URL
https://opencores.org/ocsvn/neorv32/neorv32/trunk
Subversion Repositories neorv32
Compare Revisions
- This comparison shows the changes necessary to convert path
/neorv32/trunk/sw/example
- from Rev 8 to Rev 11
- ↔ Reverse comparison
Rev 8 → Rev 11
/cpu_test/main.c
119,6 → 119,12
int cnt_ok = 0; |
int cnt_test = 0; |
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union { |
uint64_t uint64; |
uint32_t uint32[sizeof(uint64_t)/2]; |
} cpu_systime; |
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// check if UART unit is implemented at all |
if (neorv32_uart_available() == 0) { |
return 0; |
139,6 → 145,7
neorv32_uart_setup(BAUD_RATE, 0, 0); |
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neorv32_mtime_set_time(0); |
// set CMP of machine system timer MTIME to max to prevent an IRQ |
uint64_t mtime_cmp_max = 0xFFFFFFFFFFFFFFFFL; |
neorv32_mtime_set_timecmp(mtime_cmp_max); |
146,11 → 153,14
// intro |
neorv32_uart_printf("\n\n------ CPU TEST ------\n\n"); |
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// show project credits |
neorv32_rte_print_credits(); |
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// show full HW config report |
neorv32_rte_print_hw_config(); |
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// intro2 |
neorv32_uart_printf("\n\nNEORV32 exceptions and interrupts test program\n\n"); |
neorv32_uart_printf("\n\nStarting tests...\n\n"); |
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// install exception handler functions |
int install_err = 0; |
197,8 → 207,72
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// ---------------------------------------------------------- |
// Test counter CSR access for mcycle[h] |
// ---------------------------------------------------------- |
neorv32_uart_printf("MCYCLE[H]: "); |
cnt_test++; |
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neorv32_cpu_csr_write(CSR_MCYCLE, 0x1BCD1234); |
neorv32_cpu_csr_write(CSR_MCYCLEH, 0x22334455); |
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if (((neorv32_cpu_csr_read(CSR_MCYCLE) & 0xffff0000L) == 0x1BCD0000) && |
(neorv32_cpu_csr_read(CSR_MCYCLEH) == 0x22334455)) { |
neorv32_uart_printf("ok\n"); |
cnt_ok++; |
} |
else { |
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
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// ---------------------------------------------------------- |
// Test counter CSR access for minstret[h] |
// ---------------------------------------------------------- |
neorv32_uart_printf("MINSTRET[H]: "); |
cnt_test++; |
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neorv32_cpu_csr_write(CSR_MINSTRET, 0x11224499); |
neorv32_cpu_csr_write(CSR_MINSTRETH, 0x00110011); |
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if (((neorv32_cpu_csr_read(CSR_MINSTRET) & 0xffff0000L) == 0x11220000) && |
(neorv32_cpu_csr_read(CSR_MINSTRETH) == 0x00110011)) { |
neorv32_uart_printf("ok\n"); |
cnt_ok++; |
} |
else { |
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
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// ---------------------------------------------------------- |
// Test time[h] (must be == MTIME) |
// ---------------------------------------------------------- |
neorv32_uart_printf("TIME[H]: "); |
cnt_test++; |
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cpu_systime.uint32[0] = neorv32_cpu_csr_read(CSR_TIME); |
cpu_systime.uint32[1] = neorv32_cpu_csr_read(CSR_TIMEH); |
cpu_systime.uint64 &= 0xFFFFFFFFFFFF0000LL; |
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uint64_t mtime_systime = neorv32_mtime_get_time() & 0xFFFFFFFFFFFF0000LL; |
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if (cpu_systime.uint64 == mtime_systime) { |
neorv32_uart_printf("ok\n"); |
cnt_ok++; |
} |
else { |
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
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// ---------------------------------------------------------- |
// Test fence instructions - make sure CPU does not crash here and throws no exception |
// a more complex test is provided by the RISC-V compliance test |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("FENCE(.I): "); |
cnt_test++; |
asm volatile ("fence"); |
212,12 → 286,12
neorv32_uart_printf("ok\n"); |
cnt_ok++; |
} |
exception_handler_answer = 0; |
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// ---------------------------------------------------------- |
// Unaligned instruction address |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC I_ALIGN: "); |
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// skip if C-mode is not implemented |
237,11 → 311,10
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
} |
else { |
neorv32_uart_printf("skipped (no EXC I_ALIGN possible in C-mode)\n"); |
neorv32_uart_printf("skipped (not possible when C-EXT enabled)\n"); |
} |
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248,6 → 321,7
// ---------------------------------------------------------- |
// Instruction access fault |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC I_ACC: "); |
cnt_test++; |
|
263,7 → 337,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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270,6 → 343,7
// ---------------------------------------------------------- |
// Illegal instruction |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC I_ILLEG: "); |
cnt_test++; |
|
291,7 → 365,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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298,6 → 371,7
// ---------------------------------------------------------- |
// Breakpoint instruction |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC BREAK: "); |
cnt_test++; |
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312,7 → 386,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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319,6 → 392,7
// ---------------------------------------------------------- |
// Unaligned load address |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC L_ALIGN: "); |
cnt_test++; |
|
334,7 → 408,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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341,6 → 414,7
// ---------------------------------------------------------- |
// Load access fault |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC L_ACC: "); |
cnt_test++; |
|
356,7 → 430,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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363,6 → 436,7
// ---------------------------------------------------------- |
// Unaligned store address |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC S_ALIGN: "); |
cnt_test++; |
|
378,7 → 452,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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385,6 → 458,7
// ---------------------------------------------------------- |
// Store access fault |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC S_ACC: "); |
cnt_test++; |
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400,7 → 474,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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407,6 → 480,7
// ---------------------------------------------------------- |
// Environment call |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("EXC ENVCALL: "); |
cnt_test++; |
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421,7 → 495,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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428,6 → 501,7
// ---------------------------------------------------------- |
// Machine software interrupt |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("IRQ MSI: "); |
cnt_test++; |
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443,7 → 517,6
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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450,6 → 523,7
// ---------------------------------------------------------- |
// Machine timer interrupt (MTIME) |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("IRQ MTI: "); |
cnt_test++; |
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471,13 → 545,16
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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// no more mtime interrupts |
neorv32_mtime_set_timecmp(-1); |
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// ---------------------------------------------------------- |
// Machine external interrupt (via CLIC) |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("IRQ MEI: "); |
cnt_test++; |
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499,10 → 576,36
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
exception_handler_answer = 0; |
#endif |
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// ---------------------------------------------------------- |
// Test WFI ("sleep") instructions |
// ---------------------------------------------------------- |
exception_handler_answer = 0; |
neorv32_uart_printf("WFI: "); |
cnt_test++; |
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// program timer to wake up |
neorv32_mtime_set_timecmp(neorv32_mtime_get_time() + 1000); |
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// put CPU into sleep mode |
asm volatile ("wfi"); |
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if (exception_handler_answer != ANSWER_MTI) { |
neorv32_uart_printf("fail\n"); |
cnt_fail++; |
} |
else { |
neorv32_uart_printf("ok\n"); |
cnt_ok++; |
} |
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// error report |
neorv32_uart_printf("\n\nTests: %i\nOK: %i\nFAIL: %i\n\n", cnt_test, cnt_ok, cnt_fail); |
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