From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47038) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gEFs6-0006zY-FE for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:42:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gEFs3-00062G-5L for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:42:30 -0400 Received: from pio-pvt-msa2.bahnhof.se ([79.136.2.41]:47414) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gEFs2-00061x-Sa for qemu-devel@nongnu.org; Sun, 21 Oct 2018 11:42:27 -0400 Date: Sun, 21 Oct 2018 17:42:19 +0200 From: Fredrik Noring Message-ID: <76c3c6692e62384c2a0c8b81e7142cdb039ef412.1540134919.git.noring@nocrew.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Subject: [Qemu-devel] [PATCH v8 32/38] tests/tcg/mips: Test R5900 DIVU1 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aleksandar Markovic , "Maciej W. Rozycki" , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Cc: Richard Henderson , Aurelien Jarno , Petar Jovanovic , Peter Maydell , =?utf-8?Q?J=C3=BCrgen?= Urban , qemu-devel@nongnu.org Signed-off-by: Fredrik Noring --- tests/tcg/mips/mipsr5900/Makefile | 1 + tests/tcg/mips/mipsr5900/divu1.c | 48 +++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) create mode 100644 tests/tcg/mips/mipsr5900/divu1.c diff --git a/tests/tcg/mips/mipsr5900/Makefile b/tests/tcg/mips/mipsr5900/Makefile index 757eb83862..a1c388bc3c 100644 --- a/tests/tcg/mips/mipsr5900/Makefile +++ b/tests/tcg/mips/mipsr5900/Makefile @@ -9,6 +9,7 @@ CC = $(CROSS)gcc CFLAGS = -Wall -mabi=32 -march=r5900 -static TESTCASES = div1.tst +TESTCASES += divu1.tst TESTCASES += mflohi1.tst TESTCASES += mtlohi1.tst TESTCASES += mult.tst diff --git a/tests/tcg/mips/mipsr5900/divu1.c b/tests/tcg/mips/mipsr5900/divu1.c new file mode 100644 index 0000000000..72aeed31de --- /dev/null +++ b/tests/tcg/mips/mipsr5900/divu1.c @@ -0,0 +1,48 @@ +/* + * Test R5900-specific DIVU1. + */ + +#include +#include +#include + +struct quotient_remainder { uint32_t quotient, remainder; }; + +static struct quotient_remainder divu1(uint32_t rs, uint32_t rt) +{ + uint32_t lo, hi; + + __asm__ __volatile__ ( + " divu1 $0, %2, %3\n" + " mflo1 %0\n" + " mfhi1 %1\n" + : "=r" (lo), "=r" (hi) + : "r" (rs), "r" (rt)); + + assert(rs / rt == lo); + assert(rs % rt == hi); + + return (struct quotient_remainder) { .quotient = lo, .remainder = hi }; +} + +static void verify_divu1(uint32_t rs, uint32_t rt, + uint32_t expected_quotient, + uint32_t expected_remainder) +{ + struct quotient_remainder qr = divu1(rs, rt); + + assert(qr.quotient == expected_quotient); + assert(qr.remainder == expected_remainder); +} + +int main() +{ + verify_divu1(0, 1, 0, 0); + verify_divu1(1, 1, 1, 0); + verify_divu1(1, 2, 0, 1); + verify_divu1(17, 19, 0, 17); + verify_divu1(19, 17, 1, 2); + verify_divu1(77773, 101, 770, 3); + + return 0; +} -- 2.18.1