From 461aa6783eec27f209b026c6647fc7a83b2997cd Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 24 Aug 2015 08:56:45 -0700 Subject: target-tilegx: Handle v1shl, v1shru, v1shrs Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target-tilegx/simd_helper.c | 55 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 target-tilegx/simd_helper.c (limited to 'target-tilegx/simd_helper.c') diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c new file mode 100644 index 0000000000..b9319292f3 --- /dev/null +++ b/target-tilegx/simd_helper.c @@ -0,0 +1,55 @@ +/* + * QEMU TILE-Gx helpers + * + * Copyright (c) 2015 Chen Gang + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + * + */ + +#include "cpu.h" +#include "qemu-common.h" +#include "exec/helper-proto.h" + + +uint64_t helper_v1shl(uint64_t a, uint64_t b) +{ + uint64_t m; + + b &= 7; + m = 0x0101010101010101ULL * (0xff >> b); + return (a & m) << b; +} + +uint64_t helper_v1shru(uint64_t a, uint64_t b) +{ + uint64_t m; + + b &= 7; + m = 0x0101010101010101ULL * ((0xff << b) & 0xff); + return (a & m) >> b; +} + +uint64_t helper_v1shrs(uint64_t a, uint64_t b) +{ + uint64_t r = 0; + int i; + + b &= 7; + for (i = 0; i < 64; i += 8) { + int64_t ae = (int8_t)(a >> i); + r |= ((ae >> b) & 0xff) << i; + } + return r; +} -- cgit 1.4.1