Vortex 2.0 changes:

+ Microarchitecture optimizations
+ 64-bit support
+ Xilinx FPGA support
+ LLVM-16 support
+ Refactoring and quality control fixes

tests/kernel/fibonacci/Makefile

@@ -0,0 +1,52 @@
+XLEN ?= 32
+
+ifeq ($(XLEN),64)
+RISCV_TOOLCHAIN_PATH ?= /opt/riscv64-gnu-toolchain
+CFLAGS += -march=rv64imafd -mabi=lp64d
+else
+RISCV_TOOLCHAIN_PATH ?= /opt/riscv-gnu-toolchain
+CFLAGS += -march=rv32imaf -mabi=ilp32f
+endif
+
+RISCV_PREFIX ?= riscv$(XLEN)-unknown-elf
+
+VORTEX_KN_PATH ?= $(realpath ../../../kernel)
+
+CC = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)-gcc
+AR = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)-gcc-ar
+DP = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)-objdump
+CP = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)-objcopy
+
+SIM_DIR = ../../../sim
+
+CFLAGS += -O3 -mcmodel=medany -fno-exceptions -nostartfiles -fdata-sections -ffunction-sections
+CFLAGS += -I$(VORTEX_KN_PATH)/include -I$(VORTEX_KN_PATH)/../hw
+
+LDFLAGS += -lm -Wl,-Bstatic,--gc-sections,-T,$(VORTEX_KN_PATH)/linker/vx_link$(XLEN).ld,--defsym=STARTUP_ADDR=0x80000000 $(VORTEX_KN_PATH)/libvortexrt.a
+
+PROJECT = fibonacci
+
+SRCS = main.cpp
+
+all: $(PROJECT).elf $(PROJECT).bin $(PROJECT).dump
+
+$(PROJECT).dump: $(PROJECT).elf
+	$(DP) -D $(PROJECT).elf > $(PROJECT).dump
+
+$(PROJECT).bin: $(PROJECT).elf
+	$(CP) -O binary $(PROJECT).elf $(PROJECT).bin
+
+$(PROJECT).elf: $(SRCS)
+	$(CC) $(CFLAGS) $(SRCS) $(LDFLAGS) -o $(PROJECT).elf
+
+run-rtlsim: $(PROJECT).bin
+	$(SIM_DIR)/rtlsim/rtlsim $(PROJECT).bin
+
+run-simx: $(PROJECT).bin
+	$(SIM_DIR)/simx/simx $(PROJECT).bin
+
+.depend: $(SRCS)
+	$(CC) $(CFLAGS) -MM $^ > .depend;
+
+clean:
+	rm -rf *.elf *.bin *.dump .depend 

tests/kernel/fibonacci/main.cpp

@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <vx_print.h>
+
+const int Num = 9;
+const int Ans = 34;
+
+int fibonacci(int n) {
+   if (n <= 1)
+      return n;
+   return fibonacci(n-1) + fibonacci(n-2);
+}
+
+int main() {
+	int errors = 0;
+
+	int fib = fibonacci(Num);
+	
+	vx_printf("fibonacci(%d) = %d\n", Num, fib);
+
+	if (fib == Ans) {
+		vx_printf("Passed!\n");
+	} else {
+		vx_printf("Failed! value=%d, expected=%d\n", fib, Ans);
+		errors = 1;
+	}
+
+	return errors;
+}
+
+
+
+
+