derek.holloway
7502bf64a4
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566 lines
18 KiB
ArmAsm
566 lines
18 KiB
ArmAsm
/* Tests the multiply instructions.
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Copyright (C) 2017-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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# mach: or1k
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# output: report(0x00000002);\n
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# output: report(0x00000003);\n
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# output: report(0x00000006);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00008001);\n
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# output: report(0x0000fffe);\n
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# output: report(0x7ffffffe);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00008000);\n
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# output: report(0x00010000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00010000);\n
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# output: report(0x00010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffffffe);\n
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# output: report(0xfffffffd);\n
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# output: report(0x00000006);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0xffff0002);\n
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# output: report(0x7ffffffe);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0xffff0000);\n
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# output: report(0x80010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff0000);\n
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# output: report(0xfffeffff);\n
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# output: report(0x00010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0xfffffffd);\n
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# output: report(0xfffffffa);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff8000);\n
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# output: report(0x00010000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0x00010000);\n
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# output: report(0x7fff0000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x80000000);\n
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# output: report(0x00000001);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00008000);\n
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# output: report(0x00010000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000001);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0xfffffffd);\n
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# output: report(0xfffffffa);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0xffff0000);\n
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# output: report(0x80010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000001);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0x00000003);\n
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# output: report(0x00000006);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00010002);\n
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# output: report(0x00007fff);\n
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# output: report(0x7ffffffe);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00020000);\n
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# output: report(0x00004000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00040000);\n
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# output: report(0x00004000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffffffe);\n
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# output: report(0x0000fffd);\n
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# output: report(0x00000006);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffefffe);\n
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# output: report(0x00008001);\n
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# output: report(0x7ffffffe);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffe0000);\n
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# output: report(0x0000bfff);\n
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# output: report(0x80020000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffdfffe);\n
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# output: report(0x00008000);\n
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# output: report(0x00010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0x0000fffd);\n
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# output: report(0xfffffffa);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00010000);\n
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# output: report(0x00008000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffdfffc);\n
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# output: report(0x00004000);\n
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# output: report(0x7fff0000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x80000000);\n
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# output: report(0x00000001);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00020000);\n
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# output: report(0x00004000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000001);\n
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# output: \n
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# output: report(0xfffffffe);\n
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# output: report(0x0000fffd);\n
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# output: report(0x00000006);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffdfffe);\n
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# output: report(0x00008000);\n
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# output: report(0x00010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000001);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0x00000003);\n
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# output: report(0x00000006);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00008001);\n
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# output: report(0x0000fffe);\n
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# output: report(0x7ffffffe);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00008000);\n
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# output: report(0x00010000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00010000);\n
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# output: report(0x00010000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xfffffffe);\n
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# output: report(0xfffffffd);\n
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# output: report(0x00000006);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0xffff0002);\n
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# output: report(0x7ffffffe);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0xffff0000);\n
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# output: report(0x80010000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff0000);\n
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# output: report(0xfffeffff);\n
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# output: report(0x00010000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0xfffffffd);\n
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# output: report(0xfffffffa);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff8000);\n
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# output: report(0x00010000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0x00010000);\n
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# output: report(0x7fff0000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x80000000);\n
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# output: report(0x00000001);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00008000);\n
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# output: report(0x00010000);\n
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# output: report(0x80000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x00000002);\n
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# output: report(0xfffffffd);\n
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# output: report(0xfffffffa);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: \n
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# output: report(0xffff7fff);\n
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# output: report(0xffff0000);\n
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# output: report(0x80010000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: \n
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# output: exit(0)\n
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#include "or1k-asm-test-helpers.h"
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STANDARD_TEST_ENVIRONMENT
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.section .exception_vectors
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/* Range exception. */
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.org 0xb00
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/* The handling is a bit dubious at present. We just patch the
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instruction with l.nop and restart. This will go wrong in branch
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delay slots, but we are not testing that here. */
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l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE
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PUSH r2
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PUSH r3
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/* Save the address of the instruction that caused the problem. */
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MOVE_FROM_SPR r2, SPR_EPCR_BASE
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LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */
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l.sw 0(r2), r3
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POP r3
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POP r2
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l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE
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l.rfe
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.section .text
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start_tests:
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PUSH LINK_REGISTER_R9
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/* Test l.mul */
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/* Multiply two small positive numbers. This should set no flags.
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*/
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TEST_INST_I32_I32 l.mul, 0x00000002, 0x00000003
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/* Multiply two quite large positive numbers. This should set no
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flags */
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TEST_INST_I32_I32 l.mul, 0x00008001, 0x0000fffe
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/* Multiply two slightly too large positive numbers. This should
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set the overflow, but not the carry flag . */
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TEST_INST_I32_I32 l.mul, 0x00008000, 0x00010000
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/* Multiply two large positive numbers. This should set the
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overflow flags (even though the result is not a negative
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number. */
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TEST_INST_I32_I32 l.mul, 0x00010000, 0x00010000
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/* Multiply two small negative numbers. This will set no flags. */
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TEST_INST_I32_I32 l.mul, 0xfffffffe, 0xfffffffd
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/* Multiply two quite large negative numbers. This will no flags. */
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TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0002
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/* Multiply two slightly too large negative numbers. This should
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set the overflow flag. */
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TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0000
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/* Multiply two large negative numbers. This should set the
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both the carry and overflow flags (even though the result is a
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positive number. */
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TEST_INST_I32_I32 l.mul, 0xffff0000, 0xfffeffff
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/* Multiply one small negative number and one small positive
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number. This will set the no flags. */
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TEST_INST_I32_I32 l.mul, 0x00000002, 0xfffffffd
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/* Multiply one quite large negative number and one quite large
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positive number. This will set no flags. */
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TEST_INST_I32_I32 l.mul, 0xffff8000, 0x00010000
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/* Multiply one slightly too large negative number and one slightly
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too large positive number. This should set the overflow flag. */
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TEST_INST_I32_I32 l.mul, 0xffff7fff, 0x00010000
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/* Multiply the largest negative number by positive unity. This
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should set neither carry, nor overflow flag. */
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TEST_INST_I32_I32 l.mul, 0x80000000, 0x00000001
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/* Check that range exceptions are triggered. */
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SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
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/* Check that an overflow alone causes a RANGE Exception. */
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TEST_INST_I32_I32 l.mul, 0x00008000, 0x00010000
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/* Check multiply of a negative and positive does not cause a RANGE
|
|
Exception. */
|
|
TEST_INST_I32_I32 l.mul, 0x00000002, 0xfffffffd
|
|
|
|
/* Check that negative overflow causes a RANGE exception. */
|
|
TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0000
|
|
|
|
CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
|
|
|
|
|
|
/* Test l.muli */
|
|
|
|
/* Multiply two small positive numbers. This should set no flags. */
|
|
TEST_INST_I32_I16 l.muli, 0x00000002, 0x0003
|
|
|
|
/* Multiply two quite large positive numbers. This should set no
|
|
flags */
|
|
TEST_INST_I32_I16 l.muli, 0x00010002, 0x7fff
|
|
|
|
/* Multiply two slightly too large positive numbers. This should
|
|
set the overflow, but not the carry flag. */
|
|
TEST_INST_I32_I16 l.muli, 0x00020000, 0x4000
|
|
|
|
/* Multiply two large positive numbers. This should set the
|
|
overflow flag, even though the result is not a negative number. */
|
|
TEST_INST_I32_I16 l.muli, 0x00040000, 0x4000
|
|
|
|
/* Multiply two small negative numbers. This should set no flags. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffffffe, 0xfffd
|
|
|
|
/* Multiply two quite large negative numbers. This will set no
|
|
flags. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffefffe, 0x8001
|
|
|
|
/* Multiply two slightly too large negative numbers. This should
|
|
set the overflow flag. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffe0000, 0xbfff
|
|
|
|
/* Multiply two large negative numbers. This should set the
|
|
overflow flag, even though the result is a positive number. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffdfffe, 0x8000
|
|
|
|
/* Multiply one small negative number and one small positive
|
|
number. This will set no flags. */
|
|
TEST_INST_I32_I16 l.muli, 0x00000002, 0xfffd
|
|
|
|
/* Multiply one quite large negative number and one quite large
|
|
positive number. This will set no flags. */
|
|
TEST_INST_I32_I16 l.muli, 0x00010000, 0x8000
|
|
|
|
/* Multiply one slightly too large negative number and one slightly
|
|
too large positive number. This will set the overflow flag. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffdfffc, 0x4000
|
|
|
|
/* Multiply the largest negative number by positive unity. Should
|
|
set neither carry, nor overflow flag. */
|
|
TEST_INST_I32_I16 l.muli, 0x80000000, 0x0001
|
|
|
|
/* Check that range exceptions are triggered. */
|
|
|
|
SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
|
|
|
|
/* Check that an overflow alone causes a RANGE Exception. */
|
|
TEST_INST_I32_I16 l.muli, 0x00020000, 0x4000
|
|
|
|
/* Check that two negatives will not cause a RANGE Exception. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffffffe, 0xfffd
|
|
|
|
/* Check that multiply of larget negative and positive numbers causes
|
|
a RANGE exception and overflow. */
|
|
TEST_INST_I32_I16 l.muli, 0xfffdfffe, 0x8000
|
|
|
|
CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
|
|
|
|
/* Test l.mulu */
|
|
|
|
/* Multiply two small positive numbers. This should set no flags. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00000002, 0x00000003
|
|
|
|
/* Multiply two quite large positive numbers. This should set no
|
|
flags. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00008001, 0x0000fffe
|
|
|
|
/* Multiply two slightly too large positive numbers. This will set
|
|
no flags. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00008000, 0x00010000
|
|
|
|
/* Multiply two large positive numbers. This will set the overflow
|
|
flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00010000, 0x00010000
|
|
|
|
/* Multiply two small negative numbers. This will set the
|
|
carry flag, but not the overflow flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0xfffffffe, 0xfffffffd
|
|
|
|
/* Multiply two quite large negative numbers. This will set the
|
|
carry flag, but not the overflow flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0xffff0002
|
|
|
|
/* Multiply two slightly too large negative numbers. This will set
|
|
the carry flag, and not the overflow flag */
|
|
TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0xffff0000
|
|
|
|
/* Multiply two large negative numbers. This will set the both the
|
|
carry flag (even though the result is a positive number.) */
|
|
TEST_INST_I32_I32 l.mulu, 0xffff0000, 0xfffeffff
|
|
|
|
/* Multiply one small negative number and one small positive
|
|
number. This will set the carry flag, but not the overflow
|
|
flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00000002, 0xfffffffd
|
|
|
|
/* Multiply one quite large negative number and one quite large
|
|
positive number. This will set the carry flag, but not the
|
|
overflow flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0xffff8000, 0x00010000
|
|
|
|
/* Multiply one slightly too large negative number and one slightly
|
|
too large positive number. This will set the carry flag, but
|
|
not the overflow flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0x00010000
|
|
|
|
/* Multiply the largest negative number by positive unity. Should
|
|
set neither carry, nor overflow flag. */
|
|
TEST_INST_I32_I32 l.mulu, 0x80000000, 0x00000001
|
|
|
|
/* Check that range exceptions are never triggered. */
|
|
|
|
SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
|
|
|
|
/* Check that what would cause an overflow alone in 2's complement
|
|
does not cause a RANGE Exception. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00008000, 0x00010000
|
|
|
|
/* Check that a carry causes a RANGE Exception. */
|
|
TEST_INST_I32_I32 l.mulu, 0x00000002, 0xfffffffd
|
|
|
|
/* Check that what would cause an overflow and carry in 2's
|
|
complement causes a RANGE Exception. */
|
|
TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0xffff0000
|
|
|
|
CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
|
|
|
|
POP LINK_REGISTER_R9
|
|
RETURN_TO_LINK_REGISTER_R9
|