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[/] [openrisc/] [trunk/] [or1ksim/] [testsuite/] [test-code-or1k/] [inst-set-test/] [is-find-test.S] - Rev 588
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/* is-find.test.S. l.ff1 and l.fl1 instruction test of Or1ksim
*
* Copyright (C) 1999-2006 OpenCores
* Copyright (C) 2010 Embecosm Limited
*
* Contributors various OpenCores participants
* Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
*
* This file is part of OpenRISC 1000 Architectural Simulator.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version.
*
* This program 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http: www.gnu.org/licenses/>.
*/
/* ----------------------------------------------------------------------------
* Coding conventions are described in inst-set-test.S
* ------------------------------------------------------------------------- */
/* ----------------------------------------------------------------------------
* Test coverage
*
* The l.ff1 and l.fl1 should fine the first and last bits in a register
* respectively.
*
* Problems in this area were reported in Bug 1772. Having fixed the problem,
* this is (in good software engineering style), a regression test to go with
* the fix.
*
* This is not a comprehensive test of any instruction (yet).
*
* Of course what is really needed is a comprehensive instruction test...
* ------------------------------------------------------------------------- */
#include "inst-set-test.h"
/* ----------------------------------------------------------------------------
* A macro to carry out a test of find
*
* Arguments
* op: First operand value
* res: Expected result
* ------------------------------------------------------------------------- */
#define TEST_FF1(op, res) \
LOAD_CONST (r4,33) /* Invalid result */ ;\
LOAD_CONST (r5,op) /* Load number to analyse */ ;\
l.ff1 r4,r5 ;\
PUSH (r4) /* Save for later */ ;\
;\
PUTS (" ff1 (0x") ;\
PUTH (op) ;\
PUTS (") = 0x") ;\
PUTHQ (res) ;\
PUTS (": ") ;\
;\
CHECK_RES1 (r4, res)
/* ----------------------------------------------------------------------------
* A macro to carry out a test of find
*
* Arguments
* op: First operand value
* res: Expected result
* ------------------------------------------------------------------------- */
#define TEST_FL1(op, res) \
LOAD_CONST (r4,33) /* Invalid result */ ;\
LOAD_CONST (r5,op) /* Load number to analyse */ ;\
l.fl1 r4,r5 ;\
PUSH (r4) /* Save for later */ ;\
;\
PUTS (" fl1 (0x") ;\
PUTH (op) ;\
PUTS (") = 0x") ;\
PUTHQ (res) ;\
PUTS (": ") ;\
;\
CHECK_RES1 (r4, res)
/* ----------------------------------------------------------------------------
* Start of code
* ------------------------------------------------------------------------- */
.section .text
.global _start
_start:
/* ----------------------------------------------------------------------------
* Test of find first 1, l.ff1
* ------------------------------------------------------------------------- */
_ff1:
LOAD_STR (r3, "l.ff1\n")
l.jal _puts
l.nop
/* Try a range of candidates. */
TEST_FF1 (0x00000001, 1)
TEST_FF1 (0x80000000, 32)
TEST_FF1 (0x55555555, 1)
TEST_FF1 (0xaaaaaaaa, 2)
TEST_FF1 (0x00018000, 16)
TEST_FF1 (0xc0000000, 31)
TEST_FF1 (0x00000000, 0)
/* ----------------------------------------------------------------------------
* Test of find first 1, l.fl1
* ------------------------------------------------------------------------- */
_fl1:
LOAD_STR (r3, "l.fl1\n")
l.jal _puts
l.nop
/* Try a range of candidates. */
TEST_FL1 (0x00000001, 1)
TEST_FL1 (0x80000000, 32)
TEST_FL1 (0x55555555, 31)
TEST_FL1 (0xaaaaaaaa, 32)
TEST_FL1 (0x00018000, 17)
TEST_FL1 (0xc0000000, 32)
TEST_FL1 (0x00000000, 0)
/* ----------------------------------------------------------------------------
* All done
* ------------------------------------------------------------------------- */
_exit:
LOAD_STR (r3, "Test completed\n")
l.jal _puts
l.nop
TEST_EXIT
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