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| author | Andrew Waterman <aswaterman@gmail.com> | 2017-01-05 15:14:28 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-01-05 15:14:28 -0500 |
| commit | d69f4cb8653f4974374f98debf9ce2cc820a2b57 (patch) | |
| tree | cc6889cdc8877bcf4b1a8e8760c773e9ec0ef76f /software/dhrystone | |
| parent | e641c398daa91d896ce37fbb73015c054a4e0b21 (diff) | |
| parent | b8057b191231dea4b973f1d5066f59afa3881dba (diff) | |
Merge pull request #38 from sifive/benchmarking
Benchmarking
Diffstat (limited to 'software/dhrystone')
| -rw-r--r-- | software/dhrystone/Makefile | 2 | ||||
| -rw-r--r-- | software/dhrystone/dhry_stubs.c | 7 |
2 files changed, 3 insertions, 6 deletions
diff --git a/software/dhrystone/Makefile b/software/dhrystone/Makefile index a55b1ec..78a7b23 100644 --- a/software/dhrystone/Makefile +++ b/software/dhrystone/Makefile @@ -5,7 +5,7 @@ C_SRCS := dhry_stubs.c dhry_printf.c HEADERS := dhry.h DHRY_SRCS := dhry_1.c dhry_2.c -DHRY_CFLAGS := -O2 -DTIME -fno-inline -fno-builtin-printf -Wno-implicit +DHRY_CFLAGS := -O2 -DTIME -fno-inline -fno-builtin-printf -Wno-implicit -march=rv32ima XLEN ?= 32 CFLAGS := -Os -fno-common diff --git a/software/dhrystone/dhry_stubs.c b/software/dhrystone/dhry_stubs.c index d3bd14c..0616f86 100644 --- a/software/dhrystone/dhry_stubs.c +++ b/software/dhrystone/dhry_stubs.c @@ -3,16 +3,13 @@ /* The functions in this file are only meant to support Dhrystone on an * embedded RV32 system and are obviously incorrect in general. */ -// return the cycle counter as though it were the current time long time(void) { - long t; - asm volatile ("csrr %0, mcycle" : "=r" (t)); - return t / (get_cpu_freq() / 1000); + return get_timer_value() / get_timer_freq(); } // set the number of dhrystone iterations void __wrap_scanf(const char* fmt, int* n) { - *n = 1500000; + *n = 100000000; } |