/* Tests instructions l.add, l.addc, l.addi and l.addic. 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(0x00000001);\n # output: report(0x00000002);\n # output: report(0x00000003);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x00000001);\n # output: report(0x00000002);\n # output: report(0x00000003);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xffffffff);\n # output: report(0xfffffffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x3fffffff);\n # output: report(0x7fffffff);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x40000000);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0xc0000000);\n # output: report(0xc0000000);\n # output: report(0x80000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xbfffffff);\n # output: report(0xbfffffff);\n # output: report(0x7ffffffe);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x40000000);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0xffffffff);\n # output: report(0xfffffffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xbfffffff);\n # output: report(0xbfffffff);\n # output: report(0x7ffffffe);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0x00000001);\n # output: report(0x00000002);\n # output: report(0x00000003);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xffffffff);\n # output: report(0xfffffffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x3fffffff);\n # output: report(0x7fffffff);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x3fffffff);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x40000000);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0xffffffff);\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(0x00000000);\n # output: report(0xffffffff);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xc0000000);\n # output: report(0xc0000000);\n # output: report(0x80000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xc0000000);\n # output: report(0xbfffffff);\n # output: report(0x80000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xbfffffff);\n # output: report(0xbfffffff);\n # output: report(0x7ffffffe);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0x40000000);\n # output: report(0x40000000);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0x40000000);\n # output: report(0x3fffffff);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0xffffffff);\n # output: report(0xfffffffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x00000000);\n # output: report(0xffffffff);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xbfffffff);\n # output: report(0xbfffffff);\n # output: report(0x7ffffffe);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0x00000001);\n # output: report(0x00000002);\n # output: report(0x00000003);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x00000001);\n # output: report(0x00000002);\n # output: report(0x00000003);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xffffffff);\n # output: report(0x0000fffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fff8000);\n # output: report(0x00007fff);\n # output: report(0x7fffffff);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fffc000);\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(0x80008000);\n # output: report(0x00008000);\n # output: report(0x80000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x80007fff);\n # output: report(0x00008000);\n # output: report(0x7fffffff);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fffc000);\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(0xffffffff);\n # output: report(0x0000fffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x80007fff);\n # output: report(0x00008000);\n # output: report(0x7fffffff);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0x00000001);\n # output: report(0x00000002);\n # output: report(0x00000003);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0xffffffff);\n # output: report(0x0000fffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fff8000);\n # output: report(0x00007fff);\n # output: report(0x7fffffff);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fff8000);\n # output: report(0x00007fff);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fffc000);\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(0xffffffff);\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(0x00000000);\n # output: report(0x0000ffff);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x80008000);\n # output: report(0x00008000);\n # output: report(0x80000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x80007fff);\n # output: report(0x00008000);\n # output: report(0x80000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x80007fff);\n # output: report(0x00008000);\n # output: report(0x7fffffff);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: \n # output: report(0x7fffc000);\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(0x7fffc000);\n # output: report(0x00003fff);\n # output: report(0x80000000);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000001);\n # output: \n # output: report(0xffffffff);\n # output: report(0x0000fffe);\n # output: report(0xfffffffd);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x00000000);\n # output: report(0x0000ffff);\n # output: report(0x00000000);\n # output: report(0x00000001);\n # output: report(0x00000000);\n # output: report(0x00000000);\n # output: \n # output: report(0x80007fff);\n # output: report(0x00008000);\n # output: report(0x7fffffff);\n # output: report(0x00000001);\n # output: report(0x00000001);\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 don't have those in this test. */ 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.add */ /* Add two small positive numbers */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 1, 2 /* The carry flag should be ignored. */ TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.add, 1, 2 /* Add two small negative numbers, which should set the carry flag but not the overflow flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, -1, -2 /* Add two quite large positive numbers. Should set neither the overflow nor the carry flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 0x40000000, \ 0x3fffffff /* Add two large positive numbers. Should set the overflow, but not the carry flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 0x40000000, \ 0x40000000 /* Add two quite large negative numbers. Should set the carry, but not the overflow flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, -1073741824, \ -1073741824 /* -1073741824 = 0xC0000000 */ /* Add two large negative numbers. Should set both the overflow and carry flags. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 0xbfffffff, \ 0xbfffffff /* 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_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 0x40000000, \ 0x40000000 /* Check that a carry alone does not cause a RANGE Exception. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 0xffffffff, \ 0xfffffffe /* Check that carry and overflow together cause an exception. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.add, 0xbfffffff, \ 0xbfffffff CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 /* Test l.addc */ /* Add two small positive numbers */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, 1, 2 /* Add two small negative numbers. Sets the carry flag but not the overflow flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, -1, -2 /* Add two quite large positive numbers. Should set neither the overflow nor the carry flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, 0x40000000, \ 0x3fffffff /* Add two quite large positive numbers with a carry in. Should set the overflow but not the carry flag. */ TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.addc, 0x40000000, \ 0x3fffffff /* Add two large positive numbers. Should set the overflow, but not the carry flag. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, 0x40000000, \ 0x40000000 /* Add the largest unsigned value to zero with a carry. This potentially can break a simplistic test for carry that does not consider the carry flag properly. Do it both ways around. */ TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.addc, -1, 0 TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.addc, 0, -1 /* Add two quite large negative numbers. Should set the carry, but not the overflow flag. Here -1073741824 is 0xC0000000. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, -1073741824, \ -1073741824 /* Add two quite large negative numbers that would overflow, with a carry that just avoids the overflow. Should set the carry, but not the overflow flag. Here -1073741824 is 0xC0000000 and -1073741825 is 0xBFFFFFFF. */ TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.addc, -1073741824, \ -1073741825 /* Add two large negative numbers. Should set both the overflow and carry flags. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, -1073741825, \ -1073741825 /* Check that range exceptions are triggered. */ SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 /* Check that an overflow alone causes a RANGE Exception, even when it is the carry that causes the overflow. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, 0x40000000, \ 0x40000000 TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.addc, 0x40000000, \ 0x3fffffff /* Check that a carry alone does not cause a RANGE Exception, even when it is the carry that causes the overflow. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, 0xffffffff, \ 0xfffffffe TEST_INST_FF_I32_I32 SPR_SR_CY, SPR_SR_OV, l.addc, 0x00000000, \ 0xffffffff /* Check that carry and overflow together cause an exception. */ TEST_INST_FF_I32_I32 0, SPR_SR_CY | SPR_SR_OV, l.addc, 0xbfffffff, \ 0xbfffffff CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 /* Test l.addi */ /* Add two small positive numbers */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 1, 2 /* Check carry in is ignored. */ TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addi, 1, 2 /* Add two small negative numbers. Sets the carry flag but not the overflow flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0xffffffff, \ 0xfffe /* Add two quite large positive numbers. Should set neither the overflow nor the carry flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0x7fff8000, \ 0x7fff /* Add two large positive numbers. Should set the overflow, but not the carry flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0x7fffc000, \ 0x4000 /* Add two quite large negative numbers. Should set the carry, but not the overflow flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0x80008000, \ 0x8000 /* Add two large negative numbers. Should set both the overflow and carry flags. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0x80007fff, \ 0x8000 /* 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_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0x7fffc000, \ 0x4000 /* Check that a carry alone does not cause a RANGE Exception. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0xffffffff, \ 0xfffe /* Check that carry and overflow together cause an exception. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addi, 0x80007fff, \ 0x8000 CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 /* Test l.addi */ /* Add two small positive numbers */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 1, 2 /* Add two small negative numbers. Sets the carry flag but not the overflow flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0xffffffff, \ 0xfffe /* Add two quite large positive numbers. Should set neither the overflow nor the carry flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0x7fff8000, \ 0x7fff /* Add two quite large positive numbers with a carry in. Should set the overflow but not the carry flag. */ TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addic, 0x7fff8000, 0x7fff /* Add two large positive numbers. Should set the overflow, but not the carry flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0x7fffc000, \ 0x4000 /* Add the largest unsigned value to zero with a carry. This potentially can break a simplistic test for carry that does not consider the carry flag properly. Do it both ways around. */ TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addic, 0xffffffff, 0x0000 TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addic, 0x00000000, 0xffff /* Add two quite large negative numbers. Should set the carry, but not the overflow flag. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0x80008000, \ 0x8000 /* Add two quite large negative numbers that would overflow, with a carry that just avoids the overflow. This should set the carry, but not the overflow flag. */ TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addic, 0x80007fff, 0x8000 /* Add two large negative numbers. Should set both the overflow and carry flags. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0x80007fff, \ 0x8000 /* Check that range exceptions are triggered. */ SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 /* Check that an overflow alone causes a RANGE Exception, even when it is the carry that causes the overflow. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0x7fffc000, \ 0x4000 TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addic, 0x7fffc000, 0x3fff /* Check that a carry alone does not cause a RANGE Exception, even when it is the carry that causes the overflow. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0xffffffff, \ 0xfffe TEST_INST_FF_I32_I16 SPR_SR_CY, SPR_SR_OV, l.addic, 0x00000000, 0xffff /* Check that carry and overflow together cause an exception. */ TEST_INST_FF_I32_I16 0, SPR_SR_CY | SPR_SR_OV, l.addic, 0x80007fff, \ 0x8000 CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 POP LINK_REGISTER_R9 RETURN_TO_LINK_REGISTER_R9