From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33279) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bha5a-0002ZW-MU for qemu-devel@nongnu.org; Wed, 07 Sep 2016 06:28:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bha5Y-0004cN-B4 for qemu-devel@nongnu.org; Wed, 07 Sep 2016 06:28:17 -0400 From: David Gibson Date: Wed, 7 Sep 2016 20:28:46 +1000 Message-Id: <1473244183-31510-8-git-send-email-david@gibson.dropbear.id.au> In-Reply-To: <1473244183-31510-1-git-send-email-david@gibson.dropbear.id.au> References: <1473244183-31510-1-git-send-email-david@gibson.dropbear.id.au> Subject: [Qemu-devel] [PULL 07/64] target-ppc: add modulo word operations List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.maydell@linaro.org Cc: agraf@suse.de, thuth@redhat.com, lvivier@redhat.com, benh@kernel.crashing.org, qemu-devel@nongnu.org, qemu-ppc@nongnu.org, Nikunj A Dadhania , David Gibson From: Nikunj A Dadhania Adding following instructions: moduw: Modulo Unsigned Word modsw: Modulo Signed Word Signed-off-by: Nikunj A Dadhania Reviewed-by: Richard Henderson Signed-off-by: David Gibson --- target-ppc/translate.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index c64ce79..e3d9ac3 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1176,6 +1176,52 @@ GEN_DIVE(divde, divde, 0); GEN_DIVE(divdeo, divde, 1); #endif +static inline void gen_op_arith_modw(DisasContext *ctx, TCGv ret, TCGv arg1, + TCGv arg2, int sign) +{ + TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_new_i32(); + + tcg_gen_trunc_tl_i32(t0, arg1); + tcg_gen_trunc_tl_i32(t1, arg2); + if (sign) { + TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv_i32 t3 = tcg_temp_new_i32(); + tcg_gen_setcondi_i32(TCG_COND_EQ, t2, t0, INT_MIN); + tcg_gen_setcondi_i32(TCG_COND_EQ, t3, t1, -1); + tcg_gen_and_i32(t2, t2, t3); + tcg_gen_setcondi_i32(TCG_COND_EQ, t3, t1, 0); + tcg_gen_or_i32(t2, t2, t3); + tcg_gen_movi_i32(t3, 0); + tcg_gen_movcond_i32(TCG_COND_NE, t1, t2, t3, t2, t1); + tcg_gen_rem_i32(t3, t0, t1); + tcg_gen_ext_i32_tl(ret, t3); + tcg_temp_free_i32(t2); + tcg_temp_free_i32(t3); + } else { + TCGv_i32 t2 = tcg_const_i32(1); + TCGv_i32 t3 = tcg_const_i32(0); + tcg_gen_movcond_i32(TCG_COND_EQ, t1, t1, t3, t2, t1); + tcg_gen_remu_i32(t3, t0, t1); + tcg_gen_extu_i32_tl(ret, t3); + tcg_temp_free_i32(t2); + tcg_temp_free_i32(t3); + } + tcg_temp_free_i32(t0); + tcg_temp_free_i32(t1); +} + +#define GEN_INT_ARITH_MODW(name, opc3, sign) \ +static void glue(gen_, name)(DisasContext *ctx) \ +{ \ + gen_op_arith_modw(ctx, cpu_gpr[rD(ctx->opcode)], \ + cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], \ + sign); \ +} + +GEN_INT_ARITH_MODW(moduw, 0x08, 0); +GEN_INT_ARITH_MODW(modsw, 0x18, 1); + /* mulhw mulhw. */ static void gen_mulhw(DisasContext *ctx) { @@ -10242,6 +10288,8 @@ GEN_HANDLER_E(divwe, 0x1F, 0x0B, 0x0D, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divweo, 0x1F, 0x0B, 0x1D, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divweu, 0x1F, 0x0B, 0x0C, 0, PPC_NONE, PPC2_DIVE_ISA206), GEN_HANDLER_E(divweuo, 0x1F, 0x0B, 0x1C, 0, PPC_NONE, PPC2_DIVE_ISA206), +GEN_HANDLER_E(modsw, 0x1F, 0x0B, 0x18, 0x00000001, PPC_NONE, PPC2_ISA300), +GEN_HANDLER_E(moduw, 0x1F, 0x0B, 0x08, 0x00000001, PPC_NONE, PPC2_ISA300), #if defined(TARGET_PPC64) #undef GEN_INT_ARITH_DIVD -- 2.7.4