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[sw/example/floating_point_test] removed timing test; added compile guard

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stnolting 2021-03-26 16:20:34 +01:00
parent 8325ff33ff
commit 14db698f10
1 changed files with 11 additions and 35 deletions
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46
sw/example/floating_point_test/main.c
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@ -82,8 +82,6 @@
#define RUN_CLASSIFY_TESTS (1)
//** Run unsupported instructions tests when != 0 */
#define RUN_UNAVAIL_TESTS (1)
//** Run instruction timing tests when != 0 */
#define RUN_TIMING_TESTS (1)
/**@}*/
@ -129,6 +127,17 @@ int main() {
}
// Disable compilation by default
#ifndef RUN_TEST
#warning Program HAS NOT BEEN COMPILED! Use >>make USER_FLAGS+=-DRUN_TEST clean_all exe<< to compile it.
// inform the user if you are actually executing this
neorv32_uart_printf("ERROR! Program has not been compiled. Use >>make USER_FLAGS+=-DRUN_TEST clean_all exe<< to compile it.\n");
return 0;
#endif
// intro
neorv32_uart_printf("<<< Zfinx extension test >>>\n");
#if (SILENT_MODE != 0)
@ -479,39 +488,6 @@ int main() {
#endif
// ----------------------------------------------------------------------------
// Instruction execution timing test
// ----------------------------------------------------------------------------
#if (RUN_TIMING_TESTS != 0)
neorv32_uart_printf("\n# Instruction timing test...\n", test_cnt);
err_cnt = 0;
const uint32_t num_runs = 1024;
uint32_t time_start, time_hw, time_sw;
time_hw = 0;
time_sw = 0;
for (i=0;i<num_runs; i++) {
opa.binary_value = get_test_vector();
opb.binary_value = get_test_vector();
time_start = neorv32_cpu_csr_read(CSR_MCYCLE);
res_hw.float_value = riscv_intrinsic_fadds(opa.float_value, opb.float_value);
time_hw += neorv32_cpu_csr_read(CSR_MCYCLE) - time_start;
time_start = neorv32_cpu_csr_read(CSR_MCYCLE);
res_sw.float_value = riscv_emulate_fadds(opa.float_value, opb.float_value);
time_sw += neorv32_cpu_csr_read(CSR_MCYCLE) - time_start;
if (res_hw.binary_value != res_sw.binary_value) {
neorv32_uart_printf("\n%c[1m[error]%c[0m\n", 27, 27);
}
}
neorv32_uart_printf("Average FADD.S execution time INCLUDING calling overhead (%u runs): [SW] = %u cycles vs. [HW] = %u cycles\n", num_runs, time_sw/num_runs, time_hw/num_runs);
#endif
// final report
if (err_cnt_total != 0) {
neorv32_uart_printf("\n%c[1m[ZFINX EXTENSION VERIFICATION FAILED!]%c[0m\n", 27, 27);