129 lines
3.3 KiB
ArmAsm
129 lines
3.3 KiB
ArmAsm
/* Tests some basic fpu instructions.
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Copyright (C) 2017-2022 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(0x00007ab7);\n
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# output: report(0xffffd8f0);\n
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# output: report(0x46f56e00);\n
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# output: report(0xc61c4000);\n
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# output: report(0x00007ab7);\n
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# output: report(0xffffd8f0);\n
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# output: \n
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# output: report(0xc0490e56);\n
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# output: report(0xfffffffd);\n
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# output: \n
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# output: report(0x4e6b4bbb);\n
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# output: \n
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# output: report(0xbdc0be40);\n
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# output: \n
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# output: report(0x00000001);\n
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# output: \n
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# output: WARNING: ignoring fpu error caught in fast mode.\n
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# output: report(0x00000000);\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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/* Floating point exception. */
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.org 0xd00
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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 don't have those in this test. */
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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 -4(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 lf.itof.s int to float conversion. Setting up:
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* r10 31415.0f
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* r12 -10000.0f
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*/
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l.ori r11, r0, 31415
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l.ori r13, r0, -10000
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l.movhi r15, 0xffff
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l.or r13, r13, r15
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REPORT_REG_TO_CONSOLE r11
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REPORT_REG_TO_CONSOLE r13
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lf.itof.s r10, r11
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lf.itof.s r12, r13
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REPORT_REG_TO_CONSOLE r10
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REPORT_REG_TO_CONSOLE r12
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/* Test lf.ftoi.s float to int conversion. */
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lf.ftoi.s r11, r10
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lf.ftoi.s r13, r12
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REPORT_REG_TO_CONSOLE r11
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REPORT_REG_TO_CONSOLE r13
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PRINT_NEWLINE_TO_CONSOLE
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/* Test lf.div.s divide 31415 by -1000 to get -pi. Setting up:
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* r8 -3.1415f
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*/
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lf.div.s r8, r10, r12
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REPORT_REG_TO_CONSOLE r8
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lf.ftoi.s r11, r8
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REPORT_REG_TO_CONSOLE r11
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PRINT_NEWLINE_TO_CONSOLE
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/* Test lf.mul.s multiply -pi x -10000 x 31415. Setting up:
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* r6 986902225
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*/
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lf.mul.s r6, r8, r12
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lf.mul.s r6, r6, r10
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REPORT_REG_TO_CONSOLE r6
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PRINT_NEWLINE_TO_CONSOLE
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/* Test lf.rem.s remainder of 986902225 / -pi. */
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lf.rem.s r2, r6, r8
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REPORT_REG_TO_CONSOLE r2
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PRINT_NEWLINE_TO_CONSOLE
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/* Test lf.sfge.s set flag if r6 >= r10. */
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lf.sfge.s r6, r10
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MOVE_FROM_SPR r2, SPR_SR
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REPORT_BIT_TO_CONSOLE r2, SPR_SR_F
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PRINT_NEWLINE_TO_CONSOLE
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/* Test raising an exception by dividing by 0. */
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MOVE_FROM_SPR r2, SPR_FPCSR
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l.ori r2, r2, 0x1
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MOVE_TO_SPR SPR_FPCSR, r2
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div0: lf.div.s r2, r8, r0
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REPORT_EXCEPTION div0
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PRINT_NEWLINE_TO_CONSOLE
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POP LINK_REGISTER_R9
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RETURN_TO_LINK_REGISTER_R9
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