/* 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 . */ # 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