:00 committed by Aurelien Jarno
parent ccd59d09a9
commit d9f4bb27db
3 changed files with 85 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
target-i386/ops_sse.h
View File

@ -802,6 +802,50 @@ void helper_rcpss(XMMReg *d, XMMReg *s)
d->XMM_S(0) = approx_rcp(s->XMM_S(0));
}
static inline uint64_t helper_extrq(uint64_t src, int shift, int len)
{
uint64_t mask;
if (len == 0) {
mask = ~0LL;
} else {
mask = (1ULL << len) - 1;
}
return (src >> shift) & mask;
}
void helper_extrq_r(XMMReg *d, XMMReg *s)
{
d->XMM_Q(0) = helper_extrq(d->XMM_Q(0), s->XMM_B(1), s->XMM_B(0));
}
void helper_extrq_i(XMMReg *d, int index, int length)
{
d->XMM_Q(0) = helper_extrq(d->XMM_Q(0), index, length);
}
static inline uint64_t helper_insertq(uint64_t src, int shift, int len)
{
uint64_t mask;
if (len == 0) {
mask = ~0ULL;
} else {
mask = (1ULL << len) - 1;
}
return (src & ~(mask << shift)) | ((src & mask) << shift);
}
void helper_insertq_r(XMMReg *d, XMMReg *s)
{
d->XMM_Q(0) = helper_insertq(s->XMM_Q(0), s->XMM_B(9), s->XMM_B(8));
}
void helper_insertq_i(XMMReg *d, int index, int length)
{
d->XMM_Q(0) = helper_insertq(d->XMM_Q(0), index, length);
}
void helper_haddps(XMMReg *d, XMMReg *s)
{
XMMReg r;

4
target-i386/ops_sse_header.h
View File

@ -187,6 +187,10 @@ DEF_HELPER_2(rsqrtps, void, XMMReg, XMMReg)
DEF_HELPER_2(rsqrtss, void, XMMReg, XMMReg)
DEF_HELPER_2(rcpps, void, XMMReg, XMMReg)
DEF_HELPER_2(rcpss, void, XMMReg, XMMReg)
DEF_HELPER_2(extrq_r, void, XMMReg, XMMReg)
DEF_HELPER_3(extrq_i, void, XMMReg, int, int)
DEF_HELPER_2(insertq_r, void, XMMReg, XMMReg)
DEF_HELPER_3(insertq_i, void, XMMReg, int, int)
DEF_HELPER_2(haddps, void, XMMReg, XMMReg)
DEF_HELPER_2(haddpd, void, XMMReg, XMMReg)
DEF_HELPER_2(hsubps, void, XMMReg, XMMReg)

39
target-i386/translate.c
View File

@ -2826,7 +2826,7 @@ static void *sse_op_table1[256][4] = {
[0x28] = { SSE_SPECIAL, SSE_SPECIAL }, /* movaps, movapd */
[0x29] = { SSE_SPECIAL, SSE_SPECIAL }, /* movaps, movapd */
[0x2a] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvtpi2ps, cvtpi2pd, cvtsi2ss, cvtsi2sd */
[0x2b] = { SSE_SPECIAL, SSE_SPECIAL }, /* movntps, movntpd */
[0x2b] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movntps, movntpd, movntss, movntsd */
[0x2c] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvttps2pi, cvttpd2pi, cvttsd2si, cvttss2si */
[0x2d] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvtps2pi, cvtpd2pi, cvtsd2si, cvtss2si */
[0x2e] = { gen_helper_ucomiss, gen_helper_ucomisd },
@ -2883,6 +2883,8 @@ static void *sse_op_table1[256][4] = {
[0x75] = MMX_OP2(pcmpeqw),
[0x76] = MMX_OP2(pcmpeql),
[0x77] = { SSE_DUMMY }, /* emms */
[0x78] = { NULL, SSE_SPECIAL, NULL, SSE_SPECIAL }, /* extrq_i, insertq_i */
[0x79] = { NULL, gen_helper_extrq_r, NULL, gen_helper_insertq_r },
[0x7c] = { NULL, gen_helper_haddpd, NULL, gen_helper_haddps },
[0x7d] = { NULL, gen_helper_hsubpd, NULL, gen_helper_hsubps },
[0x7e] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movd, movd, , movq */
@ -3169,6 +3171,20 @@ static void gen_sse(DisasContext *s, int b, target_ulong pc_start, int rex_r)
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_sto_env_A0(s->mem_index, offsetof(CPUX86State,xmm_regs[reg]));
break;
case 0x22b: /* movntss */
case 0x32b: /* movntsd */
if (mod == 3)
goto illegal_op;
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
if (b1 & 1) {
gen_stq_env_A0(s->mem_index, offsetof(CPUX86State,
xmm_regs[reg]));
} else {
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(0)));
gen_op_st_T0_A0(OT_LONG + s->mem_index);
}
break;
case 0x6e: /* movd mm, ea */
#ifdef TARGET_X86_64
if (s->dflag == 2) {
@ -3324,6 +3340,25 @@ static void gen_sse(DisasContext *s, int b, target_ulong pc_start, int rex_r)
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(2)),
offsetof(CPUX86State,xmm_regs[reg].XMM_L(3)));
break;
case 0x178:
case 0x378:
{
int bit_index, field_length;
if (b1 == 1 && reg != 0)
goto illegal_op;
field_length = ldub_code(s->pc++) & 0x3F;
bit_index = ldub_code(s->pc++) & 0x3F;
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,xmm_regs[reg]));
if (b1 == 1)
gen_helper_extrq_i(cpu_ptr0, tcg_const_i32(bit_index),
tcg_const_i32(field_length));
else
gen_helper_insertq_i(cpu_ptr0, tcg_const_i32(bit_index),
tcg_const_i32(field_length));
}
break;
case 0x7e: /* movd ea, mm */
#ifdef TARGET_X86_64
if (s->dflag == 2) {
@ -7555,7 +7590,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0x110 ... 0x117:
case 0x128 ... 0x12f:
case 0x138 ... 0x13a:
case 0x150 ... 0x177:
case 0x150 ... 0x179:
case 0x17c ... 0x17f:
case 0x1c2:
case 0x1c4 ... 0x1c6: