From 725bcec2885d4f6df78e24fb54459c9efb97abd5 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Sat, 20 Apr 2013 08:56:17 +0000 Subject: [PATCH] target-ppc: emulate prtyw and prtyd instructions Needed for Power ISA version 2.05 compliance. Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno [agraf: fix 32-bit host compile, simplify code] Signed-off-by: Alexander Graf --- target-ppc/translate.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 4d477d23fb..2fabbaf033 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1467,6 +1467,38 @@ static void gen_popcntd(DisasContext *ctx) } #endif +/* prtyw: PowerPC 2.05 specification */ +static void gen_prtyw(DisasContext *ctx) +{ + TCGv ra = cpu_gpr[rA(ctx->opcode)]; + TCGv rs = cpu_gpr[rS(ctx->opcode)]; + TCGv t0 = tcg_temp_new(); + tcg_gen_shri_tl(t0, rs, 16); + tcg_gen_xor_tl(ra, rs, t0); + tcg_gen_shri_tl(t0, ra, 8); + tcg_gen_xor_tl(ra, ra, t0); + tcg_gen_andi_tl(ra, ra, (target_ulong)0x100000001ULL); + tcg_temp_free(t0); +} + +#if defined(TARGET_PPC64) +/* prtyd: PowerPC 2.05 specification */ +static void gen_prtyd(DisasContext *ctx) +{ + TCGv ra = cpu_gpr[rA(ctx->opcode)]; + TCGv rs = cpu_gpr[rS(ctx->opcode)]; + TCGv t0 = tcg_temp_new(); + tcg_gen_shri_tl(t0, rs, 32); + tcg_gen_xor_tl(ra, rs, t0); + tcg_gen_shri_tl(t0, ra, 16); + tcg_gen_xor_tl(ra, ra, t0); + tcg_gen_shri_tl(t0, ra, 8); + tcg_gen_xor_tl(ra, ra, t0); + tcg_gen_andi_tl(ra, ra, 1); + tcg_temp_free(t0); +} +#endif + #if defined(TARGET_PPC64) /* extsw & extsw. */ GEN_LOGICAL1(extsw, tcg_gen_ext32s_tl, 0x1E, PPC_64B); @@ -8498,9 +8530,11 @@ GEN_HANDLER(xori, 0x1A, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER(xoris, 0x1B, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER(popcntb, 0x1F, 0x03, 0x03, 0x0000F801, PPC_POPCNTB), GEN_HANDLER(popcntw, 0x1F, 0x1A, 0x0b, 0x0000F801, PPC_POPCNTWD), +GEN_HANDLER_E(prtyw, 0x1F, 0x1A, 0x04, 0x0000F801, PPC_NONE, PPC2_ISA205), #if defined(TARGET_PPC64) 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), #endif GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),