98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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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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*/
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#include <stdio.h>
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static int sfrecipa(int Rs, int Rt, int *pred_result)
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{
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int result;
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int predval;
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asm volatile("%0,p0 = sfrecipa(%2, %3)\n\t"
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"%1 = p0\n\t"
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: "+r"(result), "=r"(predval)
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: "r"(Rs), "r"(Rt)
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: "p0");
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*pred_result = predval;
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return result;
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}
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static int sfinvsqrta(int Rs, int *pred_result)
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{
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int result;
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int predval;
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asm volatile("%0,p0 = sfinvsqrta(%2)\n\t"
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"%1 = p0\n\t"
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: "+r"(result), "=r"(predval)
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: "r"(Rs)
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: "p0");
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*pred_result = predval;
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return result;
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}
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int err;
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static void check(int val, int expect)
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{
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if (val != expect) {
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printf("ERROR: 0x%08x != 0x%08x\n", val, expect);
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err++;
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}
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}
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static void check_p(int val, int expect)
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{
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if (val != expect) {
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printf("ERROR: 0x%02x != 0x%02x\n", val, expect);
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err++;
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}
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}
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static void test_sfrecipa()
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{
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int res;
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int pred_result;
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res = sfrecipa(0x04030201, 0x05060708, &pred_result);
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check(res, 0x59f38001);
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check_p(pred_result, 0x00);
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}
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static void test_sfinvsqrta()
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{
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int res;
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int pred_result;
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res = sfinvsqrta(0x04030201, &pred_result);
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check(res, 0x4d330000);
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check_p(pred_result, 0xe0);
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res = sfinvsqrta(0x0, &pred_result);
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check(res, 0x3f800000);
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check_p(pred_result, 0x0);
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}
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int main()
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{
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test_sfrecipa();
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test_sfinvsqrta();
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puts(err ? "FAIL" : "PASS");
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return err;
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}
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