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/* Tests the divide 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(0x0000000c);\n
# output: report(0x00000003);\n
# output: report(0x00000004);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000b);\n
# output: report(0x00000003);\n
# output: report(0x00000003);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0xfffffffd);\n
# output: report(0x00000004);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff5);\n
# output: report(0xfffffffd);\n
# output: report(0x00000003);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0x00000003);\n
# output: report(0xfffffffc);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff5);\n
# output: report(0x00000003);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0xfffffffd);\n
# output: report(0xfffffffc);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000b);\n
# output: report(0xfffffffd);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0x00000000);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0x00000000);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0x00000000);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0x00000000);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0x00000003);\n
# output: report(0x00000004);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000b);\n
# output: report(0x00000003);\n
# output: report(0x00000003);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff5);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0x00000003);\n
# output: report(0x55555551);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff5);\n
# output: report(0x00000003);\n
# output: report(0x55555551);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000b);\n
# output: report(0xfffffffd);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x0000000c);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: \n
# output: report(0xfffffff4);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\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
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.div */
/* Divide two positive numbers and check rounding. Should set no
flags. */
TEST_INST_I32_I32 l.div, 0x0000000c, 0x00000003 /* 12 / 3 = 4 */
TEST_INST_I32_I32 l.div, 0x0000000b, 0x00000003 /* 11 / 3 = 3 */
/* Divide two negative numbers and check rounding. Should set no
flags. */
TEST_INST_I32_I32 l.div, 0xfffffff4, 0xfffffffd
TEST_INST_I32_I32 l.div, 0xfffffff5, 0xfffffffd
/* Divide a negative number by a positive number and check
rounding. Should set no flags. */
TEST_INST_I32_I32 l.div, 0xfffffff4, 0x00000003
TEST_INST_I32_I32 l.div, 0xfffffff5, 0x00000003
/* Divide a positive number by a negative number and check
rounding. Should set no flags. */
TEST_INST_I32_I32 l.div, 0x0000000c, 0xfffffffd
TEST_INST_I32_I32 l.div, 0x0000000b, 0xfffffffd
/* Divide by zero. This will set the overflow flag. */
TEST_INST_I32_I32 l.div, 0x0000000c, 0x00000000
TEST_INST_I32_I32 l.div, 0xfffffff4, 0x00000000
/* Check that range exceptions are triggered. */
SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
/* Divide by zero. This will set the overflow flag and trigger an
exception. */
TEST_INST_I32_I32 l.div, 0x0000000c, 0x00000000
TEST_INST_I32_I32 l.div, 0xfffffff4, 0x00000000
CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
/* Test l.divu */
/* Divide two positive numbers and check rounding. Should set no
flags. */
TEST_INST_I32_I32 l.divu, 0x0000000c, 0x00000003
TEST_INST_I32_I32 l.divu, 0x0000000b, 0x00000003
/* Divide two numbers that would be negative under 2's complement
and check rounding. Should set no flags. */
TEST_INST_I32_I32 l.divu, 0xfffffff4, 0xfffffffd
TEST_INST_I32_I32 l.divu, 0xfffffff5, 0xfffffffd
/* Divide a number that would be negative under 2's complement by a
number that would be positive under 2's complement and check
rounding. This should set no flags. */
TEST_INST_I32_I32 l.divu, 0xfffffff4, 0x00000003
TEST_INST_I32_I32 l.divu, 0xfffffff5, 0x00000003
/* Divide a number that would be positive under 2's complement by a
number that would be negative under 2's complement and check
rounding. This should set no flags. */
TEST_INST_I32_I32 l.divu, 0x0000000c, 0xfffffffd
TEST_INST_I32_I32 l.divu, 0x0000000b, 0xfffffffd
/* Divide by zero. This will set the carry flag. */
TEST_INST_I32_I32 l.divu, 0x0000000c, 0x00000000
TEST_INST_I32_I32 l.divu, 0xfffffff4, 0x00000000
/* Check that range exceptions are triggered. */
SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
/* Divide by zero. This will set the carry flag and trigger an
exception. */
TEST_INST_I32_I32 l.divu, 0x0000000c, 0x00000000
TEST_INST_I32_I32 l.divu, 0xfffffff4, 0x00000000
CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3
POP LINK_REGISTER_R9
RETURN_TO_LINK_REGISTER_R9
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