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[/] [openrisc/] [trunk/] [or1ksim/] [testsuite/] [test-code-or1k/] [inst-set-test/] [is-find-test.S] - Blame information for rev 352

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1 115 jeremybenn
/* is-find.test.S. l.ff1 and l.fl1 instruction test of Or1ksim
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 *
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 * Copyright (C) 1999-2006 OpenCores
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 * Copyright (C) 2010 Embecosm Limited
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 *
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 * Contributors various OpenCores participants
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 * Contributor Jeremy Bennett 
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 *
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 * This file is part of OpenRISC 1000 Architectural Simulator.
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 *
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License as published by the Free
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 * Software Foundation; either version 3 of the License, or (at your option)
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 * any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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 * more details.
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 *
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 * You should have received a copy of the GNU General Public License along
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 * with this program.  If not, see .
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 */
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/* ----------------------------------------------------------------------------
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 * Coding conventions are described in inst-set-test.S
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 * ------------------------------------------------------------------------- */
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/* ----------------------------------------------------------------------------
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 * Test coverage
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 *
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 * The l.ff1 and l.fl1 should fine the first and last bits in a register
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 * respectively.
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 *
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 * Problems in this area were reported in Bug 1772. Having fixed the problem,
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 * this is (in good software engineering style), a  regression test to go with
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 * the fix.
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 *
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 * This is not a comprehensive test of any instruction (yet).
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 *
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 * Of course what is really needed is a comprehensive instruction test...
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 * ------------------------------------------------------------------------- */
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#include "inst-set-test.h"
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/* ----------------------------------------------------------------------------
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 * A macro to carry out a test of find
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 *
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 * Arguments
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 *   op:        First operand value
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 *   res:       Expected result
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 * ------------------------------------------------------------------------- */
54 118 jeremybenn
#define TEST_FF1(op, res)                                                \
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        LOAD_CONST (r4,33)              /* Invalid result */            ;\
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        LOAD_CONST (r5,op)              /* Load number to analyse */    ;\
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        l.ff1   r4,r5                                                   ;\
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        PUSH    (r4)                    /* Save for later */            ;\
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                                                                        ;\
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        PUTS ("  ff1 (0x")                                              ;\
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        PUTH (op)                                                       ;\
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        PUTS (") = 0x")                                                 ;\
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        PUTHQ (res)                                                     ;\
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        PUTS (": ")                                                     ;\
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                                                                        ;\
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        CHECK_RES1 (r4, res)
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69 118 jeremybenn
/* ----------------------------------------------------------------------------
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 * A macro to carry out a test of find
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 *
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 * Arguments
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 *   op:        First operand value
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 *   res:       Expected result
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 * ------------------------------------------------------------------------- */
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#define TEST_FL1(op, res)                                                \
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        LOAD_CONST (r4,33)              /* Invalid result */            ;\
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        LOAD_CONST (r5,op)              /* Load number to analyse */    ;\
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        l.fl1   r4,r5                                                   ;\
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        PUSH    (r4)                    /* Save for later */            ;\
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                                                                        ;\
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        PUTS ("  fl1 (0x")                                              ;\
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        PUTH (op)                                                       ;\
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        PUTS (") = 0x")                                                 ;\
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        PUTHQ (res)                                                     ;\
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        PUTS (": ")                                                     ;\
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                                                                        ;\
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        CHECK_RES1 (r4, res)
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/* ----------------------------------------------------------------------------
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 * Start of code
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 * ------------------------------------------------------------------------- */
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        .section .text
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        .global _start
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_start:
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/* ----------------------------------------------------------------------------
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 * Test of find first 1, l.ff1
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 * ------------------------------------------------------------------------- */
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_ff1:
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        LOAD_STR (r3, "l.ff1\n")
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        l.jal   _puts
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        l.nop
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        /* Try a range of candidates. */
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        TEST_FF1 (0x00000001,  1)
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        TEST_FF1 (0x80000000, 32)
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        TEST_FF1 (0x55555555,  1)
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        TEST_FF1 (0xaaaaaaaa,  2)
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        TEST_FF1 (0x00018000, 16)
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        TEST_FF1 (0xc0000000, 31)
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        TEST_FF1 (0x00000000,  0)
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/* ----------------------------------------------------------------------------
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 * Test of find first 1, l.fl1
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 * ------------------------------------------------------------------------- */
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_fl1:
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        LOAD_STR (r3, "l.fl1\n")
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        l.jal   _puts
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        l.nop
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        /* Try a range of candidates. */
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        TEST_FL1 (0x00000001,  1)
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        TEST_FL1 (0x80000000, 32)
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        TEST_FL1 (0x55555555, 31)
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        TEST_FL1 (0xaaaaaaaa, 32)
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        TEST_FL1 (0x00018000, 17)
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        TEST_FL1 (0xc0000000, 32)
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        TEST_FL1 (0x00000000,  0)
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/* ----------------------------------------------------------------------------
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 * All done
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 * ------------------------------------------------------------------------- */
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_exit:
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        LOAD_STR (r3, "Test completed\n")
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        l.jal   _puts
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        l.nop
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140 118 jeremybenn
        TEST_EXIT

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