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target-ppc: Add ISA2.06 bpermd Instruction 

This patch adds the Bit Permute Doubleword (bpermd) instruction,
which was introduced in Power ISA 2.06 as part of the base 64-bit
architecture.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
pull/7/head
Tom Musta 13 years ago
committed by Alexander Graf
parent
7ee19fb9d6
commit
86ba37edcb
5 changed files with 41 additions and 5 deletions
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  1. 4
      target-ppc/cpu.h
  2. 1
      target-ppc/helper.h
  3. 20
      target-ppc/int_helper.c
  4. 10
      target-ppc/translate.c
  5. 11
      target-ppc/translate_init.c

4
target-ppc/cpu.h
View File

@ -1877,9 +1877,11 @@ enum {
PPC2_ISA205 = 0x0000000000000020ULL,
/* VSX additions in ISA 2.07 */
PPC2_VSX207 = 0x0000000000000040ULL,
/* ISA 2.06B bpermd */
PPC2_PERM_ISA206 = 0x0000000000000080ULL,
#define PPC_TCG_INSNS2 (PPC2_BOOKE206 | PPC2_VSX | PPC2_PRCNTL | PPC2_DBRX | \
PPC2_ISA205 | PPC2_VSX207)
PPC2_ISA205 | PPC2_VSX207 | PPC2_PERM_ISA206)
};
/*****************************************************************************/

1
target-ppc/helper.h
View File

@ -41,6 +41,7 @@ DEF_HELPER_3(sraw, tl, env, tl, tl)
#if defined(TARGET_PPC64)
DEF_HELPER_FLAGS_1(cntlzd, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_1(popcntd, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_2(bpermd, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_3(srad, tl, env, tl, tl)
#endif

20
target-ppc/int_helper.c
View File

@ -53,6 +53,26 @@ target_ulong helper_cntlzd(target_ulong t)
}
#endif
#if defined(TARGET_PPC64)
uint64_t helper_bpermd(uint64_t rs, uint64_t rb)
{
int i;
uint64_t ra = 0;
for (i = 0; i < 8; i++) {
int index = (rs >> (i*8)) & 0xFF;
if (index < 64) {
if (rb & (1ull << (63-index))) {
ra |= 1 << i;
}
}
}
return ra;
}
#endif
target_ulong helper_cmpb(target_ulong rs, target_ulong rb)
{
target_ulong mask = 0xff;

10
target-ppc/translate.c
View File

@ -1524,6 +1524,15 @@ static void gen_prtyd(DisasContext *ctx)
}
#endif
#if defined(TARGET_PPC64)
/* bpermd */
static void gen_bpermd(DisasContext *ctx)
{
gen_helper_bpermd(cpu_gpr[rA(ctx->opcode)],
cpu_gpr[rS(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
}
#endif
#if defined(TARGET_PPC64)
/* extsw & extsw. */
GEN_LOGICAL1(extsw, tcg_gen_ext32s_tl, 0x1E, PPC_64B);
@ -9433,6 +9442,7 @@ GEN_HANDLER_E(prtyw, 0x1F, 0x1A, 0x04, 0x0000F801, PPC_NONE, PPC2_ISA205),
GEN_HANDLER(popcntd, 0x1F, 0x1A, 0x0F, 0x0000F801, PPC_POPCNTWD),
GEN_HANDLER(cntlzd, 0x1F, 0x1A, 0x01, 0x00000000, PPC_64B),
GEN_HANDLER_E(prtyd, 0x1F, 0x1A, 0x05, 0x0000F801, PPC_NONE, PPC2_ISA205),
GEN_HANDLER_E(bpermd, 0x1F, 0x1C, 0x07, 0x00000001, PPC_NONE, PPC2_PERM_ISA206),
#endif
GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),
GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),

11
target-ppc/translate_init.c
View File

@ -4722,7 +4722,7 @@ POWERPC_FAMILY(e5500)(ObjectClass *oc, void *data)
PPC_FLOAT_STFIWX | PPC_WAIT |
PPC_MEM_TLBSYNC | PPC_TLBIVAX | PPC_MEM_SYNC |
PPC_64B | PPC_POPCNTB | PPC_POPCNTWD;
pcc->insns_flags2 = PPC2_BOOKE206 | PPC2_PRCNTL;
pcc->insns_flags2 = PPC2_BOOKE206 | PPC2_PRCNTL | PPC2_PERM_ISA206;
pcc->msr_mask = 0x000000009402FB36ULL;
pcc->mmu_model = POWERPC_MMU_BOOKE206;
pcc->excp_model = POWERPC_EXCP_BOOKE;
@ -7068,7 +7068,8 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
PPC_64B | PPC_ALTIVEC |
PPC_SEGMENT_64B | PPC_SLBI |
PPC_POPCNTB | PPC_POPCNTWD;
pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205;
pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205 |
PPC2_PERM_ISA206;
pcc->msr_mask = 0x800000000284FF37ULL;
pcc->mmu_model = POWERPC_MMU_2_06;
#if defined(CONFIG_SOFTMMU)
@ -7106,7 +7107,8 @@ POWERPC_FAMILY(POWER7P)(ObjectClass *oc, void *data)
PPC_64B | PPC_ALTIVEC |
PPC_SEGMENT_64B | PPC_SLBI |
PPC_POPCNTB | PPC_POPCNTWD;
pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205;
pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205 |
PPC2_PERM_ISA206;
pcc->msr_mask = 0x800000000204FF37ULL;
pcc->mmu_model = POWERPC_MMU_2_06;
#if defined(CONFIG_SOFTMMU)
@ -7144,7 +7146,8 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
PPC_64B | PPC_ALTIVEC |
PPC_SEGMENT_64B | PPC_SLBI |
PPC_POPCNTB | PPC_POPCNTWD;
pcc->insns_flags2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX;
pcc->insns_flags2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX |
PPC2_PERM_ISA206;
pcc->msr_mask = 0x800000000284FF36ULL;
pcc->mmu_model = POWERPC_MMU_2_06;
#if defined(CONFIG_SOFTMMU)

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