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/* Tests the multiply instructions.
Copyright (C) 2017-2024 Free Software Foundation, Inc.
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/>. */
# mach: or1k
# output: report(0x00000002);\n
# output: report(0x00000003);\n
# output: report(0x00000006);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00008001);\n
# output: report(0x0000fffe);\n
# output: report(0x7ffffffe);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00008000);\n
# output: report(0x00010000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00010000);\n
# output: report(0x00010000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffffe);\n
# output: report(0xfffffffd);\n
# output: report(0x00000006);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0xffff0002);\n
# output: report(0x7ffffffe);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0xffff0000);\n
# output: report(0x80010000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff0000);\n
# output: report(0xfffeffff);\n
# output: report(0x00010000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0xfffffffd);\n
# output: report(0xfffffffa);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff8000);\n
# output: report(0x00010000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0x00010000);\n
# output: report(0x7fff0000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x80000000);\n
# output: report(0x00000001);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00008000);\n
# output: report(0x00010000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0xfffffffd);\n
# output: report(0xfffffffa);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0xffff0000);\n
# output: report(0x80010000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0x00000003);\n
# output: report(0x00000006);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00010002);\n
# output: report(0x00007fff);\n
# output: report(0x7ffffffe);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00020000);\n
# output: report(0x00004000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00040000);\n
# output: report(0x00004000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffffe);\n
# output: report(0x0000fffd);\n
# output: report(0x00000006);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffefffe);\n
# output: report(0x00008001);\n
# output: report(0x7ffffffe);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffe0000);\n
# output: report(0x0000bfff);\n
# output: report(0x80020000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffdfffe);\n
# output: report(0x00008000);\n
# output: report(0x00010000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0x0000fffd);\n
# output: report(0xfffffffa);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00010000);\n
# output: report(0x00008000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffdfffc);\n
# output: report(0x00004000);\n
# output: report(0x7fff0000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x80000000);\n
# output: report(0x00000001);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00020000);\n
# output: report(0x00004000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0xfffffffe);\n
# output: report(0x0000fffd);\n
# output: report(0x00000006);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffdfffe);\n
# output: report(0x00008000);\n
# output: report(0x00010000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0x00000003);\n
# output: report(0x00000006);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00008001);\n
# output: report(0x0000fffe);\n
# output: report(0x7ffffffe);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00008000);\n
# output: report(0x00010000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00010000);\n
# output: report(0x00010000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffffe);\n
# output: report(0xfffffffd);\n
# output: report(0x00000006);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0xffff0002);\n
# output: report(0x7ffffffe);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0xffff0000);\n
# output: report(0x80010000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff0000);\n
# output: report(0xfffeffff);\n
# output: report(0x00010000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0xfffffffd);\n
# output: report(0xfffffffa);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff8000);\n
# output: report(0x00010000);\n
# output: report(0x80000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0x00010000);\n
# output: report(0x7fff0000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x80000000);\n
# output: report(0x00000001);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00008000);\n
# output: report(0x00010000);\n
# output: report(0x80000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x00000002);\n
# output: report(0xfffffffd);\n
# output: report(0xfffffffa);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0xffff7fff);\n
# output: report(0xffff0000);\n
# output: report(0x80010000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: \n
# output: exit(0)\n
#include "or1k-asm-test-helpers.h"
STANDARD_TEST_ENVIRONMENT
.section .exception_vectors
/* Range exception. */
.org 0xb00
/* The handling is a bit dubious at present. We just patch the
instruction with l.nop and restart. This will go wrong in branch
delay slots, but we are not testing that here. */
l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE
PUSH r2
PUSH r3
/* Save the address of the instruction that caused the problem. */
MOVE_FROM_SPR r2, SPR_EPCR_BASE
LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */
l.sw 0(r2), r3
POP r3
POP r2
l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE
l.rfe
.section .text
start_tests:
PUSH LINK_REGISTER_R9
/* Test l.mul */
/* Multiply two small positive numbers. This should set no flags.
*/
TEST_INST_I32_I32 l.mul, 0x00000002, 0x00000003
/* Multiply two quite large positive numbers. This should set no
flags */
TEST_INST_I32_I32 l.mul, 0x00008001, 0x0000fffe
/* Multiply two slightly too large positive numbers. This should
set the overflow, but not the carry flag . */
TEST_INST_I32_I32 l.mul, 0x00008000, 0x00010000
/* Multiply two large positive numbers. This should set the
overflow flags (even though the result is not a negative
number. */
TEST_INST_I32_I32 l.mul, 0x00010000, 0x00010000
/* Multiply two small negative numbers. This will set no flags. */
TEST_INST_I32_I32 l.mul, 0xfffffffe, 0xfffffffd
/* Multiply two quite large negative numbers. This will no flags. */
TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0002
/* Multiply two slightly too large negative numbers. This should
set the overflow flag. */
TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0000
/* Multiply two large negative numbers. This should set the
both the carry and overflow flags (even though the result is a
positive number. */
TEST_INST_I32_I32 l.mul, 0xffff0000, 0xfffeffff
/* Multiply one small negative number and one small positive
number. This will set the no flags. */
TEST_INST_I32_I32 l.mul, 0x00000002, 0xfffffffd
/* Multiply one quite large negative number and one quite large
positive number. This will set no flags. */
TEST_INST_I32_I32 l.mul, 0xffff8000, 0x00010000
/* Multiply one slightly too large negative number and one slightly
too large positive number. This should set the overflow flag. */
TEST_INST_I32_I32 l.mul, 0xffff7fff, 0x00010000
/* Multiply the largest negative number by positive unity. This
should set neither carry, nor overflow flag. */
TEST_INST_I32_I32 l.mul, 0x80000000, 0x00000001
/* 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_I32 l.mul, 0x00008000, 0x00010000
/* 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
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